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673 Commits

Author SHA1 Message Date
4b541f1a18 Release 1.55.0
[SVN r86621]
2013-11-11 19:45:21 +00:00
93447d3382 Merged 84441 to release
[SVN r86251]
2013-10-12 01:35:27 +00:00
a9335aa664 big merge from trunk
[SVN r85669]
2013-09-15 06:27:58 +00:00
8aef19648b big merge from trunk
[SVN r85668]
2013-09-15 06:16:39 +00:00
1f718e4520 Wave: Merging from trunk
[SVN r85641]
2013-09-10 12:47:28 +00:00
66ddb762d3 merge [84937] from trunk, fixes #8759
[SVN r85426]
2013-08-22 19:45:30 +00:00
d354c5183b Tweaks for MSVC. MSVC version of map is not yet move enables so it is failing the move test
[SVN r82728]
2013-02-04 12:15:02 +00:00
fb3bd4cea8 minor cleanup
[SVN r82727]
2013-02-04 11:54:59 +00:00
9672fe5385 map move supported + value_at_impl added
[SVN r82726]
2013-02-04 11:52:58 +00:00
085c3c25ca more map tests (including move test)
[SVN r82725]
2013-02-04 11:52:18 +00:00
85119dbd21 added as_map
fixed bug: wrong iterator category for map_iterator

[SVN r82721]
2013-02-04 09:52:52 +00:00
764a31e9f5 fixed typo
[SVN r82714]
2013-02-04 06:22:50 +00:00
228401d898 More map tests and more API features implemented + tweaks to affected components
[SVN r82713]
2013-02-04 06:21:45 +00:00
aba201eb4e Added more map tests
[SVN r82712]
2013-02-04 06:20:10 +00:00
9c5d6bcc8c added pair < operator for case where key (first type) is the same.
[SVN r82709]
2013-02-04 04:10:29 +00:00
7b6cf39540 modern c++11 map implemented + various tweaks
[SVN r82708]
2013-02-04 03:49:34 +00:00
996f4152d2 modern c++11 map implemented
[SVN r82707]
2013-02-04 03:46:42 +00:00
d128c6f6aa Moving non-variadic map implementation to detail/cpp03 directory
[SVN r82701]
2013-02-03 11:50:48 +00:00
fec1da027c Cleanup deque to clearly separate the C++03 code from c++11 code
[SVN r82698]
2013-02-03 10:31:46 +00:00
a1a6e42590 Removing the preprocessed file generation which is meant for internal use only
[SVN r82697]
2013-02-03 10:13:41 +00:00
4272519a3c cleanup
[SVN r82670]
2013-01-31 15:56:00 +00:00
9dcdfa323f Better deque conversion
[SVN r82669]
2013-01-31 15:31:28 +00:00
5a520585d8 Fixes #7955
[SVN r82668]
2013-01-31 13:01:36 +00:00
1823f30420 Some cleanup
[SVN r82636]
2013-01-27 14:41:39 +00:00
f96bbef8fa MSVC (VC11) fixes for latest updates
[SVN r82634]
2013-01-27 12:15:26 +00:00
f1687bffcf Added LF at the end
[SVN r82632]
2013-01-27 10:14:40 +00:00
6c17c04ce6 Workaround for some tests on C++11 to allow disambiguation of && and const& arguments to ctors
[SVN r82631]
2013-01-27 10:14:16 +00:00
b7d02a8c55 + Fixes ticket #7914
+ C++11 implementations for make_deque, deque_tie and as_deque

[SVN r82630]
2013-01-27 07:17:01 +00:00
6a47d86d72 C++ fixes
[SVN r82629]
2013-01-27 07:13:58 +00:00
2f61e2b707 disabling some tests with errors on c++11
[SVN r82628]
2013-01-27 04:24:40 +00:00
ea0cad5800 Added fusion::move algorithm
[SVN r82550]
2013-01-19 14:37:00 +00:00
f9d6e05676 Applied patches for Tickets #7738, #7737 and #7646
[SVN r82348]
2013-01-04 01:43:06 +00:00
211b47b47d clarify in fusion docs that associative sequences are not checked for key uniqueness.
[SVN r81891]
2012-12-13 09:41:50 +00:00
6d265316ed Workaround for ObjC (mis)use of nil (from Mathias Gaunard)
[SVN r81628]
2012-11-30 02:31:23 +00:00
8d6200ef58 Removed usage of deprecated macros in Boost.Fusion and Boost.Spirit
[SVN r81569]
2012-11-26 18:44:46 +00:00
e1819c11b2 Remove usage of deprecated macros
[SVN r81452]
2012-11-21 03:12:31 +00:00
cfbbba272e Fixes for Ticket #7569 ( Compile Error using BOOST_FUSION_DEFINE_STRUCT_INLINE with VC10 and GCC <4.5 )
[SVN r81165]
2012-11-04 00:18:41 +00:00
d01148d339 Fixed typo
[SVN r81164]
2012-11-03 23:44:36 +00:00
fc38122f0f Merge from trunk
[SVN r81061]
2012-10-25 02:06:21 +00:00
940c594d3e Merge from trunk
[SVN r81060]
2012-10-25 02:06:04 +00:00
f760ed7b8f removing c++11 requirements in jamfile (mistakenly added)
[SVN r80865]
2012-10-05 06:15:02 +00:00
752f911a91 #7427 (Warning fixes in fusion)
[SVN r80812]
2012-10-02 01:12:19 +00:00
b57cd4ede9 - patch from nathan ridge
- fixed deque regression 

[SVN r80458]
2012-09-09 00:27:37 +00:00
a856857cb7 - Fixed code to allow decltype implementation of boost::result_of with BOOST_RESULT_OF_USE_DECLTYPE defined.
- Reverted sequence/iterator.hpp to original <correct-no-workaround> version.

[SVN r80396]
2012-09-04 13:42:14 +00:00
78ff3d8831 Fixed code to allow decltype implementation of boost::result_of with BOOST_RESULT_OF_USE_DECLTYPE defined.
[SVN r80395]
2012-09-04 13:40:38 +00:00
80799eed95 C++11 fixes for deque
[SVN r80392]
2012-09-04 05:04:26 +00:00
35ec74edbc C++11 fixes for deque
[SVN r80391]
2012-09-04 05:04:25 +00:00
106702d388 Fix to silence MSVC warnings (Nathan Ridge)
[SVN r80368]
2012-09-03 07:08:47 +00:00
4382b64aa7 Updated changelog
removed unmaintained todo.txt

[SVN r80347]
2012-09-01 02:12:46 +00:00
26ba07f36c move-assign test tweaks
[SVN r80346]
2012-09-01 02:02:09 +00:00
a53f93ff1a move-assign for vector
[SVN r80345]
2012-09-01 02:01:26 +00:00
705ca2b61b move-assign for deque
[SVN r80344]
2012-09-01 01:04:12 +00:00
e587ad4d50 Added move-assign test
[SVN r80343]
2012-09-01 01:02:46 +00:00
3613310b62 deque move-ctor OK on gcc
[SVN r80334]
2012-08-31 15:58:31 +00:00
5946ab9936 deque move-ctor OK on gcc
[SVN r80333]
2012-08-31 15:57:49 +00:00
c8b47ca3ca Added move ctors for vector and deque (deque for gcc partially working for now)
no preprocessed files yet

[SVN r80331]
2012-08-31 14:33:12 +00:00
16de1dcd01 Added move ctors for vector and deque (deque for gcc partially working for now)
[SVN r80330]
2012-08-31 14:32:08 +00:00
038976991e Fixed MSVC errors (from Nathan Ridge)
[SVN r80326]
2012-08-31 04:12:29 +00:00
9cceb79cf8 update from trunk fixing http://boost.2283326.n4.nabble.com/fusion-g-4-6-deque-and-c-0x-compile-error-td4632499.html
[SVN r79958]
2012-08-11 02:36:08 +00:00
4ccb4328f6 Fusion: fixing bogus preprocessor directive (missing newline at end of file)
[SVN r79788]
2012-07-28 20:44:56 +00:00
eaf9e79e85 latest patch from Nathan Ridge
[SVN r79306]
2012-07-05 23:40:17 +00:00
a3b0cad1e7 latest oatch from Nathan Ridge
[SVN r79305]
2012-07-05 23:39:50 +00:00
5a51e5d9aa Merge from trunk
[SVN r79274]
2012-07-05 04:40:37 +00:00
85583b5ea9 allow boolean traits implementations to use std::true_type and std::false_type
[SVN r79131]
2012-06-27 04:27:50 +00:00
191a3d75ed Fix for Ticket #6965 from Joel Falcou
[SVN r79099]
2012-06-26 10:16:35 +00:00
136331963a Added test for Ticket #6965
[SVN r79098]
2012-06-26 10:14:49 +00:00
bcb5fd9618 Merge r77879 from trunk.
I think it should have been merged in r78201, and was messing up the doc build
(you can see it in the content in 1.50 beta1).


[SVN r78876]
2012-06-11 01:30:33 +00:00
70589c53c6 BOOST_FUSION_DEFINE_STRUCT_INLINE patch by Nathan Ridge
[SVN r78509]
2012-05-19 01:24:55 +00:00
ed3776ce8c BOOST_FUSION_DEFINE_STRUCT_INLINE patch by Nathan Ridge
[SVN r78508]
2012-05-19 01:24:16 +00:00
a46bd7ab72 patch for ticket #6910 by michel
[SVN r78507]
2012-05-19 01:18:43 +00:00
8ce40ebd0c Patch by Nathan Ridge to allow BOOST_FUSION_ADAPT_ADT adapted classes to be compared using relational operators.
[SVN r78490]
2012-05-17 01:10:20 +00:00
51ade6529c typo fix by Mario Lang
[SVN r78464]
2012-05-14 00:41:42 +00:00
b63c8214d7 Patches from Nathan Ridge using SFINAE to disable the Fusion algorithms for non-{Fusion sequence} types
[SVN r78463]
2012-05-14 00:37:21 +00:00
e03dcc7c54 added missing file from last merge
[SVN r78203]
2012-04-26 02:27:13 +00:00
2e99690387 added missing file from last merge
[SVN r78202]
2012-04-26 00:26:25 +00:00
ee33ea5cfa Merging 77932-78199 from trunk
[SVN r78201]
2012-04-26 00:18:58 +00:00
93477e270e Merging 77932-78199 from trunk
[SVN r78200]
2012-04-26 00:18:51 +00:00
66e8a6d3b7 Doc updates for deque
[SVN r78199]
2012-04-26 00:03:42 +00:00
524769f6fb patch for clang from Michel Morin
[SVN r78176]
2012-04-24 01:40:17 +00:00
654dfbedb8 patch for clang from Michel Morin
[SVN r78175]
2012-04-24 01:39:43 +00:00
fad4a7ebeb rearranging files
[SVN r78106]
2012-04-21 06:09:54 +00:00
01f002f084 tweaked cref_result and ref_result to be non-lazy (for consistency).
[SVN r78058]
2012-04-18 02:57:56 +00:00
c8224c8bdf deque fix for ambiguity and making ctors explicit
[SVN r78056]
2012-04-18 01:18:10 +00:00
b7eda8d0f4 Doc updates for deque
[SVN r77984]
2012-04-15 09:47:19 +00:00
ecc87abaab more deque updates
[SVN r77967]
2012-04-14 00:57:15 +00:00
a3c2258017 Added deque docs
[SVN r77879]
2012-04-10 02:30:18 +00:00
d87b5a8000 minor tweaks
[SVN r77814]
2012-04-07 12:02:16 +00:00
b34a8c79e8 hide detail stuff
[SVN r77812]
2012-04-07 11:07:35 +00:00
ec99f829f3 updates
[SVN r77811]
2012-04-07 10:57:10 +00:00
2936fd30fb missing include
[SVN r77810]
2012-04-07 10:26:23 +00:00
a36f0f95cb c++ port of deque working
[SVN r77809]
2012-04-07 10:08:00 +00:00
93ce3bd9bf c++ port of deque underway
[SVN r77808]
2012-04-07 09:56:07 +00:00
e15c27bc8b partial update (upgrade to c++11)
[SVN r77805]
2012-04-07 07:54:18 +00:00
92d51dcfa8 c++11 version start
[SVN r77803]
2012-04-07 07:43:05 +00:00
221e07a7a3 + bumped copyright date
+ mpl::int_ optimizations

[SVN r77802]
2012-04-07 07:34:00 +00:00
2038772e90 fixed wrong spelling
[SVN r77472]
2012-03-22 10:45:12 +00:00
b6142f1613 Add newlines at end of file to avoid warnings like this:
boost/include/boost/fusion/tuple/detail/preprocessed/tuple.hpp:21:7: warning: no newline at end of file



[SVN r77424]
2012-03-20 02:12:55 +00:00
df0fbd1d9d typo fix
[SVN r77114]
2012-02-25 01:09:58 +00:00
b159898a47 Fix missed merge from 6338
[SVN r76791]
2012-01-30 00:13:38 +00:00
38cd16639d Fixes Ticket #6372
[SVN r76395]
2012-01-10 02:03:43 +00:00
1c51ad943a Fix for ticket #6338
[SVN r76238]
2011-12-31 05:48:27 +00:00
9a8955fbe1 Merge from trunk
[SVN r75980]
2011-12-16 02:14:17 +00:00
a25a7092d8 Patches from Tim Blechmann
[SVN r75976]
2011-12-16 00:14:49 +00:00
48e4118768 Fixes for MSVC workarounds from Freundlich: http://codepad.org/wRelwDJt
[SVN r75595]
2011-11-21 14:43:19 +00:00
0a520f6021 fix problem where sizeof(int) != sizeof(long)
[SVN r75563]
2011-11-20 10:59:09 +00:00
bbf10066bc C++11 patches by Michel Morin
[SVN r75394]
2011-11-07 22:07:05 +00:00
44b337abb0 Fix Ticket #6067
[SVN r75320]
2011-11-05 01:05:04 +00:00
c2052a3c0c Fix Ticket #6067
[SVN r75318]
2011-11-04 20:37:33 +00:00
480183059e + Fixes Ticket #6016 using a two-level specialization such that specialization is preferred over SFINAE.
+ Removes tag_of_fallback. It's not needed anymore. The proper way is to specialize tag_of.

[SVN r74934]
2011-10-13 00:23:40 +00:00
af16a84f09 Bumped copyright date and version to 2.1 (it's about time!) + fixed copyright notices and dates.
[SVN r74887]
2011-10-10 10:38:37 +00:00
fd82b51cec Wrong version. Should be 2.2 + fixed copyright notices and dates
[SVN r74886]
2011-10-10 10:37:53 +00:00
24bca52c5e Wrong version. Should be 2.2.
[SVN r74885]
2011-10-10 10:08:44 +00:00
4b6dddde03 Bumped copyright date and version to 2.1 (it's about time!).
[SVN r74884]
2011-10-10 10:07:45 +00:00
459a1dba3d Bumped copyright date and version to 2.1 (it's about time!).
[SVN r74883]
2011-10-10 10:05:49 +00:00
10274e7884 Made map random access. Thanks to Brandon Kohn!
[SVN r74882]
2011-10-10 09:55:52 +00:00
b6df98e86c Made map random access. Thanks to Brandon Kohn!
[SVN r74881]
2011-10-10 09:55:41 +00:00
01156b172a Fix for ticket #6000
[SVN r74873]
2011-10-10 02:33:13 +00:00
4be9e08af7 Fix for ticket #6000
[SVN r74872]
2011-10-10 00:59:32 +00:00
f46b2aeb73 Fix for ticket #6000
[SVN r74871]
2011-10-10 00:58:24 +00:00
21301c93dc Fix for ticket #6000
[SVN r74870]
2011-10-10 00:47:40 +00:00
295bacb652 Merge from trunk
[SVN r74791]
2011-10-08 08:23:11 +00:00
b905aa11af Added adapter for std::tuple (only for implementations using variadic templates)
[SVN r74788]
2011-10-08 03:47:16 +00:00
e08976a68d fix for case where Sequence is const
[SVN r74589]
2011-09-27 11:45:24 +00:00
a0db9cc855 Fusion: fix tag_of_fallback
[SVN r74574]
2011-09-26 12:02:10 +00:00
0b875180bf Removed unmaintained changelist.txt. Just use SVN log.
[SVN r74570]
2011-09-26 05:44:44 +00:00
b7fb20e69a Fusion: updates
[SVN r74566]
2011-09-25 17:36:13 +00:00
159426b8af Added adapter for std::tuple (only for implementations using variadic templates)
[SVN r74547]
2011-09-24 13:07:24 +00:00
b2c3737eaf Added adapter for std::tuple (only for implementations using variadic templates)
[SVN r74546]
2011-09-24 13:07:09 +00:00
d1a397c427 Patch to make deriving from fusion::sequence_facade makes the derived class an MPL sequence by Nathan Ridge.
[SVN r74473]
2011-09-20 01:48:47 +00:00
674f60e9b1 const-correctness patch by Nathan Ridge.
[SVN r74472]
2011-09-20 01:41:38 +00:00
2dd633a572 fixed missing includes in main hpp files
[SVN r74463]
2011-09-19 00:12:42 +00:00
9b16a51364 preprocessed files gen for algorithm
[SVN r74449]
2011-09-18 10:48:29 +00:00
5ee02a7546 wave preprocessor driver update
[SVN r74448]
2011-09-18 10:45:06 +00:00
223e14f702 More preprocessed files. This completes the container module.
[SVN r74446]
2011-09-18 10:03:59 +00:00
af90b6660b patch to silence clang warning
[SVN r74441]
2011-09-18 00:28:09 +00:00
b1b90af9be More preprocessed files
[SVN r74431]
2011-09-17 06:55:06 +00:00
3c92230f82 More preprocessed files
[SVN r74429]
2011-09-17 05:52:59 +00:00
0ed54e9ea3 added iterator_adapter 'Category' template parameter which defaults to Iterator_::category
[SVN r74428]
2011-09-17 03:21:13 +00:00
265bdc7342 Added default typedef mpl::false_ is_segmented;
[SVN r74427]
2011-09-17 03:14:12 +00:00
5f4d31abc7 Added preprocessed files to speed compilation
[SVN r74426]
2011-09-17 02:41:58 +00:00
f31150f58a fixed and updated copyright dates
[SVN r74415]
2011-09-16 07:00:41 +00:00
41fe830b8a Added preprocessed files to speed compilation
[SVN r74414]
2011-09-16 06:51:21 +00:00
473ef579b9 Added preprocessed files to speed compilation
[SVN r74412]
2011-09-16 06:44:55 +00:00
7365eb0a36 Added preprocessed files to speed compilation
[SVN r74411]
2011-09-16 06:22:19 +00:00
d5eaf8b496 Bumped copyright date
[SVN r74410]
2011-09-16 05:56:36 +00:00
7847f22a2c Bumped copyright date
[SVN r74409]
2011-09-16 05:55:52 +00:00
b23e05741c Added preprocessed files to speed compilation
[SVN r74408]
2011-09-16 05:47:57 +00:00
0e7a013851 Bumped copyright date
[SVN r74407]
2011-09-16 05:30:23 +00:00
86063cada9 Bumped copyright date
[SVN r74406]
2011-09-16 05:27:16 +00:00
619280939a include vectorN for only what's needed depending on FUSION_MAX_VECTOR_SIZE
[SVN r74405]
2011-09-16 05:12:58 +00:00
601415c6bb Added preprocessed files to speed compilation
[SVN r74404]
2011-09-16 05:07:53 +00:00
2a8b3f9c5b Added preprocessed files to speed compilation
[SVN r74403]
2011-09-16 04:50:19 +00:00
a21a748f24 Added preprocessed files to speed compilation
[SVN r74397]
2011-09-16 03:13:52 +00:00
5ebd31fe32 Added preprocessed files to speed compilation
[SVN r74393]
2011-09-16 01:35:29 +00:00
e7ed008af5 Added preprocessed files to speed compilation
[SVN r74392]
2011-09-16 01:34:26 +00:00
0ba9acbfa4 Replace fusion documentation with redirect.
[SVN r74332]
2011-09-10 07:42:13 +00:00
adb2d8bef0 merge [70965] [73644] [73668] [73669] [73683] [73770] [73771] [73831] [73834] [73854] [73892] [73898] [73899] [73906] [73908] [73927] [74019] [74048] [74113] from trunk to release
[SVN r74325]
2011-09-09 03:27:28 +00:00
90b15e1c9b add missing include to try to make msvc9~stlport toolset happy
[SVN r74113]
2011-08-28 22:48:40 +00:00
df6017dc1c fix use of incomplete fusion::nil as caught by clang
[SVN r74019]
2011-08-23 15:13:30 +00:00
def510808d bug fixes to segmented fusion support, more fwd headers
[SVN r73927]
2011-08-19 18:41:11 +00:00
eb903d71a7 enable segmented tests
[SVN r73908]
2011-08-19 02:04:40 +00:00
9fcb3105e5 make fold aware of segments
[SVN r73906]
2011-08-18 23:14:48 +00:00
5ff6210759 make for_each aware of segments
[SVN r73899]
2011-08-18 22:09:59 +00:00
b8bb98a36b simplify segmented_fold_until interface
[SVN r73898]
2011-08-18 21:33:39 +00:00
9dd14c435e make find and find_if algorithms segment-aware, stylistic consistency tweaks
[SVN r73892]
2011-08-18 17:12:05 +00:00
528ad04fdb baking segmented Fusion
[SVN r73854]
2011-08-17 18:53:56 +00:00
2baebc560a continue great segmented Fusion reorg
[SVN r73834]
2011-08-16 23:43:24 +00:00
2ccb8d604f progress with integrating the segmented Fusion work
[SVN r73831]
2011-08-16 23:07:51 +00:00
2212f57287 Fix Ticket #5784
[SVN r73774]
2011-08-15 10:53:13 +00:00
afbda073a3 naming tweaks
[SVN r73771]
2011-08-15 06:53:35 +00:00
9ed1f3d606 use iterator_facade to simplify implementation of segmented_iterator
[SVN r73770]
2011-08-15 06:20:24 +00:00
a339669d05 Better is_equal test
[SVN r73699]
2011-08-12 12:16:23 +00:00
1c8d339bb0 Better is_equal test
[SVN r73698]
2011-08-12 12:07:36 +00:00
adbdf8550c Back on track. The code is fine again.
[SVN r73697]
2011-08-12 11:51:57 +00:00
b3649b9343 Back on track. The code is fine again.
[SVN r73696]
2011-08-12 11:45:11 +00:00
c1dd1fa279 Back on track. The code is fine again.
[SVN r73695]
2011-08-12 11:43:24 +00:00
8b80a11877 revert to prior (again).
[SVN r73692]
2011-08-12 07:24:00 +00:00
faa5746f6d added main empty_impl template forward decl
[SVN r73689]
2011-08-12 05:18:44 +00:00
acc306d783 Added Eric's test cases for pop_back
[SVN r73687]
2011-08-12 05:15:08 +00:00
734b9222d2 revert the implementation to previous version, but changed it such that prior is not used. used advance instead which is ok for forward iterators.
[SVN r73686]
2011-08-12 05:14:06 +00:00
744dbcbbc7 added case for equal_to that returns false immediately if the tags are different in the first place
[SVN r73685]
2011-08-12 05:13:03 +00:00
48a0546eea added static sanity check
[SVN r73684]
2011-08-12 05:11:41 +00:00
f0fa80ca1a const-correctness tweaks
[SVN r73683]
2011-08-11 23:58:03 +00:00
5d07df005b fix find_s and find_if_s to return the end iterator when item not found
[SVN r73669]
2011-08-11 17:49:02 +00:00
b83a2954f5 segmented_fold_until should unpack the state's value before invoking the user's function
[SVN r73668]
2011-08-11 17:28:17 +00:00
3af35683ff QOI + small bug fixes
[SVN r73659]
2011-08-11 15:34:58 +00:00
5497ea367e QOI + small bug fixes
[SVN r73658]
2011-08-11 15:34:39 +00:00
5bca571dd1 - Made pop_back not use prior.-
Refactored pop_back_iterator into a reusable iterator_adaptor

[SVN r73657]
2011-08-11 14:49:55 +00:00
5ebfd961aa Refactored pop_back_iterator into a reusable iterator_adaptor
[SVN r73656]
2011-08-11 14:46:22 +00:00
1865ded339 Refactored pop_back_iterator into a reusable iterator_adaptor
[SVN r73655]
2011-08-11 14:45:10 +00:00
e8b0f98a55 Refactored pop_back_iterator into a reusable iterator_adaptor
[SVN r73654]
2011-08-11 14:43:59 +00:00
760c1a534c minor tweaks
[SVN r73645]
2011-08-11 08:52:10 +00:00
d9c5b32687 new cleaner(?) implementation for segmented fusion
[SVN r73644]
2011-08-11 04:14:50 +00:00
00b2cfc52e Made pop_back not use prior.
[SVN r73643]
2011-08-10 22:03:09 +00:00
21c17fda63 Added pop_back test for lists
[SVN r73642]
2011-08-10 22:01:37 +00:00
518ac25a80 merged [73583] from trunk
[SVN r73606]
2011-08-08 06:29:25 +00:00
491b6fb7d8 remove bogus compile-time asserts
[SVN r73583]
2011-08-07 00:06:32 +00:00
adc8be256f fixed wording to make it clear that I/O operators are only available for sequences in fusion's namespace
[SVN r73247]
2011-07-19 23:29:06 +00:00
efea9aec4b merge [72977] from trunk, regenerate docs
[SVN r73156]
2011-07-16 21:16:10 +00:00
f27ed26e44 make single_view random access
[SVN r72977]
2011-07-08 19:42:35 +00:00
0a54764a6a Added docs for copy
[SVN r72930]
2011-07-06 18:29:02 +00:00
f4f93005ad Added docs for copy
[SVN r72929]
2011-07-06 18:16:56 +00:00
92c2362cef Fix Ticket #4755
[SVN r72601]
2011-06-14 22:57:24 +00:00
01424b06b3 added version of fold (overload) accepting non-const State.
[SVN r71179]
2011-04-10 23:45:34 +00:00
ed4206ee1b Fixes Ticket #5426
[SVN r71026]
2011-04-06 04:55:57 +00:00
b17d6b9147 Fixes Ticket #5420
[SVN r71025]
2011-04-06 04:29:02 +00:00
b54e4b1b06 MPL bug workaround. Fixes Trac ticket: #5411
[SVN r70965]
2011-04-03 23:20:13 +00:00
b3226a5107 Applied patch #5275
[SVN r70841]
2011-04-01 23:38:39 +00:00
756af8cc4c Include <utility> instead of forward declaring std::pair
[SVN r70731]
2011-03-30 00:23:23 +00:00
c411c4b479 Spirit: merging from trunk (68457,68496,68522,68865,69218-69219,69294,69476,69546,70042-70043,70049-70050
68320,68374,68377,68386,68449,68461,68485,68487,68489,68491,68494-68495
68519-68520,68523,68536,68538-68539,68548-68549,68576,68645-68646,68657,68676
68687,68690,68707,68725,68744-68746,68852-68853,68861,68870,68904,68906-68908
68938,68989,69020,69022-69024,69091-69092,69103-69104,69114,69136,69138,69193
69202,69204,69233,69292-69293,69295,69297-69298,69323,69337,69378-69380,69405,69429,69431-69433,69444,69450
69495-69498,69501,69503,69505,69527,69599,69618,69623,69670-69671,69673,69675,69772-69774,69780
69811,69813-69814,69833,69851,70045,70211-70216,70224-70225,70483,70549-70550
Fusion: 69113,69118,69137,69583,69589,70008-70009)


[SVN r70577]
2011-03-26 17:18:36 +00:00
13aca9d862 Fusion: merging from trunk stuff needed for Spirit (69113,69118,69137,69583,69589,70008-70009)
[SVN r70575]
2011-03-26 17:10:26 +00:00
407657d56c Updateded: fixed 'requirement' errors
[SVN r70297]
2011-03-21 04:08:44 +00:00
690735de20 added test for copy
[SVN r70009]
2011-03-16 00:02:38 +00:00
80e3f4128b Added missing include
[SVN r70008]
2011-03-15 23:57:13 +00:00
7215d8835f fixed assign bug
[SVN r69589]
2011-03-05 23:37:25 +00:00
21588d6dac fixed wrong return type
[SVN r69583]
2011-03-05 14:48:47 +00:00
dcbebe60f1 Merge from trunk
[SVN r69453]
2011-03-02 00:08:13 +00:00
1efa444f24 renamed assign to copy and moved it to a new algorithm/auxiliary category
[SVN r69137]
2011-02-22 01:30:12 +00:00
dc2303d38b assign should be void
[SVN r69118]
2011-02-21 10:15:24 +00:00
7bfe445d72 new assign intrinsic
[SVN r69113]
2011-02-21 01:08:53 +00:00
0521159fdc sequence/comparison/less_equal.hpp: bug fix in code used only by Visual C++ 7.1 and 8.0
[SVN r68358]
2011-01-21 20:41:06 +00:00
577a607a14 fix for VC8 (connected to ticket 5084 -showstopper)
[SVN r68325]
2011-01-20 20:47:25 +00:00
5129f45066 fix for VC8
[SVN r68323]
2011-01-20 19:57:20 +00:00
beec2bff62 Fusion: adapt-macros: allow empty boost.pp sequences; refs #5093
[SVN r68303]
2011-01-19 17:46:05 +00:00
aa30bad7e4 fix 1.46 showstopper, fix #5084
[SVN r68264]
2011-01-19 04:28:17 +00:00
7f3cd8b46a putting is_native_fusion_sequence in is_sequence.hpp where it belongs.
[SVN r68259]
2011-01-19 00:10:13 +00:00
1da53e2c3f - hoisted enable_equality, enable_comparison and is_native_fusion_sequence to fusion::traits namespace
- added SFINAE-enable
(http://article.gmane.org/gmane.comp.parsers.spirit.devel/3902)

[SVN r68225]
2011-01-18 12:49:01 +00:00
94f5406936 Merging fixes to release; fixes #2294 fixes #4918 fixes #3645 refs #2823 refs #1427 refs #2893
[SVN r67792]
2011-01-08 18:38:08 +00:00
d4f11a0537 Applied patch; refs #2823; will merge to release once tests cycle
[SVN r67745]
2011-01-07 01:17:40 +00:00
cd811f56bc Fusion: merge from trunk
[SVN r67492]
2010-12-29 19:54:59 +00:00
c15dd57405 Fusion: mask fusion::begin/fusion::end with SFINAE, fixes #4028
[SVN r67352]
2010-12-19 18:35:52 +00:00
e8539e1165 Fusion: typo fix, fixes #4877
[SVN r67337]
2010-12-19 15:11:12 +00:00
b508b8e62c Fusion: fixed missing is_native_fusion_sequence for MSVC 7.1 and MSVC 8.0
[SVN r66477]
2010-11-10 07:59:18 +00:00
6eba238b69 Fusion: removed fusion::sequence_root; Fixes #2335
[SVN r66411]
2010-11-06 12:21:18 +00:00
09bd088660 Fusion: functional includes fixes; fixes #4729
[SVN r65974]
2010-10-15 11:40:37 +00:00
7aa4e2cbda Fusion: merge from trunk - fixed minor doc typos
[SVN r65895]
2010-10-10 20:57:01 +00:00
8abe272391 Fusion: fixed minor doc typos
[SVN r65894]
2010-10-10 20:23:28 +00:00
9792f67700 Fusion: merge from trunk
[SVN r65821]
2010-10-07 22:58:44 +00:00
088b8a0201 Fusion: ADAPT_xxxADTxxx; documentation&new testcase
[SVN r65816]
2010-10-07 20:38:54 +00:00
b8784f6bbc Fusion: fixed yet another typo
[SVN r65758]
2010-10-04 21:34:44 +00:00
569e23c71c Fusion: BOOST_FUSION_ADAPT_ADT documentation (2)
[SVN r65757]
2010-10-04 21:16:42 +00:00
b761e0e0c0 Fusion: BOOST_FUSION_ADAPT_ADT documentation
[SVN r65756]
2010-10-04 20:50:31 +00:00
a3427ea75b Fusion: merge from trunk
[SVN r65735]
2010-10-03 09:46:00 +00:00
21d676dd87 Fusion: added adt_attribute_proxy-getter
[SVN r65728]
2010-10-02 18:39:23 +00:00
f723f870c7 Fusion/Spirit: adt_attribute_proxy refactorization
[SVN r65445]
2010-09-17 20:38:23 +00:00
5adcb5b4d2 Fusion: BOOST_FUSION_ADAPT_xxxCLASSxxx -> BOOST_FUSION_ADAPT_xxxADTxxx
[SVN r65439]
2010-09-16 16:33:25 +00:00
e5dd49bc15 Fusion: documentation fixes
[SVN r65060]
2010-08-27 20:36:00 +00:00
a18ab9db86 lvalue fold states. Fixes #4582
[SVN r64947]
2010-08-22 13:16:49 +00:00
084b3028d8 fix for #4580
[SVN r64946]
2010-08-22 11:29:45 +00:00
aa1bcfaa9a refactored extension::struct_member to extension::access::struct_member
[SVN r64490]
2010-07-31 00:17:34 +00:00
134fbf9600 fix for adapted classes' category
[SVN r63805]
2010-07-10 10:06:33 +00:00
c879ab02c3 fix for adapted classes' category
[SVN r63804]
2010-07-10 10:01:57 +00:00
199d8b548f merged fusion from the trunk (3)
[SVN r63757]
2010-07-08 18:32:12 +00:00
237165e1e9 added the new folds to the changelist
[SVN r63752]
2010-07-08 17:25:24 +00:00
0f4ac2e9e3 Merge rebuilt fusion documentation with missing file.
[SVN r63737]
2010-07-08 07:50:58 +00:00
05edb33019 Rebuild fusion docs - with missing file this time.
[SVN r63731]
2010-07-08 07:10:41 +00:00
32adb57290 Merge rebuilt fusion documentation.
[SVN r63631]
2010-07-04 20:19:01 +00:00
880f7ed33e Rebuild fusion documentation.
[SVN r63626]
2010-07-04 19:20:50 +00:00
02b2a88bea merged fusion from the trunk (2)
[SVN r63562]
2010-07-03 20:31:16 +00:00
a1af4051cd added missing doc files
[SVN r63561]
2010-07-03 20:28:03 +00:00
1572e0e9c3 merged fusion from the trunk
[SVN r63560]
2010-07-03 20:10:58 +00:00
649770fdcd merged revision 62675
[SVN r63528]
2010-07-02 18:53:17 +00:00
38319d25cc fixed c/p error
[SVN r63440]
2010-06-29 19:55:22 +00:00
6f0af5db0a Merge documentation fixes.
* Use `doc/src/*.css` instead of `doc/html/*.css`.
* Remove wiki and people directories.
* Some documentation fixes.
* Left out `minimal.css` changes and boostbook changes because of clashes.


[SVN r63347]
2010-06-26 12:30:09 +00:00
4b1e5607e1 Fix a copy/paste error.
[SVN r63220]
2010-06-22 04:20:26 +00:00
c57b658e79 Document repetitive_view. Fixes #1864.
[SVN r63219]
2010-06-22 04:17:12 +00:00
f26c90729a Update various libraries' documentation build.
Mostly to use the images and css files under doc/src instead of
doc/html, usually be deleting the settings in order to use the defaults.
Also add 'boost.root' to some builds in order to fix links which rely on
it.

[SVN r63146]
2010-06-20 18:00:48 +00:00
758178a2a8 added reverse_fold/iter_fold/reverse_iter_fold (2) (fixes #1623)
[SVN r63083]
2010-06-18 17:23:20 +00:00
ea89db72cb added reverse_fold/iter_fold/reverse_iter_fold (1)
[SVN r63066]
2010-06-17 21:21:37 +00:00
7d14098b21 Explicitly cast array::static_size to an int. Fixes #2761
[SVN r62893]
2010-06-13 03:06:14 +00:00
378858f270 Fix headers for set_fwd and map_fwd. Fixes #3237
[SVN r62891]
2010-06-13 01:45:12 +00:00
9b7b9db979 Translate fusion iterator categories to MPL iteraotr categories for fusion_iterator. Fixes #3204.
[SVN r62889]
2010-06-13 01:22:41 +00:00
c9a5364472 Clean up GCC warnings. Fixes #3033.
[SVN r62869]
2010-06-12 17:59:10 +00:00
7c986ebd61 Clean up MSVC build. Fixes #1619. Fixes #3074.
[SVN r62854]
2010-06-12 15:58:31 +00:00
d5f6d5eafe Fix #include guard of boost/fusion/include/has_key.hpp. Fixes #4070
[SVN r62828]
2010-06-12 00:52:14 +00:00
d250c447b2 fixed conflict detected by g++4.x between fusion::at and mpl::at
[SVN r62675]
2010-06-09 17:39:26 +00:00
c02a3ba001 documentation update - fixes #4281
[SVN r62398]
2010-06-03 08:29:23 +00:00
11228c420f fusion::tag_of/fusion::detail::is_specialized should not complain for non-adapted std::pair/boost::array/...
[SVN r61836]
2010-05-07 15:02:22 +00:00
6465c3b3ea adapted proxy types are views now
[SVN r61833]
2010-05-07 13:37:34 +00:00
909f1bba8f added /fusion/view/single_view.hpp and /fusion/view/nview.hpp to /fusion/view.hpp
[SVN r61761]
2010-05-04 16:23:01 +00:00
95555f3f20 removes outdated and defunct files
[SVN r61599]
2010-04-26 23:34:55 +00:00
837d5b0604 fix #1614
[SVN r61488]
2010-04-22 13:15:01 +00:00
0f33972fe9 fix #1614
[SVN r61487]
2010-04-22 13:14:47 +00:00
a0733ce5ee merge from trunk
[SVN r61204]
2010-04-11 15:41:36 +00:00
8d5aefc7de documentation update
[SVN r61202]
2010-04-11 15:01:17 +00:00
dc8225a7aa merge from trunk
[SVN r61189]
2010-04-11 00:31:21 +00:00
2f8b22dd93 documentation update
[SVN r61187]
2010-04-10 18:55:44 +00:00
83db52797b ADAPT_STRUCT_DEFINE_PROXY_TYPE refactoring
[SVN r61178]
2010-04-10 14:35:13 +00:00
994b37e4d5 merge from trunk
[SVN r61043]
2010-04-04 14:43:54 +00:00
073ce9e4a3 added intrusive struct generating macros
[SVN r61018]
2010-04-03 13:34:20 +00:00
d8a40f48a6 Fusion: applied workaround for broken VC10
[SVN r60263]
2010-03-07 02:19:16 +00:00
f8c6e5efb6 Fusion: added missing #include's
[SVN r60262]
2010-03-07 02:15:59 +00:00
e67765747d better adapt structs/classes implementation
[SVN r59913]
2010-02-25 20:10:37 +00:00
f84bc30bd3 adapt template classes/structs
[SVN r59846]
2010-02-22 22:55:54 +00:00
bb88841f47 adapt plain old array types (3)
[SVN r59578]
2010-02-07 19:12:26 +00:00
47f535df5b adapt plain old array types (2)
[SVN r59577]
2010-02-07 18:48:09 +00:00
5eb9c03cd2 adapt plain old array types (1)
[SVN r59576]
2010-02-07 18:22:06 +00:00
b86d7dbe80 Fusion: fixed ambiguities in tests on VC10
[SVN r59347]
2010-01-29 16:02:14 +00:00
83ed7ffada Fusion: minor fix for adapt_class_named
[SVN r59346]
2010-01-29 15:45:50 +00:00
4910f26ce9 Fusion: minor fix for adapt_class_named
[SVN r59345]
2010-01-29 15:45:24 +00:00
c24441c83d Fusion: added tests for adapt_class_named
[SVN r59341]
2010-01-29 15:04:57 +00:00
6647f0c8a4 Fusion: fixed adapt_class to be usable with Spirit, added adapt_class_named
[SVN r59340]
2010-01-29 15:03:35 +00:00
0d5ff2fc01 Fusion: added tests for adapt_struct_named
[SVN r59339]
2010-01-29 13:49:38 +00:00
95ccc6f48f Fusion: added docs for BOOST_FUSION_ADAPTED_STRUCT_NAMED
[SVN r59338]
2010-01-29 03:03:31 +00:00
3873f007e8 Fusion: more work on adapt_struct_named
[SVN r59337]
2010-01-29 01:58:50 +00:00
e7c00c1843 Fusion adding ADAPT_NAMED_STRUCT
[SVN r59335]
2010-01-28 21:27:32 +00:00
dae19f1781 Fusion: adding overload for const parameter types
[SVN r59276]
2010-01-27 16:25:41 +00:00
3f4d3eb887 Copy generated fusion documentation from trunk.
[SVN r59021]
2010-01-15 06:35:28 +00:00
cda74605fc fusion: merge of associative iterators/views and the new fold interface
[SVN r58618]
2010-01-01 22:00:21 +00:00
f7fd836354 corrected category_of documentation (2)
[SVN r58568]
2009-12-29 18:29:59 +00:00
b1b171f130 corrected category_of documentation
[SVN r58559]
2009-12-29 14:10:17 +00:00
d366a4f0e2 updated changelog
[SVN r58558]
2009-12-29 13:44:01 +00:00
514d48903b associative forward iterators in example and docs
[SVN r58549]
2009-12-28 17:45:42 +00:00
f0cd405f04 mpl::sequence_tag specialization for adapted types
[SVN r58396]
2009-12-15 13:30:02 +00:00
2587757d47 corrected reverse_view
[SVN r58299]
2009-12-11 21:01:22 +00:00
f1da55c1e9 avoid iterator invalidation in segmented_range, fixes #3583
[SVN r57622]
2009-11-13 02:52:34 +00:00
b605617c4f Fusion: merged fixes for MSVC warnings from trunk
[SVN r57533]
2009-11-10 02:37:19 +00:00
03290abb85 Fusion: silenced a couple of MSVC warnings created during Spirit test runs
[SVN r57502]
2009-11-09 03:57:40 +00:00
65895017bd associative_sequence_tag -> associative_tag
[SVN r57337]
2009-11-03 17:35:33 +00:00
60fabbdf9a Fusion: adding a missing 'const'
[SVN r57248]
2009-10-30 15:14:50 +00:00
dab67207cf associative iterators & views (Fixes #3473)
[SVN r57242]
2009-10-30 00:19:19 +00:00
9b26b4a0f7 associative iterators & views
[SVN r57156]
2009-10-25 22:59:54 +00:00
35e469e2d5 fix for #2355: discrepancy between std::accumulate and fusion::accumulate
[SVN r57125]
2009-10-24 10:59:01 +00:00
43f861ca87 rm cmake from trunk. I'm not entirely sure this is necessary to satisfy the inspect script, but I'm not taking any chances, and it is easy to put back
[SVN r56942]
2009-10-17 02:07:38 +00:00
b22e2b64da rm cmake from the release branch before it goes out broken. Policy dictates that you never commit to release, you commit to trunk and merge to release.
[SVN r56941]
2009-10-17 01:10:45 +00:00
46fc256c2f Sync from trunk (except adapt class)
[SVN r56714]
2009-10-11 16:12:54 +00:00
7615b492af Sync from trunk (except adapt class)
[SVN r56713]
2009-10-11 16:08:54 +00:00
d978cec6b6 Fix default construction of vector
[SVN r56709]
2009-10-11 04:00:00 +00:00
e26d26d511 Fusion: added size_impl for nview
[SVN r56610]
2009-10-05 22:30:23 +00:00
9ebe273fb3 Fusion: fixing nview tests
[SVN r56609]
2009-10-05 22:29:10 +00:00
a110ea9304 Fixing mismatch of default parameter values
[SVN r56607]
2009-10-05 22:00:09 +00:00
959b0b0839 Fusion: fixing mismatch in default parameter to nview
[SVN r56604]
2009-10-05 21:36:55 +00:00
9a1bc7d677 BOOST_FUSION_ADAPT_CLASS
[SVN r56576]
2009-10-04 16:59:50 +00:00
178973a05c BOOST_FUSION_ADAPT_CLASS
[SVN r56575]
2009-10-04 16:59:37 +00:00
e0a17b552c Fusion: merged nview from trunk
[SVN r56490]
2009-09-30 02:33:30 +00:00
7b89755a67 Fusion: fixed a couple of typos in docs
[SVN r56472]
2009-09-29 14:48:36 +00:00
fdb399e022 Fusion: fixing regression tests
[SVN r56435]
2009-09-27 16:36:53 +00:00
cb5b63fa93 Fusion: fixed another const correctness problem
[SVN r56383]
2009-09-25 17:24:55 +00:00
8ce4280e27 Fusion: doc fix
[SVN r56382]
2009-09-25 14:00:55 +00:00
37f57fbf7f Fusion: resolved const correctness issue
[SVN r56381]
2009-09-25 13:57:30 +00:00
10c0665ffa Fusion: added nview and friends, docs and tests
[SVN r56377]
2009-09-25 00:21:53 +00:00
43645b3764 Fusion: added nview and friends
[SVN r56376]
2009-09-25 00:20:03 +00:00
2e805be6df merge from trunk
[SVN r56179]
2009-09-14 07:47:53 +00:00
2f8b91828b merge from trunk
[SVN r56178]
2009-09-14 07:40:39 +00:00
b16d42a31b reduce fusion, proto and xpressive warnings under msvc /Za switch
[SVN r55838]
2009-08-28 16:45:21 +00:00
0dd1f341c8 Fix PDF image paths.
[SVN r55759]
2009-08-24 10:32:39 +00:00
ea5ea7f001 Fix up logic and date_time Jamfiles so they build needed dependencies.
Fix PDF image paths in fusion Jamfile.v2.
Add fusion to the PDF build.

[SVN r55757]
2009-08-24 10:31:43 +00:00
564280e622 Make the unrolled implementation of all work for multiples of four. Fixes #2599.
[SVN r55686]
2009-08-20 14:01:39 +00:00
2e33d288b1 Copyrights on CMakeLists.txt to keep them from clogging up the inspect
reports.  This is essentially the same commit as r55095 on the release
branch.



[SVN r55159]
2009-07-26 00:49:56 +00:00
df633002dd Add basic copyright/license to keep cmake out of the inspection report
[SVN r55095]
2009-07-22 21:51:01 +00:00
c0eebc8121 Fix #1601
[SVN r54850]
2009-07-10 00:50:05 +00:00
14b27978e3 Fix #1601
[SVN r54849]
2009-07-10 00:49:51 +00:00
04cf9c863b typo fix
[SVN r54325]
2009-06-25 03:07:23 +00:00
fb7671141a fix ticket#1894
[SVN r54047]
2009-06-18 03:23:51 +00:00
08045fc46e Fix ticket #2158
[SVN r53985]
2009-06-17 02:11:43 +00:00
cb0a2c3c2e patched ticket #4512
[SVN r53956]
2009-06-16 02:23:44 +00:00
253c763b45 Fix Ticket #1614:
[SVN r53917]
2009-06-15 03:30:35 +00:00
3ed2803482 Fix Ticket #1614:
[SVN r53916]
2009-06-15 02:07:19 +00:00
63ce990a8c fix trac issue #1608
[SVN r53915]
2009-06-15 01:54:01 +00:00
363ff5750f fix trac issue #1608
[SVN r53914]
2009-06-15 01:53:43 +00:00
8f34038ddd introduces test case for unfusing adapter
[SVN r53906]
2009-06-14 18:31:09 +00:00
c88e8803fb introduces test for unfusing adapter
[SVN r53905]
2009-06-14 18:30:02 +00:00
fb3de90679 introduces unfused adapter
[SVN r53903]
2009-06-14 11:09:03 +00:00
916077ce6b update for trac #1893
[SVN r53856]
2009-06-13 06:29:32 +00:00
dace0940b7 fix ticket #1529
[SVN r53765]
2009-06-09 04:02:33 +00:00
d726756148 Fusion: merging from trunk
[SVN r53596]
2009-06-03 12:44:26 +00:00
efcab8aae4 Merged revisions 53158,53182,53334,53337,53419,53421,53521,53566-53568,53578,53590 via svnmerge from
https://svn.boost.org/svn/boost/trunk



[SVN r53591]
2009-06-03 04:32:30 +00:00
6447c5371e reduce number of template instantiations
[SVN r53566]
2009-06-02 05:46:21 +00:00
f0b6c8b1e2 Fusion: added explicit disambiguation for fusion::at
[SVN r53029]
2009-05-15 15:28:34 +00:00
e1ac68f526 Trying to fix ambiguities of operator<<() for unused_type.
[SVN r52511]
2009-04-20 14:57:57 +00:00
9acd9b2feb added default implementation for iterator_facade
[SVN r51864]
2009-03-20 09:45:36 +00:00
c81456f35e Protected unused_type by an ADL barrier
[SVN r51654]
2009-03-09 01:17:20 +00:00
08a038ad51 Fix: remove non-existent test
[SVN r51393]
2009-02-22 16:33:27 +00:00
b7e3828810 adjusts to changes in functional module, also resolves compile problems
[SVN r51383]
2009-02-22 06:36:52 +00:00
534809fbb7 updates functional module: only two unfused variants, now
[SVN r51382]
2009-02-22 06:35:35 +00:00
aaf89a67a6 updates functional module: only two unfused variants, now
[SVN r51381]
2009-02-22 06:27:12 +00:00
2fdfd41b17 updates functional module: only two unfused variants, now
[SVN r51380]
2009-02-22 06:24:38 +00:00
a26354b70e updates functional module: only two unfused variants, now
[SVN r51379]
2009-02-22 06:23:56 +00:00
064dbedaa5 #define to allow testing if unused_type has IO
[SVN r51286]
2009-02-17 11:18:20 +00:00
35149161aa use vectorN instead of vector for shorter names
[SVN r51285]
2009-02-17 10:37:31 +00:00
010c94ba87 fix wrong include
[SVN r50937]
2009-02-01 00:00:58 +00:00
5dff610007 merge of cmake build files from trunk per beman
[SVN r50756]
2009-01-24 18:57:20 +00:00
1c8e2ccfe4 added streaming for unused_type
[SVN r50168]
2008-12-06 23:35:05 +00:00
fad40f6c9d changed the result of as_vector to return the numbered forms (i.e vectorN)
[SVN r49778]
2008-11-16 01:00:37 +00:00
7c8f9e3b6d changed as_vector to return the numbered forms (i.e. vectorN)
[SVN r49777]
2008-11-16 00:59:42 +00:00
6ff5a74d9d updated make_vector to return numered forms instead
[SVN r49768]
2008-11-15 11:08:49 +00:00
b543bd13e7 minor doc typo
[SVN r49767]
2008-11-15 11:07:56 +00:00
82fd215b99 Updating dependency information for modularized libraries.
[SVN r49628]
2008-11-07 17:05:27 +00:00
e0cc53e8a9 Continuing merge of CMake build system files into trunk with the encouragement of Doug Gregor
[SVN r49510]
2008-11-01 13:15:41 +00:00
e2d23b8a63 bugfix to fold test, and new transform test
[SVN r49470]
2008-10-27 22:13:20 +00:00
d3f057e88c added fold test and simplified repetition in the Makefile
[SVN r49456]
2008-10-26 14:39:59 +00:00
38147bb4d6 Adding simple compile time tests
[SVN r49409]
2008-10-20 21:36:04 +00:00
d004046aa5 Merge from Trunk
[SVN r49252]
2008-10-10 15:05:47 +00:00
a046e43990 Merge from Trunk
[SVN r49251]
2008-10-10 14:49:19 +00:00
575ce8ca26 Fix cyclic dependencies between Boost.fusion.tuples and TR1.
Fixes #2261.

[SVN r48820]
2008-09-17 17:20:22 +00:00
b1ebdd60a6 Merged revisions 48769 via svnmerge from
https://svn.boost.org/svn/boost/trunk

........
  r48769 | eric_niebler | 2008-09-13 21:46:32 -0700 (Sat, 13 Sep 2008) | 1 line
  
  attempt to work around early instantiation problem on edg-based compilers
........


[SVN r48817]
2008-09-17 15:54:23 +00:00
d8d881ac6f attempt to work around early instantiation problem on edg-based compilers
[SVN r48769]
2008-09-14 04:46:32 +00:00
399b268bf1 fix #1600 (duplicate include guard)
[SVN r48600]
2008-09-05 02:39:34 +00:00
24f0323699 added missing include
[SVN r48369]
2008-08-25 07:14:20 +00:00
a8fe0fa44a more conformance tweaks to std tr1
[SVN r48258]
2008-08-20 12:56:53 +00:00
814c40a093 fixed typo
[SVN r48256]
2008-08-20 12:36:13 +00:00
7c74332487 conform to TR1 to the letter
[SVN r48244]
2008-08-20 08:20:40 +00:00
e165418461 conform to TR1 to the letter
[SVN r48243]
2008-08-20 08:20:19 +00:00
c51fc2ebee fixed non-ascii chars
[SVN r47676]
2008-07-22 09:07:07 +00:00
4a2214739c fixed non-ascii chars
[SVN r47675]
2008-07-22 09:06:54 +00:00
0b58f052b3 doc updates (mini tweaks)
[SVN r47668]
2008-07-22 02:06:42 +00:00
ef1e821173 added info on how to map to and from MPL
[SVN r47647]
2008-07-21 07:25:52 +00:00
af0e42f13e list-at optimization
[SVN r47643]
2008-07-20 23:14:15 +00:00
36736edec5 pair doc fix
[SVN r47528]
2008-07-17 23:59:40 +00:00
8506cd8be6 pair doc fix
[SVN r47527]
2008-07-17 23:59:22 +00:00
57725cb393 merge from trunk
[SVN r47205]
2008-07-08 02:43:21 +00:00
099deb4385 merge from trunk
[SVN r47204]
2008-07-08 02:39:55 +00:00
d150ba8498 Fixed non-ascii chars
[SVN r46898]
2008-06-30 12:06:07 +00:00
df2abdab6b Fixed non-ascii chars
[SVN r46897]
2008-06-30 12:04:15 +00:00
780b8bc1b0 With his kind permission, change Jaakko "Järvi" to "Jarvi"
[SVN r46809]
2008-06-28 13:57:20 +00:00
8b749bef46 With his kind permission, change Jaakko "Järvi" to "Jarvi"
[SVN r46808]
2008-06-28 13:45:21 +00:00
91ea13a593 Fusion: Fixed a VC level 4 warning
[SVN r44794]
2008-04-27 01:04:25 +00:00
6d462cbd63 Changed macro BOOST_PARTIAL_SPECIALIZATION_EXPLICIT_ARGS to BOOST_NO_PARTIAL_SPECIALIZATION_DEFAULT_ARGS.
Changed <utility> to <boost/config/no_tr1/utility.hpp> in order to prevent cyclic dependencies between Fusion Tuples and TR1.

[SVN r44692]
2008-04-21 12:06:02 +00:00
813930aee6 Rebuild a lot of documentation.
[SVN r43650]
2008-03-16 11:38:32 +00:00
9e8d8b1871 Merged revisions 43206,43208-43213 via svnmerge from
https://svn.boost.org/svn/boost/trunk

........
  r43206 | danieljames | 2008-02-10 09:55:03 +0000 (Sun, 10 Feb 2008) | 1 line
  
  Fix some broken links.
........
  r43209 | danieljames | 2008-02-10 14:56:22 +0000 (Sun, 10 Feb 2008) | 1 line
  
  Link to people pages on the website, as they've been removed from the download.
........
  r43210 | danieljames | 2008-02-10 15:02:17 +0000 (Sun, 10 Feb 2008) | 1 line
  
  Point links to the pages that used to be in 'more' to the site.
........
  r43212 | danieljames | 2008-02-10 16:10:16 +0000 (Sun, 10 Feb 2008) | 1 line
  
  Fix links on the home page as well.
........
  r43213 | danieljames | 2008-02-10 16:21:22 +0000 (Sun, 10 Feb 2008) | 1 line
  
  Generated documentation which is no longer generated.
........


[SVN r43214]
2008-02-10 16:39:38 +00:00
9a622b6904 Generated documentation which is no longer generated.
[SVN r43213]
2008-02-10 16:21:22 +00:00
4a29dd2a7c merge from trunk
[SVN r42226]
2007-12-21 03:13:31 +00:00
7bd2fd716d merge from trunk
[SVN r42225]
2007-12-21 02:45:20 +00:00
f199472458 Removing fusion variant adapter
[SVN r42224]
2007-12-20 23:28:26 +00:00
2c1a03f785 Removing fusion variant adapter
[SVN r42223]
2007-12-20 23:24:28 +00:00
bcbd2ff112 tweakbug fix for end_impl (tweak).
[SVN r42167]
2007-12-19 10:42:04 +00:00
67279d5c3d bug fix for end_impl. (test)
[SVN r42165]
2007-12-19 10:33:39 +00:00
61bf0151da bug fix for end_impl.
[SVN r42164]
2007-12-19 10:33:14 +00:00
e9fd448376 fixed documentation bug
[SVN r42116]
2007-12-17 09:27:42 +00:00
300f35fadd Strips top-level cv-qualifiers off non-reference types, now.
[SVN r41642]
2007-12-03 13:25:26 +00:00
6168061f97 remove old unused file
[SVN r41519]
2007-12-01 01:11:44 +00:00
9a1f176df2 fixed link
[SVN r41489]
2007-11-30 10:07:41 +00:00
d57e8cfe9e Full merge from trunk at revision 41356 of entire boost-root tree.
[SVN r41370]
2007-11-25 18:38:02 +00:00
ed9cb87ac3 Full merge from trunk at revision 41356 of entire boost-root tree.
[SVN r41369]
2007-11-25 18:07:19 +00:00
6e7e8a12eb bug fix
[SVN r41299]
2007-11-22 08:39:46 +00:00
4919faec58 removing failing test on EDG compilers
[SVN r41117]
2007-11-15 21:15:47 +00:00
d785c34d56 fix support for segmented iteration
[SVN r41093]
2007-11-14 16:36:15 +00:00
5359a24800 refresh docs
[SVN r41080]
2007-11-14 10:17:09 +00:00
d7c204356f removes superfluous remove_reference in result computation, as reported by Eric Niebler
[SVN r41008]
2007-11-11 17:56:21 +00:00
b241cdf25d fix mismatch include guard
[SVN r40975]
2007-11-09 22:38:18 +00:00
ac449e933d added copyright and license info for each page.
[SVN r40873]
2007-11-07 03:46:23 +00:00
9f2f31c8ec added copyright and license info for each page.
[SVN r40868]
2007-11-07 03:25:59 +00:00
2016e8e53b added license info in copyright notice at the footer
[SVN r40866]
2007-11-07 03:06:23 +00:00
e10f3e17b3 added copyright and license info for each page.
[SVN r40863]
2007-11-07 02:12:28 +00:00
0acc783f19 Added a quick reference to the sequence and iterator facade example
[SVN r40856]
2007-11-06 21:53:41 +00:00
353bf4bc09 Adding an example of using sequence facade and iterator facade.
[SVN r40853]
2007-11-06 20:55:58 +00:00
73f4f6667c todo update
[SVN r40833]
2007-11-06 12:17:26 +00:00
a326739705 Regenerating/reorganizing docs
[SVN r40832]
2007-11-06 12:13:52 +00:00
a8ac3c3413 doc updates + some more header tweaks
[SVN r40831]
2007-11-06 12:05:12 +00:00
41c46501db doc updates + some more header tweaks
[SVN r40830]
2007-11-06 11:58:37 +00:00
58b2bccbe4 Regenerating/reorganizing docs
[SVN r40828]
2007-11-06 11:40:27 +00:00
0baf64588c doc updates to reflect structure changes
[SVN r40827]
2007-11-06 10:09:38 +00:00
c9ee80e47a fixed spelling mistake in documentation
[SVN r40817]
2007-11-05 22:24:53 +00:00
1c5bc499a7 Workarounds for Fusion on IBM xlc
[SVN r40766]
2007-11-05 02:10:42 +00:00
b9ab685b44 Basic sequence and iterator fascade docs
[SVN r40737]
2007-11-04 15:26:51 +00:00
dde6fe6f40 Documentation for the struct extension macros
[SVN r40534]
2007-10-28 17:40:45 +00:00
78a8321eab fixing missing traversal category on binary transform view, by reusing zip_view algorithm
[SVN r40516]
2007-10-27 22:18:13 +00:00
5bf6dfa508 fixing performance tests, mainly result of issues, and arity issues with unfused typed
[SVN r40515]
2007-10-27 22:16:35 +00:00
17e42e5650 reverts clobbered changes before merge
[SVN r40479]
2007-10-26 12:16:37 +00:00
56ad076390 fix remaining includes
[SVN r40442]
2007-10-24 23:29:54 +00:00
2b9389ef5a merging tobias changes
[SVN r40397]
2007-10-24 04:58:50 +00:00
3307c806c8 Fusion 2.1 one more time with care
[SVN r40392]
2007-10-24 02:36:29 +00:00
7c85a51d48 Fusion 2.1 one more time with care
[SVN r40390]
2007-10-24 02:32:28 +00:00
d10270f755 remove superfluous include
[SVN r40383]
2007-10-23 23:29:08 +00:00
75fddd89a2 remove superfluous include
[SVN r40359]
2007-10-23 13:39:15 +00:00
839b519852 adjusts test: deduce_sequence removes top-level cv-qualifiers from element types, now
[SVN r40355]
2007-10-23 13:26:56 +00:00
fff2c2ff34 removes dependencies to MPL intrinsics (removes top-level cv-qualifiers from element types, now)
[SVN r40354]
2007-10-23 13:25:57 +00:00
ea0da68ccd missing copyright
[SVN r40257]
2007-10-21 05:51:31 +00:00
db4f2ba847 more flat includes
[SVN r40254]
2007-10-21 05:41:23 +00:00
6c40cc9307 more flat includes
[SVN r40253]
2007-10-21 05:39:33 +00:00
4f92073a2e more flat includes
[SVN r40252]
2007-10-21 05:23:50 +00:00
02c08d10c9 updates for fusion 2.1
[SVN r40251]
2007-10-21 05:13:03 +00:00
4be5caeff9 more flat includes
[SVN r40250]
2007-10-21 04:25:02 +00:00
cb3bd83e2a more includes
[SVN r40245]
2007-10-21 03:01:13 +00:00
32f1c58ce7 branch for creating branch for fusion 2.1
[SVN r40237]
2007-10-21 00:52:09 +00:00
7a6e82b7cf Removed file/folder
[SVN r40234]
2007-10-21 00:47:59 +00:00
fc57a566cb creating branch for fusion 2.1
[SVN r40232]
2007-10-20 23:59:59 +00:00
c3fec7efe6 creating branch for fusion 2.1
[SVN r40231]
2007-10-20 23:52:36 +00:00
13b01b0bfe Removed file/folder
[SVN r40230]
2007-10-20 23:49:46 +00:00
66cc9bbc28 made a copy
[SVN r40229]
2007-10-20 23:48:12 +00:00
5f024c18ca Created folder remotely
[SVN r40225]
2007-10-20 23:43:20 +00:00
361635c5ab reverting to 2.0
[SVN r40220]
2007-10-20 22:33:52 +00:00
fc1df001c6 reverting to 2.0
[SVN r40219]
2007-10-20 22:21:43 +00:00
c35180f4f9 phase4: refactoring for v2.1
[SVN r40213]
2007-10-20 13:13:58 +00:00
e894481f5b phase4: refactoring for v2.1
[SVN r40212]
2007-10-20 13:13:46 +00:00
16bcb17c06 phase3: refactoring for v2.1
[SVN r40211]
2007-10-20 11:50:27 +00:00
d0d540064d phase3: refactoring for v2.1
[SVN r40210]
2007-10-20 11:49:17 +00:00
9243ee2450 phase2: refactoring for v2.1
[SVN r40209]
2007-10-20 11:31:03 +00:00
a77599ed49 refactoring for v2.1
[SVN r40208]
2007-10-20 11:01:50 +00:00
0f11e531ac fix for incomplete type is not allowed when tuple is forward declared. fixed the other as_xxx files as well.
[SVN r39724]
2007-10-06 14:10:30 +00:00
3de9048e8a adds concept examples
[SVN r39474]
2007-09-22 11:09:35 +00:00
dbd122cee3 bugfix tuples::null_type and tuples::tuple<> iterators not comparing ok.
[SVN r39469]
2007-09-22 01:08:51 +00:00
1f2087092f Doc updates
[SVN r39468]
2007-09-22 01:05:29 +00:00
6344096709 fixing result of related fusion docs issues for fold, accumulate, and transform view/alg
[SVN r39448]
2007-09-21 15:44:57 +00:00
6b56ded55a bugfix tuples::null_type and tuples::tuple<> iterators not comparing ok.
[SVN r39359]
2007-09-18 00:18:56 +00:00
f8e8b4bbf5 push/pop pragma warning
[SVN r38559]
2007-08-10 01:45:05 +00:00
e90a217a2c removing files added by the cvs import incorrectly
[SVN r38407]
2007-08-02 20:34:13 +00:00
2536037ff7 removing another dead file from the cvs import
[SVN r38406]
2007-08-02 20:24:47 +00:00
fac8e082b8 removing dead file recovered by cvs transfer
[SVN r38405]
2007-08-02 20:10:01 +00:00
0bb0d5798b accomodate recent fusion result_of changes
[SVN r38275]
2007-07-22 16:38:18 +00:00
887906aa69 changes docs to reflect changed semantics of unfused_type
(operator() overloads for only onw arity now)


[SVN r38269]
2007-07-22 08:35:29 +00:00
f6b7afa277 changes semantics to contain only operator() overloads for one arity
[SVN r38268]
2007-07-22 08:30:58 +00:00
1484ae8e06 adjusts test to semantic changes:
unfused_typed only contains operator() overloads for one arity now


[SVN r38267]
2007-07-22 08:29:54 +00:00
367a572f54 qualifies lookup of type traits names
[SVN r38256]
2007-07-17 21:44:36 +00:00
97a49614f9 removes unnecessary #includeS
[SVN r38255]
2007-07-17 21:43:14 +00:00
50bd63adcd fixes const-correctness
[SVN r38222]
2007-07-15 16:25:11 +00:00
76bb8db5b7 code tidying (insignificant changes)
[SVN r38220]
2007-07-14 20:22:30 +00:00
50d52fa1c4 code tidying
[SVN r38219]
2007-07-14 20:21:54 +00:00
aebd8a01cb removes unnecessary #includeS
[SVN r38218]
2007-07-14 20:20:28 +00:00
a83c9b89a3 removes unnecessary #include
[SVN r38217]
2007-07-14 20:17:38 +00:00
1ed9b6204b fixes compilation problems with msvc
[SVN r38212]
2007-07-13 21:36:02 +00:00
b4fe17385c silences msvc warning when used with infinite sequences
[SVN r38211]
2007-07-13 21:27:35 +00:00
9df373af5f revises function object concepts and functional module documenation to reflect
boost::result_of-based result computation


[SVN r38209]
2007-07-13 19:25:34 +00:00
f05493abf0 fixes result computation problem
[SVN r38208]
2007-07-13 18:47:02 +00:00
8525c2b0b5 changes result computation to use boost::result_of-based scheme
[SVN r38207]
2007-07-13 18:46:28 +00:00
042735fd06 ported to boost::result_of-based result computation scheme
[SVN r38206]
2007-07-13 18:31:16 +00:00
f119120d24 corrects missing references in boost::result_of signature
[SVN r38205]
2007-07-13 16:37:22 +00:00
c57e840377 adds const correctness, simplifies code, fixes nullary member function invocation
[SVN r38204]
2007-07-13 16:29:45 +00:00
685d26c847 adds const correctness, disables variadic tests, for now
[SVN r38203]
2007-07-13 16:27:55 +00:00
909825a34f simplifies code (minor changes)
[SVN r38202]
2007-07-13 16:26:50 +00:00
f598633cd0 adds const-correctness, simplification
[SVN r38201]
2007-07-13 15:12:14 +00:00
897a312766 adds const correctness
[SVN r38200]
2007-07-13 15:11:20 +00:00
8ff2dca34a adds missing include
[SVN r38199]
2007-07-13 14:20:38 +00:00
e2015823f6 makes unfused_* work exclusively through boost::result_of
[SVN r38198]
2007-07-13 14:09:25 +00:00
7a1017dce3 makes unfused_* work through boost::result_of only
[SVN r38197]
2007-07-13 14:06:50 +00:00
f6184f5f29 fixes bad parameter lists for template friends
[SVN r38195]
2007-07-12 15:57:18 +00:00
8eda5d32ca completes boost::result_of-based result type computation
[SVN r38194]
2007-07-12 09:08:46 +00:00
046d853d63 fixing issues with fusion zip_view size on intel
[SVN r38167]
2007-07-08 14:26:01 +00:00
eb79a48868 testing zero length sequences have converting ctors
[SVN r38156]
2007-07-06 20:48:04 +00:00
3612acb0ef adding working converting ctors for zero length sequences
[SVN r38155]
2007-07-06 20:47:11 +00:00
d20847afd7 don't use forward declarations of partial specializations.
[SVN r38129]
2007-07-02 06:52:31 +00:00
8f8cf8145f handling fusion fold and accumulate function argument by value rather than const ref to fix free function usage
[SVN r38064]
2007-06-22 18:05:55 +00:00
996a4da2d6 testing fusion transform and fold work with free functions now that only Boost.ResultOf support is required
[SVN r38063]
2007-06-22 18:02:58 +00:00
09a6da1f80 fusion fold and transform passing refs for lvalues as per result_of protocol
[SVN r38039]
2007-06-19 21:30:06 +00:00
0e5cb04b99 documents concept preserving semantics of iterator_range (new) and zip_range (forgotten)
[SVN r38005]
2007-06-16 11:56:14 +00:00
6605340726 fixing some defects in fusion::fold loop unrolling
[SVN r37985]
2007-06-13 20:32:30 +00:00
8e93460511 tests covering defect in fusion::fold loop unrolling picked up by Christian Holmquist
[SVN r37984]
2007-06-13 20:30:30 +00:00
a2046a5aa6 fixes for msvc related to fusion result_of compatibility
[SVN r37971]
2007-06-11 21:09:44 +00:00
0fcbc5b467 result_of and polymorphic function obj compatibility
[SVN r37962]
2007-06-11 07:01:05 +00:00
414b87dbdb fixing bug in internal use of fusion::result_of::distance
[SVN r37934]
2007-06-07 20:43:50 +00:00
d68dd4d43e more flat includes
[SVN r37909]
2007-06-06 01:23:45 +00:00
35ec412acf more flat includes
[SVN r37908]
2007-06-06 01:13:33 +00:00
6fbd010bbc more flat includes
[SVN r37907]
2007-06-06 00:18:13 +00:00
2bbf2a7ec4 added include/swap.hpp
[SVN r37905]
2007-06-05 22:09:51 +00:00
40524cfda1 loop unrolling count(_if)
[SVN r37875]
2007-06-02 21:48:14 +00:00
b33ce64895 correcting defective fusion count_if test case
[SVN r37874]
2007-06-02 16:48:49 +00:00
d2f019514e fusion find_if loop unrolling and use of advance optimization for random traversal sequences
[SVN r37856]
2007-06-01 22:47:49 +00:00
a4268d3cf9 loop unrolling for compile time perf in any, all and none
[SVN r37820]
2007-05-30 06:56:32 +00:00
da31732ca3 fixing defective test case with bad rvalue / lvalue handling issue
[SVN r37819]
2007-05-30 06:47:39 +00:00
6097406ca1 covering accumulate as part of fusion fold tests
[SVN r37807]
2007-05-28 23:13:46 +00:00
b935ea84a9 loop unrolling for fusion iteration algorithms
[SVN r37806]
2007-05-28 23:12:53 +00:00
2c7e484787 fix to transform view distance impl
[SVN r37805]
2007-05-28 22:57:59 +00:00
0ff8dd230d Removed tabs.
[SVN r37804]
2007-05-27 16:30:35 +00:00
05a706599a fix for swap picked up with gcc 4.1.2
[SVN r37791]
2007-05-26 19:54:13 +00:00
1bf333a444 fixes bug reported by John Maddock. Typo: associative structures have associative members.
[SVN r37762]
2007-05-24 21:08:34 +00:00
d171c25dd2 fixes bug in unfused_generic reported by Eric Niebler
[SVN r37739]
2007-05-22 10:53:49 +00:00
5ec07406da Adding file...
[SVN r37702]
2007-05-16 16:25:48 +00:00
f2f3b2cf1e Adding file...
[SVN r37701]
2007-05-16 16:10:58 +00:00
dfcadb449b tests for assoc struct adaptor
[SVN r37639]
2007-05-08 22:16:09 +00:00
f8bb69dc9a adding struct associative adaptor
[SVN r37638]
2007-05-08 22:14:58 +00:00
8b2e69c764 Added file.
[SVN r37604]
2007-05-06 19:18:27 +00:00
bb27fc1089 fusion swap documentation
[SVN r37570]
2007-05-02 22:47:23 +00:00
73d47b7267 Added file
[SVN r37562]
2007-05-02 18:14:22 +00:00
a1b7949dce tests for swap
[SVN r37553]
2007-05-01 20:57:15 +00:00
77c04b0e57 swap implementation
[SVN r37552]
2007-05-01 20:56:32 +00:00
da82119dd3 more flat includes
[SVN r37534]
2007-04-29 16:18:01 +00:00
416b82b14a some changes for conceptgcc-4.3
[SVN r37529]
2007-04-28 21:22:55 +00:00
4c4e91a3ce more flat includes
[SVN r37490]
2007-04-22 23:20:21 +00:00
1a1fe819dc more flat includes
[SVN r37487]
2007-04-22 10:09:38 +00:00
a7ca680c0f mpl.hpp header now includes 2 way mapping to and from mpl and fusion
#include <boost/fusion/sequence/adapted/mpl.hpp>
#include <boost/fusion/sequence/intrinsic/mpl.hpp>


[SVN r37484]
2007-04-22 08:06:36 +00:00
11a0b0acce more flat includes
[SVN r37479]
2007-04-22 06:40:33 +00:00
d87b6aaf57 fixed bug where first element is convertible from input sequence
[SVN r37475]
2007-04-20 03:45:36 +00:00
bf4c542d5d more flat includes
[SVN r37436]
2007-04-14 08:27:24 +00:00
bf4de4d0af typo fix
[SVN r37413]
2007-04-10 22:27:41 +00:00
02005e075f more flat includes
[SVN r37342]
2007-04-03 06:17:56 +00:00
8da8ce2c61 updates link to boost::shared_ptr
[SVN r37341]
2007-04-02 15:50:23 +00:00
33b2d3b750 changes phrasing (minor)
[SVN r37340]
2007-04-02 15:49:35 +00:00
67525cf4ab fixes typos: at<0>(...
[SVN r37339]
2007-04-02 15:45:59 +00:00
d19c24a886 functional module
[SVN r37338]
2007-04-02 15:43:37 +00:00
6a01312869 workaround for VC7.1 getting confused with optional and variant boost::get functions
[SVN r37337]
2007-04-02 13:20:16 +00:00
0913d82b43 forgot to commit.
[SVN r37336]
2007-04-02 12:41:10 +00:00
5e9e7f31a4 wrong library, FUSION, not SPIRIT
[SVN r37332]
2007-04-02 05:13:25 +00:00
bf05751f9e added BOOST_SPIRIT_ADAPT_STRUCT macro
[SVN r37331]
2007-04-02 04:34:24 +00:00
5423cde1f1 updates
[SVN r37329]
2007-04-02 03:52:41 +00:00
6002bc9bb4 added struct wrapping facilities to make it very easy to make any struct a conforming fusion sequence
[SVN r37328]
2007-04-02 03:31:13 +00:00
ddf9cb743a updates VC7.1 workaround
[SVN r37293]
2007-03-26 19:58:44 +00:00
ddf3aaed17 adds VC7.1 portability note, changes [tip ...] to [blurb __tip__ ...]
[SVN r37292]
2007-03-26 19:56:08 +00:00
20e0ffc461 hides effect of VC7.1 workaround
[SVN r37291]
2007-03-26 19:54:26 +00:00
db545933b5 removes dependency to deleted adapted/mpl/tag_of.hpp
[SVN r37288]
2007-03-26 18:05:18 +00:00
5d935861c6 added todo item
[SVN r37280]
2007-03-24 23:48:35 +00:00
f98528a2af using the correct PP constant for map_tie
[SVN r37267]
2007-03-22 22:45:27 +00:00
4904567639 added documentation for map_tie
[SVN r37266]
2007-03-22 22:43:09 +00:00
85801896c4 mo' to do
[SVN r37263]
2007-03-22 21:18:00 +00:00
ae0b09292e fixes ambiguity in tag_of specialization
[SVN r37260]
2007-03-22 19:21:29 +00:00
0c3a766ee8 mo' to do
[SVN r37258]
2007-03-21 19:31:13 +00:00
1a1b40925b adds repetitive_view test
[SVN r37257]
2007-03-21 18:41:35 +00:00
05ea6cfab9 added entry
[SVN r37249]
2007-03-20 23:43:06 +00:00
f8d675d38d added some simple tests for map_tie
[SVN r37248]
2007-03-20 21:33:12 +00:00
d879cfcb97 added some additional todo notes
[SVN r37247]
2007-03-20 21:04:30 +00:00
19ded670ac removed obsolete include
[SVN r37241]
2007-03-20 16:07:52 +00:00
c2275cefdb updated todo
[SVN r37240]
2007-03-20 13:02:26 +00:00
fd64eec23d adds repetitive_view
[SVN r37233]
2007-03-19 21:03:35 +00:00
29a57477e0 adds intrinsics to support the concept of the underlying sequence
[SVN r37232]
2007-03-19 19:03:41 +00:00
324923acc2 changes is_convertible<category_of... to is_<concept>
[SVN r37231]
2007-03-19 18:16:21 +00:00
e82ddaed38 support for sequences weaker than Forward Sequence
[SVN r37230]
2007-03-19 18:13:24 +00:00
798ebd7593 updates hopelessly outdated version (from pre-CVS era of fusion/functional)
[SVN r37201]
2007-03-16 15:14:46 +00:00
41b16b8717 iterator_range can't be more than a forward sequence, until we implement more intrinsics
[SVN r37200]
2007-03-16 15:10:55 +00:00
8f51212782 fix missing include
[SVN r37199]
2007-03-16 14:49:48 +00:00
74724c32dd testing the zip algorithm with unused arg
[SVN r37151]
2007-03-06 21:51:06 +00:00
d1cc519a44 unused entries in zip
[SVN r37150]
2007-03-06 21:37:26 +00:00
fad42340ad zip ignore capabilities
[SVN r37149]
2007-03-06 21:26:54 +00:00
92e7e32ed8 update copyright notice
[SVN r37131]
2007-03-02 10:44:14 +00:00
f19c0b767d unpack_args has been removed - there are docs for its replacement
[SVN r37075]
2007-02-25 22:25:29 +00:00
a3b3411384 removes obsolete unpack_args
[SVN r37074]
2007-02-25 22:15:59 +00:00
4d65880283 removes test for obsolete unpack_args
[SVN r37073]
2007-02-25 22:15:08 +00:00
5c77671af1 updates html files
[SVN r37072]
2007-02-25 22:02:27 +00:00
1a3b7b5d8c abbreviates section names in functional module, adds missing copyright
[SVN r37071]
2007-02-25 21:56:30 +00:00
e9c82ee03a abbreviated section names
[SVN r37070]
2007-02-25 21:55:40 +00:00
e9a597a1eb adds functional section TOC
[SVN r37069]
2007-02-25 21:13:57 +00:00
2522e62409 reduces chunk depth (Boost inspection complaints about path length)
[SVN r37068]
2007-02-25 21:12:10 +00:00
49a118d2b4 reduces accidentally high TOC level
[SVN r37067]
2007-02-25 20:56:47 +00:00
f0abc88775 Correct testing bugs:
either changing assert(...) or BOOST_ASSERT(...) to BOOST_TEST
    (in my code only)

    or adding "return boost::report_errors();" where it was clearly
    missing (and a pure bug, in anyone's code).


[SVN r37057]
2007-02-24 22:40:59 +00:00
9d5a463806 added flat include directory
[SVN r36993]
2007-02-18 16:07:55 +00:00
a9a9bd9475 adds MSVC workaround
[SVN r36988]
2007-02-18 00:42:14 +00:00
74d062d2da adds deduce metafunctions
[SVN r36964]
2007-02-15 23:31:33 +00:00
a56348497f adds O(1) empty implementation
[SVN r36963]
2007-02-15 23:28:40 +00:00
50e7b2c933 adds benchmark for functional components - draft version
[SVN r36962]
2007-02-15 23:20:27 +00:00
e710609227 adds example implementation of bind
[SVN r36961]
2007-02-15 23:19:09 +00:00
70a39b554f adds test suite for functional module
[SVN r36960]
2007-02-15 23:14:42 +00:00
ca6f831b96 adds documentation for functional module
[SVN r36959]
2007-02-15 23:11:24 +00:00
67f0df4958 moves Polymorphic Function Object concept to functional module
[SVN r36957]
2007-02-15 23:01:23 +00:00
0832de9bb3 adds functional module
[SVN r36956]
2007-02-15 22:48:01 +00:00
0ea1bbb067 adds functional module
[SVN r36955]
2007-02-15 22:41:45 +00:00
f975648eea vc7.1 bugfix
[SVN r36919]
2007-02-09 12:16:50 +00:00
94c2c0e526 vc7.1 bugfix (ICE)
[SVN r36918]
2007-02-09 12:16:39 +00:00
693200182f fixes
[SVN r36908]
2007-02-07 22:59:25 +00:00
a0a0613e36 fixing binary transform equal_to
[SVN r36823]
2007-01-28 20:52:15 +00:00
bd6f62ea3c fixing iterator comparison for transform view
[SVN r36822]
2007-01-28 10:17:56 +00:00
ef114d537d changes TOC settings to make all components reachable, again
[SVN r36814]
2007-01-27 13:05:23 +00:00
586440e16e introduces documentation for deduce / deduce_sequence
[SVN r36813]
2007-01-27 10:52:43 +00:00
1c542fa544 introduces test for deduce / deduce_sequence
[SVN r36812]
2007-01-27 10:49:00 +00:00
aa1d326ba4 introduces deduce metafunctions
[SVN r36811]
2007-01-27 10:42:55 +00:00
469a4a2d7a minor presentation tweaks
[SVN r36767]
2007-01-23 06:15:17 +00:00
63c122f0d8 Deeper TOC level + typo fix: rename apply->result in algo docs
[SVN r36766]
2007-01-22 00:40:36 +00:00
64a8b5e7f3 doc tweaks
[SVN r36747]
2007-01-18 07:26:33 +00:00
c5f8494832 prevents potential ODR violation through mpl::begin / mpl::is_sequence
[SVN r36727]
2007-01-14 13:35:28 +00:00
bc7d10ec94 added is_empty test
[SVN r36725]
2007-01-14 03:22:54 +00:00
bce9a2f6ff adds #undef to fix macro leak
[SVN r36722]
2007-01-13 19:44:15 +00:00
a5bb66618d removes outdated workaround for broken mpl::is_sequence
[SVN r36561]
2007-01-02 09:10:04 +00:00
2be540e903 some updates
[SVN r36555]
2007-01-01 02:23:51 +00:00
ef48d728ef fixing level at which sequence base is applied
[SVN r36460]
2006-12-19 14:46:40 +00:00
6ed683b610 added deque tests
[SVN r36458]
2006-12-18 22:36:43 +00:00
2fba7fb2f3 added initial version of deque
[SVN r36457]
2006-12-18 21:09:53 +00:00
31f5b55766 renamed Jamfile.v2 to Jamfile and updated the docs
[SVN r36379]
2006-12-14 08:41:22 +00:00
eba11fc229 Updates for boost::tuple and boost::variant
[SVN r36178]
2006-11-26 22:41:04 +00:00
e5cf298835 variant and boost tuple adaptor docs
[SVN r36140]
2006-11-21 22:49:05 +00:00
4f14542256 better operator handling
[SVN r36126]
2006-11-21 02:01:13 +00:00
1b7f4a1a47 Documentation fix + stuff
[SVN r36122]
2006-11-20 23:17:25 +00:00
141dac45fe no more #include <iostream>
[SVN r36102]
2006-11-20 06:18:12 +00:00
15ff870381 added code to peek into assembler
[SVN r36088]
2006-11-19 16:06:02 +00:00
70eb7e588d updates + zip tests
[SVN r36087]
2006-11-19 14:17:29 +00:00
4a0304a699 sequence performance tests
[SVN r36086]
2006-11-19 05:15:31 +00:00
5386f5dd3e corrected iterator comparison defect
[SVN r36063]
2006-11-16 22:09:39 +00:00
37baabd5d5 variant missing include fixes
[SVN r36062]
2006-11-16 22:08:50 +00:00
f742cee848 minor tweak
[SVN r36020]
2006-11-13 09:28:04 +00:00
fe9949a59c added variant traits tests
[SVN r36019]
2006-11-13 08:13:12 +00:00
e3f20b5224 added missing traits support
[SVN r36018]
2006-11-13 08:12:20 +00:00
165910e4a3 minor tweaks for intel
[SVN r36017]
2006-11-13 01:32:27 +00:00
c0c9bbc700 minor tweaks
[SVN r36016]
2006-11-13 01:16:28 +00:00
6860872d7b adding tests for variant as adapted sequence
[SVN r36015]
2006-11-12 23:08:59 +00:00
2a652e5424 variant as a fusion sequence
[SVN r36014]
2006-11-12 23:07:18 +00:00
0faf16666f segmented_size, for calculating the size of any segmented data structure
[SVN r35945]
2006-11-09 06:36:04 +00:00
c621277c07 usability tweaks: functions that return iterators return them as *const* to allow chaining when the recipient function expects a reference (e.g. foo(Iter&) )
[SVN r35940]
2006-11-09 01:48:46 +00:00
1495 changed files with 101406 additions and 40652 deletions

28
doc/Jamfile Normal file
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@ -0,0 +1,28 @@
#==============================================================================
# Copyright (c) 2003-2011 Joel de Guzman
#
# Use, modification and distribution is subject to the Boost Software
# License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
# http://www.boost.org/LICENSE_1_0.txt)
#==============================================================================
project boost/libs/fusion/doc ;
import boostbook : boostbook ;
using quickbook ;
path-constant images_location : html ;
boostbook quickbook
:
fusion.qbk
:
<xsl:param>boost.root=../../../..
<xsl:param>chunk.section.depth=4
<xsl:param>chunk.first.sections=1
<xsl:param>toc.section.depth=3
<xsl:param>toc.max.depth=3
<xsl:param>generate.section.toc.level=4
<format>pdf:<xsl:param>boost.url.prefix=http://www.boost.org/doc/libs/release/libs/fusion/doc/html
<format>pdf:<xsl:param>img.src.path=$(images_location)/
;

View File

@ -1,16 +0,0 @@
project boost/libs/fusion/doc ;
import boostbook : boostbook ;
using quickbook ;
boostbook quickbook
:
fusion.qbk
:
<xsl:param>boost.root=../../../..
<xsl:param>boost.libraries=../../../libraries.htm
<xsl:param>chunk.section.depth=4
<xsl:param>chunk.first.sections=1
<xsl:param>toc.section.depth=3
<xsl:param>toc.max.depth=1
;

View File

@ -1,15 +1,23 @@
[/==============================================================================
Copyright (C) 2001-2011 Joel de Guzman
Copyright (C) 2006 Dan Marsden
Use, modification and distribution is subject to the Boost Software
License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
===============================================================================/]
[section Acknowledgements]
Special thanks to David Abrahams, Douglas Gregor, Hartmut Kaiser, Aleksey
Gurtovoy, Peder Holt, Daniel Wallin, Jaakko Jarvi, Jeremiah Willcock, Dan
Marsden, Eric Niebler, Joao Abecasis and Andy Little. These people are
Special thanks to David Abrahams, Douglas Gregor, Hartmut Kaiser, Aleksey
Gurtovoy, Peder Holt, Daniel Wallin, Jaakko Jarvi, Jeremiah Willcock, Dan
Marsden, Eric Niebler, Joao Abecasis and Andy Little. These people are
instrumental in the design and development of Fusion.
Special thanks to Ronald Garcia, the review manager and to all the people in the
boost community who participated in the review: Andreas Pokorny, Andreas Huber,
Jeff Flinn, David Abrahams, Pedro Lamarao, Larry Evans, Ryan Gallagher, Andy
Little, Gennadiy Rozental, Tobias Schwinger, Joao Abecasis, Eric Niebler, Oleg
Abrosimov, Gary Powell, Eric Friedman, Darren Cook, Martin Bonner and Douglas
Special thanks to Ronald Garcia, the review manager and to all the people in the
boost community who participated in the review: Andreas Pokorny, Andreas Huber,
Jeff Flinn, David Abrahams, Pedro Lamarao, Larry Evans, Ryan Gallagher, Andy
Little, Gennadiy Rozental, Tobias Schwinger, Joao Abecasis, Eric Niebler, Oleg
Abrosimov, Gary Powell, Eric Friedman, Darren Cook, Martin Bonner and Douglas
Gregor.
[endsect]

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@ -1,3 +1,48 @@
[/==============================================================================
Copyright (C) 2001-2011 Joel de Guzman
Copyright (C) 2006 Dan Marsden
Copyright (C) 2006 Tobias Schwinger
Copyright (C) 2010 Christopher Schmidt
Use, modification and distribution is subject to the Boost Software
License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
===============================================================================/]
[section Change log]
This section summarizes significant changes to the Fusion library.
[endsect]
* Sep 27, 2006: Added `boost::tuple` support. (Joel de Guzman)
* Nov 17, 2006: Added `boost::variant` support. (Joel de Guzman)
* Feb 15, 2007: Added functional module. (Tobias Schwinger)
* April 2, 2007: Added struct adapter. (Joel de Guzman)
* May 8, 2007: Added associative struct adapter. (Dan Marsden)
* Dec 20, 2007: Removed `boost::variant` support. After thorough
investigation, I think now that the move to make variant a
fusion sequence is rather quirky. A variant will always
have a size==1 regardless of the number of types it can contain
and there's no way to know at compile time what it contains.
Iterating over its types is simply wrong. All these imply that
the variant is *not* a fusion sequence. (Joel de Guzman)
* Oct 12, 2009: The accumulator is the first argument to the functor of
__fold__ and __accumulate__. (Christopher Schmidt)
* Oct 30, 2009: Added support for associative iterators and views. (Christopher
Schmidt)
* March 1, 2010: Added __adapt_struct_named__ and __adapt_struct_named_ns__
(Hartmut Kaiser)
* April 4, 2010: Added __array__ support, __adapt_tpl_struct__,
__adapt_assoc_tpl_struct__, __adapt_assoc_struct_named__ and
__adapt_assoc_struct_named_ns__ (Christopher Schmidt)
* April 5, 2010: Added __define_struct__, __define_tpl_struct__,
__define_assoc_struct__ and __define_assoc_tpl_struct__ (Christopher Schmidt)
* June 18, 2010: Added __reverse_fold__, __iter_fold__ and __reverse_iter_fold__
(Christopher Schmidt)
* October 7, 2010: Added __adapt_adt__, __adapt_tpl_adt__,
__adapt_assoc_adt__ and __adapt_assoc_tpl_adt__ (Joel de Guzman,
Hartmut Kaiser and Christopher Schmidt)
* August 29, 2011: Added support for segmented sequences and iterators (Eric Niebler)
* September 16, 2011: Added preprocessed files (using wave) to speed up
compilation (Joel de Guzman)
* October 8, 2011: Added adaptor for std::tuple (Joel de Guzman)
[endsect]

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@ -1,7 +1,17 @@
[/==============================================================================
Copyright (C) 2001-2011 Joel de Guzman
Copyright (C) 2006 Dan Marsden
Use, modification and distribution is subject to the Boost Software
License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
===============================================================================/]
[section Extension]
[section:ext_full The Full Extension Mechanism]
The Fusion library is designed to be extensible, new sequences types can easily
be added. In fact, the library support for `std::pair`, `boost::array` and __mpl__
be added. In fact, the library support for `std::pair`, `boost::array` and __mpl__
sequences is entirely provided using the extension mechanism.
The process for adding a new sequence type to Fusion is:
@ -28,7 +38,7 @@ are going to use the type:
{}
};
}
We are going to pretend that this type has been provided by a 3rd party
library, and therefore cannot be modified. We shall work through all the
necessary steps to enable `example_struct` to serve as an __associative_sequence__
@ -50,8 +60,9 @@ tag type for operations involving our sequence. This is done by specializing
`traits::tag_of` for our sequence type.
#include <boost/fusion/support/tag_of_fwd.hpp>
#include <boost/fusion/include/tag_of_fwd.hpp>
namespace boost { namespace fusion { namespace traits {
namespace boost { namespace fusion { namespace traits {
template<>
struct tag_of<example_struct>
{
@ -59,12 +70,13 @@ tag type for operations involving our sequence. This is done by specializing
};
}}}
`traits::tag_of` also has a second template argument,
that can be used in conjuction with `boost::enable_if` to provide tag
`traits::tag_of` also has a second template argument,
that can be used in conjuction with `boost::enable_if` to provide tag
support for groups of related types. This feature is not necessary
for our sequence, but for an example see the code in:
#include <boost/fusion/sequence/adapted/mpl/tag_of.hpp>
#include <boost/fusion/adapted/array/tag_of.hpp>
#include <boost/fusion/include/tag_of.hpp>
[heading Designing a suitable iterator]
@ -96,7 +108,7 @@ A quick summary of the details of our iterator:
# The iterator is parameterized by the type it is iterating over, and the index of the current element.
# The typedefs `struct_type` and `index` provide convenient access to information we will need later in
the implementation.
# The typedef `category` allows the `traits::__category_of__` metafunction to establish
# The typedef `category` allows the `traits::__category_of__` metafunction to establish
the traversal category of the iterator.
# The constructor stores a reference to the `example_struct` being iterated over.
@ -109,7 +121,7 @@ add features to our implementation.
[heading A first couple of instructive features]
To start with, we will get the __result_of_value_of__ metafunction working. To
do this, we provide a specialization of the `boost::fusion::extension::value_of_impl` template for
do this, we provide a specialization of the `boost::fusion::extension::value_of_impl` template for
our iterator's tag type.
template<>
@ -134,15 +146,15 @@ our iterator's tag type.
The implementation itself is pretty simple, it just uses 2 partial specializations to
provide the type of the 2 different members of `example_struct`, based on the index of the iterator.
To understand how `value_of_impl` is used by the library we will look at the implementation of __value_of__:
To understand how `value_of_impl` is used by the library we will look at the implementation of __result_of_value_of__:
template <typename Iterator>
struct __value_of__
struct value_of
: extension::value_of_impl<typename detail::tag_of<Iterator>::type>::
template apply<Iterator>
{};
So __value_of__ uses __tag_dispatching__ to select an __mpl_metafunction_class__
So __result_of_value_of__ uses __tag_dispatching__ to select an __mpl_metafunction_class__
to provide its functionality. You will notice this pattern throughout the
implementation of Fusion.
@ -184,7 +196,7 @@ specialization of `deref_impl`.
}
The use of `deref_impl` is very similar to that of `value_of_impl`, but it also
provides some runtime functionality this time via the `call` static member function.
provides some runtime functionality this time via the `call` static member function.
To see how `deref_impl` is used, lets have a look at the implementation of __deref__:
namespace result_of
@ -205,25 +217,25 @@ To see how `deref_impl` is used, lets have a look at the implementation of __der
}
So again __result_of_deref__ uses __tag_dispatching__ in exactly the
same way as the __value_of__ implementation. The runtime functionality used
same way as the __result_of_value_of__ implementation. The runtime functionality used
by __deref__ is provided by the `call` static function of the selected
__mpl_metafunction_class__.
The actual implementation of `deref_impl` is slightly more complex than that of `value_of_impl`.
The actual implementation of `deref_impl` is slightly more complex than that of `value_of_impl`.
We also need to implement the `call` function, which returns a reference
to the appropriate member of the underlying sequence. We also require a little
bit of metaprogramming to return `const` references if the underlying sequence
is const.
[note Although there is a fair amount of left to do to produce a fully fledged
Fusion sequence, __value_of__ and __deref__ illustrate all the signficant concepts
Fusion sequence, __result_of_value_of__ and __deref__ illustrate all the signficant concepts
required. The remainder of the process is very repetitive, simply requiring
implementation of a suitable `xxxx_impl` for each feature `xxxx`.
]
[heading Implementing the remaining iterator functionality]
Ok, now we have seen the way __value_of__ and __deref__ work, everything else will work
Ok, now we have seen the way __result_of_value_of__ and __deref__ work, everything else will work
in pretty much the same way. Lets start with forward iteration,
by providing a `next_impl`:
@ -257,7 +269,7 @@ __random_access_iterator__ `distance_impl` and `advance_impl` also need to be pr
in order to satisfy the necessary complexity guarantees. As our iterator is
a __random_access_iterator__ we will have to implement all of these functions.
Full implementations of `prior_impl`, `advance_impl`, `distance_impl` and `equal_to_impl` are
Full implementations of `prior_impl`, `advance_impl`, `distance_impl` and `equal_to_impl` are
provided in the example code.
[heading Implementing the intrinsic functions of the sequence]
@ -275,7 +287,7 @@ an `impl` type specialized for our sequence tag:
We've some similar formalities to complete, providing `category_of_impl` so Fusion
can correctly identify our sequence type, and `is_view_impl` so Fusion can correctly
identify our sequence as not being a __view__ type. Implementations are
identify our sequence as not being a __view__ type. Implementations are
provide in the example code.
Now we've completed some formalities, on to more interesting features. Lets get
@ -300,20 +312,21 @@ our sequence.
The implementation uses the same ideas we have applied throughout, in this case
we are just creating one of the iterators we developed earlier, pointing to the
first element in the sequence. The implementation of __end__ is very similar, and
first element in the sequence. The implementation of __end__ is very similar, and
is provided in the example code.
For our __random_access_sequence__ we will also need to implement `size_impl`,
`value_at_impl` and `at_impl`.
[heading Enabling our type as an associative container]
[heading Enabling our type as an associative sequence]
In order for `example_struct` to serve as an associative container,
we need to enable 3 lookup features, __at_key__, __value_at_key__ and __has_key__.
We also need to provide an implementation of the `is_associative` trait
so that our sequence can be correctly identified as an associative container.
In order for `example_struct` to serve as an associative forward sequence,
we need to adapt the traversal category of our sequence and our iterator
accordingly and enable 3 intrinsic sequence lookup features, __at_key__,
__value_at_key__ and __has_key__. We also need to enable 3 iterator lookup
features, __result_of_key_of__, __result_of_value_of_data__ and __deref_data__.
To implement `at_key_impl` we need to associate the `fields::age` and `fields::age`
To implement `at_key_impl` we need to associate the `fields::name` and `fields::age`
types described in the __quick_start__ guide with the appropriate members of `example_struct`.
Our implementation is as follows:
@ -358,15 +371,14 @@ Its all very similar to the implementations we've seen previously,
such as `deref_impl` and `value_of_impl`. Instead of identifying
the members by index or position, we are now selecting them using
the types `fields::name` and `fields::age`. The implementations of
`value_at_key_impl` and `has_key_impl` are equally straightforward,
and are provided in the example code, along with an implementation
of `is_associative_impl`.
the other functions are equally straightforward, and are provided in
the example code.
[heading Summary]
We've now worked through the entire process for adding a new random
access sequence and we've also enabled our type to serve as an associative
container. The implementation was slightly longwinded, but followed
sequence. The implementation was slightly longwinded, but followed
a simple repeating pattern.
The support for `std::pair`, __mpl__ sequences, and `boost::array` all
@ -375,3 +387,104 @@ for a variety of types.
[endsect]
[section Sequence Facade]
[heading Description]
The __sequence_facade__ template provides an intrusive mechanism for
producing a conforming Fusion sequence.
[heading Synopsis]
template<typename Derived, typename TravesalTag, typename IsView = mpl::false_>
struct sequence_facade;
[heading Usage]
The user of __sequence_facade__ derives his sequence type from a specialization of __sequence_facade__ and passes the derived sequence type as the first template parameter. The second template parameter should be the traversal category of the sequence being implemented. The 3rd parameter should be set to `mpl::true_` if the sequence is a view.
The user must the implement the key expressions required by their sequence type.
[table Parameters
[[Name][Description]]
[[`sequence`, `Seq`][A type derived from __sequence_facade__]]
[[`N`][An __mpl_integral_constant__]]
]
[table Key Expressions
[[Expression][Result]]
[[`sequence::template begin<Seq>::type`][The type of an iterator to the beginning of a sequence of type `Seq`]]
[[`sequence::template begin<Seq>::call(seq)`][An iterator to the beginning of sequence `seq`]]
[[`sequence::template end<Seq>::type`][The type of an iterator to the end of a sequence of type `Seq`]]
[[`sequence::template end<Seq>::call(seq)`][An iterator to the end of sequence `seq`]]
[[`sequence::template size<Seq>::type`][The size of a sequence of type `Seq` as an __mpl_integral_constant__]]
[[`sequence::template size<Seq>::call(seq)`][The size of sequence `seq`]]
[[`sequence::template empty<Seq>::type`][Returns `mpl::true_` if `Seq` has zero elements, `mpl::false_` otherwise.]]
[[`sequence::template empty<Seq>::call`][Returns a type convertible to `bool` that evaluates to true if the sequence is empty, else, evaluates to false. ]]
[[`sequence::template at<Seq, N>::type`][The type of element `N` in a sequence of type `Seq`]]
[[`sequence::template at<Seq, N>::call(seq)`][Element `N` in sequence `seq`]]
[[`sequence::template value_at<Sequence, N>::type`][The type of the `N`th element in a sequence of type `Seq`]]
]
[heading Include]
#include <boost/fusion/sequence/sequence_facade.hpp>
#include <boost/fusion/include/sequence_facade.hpp>
[heading Example]
A full working example using __sequence_facade__ is provided in triple.cpp in the extension examples.
[endsect]
[section Iterator Facade]
[heading Description]
The __iterator_facade__ template provides an intrusive mechanism for
producing a conforming Fusion iterator.
[heading Synopsis]
template<typename Derived, typename TravesalTag>
struct iterator_facade;
[heading Usage]
The user of iterator_facade derives his iterator type from a specialization of iterator_facade and passes the derived iterator type as the first template parameter. The second template parameter should be the traversal category of the iterator being implemented.
The user must the implement the key expressions required by their iterator type.
[table Parameters
[[Name][Description]]
[[`iterator`, `It`, `It1`, `It2`][A type derived from __iterator_facade__]]
[[`N`][An __mpl_integral_constant__]]
]
[table Key Expressions
[[Expression][Result][Default]]
[[`iterator::template value_of<It>::type`][The element stored at iterator position `It`][None]]
[[`iterator::template deref<It>::type`][The type returned when dereferencing an iterator of type `It`][None]]
[[`iterator::template deref<It>::call(it)`][Dereferences iterator `it`][None]]
[[`iterator::template next<It>::type`][The type of the next element from `It`][None]]
[[`iterator::template next<It>::call(it)`][The next iterator after `it`][None]]
[[`iterator::template prior<It>::type`][The type of the next element from `It`][None]]
[[`iterator::template prior<It>::call(it)`][The next iterator after `it`][None]]
[[`iterator::template advance<It, N>::type`][The type of an iterator advanced `N` elements from `It`][Implemented in terms of `next` and `prior`]]
[[`iterator::template advance<It, N>::call(it)`][An iterator advanced `N` elements from `it`][Implemented in terms of `next` and `prior`]]
[[`iterator::template distance<It1, It2>::type`][The distance between iterators of type `It1` and `It2` as an __mpl_integral_constant__][None]]
[[`iterator::template distance<It1, It2>::call(it1, it2)`][The distance between iterator `it1` and `it2`][None]]
[[`iterator::template equal_to<It1, It2>::type`][Returns `mpl::true_` if `It1` is equal to `It2`, `mpl::false_` otherwise.][`boost::same_type<It1, It2>::type`]]
[[`iterator::template equal_to<It1, It2>::call(it1, it2)`][Returns a type convertible to `bool` that evaluates to `true` if `It1` is equal to `It2`, `false` otherwise.][`boost::same_type<It1, It2>::type()`]]
[[`iterator::template key_of<It>::type`][The key type associated with the element from `It`][None]]
[[`iterator::template value_of_data<It>::type`][The type of the data property associated with the element from `It`][None]]
[[`iterator::template deref_data<It>::type`][The type that will be returned by dereferencing the data property of the element from `It`][None]]
[[`iterator::template deref_data<It>::call(it)`][Deferences the data property associated with the element referenced by `it`][None]]
]
[heading Header]
#include <boost/fusion/iterator/iterator_facade.hpp>
#include <boost/fusion/include/iterator_facade.hpp>
[heading Example]
A full working example using __iterator_facade__ is provided in triple.cpp in the extension examples.
[endsect]
[endsect]

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@ -1,8 +1,17 @@
[/==============================================================================
Copyright (C) 2001-2011 Joel de Guzman
Copyright (C) 2006 Dan Marsden
Copyright (C) 2010 Christopher Schmidt
Use, modification and distribution is subject to the Boost Software
License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
===============================================================================/]
[library Fusion
[quickbook 1.3]
[version 2.0]
[authors [de Guzman, Joel], [Marsden, Dan]]
[copyright 2001 2002 2003 2004 2005 Joel de Guzman, Dan Marsden]
[version 2.1]
[authors [de Guzman, Joel], [Marsden, Dan], [Schwinger, Tobias]]
[copyright 2001 2002 2003 2004 2005 2006 2011 2012 Joel de Guzman, Dan Marsden, Tobias Schwinger]
[purpose Statically Typed Heterogeneous Data Structures and Algorithms]
[license
Distributed under the Boost Software License, Version 1.0.
@ -29,17 +38,30 @@
[def __mlist_archive__ [@http://news.gmane.org/gmane.comp.parsers.spirit.general]]
[def __jaakko_jarvi__ [@http://www.boost.org/people/jaakko_jarvi.htm Jaakko Jarvi]]
[def __david_abrahams__ [@http://www.boost.org/people/dave_abrahams.htm David Abrahams]]
[def __the_forwarding_problem__ [@http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2002/n1385.htm The Forwarding Problem]]
[def __boost_any__ [@http://boost.org/doc/html/any.html Boost.Any]]
[def __new_iterator_concepts__ [@http://boost.org/libs/iterator/doc/new-iter-concepts.html New Iterator Concepts]]
[def __boost_array_library__ [@http://www.boost.org/doc/html/array.html Boost.Array Library]]
[def __boost_variant_library__ [@http://www.boost.org/doc/html/variant.html Boost.Variant Library]]
[def __boost_tuple_library__ [@http://www.boost.org/libs/tuple/doc/tuple_users_guide.html Boost.Tuple Library]]
[def __boost_ref__ [@http://www.boost.org/doc/html/ref.html Boost.Ref]]
[def __boost_ref_call__ [@http://www.boost.org/doc/html/ref.html `ref`]]
[def __boost_result_of__ [@http://www.boost.org/libs/utility/utility.htm#result_of Boost.ResultOf]]
[def __boost_result_of_call__ [@http://www.boost.org/libs/utility/utility.htm#result_of `boost::result_of`]]
[def __boost_enable_if__ [@http://www.boost.org/libs/utility/enable_if.html Boost.EnableIf utility]]
[def __boost_shared_ptr_call__ [@http://www.boost.org/libs/smart_ptr/shared_ptr.htm `boost::shared_ptr`]]
[def __boost_func_forward__ [@http://www.boost.org/libs/functional/forward/doc/html/index.html Boost.Functional/Forward]]
[def __boost_func_factory__ [@http://www.boost.org/libs/functional/factory/doc/html/index.html Boost.Functional/Factory]]
[def __std_pair_doc__ [@http://www.sgi.com/tech/stl/pair.html `std::pair`]]
[def __std_plus_doc__ [@http://www.sgi.com/tech/stl/plus.html `std::plus`]]
[def __std_minus_doc__ [@http://www.sgi.com/tech/stl/minus.html `std::minus`]]
[def __mpl_integral_constant__ [@http://www.boost.org/libs/mpl/doc/refmanual/integral-constant.html MPL Integral Constant]]
[def __mpl_boolean_constant__ [@http://www.boost.org/libs/mpl/doc/refmanual/integral-constant.html MPL Boolean Constant]]
[def __mpl_metafunction_class__ [@http://www.boost.org/libs/mpl/doc/refmanual/metafunction-class.html MPL Metafunction Class]]
[def __mpl_lambda_expression__ [@http://www.boost.org/libs/mpl/doc/refmanual/lambda-expression.html MPL Lambda Expression]]
[def __mpl_integral_constant__ MPL Integral Constant]
[def __mpl_boolean_constant__ MPL Boolean Constant]
[def __mpl_metafunction_class__ MPL Metafunction Class]
[def __mpl_lambda_expression__ MPL Lambda Expression]
[def __lvalue__ LValue]
[def __unspecified__ /unspecified/]
@ -48,192 +70,252 @@
[def __is_view__ [link fusion.support.is_view `is_view`]]
[def __tag_of__ [link fusion.support.tag_of `tag_of`]]
[def __category_of__ [link fusion.support.category_of `category_of`]]
[def __deduce__ [link fusion.support.deduce `deduce`]]
[def __deduce_sequence__ [link fusion.support.deduce_sequence `deduce_sequence`]]
[def __fusion_pair__ [link fusion.support.pair `fusion::pair`]]
[def __pair__ [link fusion.support.pair `pair`]]
[def __fusion_make_pair__ [link fusion.support.pair `make_pair`]]
[def __iterator__ [link fusion.iterators Iterator]]
[def __iterator_concepts__ [link fusion.iterators.concepts Iterator Concepts]]
[def __forward_iterator__ [link fusion.iterators.concepts.forward_iterator Forward Iterator]]
[def __bidirectional_iterator__ [link fusion.iterators.concepts.bidirectional_iterator Bidirectional Iterator]]
[def __random_access_iterator__ [link fusion.iterators.concepts.random_access_iterator Random Access Iterator]]
[def __iterator__ [link fusion.iterator Iterator]]
[def __iterator_concepts__ [link fusion.iterator.concepts Iterator Concepts]]
[def __forward_iterator__ [link fusion.iterator.concepts.forward_iterator Forward Iterator]]
[def __bidirectional_iterator__ [link fusion.iterator.concepts.bidirectional_iterator Bidirectional Iterator]]
[def __random_access_iterator__ [link fusion.iterator.concepts.random_access_iterator Random Access Iterator]]
[def __associative_iterator__ [link fusion.iterator.concepts.associative_iterator Associative Iterator]]
[def __next__ [link fusion.iterators.functions.next `next`]]
[def __prior__ [link fusion.iterators.functions.prior `prior`]]
[def __advance__ [link fusion.iterators.functions.advance `advance`]]
[def __advance_c__ [link fusion.iterators.functions.advance_c `advance_c`]]
[def __distance__ [link fusion.iterators.functions.distance `distance`]]
[def __deref__ [link fusion.iterators.functions.deref `deref`]]
[def __next__ [link fusion.iterator.functions.next `next`]]
[def __prior__ [link fusion.iterator.functions.prior `prior`]]
[def __advance__ [link fusion.iterator.functions.advance `advance`]]
[def __advance_c__ [link fusion.iterator.functions.advance_c `advance_c`]]
[def __distance__ [link fusion.iterator.functions.distance `distance`]]
[def __deref__ [link fusion.iterator.functions.deref `deref`]]
[def __deref_data__ [link fusion.iterator.functions.deref_data `deref_data`]]
[def __result_of_next__ [link fusion.iterators.metafunctions.next `result_of::next`]]
[def __result_of_prior__ [link fusion.iterators.metafunctions.prior `result_of::prior`]]
[def __result_of_equal_to__ [link fusion.iterators.metafunctions.equal_to `result_of::equal_to`]]
[def __result_of_advance__ [link fusion.iterators.metafunctions.advance `result_of::advance`]]
[def __result_of_advance_c__ [link fusion.iterators.metafunctions.advance_c `result_of::advance_c`]]
[def __result_of_distance__ [link fusion.iterators.metafunctions.distance `result_of::distance`]]
[def __result_of_deref__ [link fusion.iterators.metafunctions.deref `result_of::deref`]]
[def __result_of_value_of__ [link fusion.iterators.metafunctions.value_of `result_of::value_of`]]
[def __value_of__ [link fusion.iterators.metafunctions.value_of `value_of`]]
[def __result_of_next__ [link fusion.iterator.metafunctions.next `result_of::next`]]
[def __result_of_prior__ [link fusion.iterator.metafunctions.prior `result_of::prior`]]
[def __result_of_equal_to__ [link fusion.iterator.metafunctions.equal_to `result_of::equal_to`]]
[def __result_of_advance__ [link fusion.iterator.metafunctions.advance `result_of::advance`]]
[def __result_of_advance_c__ [link fusion.iterator.metafunctions.advance_c `result_of::advance_c`]]
[def __result_of_distance__ [link fusion.iterator.metafunctions.distance `result_of::distance`]]
[def __result_of_deref__ [link fusion.iterator.metafunctions.deref `result_of::deref`]]
[def __result_of_value_of__ [link fusion.iterator.metafunctions.value_of `result_of::value_of`]]
[def __result_of_key_of__ [link fusion.iterator.metafunctions.key_of `result_of::key_of`]]
[def __result_of_value_of_data__ [link fusion.iterator.metafunctions.value_of_data `result_of::value_of_data`]]
[def __result_of_deref_data__ [link fusion.iterator.metafunctions.deref_data `result_of::deref_data`]]
[def __sequence__ [link fusion.sequences Sequence]]
[def __sequence_concepts__ [link fusion.sequences.concepts Sequence Concepts]]
[def __traversal_concept__ [link fusion.sequences.concepts.traversal Sequence Traversal Concept]]
[def __associativity_concept__ [link fusion.sequences.concepts.associativity Sequence Associativity Concept]]
[def __forward_sequence__ [link fusion.sequences.concepts.forward_sequence Forward Sequence]]
[def __bidirectional_sequence__ [link fusion.sequences.concepts.bidirectional_sequence Bidirectional Sequence]]
[def __random_access_sequence__ [link fusion.sequences.concepts.random_access_sequence Random Access Sequence]]
[def __associative_sequence__ [link fusion.sequences.concepts.associative_sequence Associative Sequence]]
[def __sequence__ [link fusion.sequence Sequence]]
[def __sequence_concepts__ [link fusion.sequence.concepts Sequence Concepts]]
[def __traversal_concept__ [link fusion.sequence.concepts.traversal Sequence Traversal Concept]]
[def __associativity_concept__ [link fusion.sequence.concepts.associativity Sequence Associativity Concept]]
[def __forward_sequence__ [link fusion.sequence.concepts.forward_sequence Forward Sequence]]
[def __bidirectional_sequence__ [link fusion.sequence.concepts.bidirectional_sequence Bidirectional Sequence]]
[def __random_access_sequence__ [link fusion.sequence.concepts.random_access_sequence Random Access Sequence]]
[def __associative_sequence__ [link fusion.sequence.concepts.associative_sequence Associative Sequence]]
[def __containers__ [link fusion.sequences.containers Containers]]
[def __vector__ [link fusion.sequences.containers.vector `vector`]]
[def __cons__ [link fusion.sequences.containers.cons `cons`]]
[def __list__ [link fusion.sequences.containers.list `list`]]
[def __set__ [link fusion.sequences.containers.set `set`]]
[def __map__ [link fusion.sequences.containers.map `map`]]
[def __containers__ [link fusion.container Container]]
[def __vector__ [link fusion.container.vector `vector`]]
[def __cons__ [link fusion.container.cons `cons`]]
[def __list__ [link fusion.container.list `list`]]
[def __deque__ [link fusion.container.deque `deque`]]
[def __front_extended_deque__ [link fusion.container.front_extended_deque `front_extended_deque`]]
[def __back_extended_deque__ [link fusion.container.back_extended_deque `back_extended_deque`]]
[def __set__ [link fusion.container.set `set`]]
[def __map__ [link fusion.container.map `map`]]
[def __view__ [link fusion.sequences.views View]]
[def __views__ [link fusion.sequences.views Views]]
[def __single_view__ [link fusion.sequences.views.single_view `single_view`]]
[def __filter_view__ [link fusion.sequences.views.filter_view `filter_view`]]
[def __iterator_range__ [link fusion.sequences.views.iterator_range `iterator_range`]]
[def __joint_view__ [link fusion.sequences.views.joint_view `joint_view`]]
[def __transform_view__ [link fusion.sequences.views.transform_view `transform_view`]]
[def __reverse_view__ [link fusion.sequences.views.reverse_view `reverse_view`]]
[def __view__ [link fusion.view View]]
[def __views__ [link fusion.view Views]]
[def __single_view__ [link fusion.view.single_view `single_view`]]
[def __filter_view__ [link fusion.view.filter_view `filter_view`]]
[def __iterator_range__ [link fusion.view.iterator_range `iterator_range`]]
[def __joint_view__ [link fusion.view.joint_view `joint_view`]]
[def __transform_view__ [link fusion.view.transform_view `transform_view`]]
[def __reverse_view__ [link fusion.view.reverse_view `reverse_view`]]
[def __zip_view__ [link fusion.view.zip_view `zip_view`]]
[def __std_pair__ [link fusion.sequences.adapted.std__pair `std::pair`]]
[def __boost_array__ [link fusion.sequences.adapted.boost__array `boost::array`]]
[def __mpl_sequence__ [link fusion.sequences.adapted.mpl_sequence mpl sequence]]
[def __array__ [link fusion.adapted.array array]]
[def __std_pair__ [link fusion.adapted.std__pair `std::pair`]]
[def __boost_array__ [link fusion.adapted.boost__array `boost::array`]]
[def __mpl_sequence__ [link fusion.adapted.mpl_sequence mpl sequence]]
[def __adapt_tpl_struct__ [link fusion.adapted.adapt_tpl_struct `BOOST_FUSION_ADAPT_TPL_STRUCT`]]
[def __adapt_struct_named__ [link fusion.adapted.adapt_struct_named `BOOST_FUSION_ADAPT_STRUCT_NAMED`]]
[def __adapt_struct_named_ns__ [link fusion.adapted.adapt_struct_named `BOOST_FUSION_ADAPT_STRUCT_NAMED_NS`]]
[def __adapt_assoc_tpl_struct__ [link fusion.adapted.adapt_assoc_tpl_struct `BOOST_FUSION_ADAPT_ASSOC_TPL_STRUCT`]]
[def __adapt_assoc_struct_named__ [link fusion.adapted.adapt_assoc_struct_named `BOOST_FUSION_ADAPT_ASSOC_STRUCT_NAMED`]]
[def __adapt_assoc_struct_named_ns__ [link fusion.adapted.adapt_assoc_struct_named `BOOST_FUSION_ADAPT_ASSOC_STRUCT_NAMED_NS`]]
[def __adapt_adt__ [link fusion.adapted.adapt_adt `BOOST_FUSION_ADAPT_ADT`]]
[def __adapt_tpl_adt__ [link fusion.adapted.adapt_tpl_adt `BOOST_FUSION_ADAPT_TPL_ADT`]]
[def __adapt_assoc_adt__ [link fusion.adapted.adapt_assoc_adt `BOOST_FUSION_ADAPT_ASSOC_ADT`]]
[def __adapt_assoc_tpl_adt__ [link fusion.adapted.adapt_assoc_tpl_adt `BOOST_FUSION_ADAPT_ASSOC_TPL_ADT`]]
[def __define_struct__ [link fusion.adapted.define_struct `BOOST_FUSION_DEFINE_STRUCT`]]
[def __define_tpl_struct__ [link fusion.adapted.define_tpl_struct `BOOST_FUSION_DEFINE_TPL_STRUCT`]]
[def __define_assoc_struct__ [link fusion.adapted.define_assoc_struct `BOOST_FUSION_DEFINE_ASSOC_STRUCT`]]
[def __define_assoc_tpl_struct__ [link fusion.adapted.define_assoc_tpl_struct `BOOST_FUSION_DEFINE_ASSOC_TPL_STRUCT`]]
[def __intrinsic__ [link fusion.sequences.intrinsics Intrinsic]]
[def __intrinsics__ [link fusion.sequences.intrinsics Intrinsics]]
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[def __result_of_begin__ [link fusion.sequences.intrinsics.metafunctions.begin `result_of::begin`]]
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[def __at__ [link fusion.sequences.intrinsics.functions.at `at`]]
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[def __result_of_value_at_key__ [link fusion.sequences.intrinsics.metafunctions.value_at_key `result_of::value_at_key`]]
[def __intrinsic__ [link fusion.sequence.intrinsic Intrinsic]]
[def __intrinsics__ [link fusion.sequence.intrinsic Intrinsics]]
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[def __result_of_begin__ [link fusion.sequence.intrinsic.metafunctions.begin `result_of::begin`]]
[def __end__ [link fusion.sequence.intrinsic.functions.end `end`]]
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[def __result_of_value_at_key__ [link fusion.sequence.intrinsic.metafunctions.value_at_key `result_of::value_at_key`]]
[def __conversion__ [link fusion.sequences.conversion.functions Conversion]]
[def __result_of_conversion__ [link fusion.sequences.conversion.metafunctions Conversion Metafunctions]]
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[def __result_of_as_vector__ [link fusion.sequences.conversion.metafunctions.as_vector `result_of::as_vector`]]
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[def __result_of_as_map__ [link fusion.sequences.conversion.metafunctions.as_map `result_of::as_map`]]
[def __conversion__ [link fusion.container.conversion.functions Conversion]]
[def __result_of_conversion__ [link fusion.container.conversion.metafunctions Conversion Metafunctions]]
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[def __result_of_as_vector__ [link fusion.container.conversion.metafunctions.as_vector `result_of::as_vector`]]
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[def __as_map__ [link fusion.container.conversion.functions.as_map `as_map`]]
[def __result_of_as_map__ [link fusion.container.conversion.metafunctions.as_map `result_of::as_map`]]
[def __generation__ [link fusion.sequences.generation.functions Generation]]
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[def __make_vector__ [link fusion.sequences.generation.functions.make_vector `make_vector`]]
[def __result_of_make_vector__ [link fusion.sequences.generation.metafunctions.make_vector `result_of::make_vector`]]
[def __vector_tie__ [link fusion.sequences.generation.functions.vector_tie `vector_tie`]]
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[def __make_list__ [link fusion.sequences.generation.functions.make_list `make_list`]]
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[def __make_set__ [link fusion.sequences.generation.functions.make_set `make_set`]]
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[def __make_map__ [link fusion.sequences.generation.functions.make_map `make_map`]]
[def __result_of_make_map__ [link fusion.sequences.generation.metafunctions.make_map `result_of::make_map`]]
[def __list_tie__ [link fusion.sequences.generation.functions.list_tie `list_tie`]]
[def __result_of_list_tie__ [link fusion.sequences.generation.metafunctions.list_tie `result_of::list_tie`]]
[def __generation__ [link fusion.container.generation.functions Generation]]
[def __result_of_generation__ [link fusion.container.generation.metafunctions Generation Metafunctions]]
[def __make_vector__ [link fusion.container.generation.functions.make_vector `make_vector`]]
[def __result_of_make_vector__ [link fusion.container.generation.metafunctions.make_vector `result_of::make_vector`]]
[def __vector_tie__ [link fusion.container.generation.functions.vector_tie `vector_tie`]]
[def __map_tie__ [link fusion.container.generation.functions.vector_tie `map_tie`]]
[def __result_of_vector_tie__ [link fusion.container.generation.metafunctions.vector_tie `result_of::vector_tie`]]
[def __make_vector__ [link fusion.container.generation.functions.make_vector `make_vector`]]
[def __result_of_make_vector__ [link fusion.container.generation.metafunctions.make_vector `result_of::make_vector`]]
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[def __result_of_make_deque__ [link fusion.container.generation.metafunctions.make_deque `result_of::make_deque`]]
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[def __deque_tie__ [link fusion.container.generation.functions.deque_tie `deque_tie`]]
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[def __out__ [link fusion.sequences.operators.i_o.out out]]
[def __in__ [link fusion.sequences.operators.i_o.in in]]
[def __eq__ [link fusion.sequences.operators.comparison.equal equal]]
[def __neq__ [link fusion.sequences.operators.comparison.not_equal not equal]]
[def __lt__ [link fusion.sequences.operators.comparison.less_than less than]]
[def __lte__ [link fusion.sequences.operators.comparison.less_than_equal less than equal]]
[def __gt__ [link fusion.sequences.operators.comparison.greater_than greater than]]
[def __gte__ [link fusion.sequences.operators.comparison.greater_than_equal greater than equal]]
[def __out__ [link fusion.sequence.operator.i_o.out out]]
[def __in__ [link fusion.sequence.operator.i_o.in in]]
[def __eq__ [link fusion.sequence.operator.comparison.equal equal]]
[def __neq__ [link fusion.sequence.operator.comparison.not_equal not equal]]
[def __lt__ [link fusion.sequence.operator.comparison.less_than less than]]
[def __lte__ [link fusion.sequence.operator.comparison.less_than_equal less than equal]]
[def __gt__ [link fusion.sequence.operator.comparison.greater_than greater than]]
[def __gte__ [link fusion.sequence.operator.comparison.greater_than_equal greater than equal]]
[def __algorithm__ [link fusion.algorithms Algorithm]]
[def __algorithms__ [link fusion.algorithms Algorithms]]
[def __poly_func_obj__ [link fusion.algorithms.concepts.polymorphic_function_object Polymorphic Function Object]]
[def __fold__ [link fusion.algorithms.iteration.functions.fold `fold`]]
[def __result_of_fold__ [link fusion.algorithms.iteration.metafunctions.fold `result_of::fold`]]
[def __accumulate__ [link fusion.algorithms.iteration.functions.accumulate `accumulate`]]
[def __result_of_accumulate__ [link fusion.algorithms.iteration.metafunctions.accumulate `result_of::accumulate`]]
[def __for_each__ [link fusion.algorithms.iteration.functions.for_each `for_each`]]
[def __result_of_for_each__ [link fusion.algorithms.iteration.metafunctions.for_each `result_of::for_each`]]
[def __any__ [link fusion.algorithms.query.functions.any `any`]]
[def __result_of_any__ [link fusion.algorithms.query.metafunctions.any `result_of::any`]]
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[def __result_of_all__ [link fusion.algorithms.query.metafunctions.all `result_of::all`]]
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[def __find__ [link fusion.algorithms.query.functions.find `find`]]
[def __result_of_find__ [link fusion.algorithms.query.metafunctions.find `result_of::find`]]
[def __find_if__ [link fusion.algorithms.query.functions.find_if `find_if`]]
[def __result_of_find_if__ [link fusion.algorithms.query.metafunctions.find_if `result_of::find_if`]]
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[def __result_of_count__ [link fusion.algorithms.query.metafunctions.count `result_of::count`]]
[def __count_if__ [link fusion.algorithms.query.functions.count_if `count_if`]]
[def __result_of_count_if__ [link fusion.algorithms.query.metafunctions.count_if `result_of::count_if`]]
[def __filter__ [link fusion.algorithms.transformation.functions.filter `filter`]]
[def __result_of_filter__ [link fusion.algorithms.transformation.metafunctions.filter `result_of::filter`]]
[def __filter_if__ [link fusion.algorithms.transformation.functions.filter_if `filter_if`]]
[def __result_of_filter_if__ [link fusion.algorithms.transformation.metafunctions.filter_if `result_of::filter_if`]]
[def __transform__ [link fusion.algorithms.transformation.functions.transform `transform`]]
[def __result_of_transform__ [link fusion.algorithms.transformation.metafunctions.transform `result_of::transform`]]
[def __replace__ [link fusion.algorithms.transformation.functions.replace `replace`]]
[def __result_of_replace__ [link fusion.algorithms.transformation.metafunctions.replace `result_of::replace`]]
[def __replace_if__ [link fusion.algorithms.transformation.functions.replace_if `replace_if`]]
[def __result_of_replace_if__ [link fusion.algorithms.transformation.metafunctions.replace_if `result_of::replace_if`]]
[def __remove__ [link fusion.algorithms.transformation.functions.remove `remove`]]
[def __result_of_remove__ [link fusion.algorithms.transformation.metafunctions.remove `result_of::remove`]]
[def __remove_if__ [link fusion.algorithms.transformation.functions.remove_if `remove_if`]]
[def __result_of_remove_if__ [link fusion.algorithms.transformation.metafunctions.remove_if `result_of::remove_if`]]
[def __reverse__ [link fusion.algorithms.transformation.functions.reverse `reverse`]]
[def __result_of_reverse__ [link fusion.algorithms.transformation.metafunctions.reverse `result_of::reverse`]]
[def __clear__ [link fusion.algorithms.transformation.functions.clear `clear`]]
[def __result_of_clear__ [link fusion.algorithms.transformation.metafunctions.clear `result_of::clear`]]
[def __erase__ [link fusion.algorithms.transformation.functions.erase `erase`]]
[def __result_of_erase__ [link fusion.algorithms.transformation.metafunctions.erase `result_of::erase`]]
[def __erase_key__ [link fusion.algorithms.transformation.functions.erase_key `erase_key`]]
[def __result_of_erase_key__ [link fusion.algorithms.transformation.metafunctions.erase_key `result_of::erase_key`]]
[def __insert__ [link fusion.algorithms.transformation.functions.insert `insert`]]
[def __result_of_insert__ [link fusion.algorithms.transformation.metafunctions.insert `result_of::insert`]]
[def __insert_range__ [link fusion.algorithms.transformation.functions.insert_range `insert_range`]]
[def __result_of_insert_range__ [link fusion.algorithms.transformation.metafunctions.insert_range `result_of::insert_range`]]
[def __join__ [link fusion.algorithms.transformation.functions.join `join`]]
[def __result_of_join__ [link fusion.algorithms.transformation.metafunctions.join `result_of::join`]]
[def __zip__ [link fusion.algorithms.transformation.functions.zip `zip`]]
[def __result_of_zip__ [link fusion.algorithms.transformation.metafunctions.zip `result_of::zip`]]
[def __pop_back__ [link fusion.algorithms.transformation.functions.pop_back `pop_back`]]
[def __result_of_pop_back__ [link fusion.algorithms.transformation.metafunctions.pop_back `result_of::pop_back`]]
[def __pop_front__ [link fusion.algorithms.transformation.functions.pop_front `pop_front`]]
[def __result_of_pop_front__ [link fusion.algorithms.transformation.metafunctions.pop_front `result_of::pop_front`]]
[def __push_back__ [link fusion.algorithms.transformation.functions.push_back `push_back`]]
[def __result_of_push_back__ [link fusion.algorithms.transformation.metafunctions.push_back `result_of::push_back`]]
[def __push_front__ [link fusion.algorithms.transformation.functions.push_front `push_front`]]
[def __result_of_push_front__ [link fusion.algorithms.transformation.metafunctions.push_front `result_of::push_front`]]
[def __algorithm__ [link fusion.algorithm Algorithm]]
[def __algorithms__ [link fusion.algorithm Algorithms]]
[def __copy__ [link fusion.algorithm.auxiliary.functions.copy `copy`]]
[def __fold__ [link fusion.algorithm.iteration.functions.fold `fold`]]
[def __result_of_fold__ [link fusion.algorithm.iteration.metafunctions.fold `result_of::fold`]]
[def __reverse_fold__ [link fusion.algorithm.iteration.functions.reverse_fold `reverse_fold`]]
[def __result_of_reverse_fold__ [link fusion.algorithm.iteration.metafunctions.reverse_fold `result_of::reverse_fold`]]
[def __iter_fold__ [link fusion.algorithm.iteration.functions.iter_fold `iter_fold`]]
[def __result_of_iter_fold__ [link fusion.algorithm.iteration.metafunctions.iter_fold `result_of::iter_fold`]]
[def __reverse_iter_fold__ [link fusion.algorithm.iteration.functions.reverse_iter_fold `reverse_iter_fold`]]
[def __result_of_reverse_iter_fold__ [link fusion.algorithm.iteration.metafunctions.reverse_iter_fold `result_of::reverse_iter_fold`]]
[def __accumulate__ [link fusion.algorithm.iteration.functions.accumulate `accumulate`]]
[def __result_of_accumulate__ [link fusion.algorithm.iteration.metafunctions.accumulate `result_of::accumulate`]]
[def __for_each__ [link fusion.algorithm.iteration.functions.for_each `for_each`]]
[def __result_of_for_each__ [link fusion.algorithm.iteration.metafunctions.for_each `result_of::for_each`]]
[def __any__ [link fusion.algorithm.query.functions.any `any`]]
[def __result_of_any__ [link fusion.algorithm.query.metafunctions.any `result_of::any`]]
[def __all__ [link fusion.algorithm.query.functions.all `all`]]
[def __result_of_all__ [link fusion.algorithm.query.metafunctions.all `result_of::all`]]
[def __none__ [link fusion.algorithm.query.functions.none `none`]]
[def __result_of_none__ [link fusion.algorithm.query.metafunctions.none `result_of::none`]]
[def __find__ [link fusion.algorithm.query.functions.find `find`]]
[def __result_of_find__ [link fusion.algorithm.query.metafunctions.find `result_of::find`]]
[def __find_if__ [link fusion.algorithm.query.functions.find_if `find_if`]]
[def __result_of_find_if__ [link fusion.algorithm.query.metafunctions.find_if `result_of::find_if`]]
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[def __result_of_count__ [link fusion.algorithm.query.metafunctions.count `result_of::count`]]
[def __count_if__ [link fusion.algorithm.query.functions.count_if `count_if`]]
[def __result_of_count_if__ [link fusion.algorithm.query.metafunctions.count_if `result_of::count_if`]]
[def __filter__ [link fusion.algorithm.transformation.functions.filter `filter`]]
[def __result_of_filter__ [link fusion.algorithm.transformation.metafunctions.filter `result_of::filter`]]
[def __filter_if__ [link fusion.algorithm.transformation.functions.filter_if `filter_if`]]
[def __result_of_filter_if__ [link fusion.algorithm.transformation.metafunctions.filter_if `result_of::filter_if`]]
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[def __result_of_transform__ [link fusion.algorithm.transformation.metafunctions.transform `result_of::transform`]]
[def __replace__ [link fusion.algorithm.transformation.functions.replace `replace`]]
[def __result_of_replace__ [link fusion.algorithm.transformation.metafunctions.replace `result_of::replace`]]
[def __replace_if__ [link fusion.algorithm.transformation.functions.replace_if `replace_if`]]
[def __result_of_replace_if__ [link fusion.algorithm.transformation.metafunctions.replace_if `result_of::replace_if`]]
[def __remove__ [link fusion.algorithm.transformation.functions.remove `remove`]]
[def __result_of_remove__ [link fusion.algorithm.transformation.metafunctions.remove `result_of::remove`]]
[def __remove_if__ [link fusion.algorithm.transformation.functions.remove_if `remove_if`]]
[def __result_of_remove_if__ [link fusion.algorithm.transformation.metafunctions.remove_if `result_of::remove_if`]]
[def __reverse__ [link fusion.algorithm.transformation.functions.reverse `reverse`]]
[def __result_of_reverse__ [link fusion.algorithm.transformation.metafunctions.reverse `result_of::reverse`]]
[def __clear__ [link fusion.algorithm.transformation.functions.clear `clear`]]
[def __result_of_clear__ [link fusion.algorithm.transformation.metafunctions.clear `result_of::clear`]]
[def __erase__ [link fusion.algorithm.transformation.functions.erase `erase`]]
[def __result_of_erase__ [link fusion.algorithm.transformation.metafunctions.erase `result_of::erase`]]
[def __erase_key__ [link fusion.algorithm.transformation.functions.erase_key `erase_key`]]
[def __result_of_erase_key__ [link fusion.algorithm.transformation.metafunctions.erase_key `result_of::erase_key`]]
[def __insert__ [link fusion.algorithm.transformation.functions.insert `insert`]]
[def __result_of_insert__ [link fusion.algorithm.transformation.metafunctions.insert `result_of::insert`]]
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[def __result_of_insert_range__ [link fusion.algorithm.transformation.metafunctions.insert_range `result_of::insert_range`]]
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[def __result_of_join__ [link fusion.algorithm.transformation.metafunctions.join `result_of::join`]]
[def __zip__ [link fusion.algorithm.transformation.functions.zip `zip`]]
[def __result_of_zip__ [link fusion.algorithm.transformation.metafunctions.zip `result_of::zip`]]
[def __pop_back__ [link fusion.algorithm.transformation.functions.pop_back `pop_back`]]
[def __result_of_pop_back__ [link fusion.algorithm.transformation.metafunctions.pop_back `result_of::pop_back`]]
[def __pop_front__ [link fusion.algorithm.transformation.functions.pop_front `pop_front`]]
[def __result_of_pop_front__ [link fusion.algorithm.transformation.metafunctions.pop_front `result_of::pop_front`]]
[def __push_back__ [link fusion.algorithm.transformation.functions.push_back `push_back`]]
[def __result_of_push_back__ [link fusion.algorithm.transformation.metafunctions.push_back `result_of::push_back`]]
[def __push_front__ [link fusion.algorithm.transformation.functions.push_front `push_front`]]
[def __result_of_push_front__ [link fusion.algorithm.transformation.metafunctions.push_front `result_of::push_front`]]
[def __tr1_tuple_pair__ [link fusion.tuples.pairs `TR1 and std::pair`]]
[def __tuple_get__ [link fusion.tuples.class_template_tuple.element_access `get`]]
[def __tr1_tuple_pair__ [link fusion.tuple.pairs `TR1 and std::pair`]]
[def __tuple_get__ [link fusion.tuple.class_template_tuple.element_access `get`]]
[def __callable_obj__ [link fusion.functional.concepts.callable Callable Object]]
[def __def_callable_obj__ [link fusion.functional.concepts.def_callable Deferred Callable Object]]
[def __reg_callable_obj__ [link fusion.functional.concepts.reg_callable Regular Callable Object]]
[def __poly_func_obj__ [link fusion.functional.concepts.poly Polymorphic Function Object]]
[def __functional_adapters__ [link fusion.functional.adapters functional adapters]]
[def __fused__ [link fusion.functional.adapters.fused `fused`]]
[def __fused_procedure__ [link fusion.functional.adapters.fused_procedure `fused_procedure`]]
[def __fused_function_object__ [link fusion.functional.adapters.fused_function_object `fused_function_object`]]
[def __unfused__ [link fusion.functional.adapters.unfused `unfused`]]
[def __unfused_typed__ [link fusion.functional.adapters.unfused_typed `unfused_typed`]]
[def __invoke__ [link fusion.functional.invocation.functions.invoke `invoke`]]
[def __invoke_procedure__ [link fusion.functional.invocation.functions.invoke_proc `invoke_procedure`]]
[def __invoke_function_object__ [link fusion.functional.invocation.functions.invoke_fobj `invoke_function_object`]]
[def __make_fused__ [link fusion.functional.generation.functions.mk_fused `make_fused`]]
[def __make_fused_procedure__ [link fusion.functional.generation.functions.mk_fused_proc `make_fused_procedure`]]
[def __make_fused_function_object__ [link fusion.functional.generation.functions.mk_fused_fobj `make_fused_function_object`]]
[def __make_unfused__ [link fusion.functional.generation.functions.mk_unfused `make_unfused`]]
[def __result_of_invoke__ [link fusion.functional.invocation.metafunctions.invoke `result_of::invoke`]]
[def __result_of_invoke_procedure__ [link fusion.functional.invocation.metafunctions.invoke_proc `result_of::invoke_procedure`]]
[def __result_of_invoke_function_object__ [link fusion.functional.invocation.metafunctions.invoke_fobj `result_of::invoke_function_object`]]
[def __result_of_make_fused__ [link fusion.functional.generation.metafunctions.mk_fused `make_fused`]]
[def __result_of_make_fused_procedure__ [link fusion.functional.generation.metafunctions.mk_fused_proc `make_fused_procedure`]]
[def __result_of_make_fused_function_object__ [link fusion.functional.generation.metafunctions.mk_fused_fobj `make_fused_function_object`]]
[def __result_of_make_unfused__ [link fusion.functional.generation.metafunctions.mk_unfused `make_unfused`]]
[def __recursive_inline__ [link fusion.notes.recursive_inlined_functions Recursive Inlined Functions]]
[def __overloaded_functions__ [link fusion.notes.overloaded_functions Overloaded Functions]]
@ -243,19 +325,27 @@
[def __note_boost_ref__ [link fusion.notes.boost__ref `boost::ref`]]
[def __quick_start__ [link fusion.quick_start Quick Start]]
[def __organization__ [link fusion.organization Orgainization]]
[def __organization__ [link fusion.organization Organization]]
[def __extension__ [link fusion.extension Extension]]
[def __sequence_facade__ [link fusion.extension.sequence_facade `sequence_facade`]]
[def __iterator_facade__ [link fusion.extension.iterator_facade `iterator_facade`]]
[def __adt_attribute_proxy__ [link fusion.notes.adt_attribute_proxy `adt_attribute_proxy`]]
[include preface.qbk]
[include introduction.qbk]
[include quick_start.qbk]
[include organization.qbk]
[include support.qbk]
[include iterators.qbk]
[include sequences.qbk]
[include algorithms.qbk]
[include tuples.qbk]
[include iterator.qbk]
[include sequence.qbk]
[include container.qbk]
[include view.qbk]
[include adapted.qbk]
[include algorithm.qbk]
[include tuple.qbk]
[include extension.qbk]
[include functional.qbk]
[include notes.qbk]
[include changelog.qbk]
[include acknowledgements.qbk]

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@ -1,511 +0,0 @@
/*=============================================================================
Copyright (c) 2004 Joel de Guzman
http://spirit.sourceforge.net/
Use, modification and distribution is subject to the Boost Software
License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
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<p>
Special thanks to David Abrahams, Douglas Gregor, Hartmut Kaiser, Aleksey Gurtovoy,
Peder Holt, Daniel Wallin, Jaakko Jarvi, Jeremiah Willcock, Dan Marsden, Eric
Niebler, Joao Abecasis and Andy Little. These people are instrumental in the
design and development of Fusion.
</p>
<p>
Special thanks to Ronald Garcia, the review manager and to all the people in
the boost community who participated in the review: Andreas Pokorny, Andreas
Huber, Jeff Flinn, David Abrahams, Pedro Lamarao, Larry Evans, Ryan Gallagher,
Andy Little, Gennadiy Rozental, Tobias Schwinger, Joao Abecasis, Eric Niebler,
Oleg Abrosimov, Gary Powell, Eric Friedman, Darren Cook, Martin Bonner and
Douglas Gregor.
</p>
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<dt><span class="section"><a href="algorithms/concepts.html">Concepts</a></span></dt>
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<a name="fusion.algorithms.lazy_evaluation"></a><h3>
<a name="id549240"></a>
<a href="algorithms.html#fusion.algorithms.lazy_evaluation">Lazy Evaluation</a>
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<p>
Unlike <a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a>, Fusion
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original. This is by design. Runtime efficiency is given a high priority. Like
<a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a>, and unlike
<a href="http://en.wikipedia.org/wiki/Standard_Template_Library" target="_top">STL</a>,
fusion algorithms are functional in nature such that algorithms are non mutating
(no side effects). However, due to the high cost of returning full sequences
such as vectors and lists, <span class="emphasis"><em>Views</em></span> are returned from Fusion
algorithms instead. For example, the <a href="algorithms/transformation/functions/transform.html" title="transform"><tt class="computeroutput"><span class="identifier">transform</span></tt></a> algorithm does not actually
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will apply the transform function over the sequence elements on demand. This
<span class="emphasis"><em>lazy</em></span> evaluation scheme allows us to chain as many algorithms
as we want without incurring a high runtime penalty.
</p>
<a name="fusion.algorithms.sequence_extension"></a><h3>
<a name="id549380"></a>
<a href="algorithms.html#fusion.algorithms.sequence_extension">Sequence Extension</a>
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<p>
The <span class="emphasis"><em>lazy</em></span> evaluation scheme where <a href="algorithms.html" title="Algorithms">Algorithms</a>
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such as <a href="algorithms/transformation/functions/push_back.html" title="push_back"><tt class="computeroutput"><span class="identifier">push_back</span></tt></a> to be totally generic. In
Fusion, <a href="algorithms/transformation/functions/push_back.html" title="push_back"><tt class="computeroutput"><span class="identifier">push_back</span></tt></a> is actually a generic algorithm
that works on all sequences. Given an input sequence <tt class="computeroutput"><span class="identifier">s</span></tt>
and a value <tt class="computeroutput"><span class="identifier">x</span></tt>, Fusion's <a href="algorithms/transformation/functions/push_back.html" title="push_back"><tt class="computeroutput"><span class="identifier">push_back</span></tt></a> algorithm simply returns
a <a href="sequences/views/joint_view.html" title="joint_view"><tt class="computeroutput"><span class="identifier">joint_view</span></tt></a>:
a view that holds a reference to the original sequence <tt class="computeroutput"><span class="identifier">s</span></tt>
and the value <tt class="computeroutput"><span class="identifier">x</span></tt>. Functions
that were once sequence specific and need to be implemented N times over N
different sequences are now implemented only once. That is to say that Fusion
sequences are cheaply extensible. However, an important caveat is that the
result of a sequence extending operation like <a href="algorithms/transformation/functions/push_back.html" title="push_back"><tt class="computeroutput"><span class="identifier">push_back</span></tt></a> does not retain the properties
of the original sequence such as associativity of <span class="underline">_set</span>_s.
To regain the original sequence, <a href="sequences/conversion/functions.html" title="Functions">Conversion</a>
functions are provided. You may use one of the <a href="sequences/conversion/functions.html" title="Functions">Conversion</a>
functions to convert back to the original sequence type.
</p>
<a name="fusion.algorithms.header"></a><h3>
<a name="id549592"></a>
<a href="algorithms.html#fusion.algorithms.header">Header</a>
</h3>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
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<div class="toc"><dl><dt><span class="section"><a href="concepts/polymorphic_function_object.html">Polymorphic
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<a name="fusion.algorithms.concepts.polymorphic_function_object"></a><a href="polymorphic_function_object.html" title="Polymorphic
Function Object">Polymorphic
Function Object</a></h4></div></div></div>
<a name="fusion.algorithms.concepts.polymorphic_function_object.description"></a><h5>
<a name="id549717"></a>
<a href="polymorphic_function_object.html#fusion.algorithms.concepts.polymorphic_function_object.description">Description</a>
</h5>
<p>
A type of function object with a nested metafunction <tt class="computeroutput"><span class="identifier">result</span></tt>.
<tt class="computeroutput"><span class="identifier">result</span></tt> returns the result
type of calling the function object, given the argument types.
</p>
<div class="variablelist">
<p class="title"><b>Notation</b></p>
<dl>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">F</span></tt></span></dt>
<dd>
A Polymorphic Function Object type
</dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">f</span></tt></span></dt>
<dd>
A Polymorphic Function Object
</dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">T1</span>
<span class="special">...</span><span class="identifier">TN</span></tt></span></dt>
<dd>
Arbitrary types
</dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">t1</span>
<span class="special">...</span><span class="identifier">tN</span></tt></span></dt>
<dd>
Objects with types <tt class="computeroutput"><span class="identifier">T1</span> <span class="special">...</span><span class="identifier">TN</span></tt>
</dd>
</dl>
</div>
<a name="fusion.algorithms.concepts.polymorphic_function_object.refinement_of"></a><h5>
<a name="id549893"></a>
<a href="polymorphic_function_object.html#fusion.algorithms.concepts.polymorphic_function_object.refinement_of">Refinement
of</a>
</h5>
<p>
MPL Metafunction Class
</p>
<a name="fusion.algorithms.concepts.polymorphic_function_object.expression_requirements"></a><h5>
<a name="id549926"></a>
<a href="polymorphic_function_object.html#fusion.algorithms.concepts.polymorphic_function_object.expression_requirements">Expression
requirements</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Expression</th>
<th>Return Type</th>
<th>Runtime
Complexity</th>
</tr></thead>
<tbody><tr>
<td><tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">t1</span><span class="special">,</span><EFBFBD><span class="special">...</span><span class="identifier">tN</span><span class="special">)</span></tt></td>
<td><tt class="computeroutput"><span class="identifier">F</span><span class="special">::</span><span class="identifier">result</span><span class="special">&lt;</span><span class="identifier">T1</span><span class="special">,</span><EFBFBD><span class="special">...</span><span class="identifier">TN</span><span class="special">&gt;::</span><span class="identifier">type</span></tt></td>
<td>Unspecified</td>
</tr></tbody>
</table></div>
</div>
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<a name="fusion.algorithms.iteration"></a><a href="iteration.html" title="Iteration">Iteration</a></h3></div></div></div>
<div class="toc"><dl>
<dt><span class="section"><a href="iteration/functions.html">Functions</a></span></dt>
<dt><span class="section"><a href="iteration/metafunctions.html">Metafunctions</a></span></dt>
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<p>
The iteration algorithms provide the fundamental algorithms for traversing
a sequence repeatedly applying an operation to its elements.
</p>
<a name="fusion.algorithms.iteration.header"></a><h4>
<a name="id550118"></a>
<a href="iteration.html#fusion.algorithms.iteration.header">Header</a>
</h4>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">iteration</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
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<dt><span class="section"><a href="functions/fold.html">fold</a></span></dt>
<dt><span class="section"><a href="functions/accumulate.html">accumulate</a></span></dt>
<dt><span class="section"><a href="functions/for_each.html">for_each</a></span></dt>
</dl></div>
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<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.iteration.functions.accumulate"></a><a href="accumulate.html" title="accumulate">accumulate</a></h5></div></div></div>
<a name="fusion.algorithms.iteration.functions.accumulate.description"></a><h6>
<a name="id551708"></a>
<a href="accumulate.html#fusion.algorithms.iteration.functions.accumulate.description">Description</a>
</h6>
<p>
Repeatedly applies binary <a href="../../concepts/polymorphic_function_object.html" title="Polymorphic
Function Object">Polymorphic
Function Object</a><EFBFBD><tt class="computeroutput"><span class="identifier">f</span></tt>
to each element of a sequence and the previous state. <a href="accumulate.html" title="accumulate"><tt class="computeroutput"><span class="identifier">accumulate</span></tt></a> is equivalent to
<a href="fold.html" title="fold"><tt class="computeroutput"><span class="identifier">fold</span></tt></a>.
</p>
<a name="fusion.algorithms.iteration.functions.accumulate.synopsis"></a><h6>
<a name="id551792"></a>
<a href="accumulate.html#fusion.algorithms.iteration.functions.accumulate.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">State</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">F</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/accumulate.html" title="accumulate"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">accumulate</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">State</span><span class="special">,</span> <span class="identifier">F</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">accumulate</span><span class="special">(</span>
<span class="identifier">Sequence</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">,</span> <span class="identifier">State</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">initial_state</span><span class="special">,</span> <span class="identifier">F</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">f</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id552052"></a><p class="title"><b>Table<EFBFBD>1.33.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>, <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">eN</span><EFBFBD><span class="special">....</span><span class="identifier">f</span><span class="special">(</span><span class="identifier">e2</span><span class="special">,</span><span class="identifier">f</span><span class="special">(</span><span class="identifier">e1</span><span class="special">,</span><span class="identifier">initial_state</span><span class="special">)))</span></tt> must be a valid expression for
each element <tt class="computeroutput"><span class="identifier">e1</span></tt> to
<tt class="computeroutput"><span class="identifier">eN</span></tt> in <tt class="computeroutput"><span class="identifier">seq</span></tt>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">initial_state</span></tt></td>
<td>Any
type</td>
<td>Initial state</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">f</span></tt></td>
<td>A
model of binary <a href="../../concepts/polymorphic_function_object.html" title="Polymorphic
Function Object">Polymorphic
Function Object</a>
</td>
<td>Operation's argument</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.iteration.functions.accumulate.expression_semantics"></a><h6>
<a name="id552284"></a>
<a href="accumulate.html#fusion.algorithms.iteration.functions.accumulate.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<span class="identifier">accumulate</span><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">initial_state</span><span class="special">,</span> <span class="identifier">f</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: Any type
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Equivalent to <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">eN</span><EFBFBD><span class="special">....</span><span class="identifier">f</span><span class="special">(</span><span class="identifier">e2</span><span class="special">,</span><span class="identifier">f</span><span class="special">(</span><span class="identifier">e1</span><span class="special">,</span><span class="identifier">initial_state</span><span class="special">)))</span></tt>
where <tt class="computeroutput"><span class="identifier">e1</span><EFBFBD><span class="special">...</span><span class="identifier">eN</span></tt> are the elements of <tt class="computeroutput"><span class="identifier">seq</span></tt>.
</p>
<a name="fusion.algorithms.iteration.functions.accumulate.complexity"></a><h6>
<a name="id552490"></a>
<a href="accumulate.html#fusion.algorithms.iteration.functions.accumulate.complexity">Complexity</a>
</h6>
<p>
Linear, exactly <tt class="computeroutput"><a href="../../../sequences/intrinsics/metafunctions/size.html" title="size"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">size</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">value</span></tt> applications of <tt class="computeroutput"><span class="identifier">f</span></tt>.
</p>
<a name="fusion.algorithms.iteration.functions.accumulate.header"></a><h6>
<a name="id552582"></a>
<a href="accumulate.html#fusion.algorithms.iteration.functions.accumulate.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">iteration</span><span class="special">/</span><span class="identifier">accumulate</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.iteration.functions.accumulate.example"></a><h6>
<a name="id552688"></a>
<a href="accumulate.html#fusion.algorithms.iteration.functions.accumulate.example">Example</a>
</h6>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">make_string</span>
<span class="special">{</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">State</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">apply</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="keyword">operator</span><span class="special">()(</span><span class="keyword">const</span> <span class="identifier">T</span><span class="special">&amp;</span> <span class="identifier">t</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&amp;</span> <span class="identifier">str</span><span class="special">)</span> <span class="keyword">const</span>
<span class="special">{</span>
<span class="keyword">return</span> <span class="identifier">str</span> <span class="special">+</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">lexical_cast</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&gt;(</span><span class="identifier">t</span><span class="special">);</span>
<span class="special">}</span>
<span class="special">};</span>
<span class="special">...</span>
<span class="keyword">const</span> <a href="../../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">&gt;</span> <span class="identifier">vec</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="accumulate.html" title="accumulate"><tt class="computeroutput"><span class="identifier">accumulate</span></tt></a><span class="special">(</span><span class="identifier">vec</span><span class="special">,</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">(</span><span class="string">""</span><span class="special">),</span> <span class="identifier">make_string</span><span class="special">())</span> <span class="special">==</span> <span class="string">"12"</span><span class="special">);</span>
</pre>
</div>
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<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.iteration.functions.fold"></a><a href="fold.html" title="fold">fold</a></h5></div></div></div>
<a name="fusion.algorithms.iteration.functions.fold.description"></a><h6>
<a name="id550254"></a>
<a href="fold.html#fusion.algorithms.iteration.functions.fold.description">Description</a>
</h6>
<p>
Repeatedly applies binary <a href="../../concepts/polymorphic_function_object.html" title="Polymorphic
Function Object">Polymorphic
Function Object</a><EFBFBD><tt class="computeroutput"><span class="identifier">f</span></tt>
to each element of a sequence and the previous state.
</p>
<a name="fusion.algorithms.iteration.functions.fold.synopsis"></a><h6>
<a name="id550303"></a>
<a href="fold.html#fusion.algorithms.iteration.functions.fold.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">State</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">F</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/fold.html" title="fold"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">fold</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">State</span><span class="special">,</span> <span class="identifier">F</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">fold</span><span class="special">(</span>
<span class="identifier">Sequence</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">,</span> <span class="identifier">State</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">initial_state</span><span class="special">,</span> <span class="identifier">F</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">f</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id550562"></a><p class="title"><b>Table<EFBFBD>1.32.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>,<tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e</span><span class="special">)</span></tt> must be a valid expression for each
element <tt class="computeroutput"><span class="identifier">e</span></tt> in <tt class="computeroutput"><span class="identifier">seq</span></tt>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">initial_state</span></tt></td>
<td>Any
type</td>
<td>Initial state</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">f</span></tt></td>
<td>A
model of binary <a href="../../concepts/polymorphic_function_object.html" title="Polymorphic
Function Object">Polymorphic
Function Object</a>
</td>
<td>Operation's argument</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.iteration.functions.fold.expression_semantics"></a><h6>
<a name="id550730"></a>
<a href="fold.html#fusion.algorithms.iteration.functions.fold.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<span class="identifier">fold</span><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">initial_state</span><span class="special">,</span> <span class="identifier">f</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: Any type
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Equivalent to <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">eN</span><EFBFBD><span class="special">....</span><span class="identifier">f</span><span class="special">(</span><span class="identifier">e2</span><span class="special">,</span><span class="identifier">f</span><span class="special">(</span><span class="identifier">e1</span><span class="special">,</span><span class="identifier">initial_state</span><span class="special">)))</span></tt>
where <tt class="computeroutput"><span class="identifier">e1</span><EFBFBD><span class="special">...</span><span class="identifier">eN</span></tt> are the elements of <tt class="computeroutput"><span class="identifier">seq</span></tt>.
</p>
<a name="fusion.algorithms.iteration.functions.fold.complexity"></a><h6>
<a name="id550935"></a>
<a href="fold.html#fusion.algorithms.iteration.functions.fold.complexity">Complexity</a>
</h6>
<p>
Linear, exactly <tt class="computeroutput"><a href="../../../sequences/intrinsics/metafunctions/size.html" title="size"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">size</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">value</span></tt> applications of <tt class="computeroutput"><span class="identifier">f</span></tt>.
</p>
<a name="fusion.algorithms.iteration.functions.fold.header"></a><h6>
<a name="id551027"></a>
<a href="fold.html#fusion.algorithms.iteration.functions.fold.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">iteration</span><span class="special">/</span><span class="identifier">fold</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.iteration.functions.fold.example"></a><h6>
<a name="id551132"></a>
<a href="fold.html#fusion.algorithms.iteration.functions.fold.example">Example</a>
</h6>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">make_string</span>
<span class="special">{</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">State</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">apply</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="keyword">operator</span><span class="special">()(</span><span class="keyword">const</span> <span class="identifier">T</span><span class="special">&amp;</span> <span class="identifier">t</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&amp;</span> <span class="identifier">str</span><span class="special">)</span> <span class="keyword">const</span>
<span class="special">{</span>
<span class="keyword">return</span> <span class="identifier">str</span> <span class="special">+</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">lexical_cast</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&gt;(</span><span class="identifier">t</span><span class="special">);</span>
<span class="special">}</span>
<span class="special">};</span>
<span class="special">...</span>
<span class="keyword">const</span> <a href="../../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">&gt;</span> <span class="identifier">vec</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="fold.html" title="fold"><tt class="computeroutput"><span class="identifier">fold</span></tt></a><span class="special">(</span><span class="identifier">vec</span><span class="special">,</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">(</span><span class="string">""</span><span class="special">),</span> <span class="identifier">make_string</span><span class="special">())</span> <span class="special">==</span> <span class="string">"12"</span><span class="special">);</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
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<html>
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<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.iteration.functions.for_each"></a><a href="for_each.html" title="for_each">for_each</a></h5></div></div></div>
<a name="fusion.algorithms.iteration.functions.for_each.description"></a><h6>
<a name="id553260"></a>
<a href="for_each.html#fusion.algorithms.iteration.functions.for_each.description">Description</a>
</h6>
<p>
Applies a unary function object to each element of a sequence.
</p>
<a name="fusion.algorithms.iteration.functions.for_each.synopsis"></a><h6>
<a name="id553292"></a>
<a href="for_each.html#fusion.algorithms.iteration.functions.for_each.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">F</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/for_each.html" title="for_each"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">for_each</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">F</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">for_each</span><span class="special">(</span>
<span class="identifier">Sequence</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">,</span> <span class="identifier">F</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">f</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id553494"></a><p class="title"><b>Table<EFBFBD>1.34.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>, <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e</span><span class="special">)</span></tt> must be a valid expression for each
element <tt class="computeroutput"><span class="identifier">e</span></tt> in <tt class="computeroutput"><span class="identifier">seq</span></tt>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">f</span></tt></td>
<td>A
unary function object</td>
<td>Operation's argument</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.iteration.functions.for_each.expression_semantics"></a><h6>
<a name="id553633"></a>
<a href="for_each.html#fusion.algorithms.iteration.functions.for_each.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="for_each.html" title="for_each"><tt class="computeroutput"><span class="identifier">for_each</span></tt></a><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">f</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: <tt class="computeroutput"><span class="keyword">void</span></tt>
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Calls <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e</span><span class="special">)</span></tt> for each element <tt class="computeroutput"><span class="identifier">e</span></tt>
in <tt class="computeroutput"><span class="identifier">seq</span></tt>.
</p>
<a name="fusion.algorithms.iteration.functions.for_each.complexity"></a><h6>
<a name="id553784"></a>
<a href="for_each.html#fusion.algorithms.iteration.functions.for_each.complexity">Complexity</a>
</h6>
<p>
Linear, exactly <tt class="computeroutput"><a href="../../../sequences/intrinsics/metafunctions/size.html" title="size"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">size</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">value</span></tt> applications of <tt class="computeroutput"><span class="identifier">f</span></tt>.
</p>
<a name="fusion.algorithms.iteration.functions.for_each.header"></a><h6>
<a name="id553877"></a>
<a href="for_each.html#fusion.algorithms.iteration.functions.for_each.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">iteration</span><span class="special">/</span><span class="identifier">for_each</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.iteration.functions.for_each.example"></a><h6>
<a name="id553982"></a>
<a href="for_each.html#fusion.algorithms.iteration.functions.for_each.example">Example</a>
</h6>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">increment</span>
<span class="special">{</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="keyword">void</span> <span class="keyword">operator</span><span class="special">()(</span><span class="identifier">T</span><span class="special">&amp;</span> <span class="identifier">t</span><span class="special">)</span> <span class="keyword">const</span>
<span class="special">{</span>
<span class="special">++</span><span class="identifier">t</span><span class="special">;</span>
<span class="special">}</span>
<span class="special">};</span>
<span class="special">...</span>
<a href="../../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">&gt;</span> <span class="identifier">vec</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">);</span>
<a href="for_each.html" title="for_each"><tt class="computeroutput"><span class="identifier">for_each</span></tt></a><span class="special">(</span><span class="identifier">vec</span><span class="special">,</span> <span class="identifier">increment</span><span class="special">());</span>
<span class="identifier">assert</span><span class="special">(</span><span class="identifier">vec</span> <span class="special">==</span> <a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">2</span><span class="special">,</span><span class="number">3</span><span class="special">));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
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<a name="fusion.algorithms.iteration.metafunctions"></a><a href="metafunctions.html" title="Metafunctions">Metafunctions</a></h4></div></div></div>
<div class="toc"><dl>
<dt><span class="section"><a href="metafunctions/fold.html">fold</a></span></dt>
<dt><span class="section"><a href="metafunctions/accumulate.html">accumulate</a></span></dt>
<dt><span class="section"><a href="metafunctions/for_each.html">for_each</a></span></dt>
</dl></div>
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<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.iteration.metafunctions.accumulate"></a><a href="accumulate.html" title="accumulate">accumulate</a></h5></div></div></div>
<a name="fusion.algorithms.iteration.metafunctions.accumulate.description"></a><h6>
<a name="id555076"></a>
<a href="accumulate.html#fusion.algorithms.iteration.metafunctions.accumulate.description">Description</a>
</h6>
<p>
Returns the result type of <a href="../functions/accumulate.html" title="accumulate"><tt class="computeroutput"><span class="identifier">accumulate</span></tt></a>.
</p>
<a name="fusion.algorithms.iteration.metafunctions.accumulate.synopsis"></a><h6>
<a name="id555125"></a>
<a href="accumulate.html#fusion.algorithms.iteration.metafunctions.accumulate.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">State</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">F</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">accumulate</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id555259"></a><p class="title"><b>Table<EFBFBD>1.36.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>The sequence to iterate</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">State</span></tt></td>
<td>Any
type</td>
<td>The initial state for the first application of
<tt class="computeroutput"><span class="identifier">F</span></tt>
</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">F</span></tt></td>
<td>A
model of binary <a href="../../concepts/polymorphic_function_object.html" title="Polymorphic
Function Object">Polymorphic
Function Object</a>
</td>
<td>The operation to be applied
on forward traversal</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.iteration.metafunctions.accumulate.expression_semantics"></a><h6>
<a name="id555393"></a>
<a href="accumulate.html#fusion.algorithms.iteration.metafunctions.accumulate.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="accumulate.html" title="accumulate"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">accumulate</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">State</span><span class="special">,</span> <span class="identifier">F</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: Any type
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns the result of applying
<tt class="computeroutput"><span class="identifier">accumulate</span></tt> to a sequence
of type <tt class="computeroutput"><span class="identifier">Sequence</span></tt>, with
an initial state of type <tt class="computeroutput"><span class="identifier">State</span></tt>
and binary <a href="../../concepts/polymorphic_function_object.html" title="Polymorphic
Function Object">Polymorphic
Function Object</a> of type <tt class="computeroutput"><span class="identifier">F</span></tt>.
</p>
<a name="fusion.algorithms.iteration.metafunctions.accumulate.complexity"></a><h6>
<a name="id555571"></a>
<a href="accumulate.html#fusion.algorithms.iteration.metafunctions.accumulate.complexity">Complexity</a>
</h6>
<p>
Linear, exactly <tt class="computeroutput"><a href="../../../sequences/intrinsics/metafunctions/size.html" title="size"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">size</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">value</span></tt> applications of <tt class="computeroutput"><span class="identifier">F</span></tt>.
</p>
<a name="fusion.algorithms.iteration.metafunctions.accumulate.header"></a><h6>
<a name="id555664"></a>
<a href="accumulate.html#fusion.algorithms.iteration.metafunctions.accumulate.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">iteration</span><span class="special">/</span><span class="identifier">accumulate</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="fold.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="for_each.html"><img src="../../../../images/next.png" alt="Next"></a>
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<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.iteration.metafunctions.fold"></a><a href="fold.html" title="fold">fold</a></h5></div></div></div>
<a name="fusion.algorithms.iteration.metafunctions.fold.description"></a><h6>
<a name="id554364"></a>
<a href="fold.html#fusion.algorithms.iteration.metafunctions.fold.description">Description</a>
</h6>
<p>
Returns the result type of <a href="../functions/fold.html" title="fold"><tt class="computeroutput"><span class="identifier">fold</span></tt></a>.
</p>
<a name="fusion.algorithms.iteration.metafunctions.fold.synopsis"></a><h6>
<a name="id554412"></a>
<a href="fold.html#fusion.algorithms.iteration.metafunctions.fold.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">State</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">F</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">fold</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id554546"></a><p class="title"><b>Table<EFBFBD>1.35.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>The sequence to iterate</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">State</span></tt></td>
<td>Any
type</td>
<td>The initial state for the first application of
<tt class="computeroutput"><span class="identifier">F</span></tt>
</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">F</span></tt></td>
<td>A
model of binary <a href="../../concepts/polymorphic_function_object.html" title="Polymorphic
Function Object">Polymorphic
Function Object</a>
</td>
<td>The operation to be applied
on forward traversal</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.iteration.metafunctions.fold.expression_semantics"></a><h6>
<a name="id554681"></a>
<a href="fold.html#fusion.algorithms.iteration.metafunctions.fold.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="fold.html" title="fold"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">fold</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">State</span><span class="special">,</span> <span class="identifier">F</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: Any type
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns the result of applying
<tt class="computeroutput"><span class="identifier">fold</span></tt> to a sequence of
type <tt class="computeroutput"><span class="identifier">Sequence</span></tt>, with an
initial state of type <tt class="computeroutput"><span class="identifier">State</span></tt>
and binary <a href="../../concepts/polymorphic_function_object.html" title="Polymorphic
Function Object">Polymorphic
Function Object</a> of type <tt class="computeroutput"><span class="identifier">F</span></tt>.
</p>
<a name="fusion.algorithms.iteration.metafunctions.fold.complexity"></a><h6>
<a name="id554859"></a>
<a href="fold.html#fusion.algorithms.iteration.metafunctions.fold.complexity">Complexity</a>
</h6>
<p>
Linear, exactly <tt class="computeroutput"><a href="../../../sequences/intrinsics/metafunctions/size.html" title="size"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">size</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">value</span></tt> applications of <tt class="computeroutput"><span class="identifier">F</span></tt>.
</p>
<a name="fusion.algorithms.iteration.metafunctions.fold.header"></a><h6>
<a name="id554950"></a>
<a href="fold.html#fusion.algorithms.iteration.metafunctions.fold.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">iteration</span><span class="special">/</span><span class="identifier">fold</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="../metafunctions.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="accumulate.html"><img src="../../../../images/next.png" alt="Next"></a>
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<title>for_each</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.iteration.metafunctions.for_each"></a><a href="for_each.html" title="for_each">for_each</a></h5></div></div></div>
<p>
A metafunction returning the result type of applying <a href="../functions/for_each.html" title="for_each"><tt class="computeroutput"><span class="identifier">for_each</span></tt></a> to a sequence. The
return type of <a href="../functions/for_each.html" title="for_each"><tt class="computeroutput"><span class="identifier">for_each</span></tt></a> is always <tt class="computeroutput"><span class="keyword">void</span></tt>.
</p>
<a name="fusion.algorithms.iteration.metafunctions.for_each.description"></a><h6>
<a name="id555840"></a>
<a href="for_each.html#fusion.algorithms.iteration.metafunctions.for_each.description">Description</a>
</h6>
<a name="fusion.algorithms.iteration.metafunctions.for_each.synopsis"></a><h6>
<a name="id555867"></a>
<a href="for_each.html#fusion.algorithms.iteration.metafunctions.for_each.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">F</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">for_each</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="keyword">void</span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id555988"></a><p class="title"><b>Table<EFBFBD>1.37.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">F</span></tt></td>
<td>Any
type</td>
<td>Operation's argument</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.iteration.metafunctions.for_each.expression_semantics"></a><h6>
<a name="id556084"></a>
<a href="for_each.html#fusion.algorithms.iteration.metafunctions.for_each.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="for_each.html" title="for_each"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">for_each</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">F</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: <tt class="computeroutput"><span class="keyword">void</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns the return type of
<a href="../functions/for_each.html" title="for_each"><tt class="computeroutput"><span class="identifier">for_each</span></tt></a> for a sequence of type
<tt class="computeroutput"><span class="identifier">Sequence</span></tt> and a unary
function object <tt class="computeroutput"><span class="identifier">F</span></tt>. The
return type is always <tt class="computeroutput"><span class="keyword">void</span></tt>.
</p>
<a name="fusion.algorithms.iteration.metafunctions.for_each.complexity"></a><h6>
<a name="id556257"></a>
<a href="for_each.html#fusion.algorithms.iteration.metafunctions.for_each.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.iteration.metafunctions.for_each.header"></a><h6>
<a name="id556289"></a>
<a href="for_each.html#fusion.algorithms.iteration.metafunctions.for_each.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">iteration</span><span class="special">/</span><span class="identifier">for_each</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
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<div class="titlepage"><div><div><h3 class="title">
<a name="fusion.algorithms.query"></a><a href="query.html" title="Query">Query</a></h3></div></div></div>
<div class="toc"><dl>
<dt><span class="section"><a href="query/functions.html">Functions</a></span></dt>
<dt><span class="section"><a href="query/metafunctions.html">Metafunctions</a></span></dt>
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<p>
The query algorithms provide support for searching and analyzing sequences.
</p>
<a name="fusion.algorithms.query.header"></a><h4>
<a name="id556421"></a>
<a href="query.html#fusion.algorithms.query.header">Header</a>
</h4>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">query</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
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<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
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<a name="fusion.algorithms.query.functions"></a><a href="functions.html" title="Functions">Functions</a></h4></div></div></div>
<div class="toc"><dl>
<dt><span class="section"><a href="functions/any.html">any</a></span></dt>
<dt><span class="section"><a href="functions/all.html">all</a></span></dt>
<dt><span class="section"><a href="functions/none.html">none</a></span></dt>
<dt><span class="section"><a href="functions/find.html">find</a></span></dt>
<dt><span class="section"><a href="functions/find_if.html">find_if</a></span></dt>
<dt><span class="section"><a href="functions/count.html">count</a></span></dt>
<dt><span class="section"><a href="functions/count_if.html">count_if</a></span></dt>
</dl></div>
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<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.query.functions.all"></a><a href="all.html" title="all">all</a></h5></div></div></div>
<a name="fusion.algorithms.query.functions.all.description"></a><h6>
<a name="id557682"></a>
<a href="all.html#fusion.algorithms.query.functions.all.description">Description</a>
</h6>
<p>
For a sequence <tt class="computeroutput"><span class="identifier">seq</span></tt> and
unary function object <tt class="computeroutput"><span class="identifier">f</span></tt>,
<tt class="computeroutput"><span class="identifier">all</span></tt> returns true if
<tt class="computeroutput"><span class="identifier">f</span></tt> returns true for every
element of <tt class="computeroutput"><span class="identifier">seq</span></tt>.
</p>
<a name="fusion.algorithms.query.functions.all.synopsis"></a><h6>
<a name="id557764"></a>
<a href="all.html#fusion.algorithms.query.functions.all.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">F</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/all.html" title="all"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">all</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span><span class="identifier">F</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">all</span><span class="special">(</span>
<span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">,</span> <span class="identifier">F</span> <span class="identifier">f</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id557957"></a><p class="title"><b>Table<EFBFBD>1.39.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>, <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e</span><span class="special">)</span></tt> is a valid expression, convertible
to <tt class="computeroutput"><span class="keyword">bool</span></tt>, for every element
<tt class="computeroutput"><span class="identifier">e</span></tt> in <tt class="computeroutput"><span class="identifier">seq</span></tt>
</td>
<td>The sequence
to search</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">f</span></tt></td>
<td>A
unary function object</td>
<td>The search predicate</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.query.functions.all.expression_semantics"></a><h6>
<a name="id558106"></a>
<a href="all.html#fusion.algorithms.query.functions.all.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="all.html" title="all"><tt class="computeroutput"><span class="identifier">all</span></tt></a><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">f</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: <tt class="computeroutput"><span class="keyword">bool</span></tt>
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns true if and only
if <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e</span><span class="special">)</span></tt>
evaluates to <tt class="computeroutput"><span class="keyword">true</span></tt> for every
element <tt class="computeroutput"><span class="identifier">e</span></tt> in <tt class="computeroutput"><span class="identifier">seq</span></tt>.
</p>
<a name="fusion.algorithms.query.functions.all.complexity"></a><h6>
<a name="id558269"></a>
<a href="all.html#fusion.algorithms.query.functions.all.complexity">Complexity</a>
</h6>
<p>
Linear. At most <tt class="computeroutput"><a href="../../../sequences/intrinsics/metafunctions/size.html" title="size"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">size</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">value</span></tt> comparisons.
</p>
<a name="fusion.algorithms.query.functions.all.header"></a><h6>
<a name="id558351"></a>
<a href="all.html#fusion.algorithms.query.functions.all.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">query</span><span class="special">/</span><span class="identifier">all</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.query.functions.all.example"></a><h6>
<a name="id558456"></a>
<a href="all.html#fusion.algorithms.query.functions.all.example">Example</a>
</h6>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">odd</span>
<span class="special">{</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">()(</span><span class="identifier">T</span> <span class="identifier">t</span><span class="special">)</span> <span class="keyword">const</span>
<span class="special">{</span>
<span class="keyword">return</span> <span class="identifier">t</span> <span class="special">%</span> <span class="number">2</span><span class="special">;</span>
<span class="special">}</span>
<span class="special">};</span>
<span class="special">...</span>
<span class="identifier">assert</span><span class="special">(</span><a href="all.html" title="all"><tt class="computeroutput"><span class="identifier">all</span></tt></a><span class="special">(</span><a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">3</span><span class="special">),</span> <span class="identifier">odd</span><span class="special">()));</span>
<span class="identifier">assert</span><span class="special">(!</span><a href="all.html" title="all"><tt class="computeroutput"><span class="identifier">all</span></tt></a><span class="special">(</span><a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">),</span> <span class="identifier">odd</span><span class="special">()));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
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<a accesskey="p" href="any.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="none.html"><img src="../../../../images/next.png" alt="Next"></a>
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.query.functions.any"></a><a href="any.html" title="any">any</a></h5></div></div></div>
<a name="fusion.algorithms.query.functions.any.description"></a><h6>
<a name="id556556"></a>
<a href="any.html#fusion.algorithms.query.functions.any.description">Description</a>
</h6>
<p>
For a sequence <tt class="computeroutput"><span class="identifier">seq</span></tt> and
unary function object <tt class="computeroutput"><span class="identifier">f</span></tt>,
<tt class="computeroutput"><span class="identifier">any</span></tt> returns true if
<tt class="computeroutput"><span class="identifier">f</span></tt> returns true for at
least one element of <tt class="computeroutput"><span class="identifier">seq</span></tt>.
</p>
<a name="fusion.algorithms.query.functions.any.synopsis"></a><h6>
<a name="id556637"></a>
<a href="any.html#fusion.algorithms.query.functions.any.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">F</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/any.html" title="any"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">any</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span><span class="identifier">F</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">any</span><span class="special">(</span>
<span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">,</span> <span class="identifier">F</span> <span class="identifier">f</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id556829"></a><p class="title"><b>Table<EFBFBD>1.38.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>, <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e</span><span class="special">)</span></tt> must be a valid expression, convertible
to <tt class="computeroutput"><span class="keyword">bool</span></tt>, for each element
<tt class="computeroutput"><span class="identifier">e</span></tt> in <tt class="computeroutput"><span class="identifier">seq</span></tt>
</td>
<td>The sequence
to search</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">f</span></tt></td>
<td>A
unary function object</td>
<td>The search predicate</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.query.functions.any.expression_semantics"></a><h6>
<a name="id556980"></a>
<a href="any.html#fusion.algorithms.query.functions.any.expression_semantics">Expression
semantics</a>
</h6>
<pre class="programlisting">
<a href="any.html" title="any"><tt class="computeroutput"><span class="identifier">any</span></tt></a><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">f</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: <tt class="computeroutput"><span class="keyword">bool</span></tt>
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns true if and only
if <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e</span><span class="special">)</span></tt>
evaluates to <tt class="computeroutput"><span class="keyword">true</span></tt> for some
element <tt class="computeroutput"><span class="identifier">e</span></tt> in <tt class="computeroutput"><span class="identifier">seq</span></tt>.
</p>
<a name="fusion.algorithms.query.functions.any.complexity"></a><h6>
<a name="id557142"></a>
<a href="any.html#fusion.algorithms.query.functions.any.complexity">Complexity</a>
</h6>
<p>
Linear. At most <tt class="computeroutput"><a href="../../../sequences/intrinsics/metafunctions/size.html" title="size"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">size</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">value</span></tt> comparisons.
</p>
<a name="fusion.algorithms.query.functions.any.header"></a><h6>
<a name="id557225"></a>
<a href="any.html#fusion.algorithms.query.functions.any.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">query</span><span class="special">/</span><span class="identifier">any</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.query.functions.any.example"></a><h6>
<a name="id557329"></a>
<a href="any.html#fusion.algorithms.query.functions.any.example">Example</a>
</h6>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">odd</span>
<span class="special">{</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">()(</span><span class="identifier">T</span> <span class="identifier">t</span><span class="special">)</span> <span class="keyword">const</span>
<span class="special">{</span>
<span class="keyword">return</span> <span class="identifier">t</span> <span class="special">%</span> <span class="number">2</span><span class="special">;</span>
<span class="special">}</span>
<span class="special">};</span>
<span class="special">...</span>
<span class="identifier">assert</span><span class="special">(</span><a href="any.html" title="any"><tt class="computeroutput"><span class="identifier">any</span></tt></a><span class="special">(</span><a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">),</span> <span class="identifier">odd</span><span class="special">()));</span>
<span class="identifier">assert</span><span class="special">(!</span><a href="any.html" title="any"><tt class="computeroutput"><span class="identifier">any</span></tt></a><span class="special">(</span><a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">2</span><span class="special">,</span><span class="number">4</span><span class="special">),</span> <span class="identifier">odd</span><span class="special">()));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
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<a accesskey="p" href="../functions.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="all.html"><img src="../../../../images/next.png" alt="Next"></a>
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<html>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>count</title>
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.query.functions.count"></a><a href="count.html" title="count">count</a></h5></div></div></div>
<a name="fusion.algorithms.query.functions.count.description"></a><h6>
<a name="id562093"></a>
<a href="count.html#fusion.algorithms.query.functions.count.description">Description</a>
</h6>
<p>
Returns the number of elements of a given type within a sequence.
</p>
<a name="fusion.algorithms.query.functions.count.synopsis"></a><h6>
<a name="id562124"></a>
<a href="count.html#fusion.algorithms.query.functions.count.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">T</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/count.html" title="count"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">count</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">count</span><span class="special">(</span>
<span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">,</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">t</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id562331"></a><p class="title"><b>Table<EFBFBD>1.43.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>, <tt class="computeroutput"><span class="identifier">e</span><EFBFBD><span class="special">==</span><EFBFBD><span class="identifier">t</span></tt>
must be a valid expression, convertible to <tt class="computeroutput"><span class="keyword">bool</span></tt>,
for each element <tt class="computeroutput"><span class="identifier">e</span></tt>
in <tt class="computeroutput"><span class="identifier">seq</span></tt>
</td>
<td>The
sequence to search</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">T</span></tt></td>
<td>Any
type</td>
<td>The type to count</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.query.functions.count.expression_semantics"></a><h6>
<a name="id562479"></a>
<a href="count.html#fusion.algorithms.query.functions.count.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="count.html" title="count"><tt class="computeroutput"><span class="identifier">count</span></tt></a><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">t</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: <tt class="computeroutput"><span class="keyword">int</span></tt>
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns the number of elements
of type <tt class="computeroutput"><span class="identifier">T</span></tt> and equal to
<tt class="computeroutput"><span class="identifier">t</span></tt> in <tt class="computeroutput"><span class="identifier">seq</span></tt>.
</p>
<a name="fusion.algorithms.query.functions.count.complexity"></a><h6>
<a name="id562616"></a>
<a href="count.html#fusion.algorithms.query.functions.count.complexity">Complexity</a>
</h6>
<p>
Linear. At most <tt class="computeroutput"><a href="../../../sequences/intrinsics/metafunctions/size.html" title="size"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">size</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">value</span></tt> comparisons.
</p>
<a name="fusion.algorithms.query.functions.count.header"></a><h6>
<a name="id562698"></a>
<a href="count.html#fusion.algorithms.query.functions.count.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">query</span><span class="special">/</span><span class="identifier">count</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.query.functions.count.example"></a><h6>
<a name="id562803"></a>
<a href="count.html#fusion.algorithms.query.functions.count.example">Example</a>
</h6>
<pre class="programlisting">
<span class="keyword">const</span> <a href="../../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">double</span><span class="special">,</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">&gt;</span> <span class="identifier">vec</span><span class="special">(</span><span class="number">1.0</span><span class="special">,</span><span class="number">2</span><span class="special">,</span><span class="number">3</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="count.html" title="count"><tt class="computeroutput"><span class="identifier">count</span></tt></a><span class="special">(</span><span class="identifier">vec</span><span class="special">,</span><span class="number">2</span><span class="special">)</span> <span class="special">==</span> <span class="number">1</span><span class="special">);</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="find_if.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="count_if.html"><img src="../../../../images/next.png" alt="Next"></a>
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<html>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>count_if</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.query.functions.count_if"></a><a href="count_if.html" title="count_if">count_if</a></h5></div></div></div>
<a name="fusion.algorithms.query.functions.count_if.description"></a><h6>
<a name="id563018"></a>
<a href="count_if.html#fusion.algorithms.query.functions.count_if.description">Description</a>
</h6>
<p>
Returns the number of elements within a sequence with a type for which
a given unary function object evaluates to <tt class="computeroutput"><span class="keyword">true</span></tt>.
</p>
<a name="fusion.algorithms.query.functions.count_if.synopsis"></a><h6>
<a name="id563061"></a>
<a href="count_if.html#fusion.algorithms.query.functions.count_if.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">F</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/count_if.html" title="count_if"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">count_if</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">F</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">count_if</span><span class="special">(</span>
<span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">,</span> <span class="identifier">F</span> <span class="identifier">f</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id563256"></a><p class="title"><b>Table<EFBFBD>1.44.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>, <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e</span><span class="special">)</span></tt> is a valid expression, convertible
to <tt class="computeroutput"><span class="keyword">bool</span></tt>, for each element
<tt class="computeroutput"><span class="identifier">e</span></tt> in <tt class="computeroutput"><span class="identifier">seq</span></tt>
</td>
<td>The sequence
to search</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">f</span></tt></td>
<td>A
unary function object</td>
<td>The search predicate</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.query.functions.count_if.expression_semantics"></a><h6>
<a name="id563405"></a>
<a href="count_if.html#fusion.algorithms.query.functions.count_if.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="count_if.html" title="count_if"><tt class="computeroutput"><span class="identifier">count_if</span></tt></a><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">f</span><span class="special">)</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: <tt class="computeroutput"><span class="keyword">int</span></tt>
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns the number of elements
in <tt class="computeroutput"><span class="identifier">seq</span></tt> where <tt class="computeroutput"><span class="identifier">f</span></tt> evaluates to <tt class="computeroutput"><span class="keyword">true</span></tt>.
</p>
<a name="fusion.algorithms.query.functions.count_if.complexity"></a><h6>
<a name="id563542"></a>
<a href="count_if.html#fusion.algorithms.query.functions.count_if.complexity">Complexity</a>
</h6>
<p>
Linear. At most <tt class="computeroutput"><a href="../../../sequences/intrinsics/metafunctions/size.html" title="size"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">size</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">value</span></tt> comparisons.
</p>
<a name="fusion.algorithms.query.functions.count_if.header"></a><h6>
<a name="id563624"></a>
<a href="count_if.html#fusion.algorithms.query.functions.count_if.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">query</span><span class="special">/</span><span class="identifier">count_if</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.query.functions.count_if.example"></a><h6>
<a name="id563730"></a>
<a href="count_if.html#fusion.algorithms.query.functions.count_if.example">Example</a>
</h6>
<pre class="programlisting">
<span class="keyword">const</span> <a href="../../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">&gt;</span> <span class="identifier">vec</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">,</span><span class="number">3</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="count_if.html" title="count_if"><tt class="computeroutput"><span class="identifier">count_if</span></tt></a><span class="special">(</span><span class="identifier">vec</span><span class="special">,</span><span class="identifier">odd</span><span class="special">())</span> <span class="special">==</span> <span class="number">2</span><span class="special">);</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="count.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="../metafunctions.html"><img src="../../../../images/next.png" alt="Next"></a>
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<html>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>find</title>
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.query.functions.find"></a><a href="find.html" title="find">find</a></h5></div></div></div>
<a name="fusion.algorithms.query.functions.find.description"></a><h6>
<a name="id559978"></a>
<a href="find.html#fusion.algorithms.query.functions.find.description">Description</a>
</h6>
<p>
Finds the first element of a given type within a sequence.
</p>
<a name="fusion.algorithms.query.functions.find.synopsis"></a><h6>
<a name="id560010"></a>
<a href="find.html#fusion.algorithms.query.functions.find.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">T</span>
<span class="special">&gt;</span>
<span class="emphasis"><em>unspecified</em></span> <span class="identifier">find</span><span class="special">(</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">);</span>
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">T</span>
<span class="special">&gt;</span>
<span class="emphasis"><em>unspecified</em></span> <span class="identifier">find</span><span class="special">(</span><span class="identifier">Sequence</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id560208"></a><p class="title"><b>Table<EFBFBD>1.41.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>The sequence to search</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">T</span></tt></td>
<td>Any
type</td>
<td>The type to search for</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.query.functions.find.expression_semantics"></a><h6>
<a name="id560302"></a>
<a href="find.html#fusion.algorithms.query.functions.find.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="find.html" title="find"><tt class="computeroutput"><span class="identifier">find</span></tt></a><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;(</span><span class="identifier">seq</span><span class="special">)</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of the same iterator
category as the iterators of <tt class="computeroutput"><span class="identifier">seq</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns an iterator to the
first element of <tt class="computeroutput"><span class="identifier">seq</span></tt>
of type <tt class="computeroutput"><span class="identifier">T</span></tt>, or <tt class="computeroutput"><a href="../../../sequences/intrinsics/functions/end.html" title="end"><tt class="computeroutput"><span class="identifier">end</span></tt></a><span class="special">(</span><span class="identifier">seq</span><span class="special">)</span></tt> if there is no such element. Equivalent
to <tt class="computeroutput"><a href="find_if.html" title="find_if"><tt class="computeroutput"><span class="identifier">find_if</span></tt></a><span class="special">&lt;</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">is_same</span><span class="special">&lt;</span><span class="identifier">_</span><span class="special">,</span><EFBFBD><span class="identifier">T</span><span class="special">&gt;</span><EFBFBD><span class="special">&gt;(</span><span class="identifier">seq</span><span class="special">)</span></tt>
</p>
<a name="fusion.algorithms.query.functions.find.complexity"></a><h6>
<a name="id560548"></a>
<a href="find.html#fusion.algorithms.query.functions.find.complexity">Complexity</a>
</h6>
<p>
Linear. At most <tt class="computeroutput"><a href="../../../sequences/intrinsics/metafunctions/size.html" title="size"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">size</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">value</span></tt> comparisons.
</p>
<a name="fusion.algorithms.query.functions.find.header"></a><h6>
<a name="id560630"></a>
<a href="find.html#fusion.algorithms.query.functions.find.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">query</span><span class="special">/</span><span class="identifier">find</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.query.functions.find.example"></a><h6>
<a name="id560735"></a>
<a href="find.html#fusion.algorithms.query.functions.find.example">Example</a>
</h6>
<pre class="programlisting">
<span class="keyword">const</span> <a href="../../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">char</span><span class="special">,</span><span class="keyword">int</span><span class="special">&gt;</span> <span class="identifier">vec</span><span class="special">(</span><span class="char">'a'</span><span class="special">,</span><span class="char">'0'</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(*</span><a href="find.html" title="find"><tt class="computeroutput"><span class="identifier">find</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&gt;(</span><span class="identifier">vec</span><span class="special">)</span> <span class="special">==</span> <span class="char">'0'</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="find.html" title="find"><tt class="computeroutput"><span class="identifier">find</span></tt></a><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;(</span><span class="identifier">vec</span><span class="special">)</span> <span class="special">==</span> <a href="../../../sequences/intrinsics/functions/end.html" title="end"><tt class="computeroutput"><span class="identifier">end</span></tt></a><span class="special">(</span><span class="identifier">vec</span><span class="special">));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
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<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.query.functions.find_if"></a><a href="find_if.html" title="find_if">find_if</a></h5></div></div></div>
<p>
Finds the first element within a sequence with a type for which a given
MPL Lambda Expression evaluates to <tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">true_</span></tt>.
</p>
<a name="fusion.algorithms.query.functions.find_if.description"></a><h6>
<a name="id561053"></a>
<a href="find_if.html#fusion.algorithms.query.functions.find_if.description">Description</a>
</h6>
<a name="fusion.algorithms.query.functions.find_if.synopsis"></a><h6>
<a name="id561080"></a>
<a href="find_if.html#fusion.algorithms.query.functions.find_if.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">F</span>
<span class="special">&gt;</span>
<span class="emphasis"><em>unspecified</em></span> <span class="identifier">find_if</span><span class="special">(</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">);</span>
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">F</span>
<span class="special">&gt;</span>
<span class="emphasis"><em>unspecified</em></span> <span class="identifier">find_if</span><span class="special">(</span><span class="identifier">Sequence</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id561279"></a><p class="title"><b>Table<EFBFBD>1.42.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>The sequence to search</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">F</span></tt></td>
<td>A
unary MPL Lambda Expression</td>
<td>The search predicate</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.query.functions.find_if.expression_semantics"></a><h6>
<a name="id561373"></a>
<a href="find_if.html#fusion.algorithms.query.functions.find_if.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="find_if.html" title="find_if"><tt class="computeroutput"><span class="identifier">find_if</span></tt></a><span class="special">&lt;</span><span class="identifier">F</span><span class="special">&gt;(</span><span class="identifier">seq</span><span class="special">)</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: An iterator of the same
iterator category as the iterators of <tt class="computeroutput"><span class="identifier">seq</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns the first element
of <tt class="computeroutput"><span class="identifier">seq</span></tt> for which MPL
Lambda Expression <tt class="computeroutput"><span class="identifier">F</span></tt> evaluates
to <tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">true_</span></tt>, or <tt class="computeroutput"><a href="../../../sequences/intrinsics/functions/end.html" title="end"><tt class="computeroutput"><span class="identifier">end</span></tt></a><span class="special">(</span><span class="identifier">seq</span><span class="special">)</span></tt>
if there is no such element.
</p>
<a name="fusion.algorithms.query.functions.find_if.complexity"></a><h6>
<a name="id561566"></a>
<a href="find_if.html#fusion.algorithms.query.functions.find_if.complexity">Complexity</a>
</h6>
<p>
Linear. At most <tt class="computeroutput"><a href="../../../sequences/intrinsics/metafunctions/size.html" title="size"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">size</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">value</span></tt> comparisons.
</p>
<a name="fusion.algorithms.query.functions.find_if.header"></a><h6>
<a name="id561648"></a>
<a href="find_if.html#fusion.algorithms.query.functions.find_if.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">query</span><span class="special">/</span><span class="identifier">find_if</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.query.functions.find_if.example"></a><h6>
<a name="id561753"></a>
<a href="find_if.html#fusion.algorithms.query.functions.find_if.example">Example</a>
</h6>
<pre class="programlisting">
<span class="keyword">const</span> <a href="../../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">double</span><span class="special">,</span><span class="keyword">int</span><span class="special">&gt;</span> <span class="identifier">vec</span><span class="special">(</span><span class="number">1.0</span><span class="special">,</span><span class="number">2</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(*</span><a href="find_if.html" title="find_if"><tt class="computeroutput"><span class="identifier">find_if</span></tt></a><span class="special">&lt;</span><span class="identifier">is_integral</span><span class="special">&lt;</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">_</span><span class="special">&gt;</span> <span class="special">&gt;(</span><span class="identifier">vec</span><span class="special">)</span> <span class="special">==</span> <span class="number">2</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="find_if.html" title="find_if"><tt class="computeroutput"><span class="identifier">find_if</span></tt></a><span class="special">&lt;</span><span class="identifier">is_class</span><span class="special">&lt;</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">_</span><span class="special">&gt;</span> <span class="special">&gt;(</span><span class="identifier">vec</span><span class="special">)</span> <span class="special">==</span> <a href="../../../sequences/intrinsics/functions/end.html" title="end"><tt class="computeroutput"><span class="identifier">end</span></tt></a><span class="special">(</span><span class="identifier">vec</span><span class="special">));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="find.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="count.html"><img src="../../../../images/next.png" alt="Next"></a>
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.query.functions.none"></a><a href="none.html" title="none">none</a></h5></div></div></div>
<a name="fusion.algorithms.query.functions.none.description"></a><h6>
<a name="id558809"></a>
<a href="none.html#fusion.algorithms.query.functions.none.description">Description</a>
</h6>
<p>
For a sequence <tt class="computeroutput"><span class="identifier">seq</span></tt> and
unary function object <tt class="computeroutput"><span class="identifier">f</span></tt>,
<tt class="computeroutput"><span class="identifier">none</span></tt> returns true if
<tt class="computeroutput"><span class="identifier">f</span></tt> returns false for every
element of <tt class="computeroutput"><span class="identifier">seq</span></tt>.
</p>
<a name="fusion.algorithms.query.functions.none.synopsis"></a><h6>
<a name="id558890"></a>
<a href="none.html#fusion.algorithms.query.functions.none.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">F</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/none.html" title="none"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">none</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span><span class="identifier">F</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">none</span><span class="special">(</span>
<span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">,</span> <span class="identifier">F</span> <span class="identifier">f</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id559083"></a><p class="title"><b>Table<EFBFBD>1.40.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>, <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e</span><span class="special">)</span></tt> is a valid expression, convertible
to <tt class="computeroutput"><span class="keyword">bool</span></tt>, for every element
<tt class="computeroutput"><span class="identifier">e</span></tt> in <tt class="computeroutput"><span class="identifier">seq</span></tt>
</td>
<td>The sequence
to search</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">f</span></tt></td>
<td>A
unary function object</td>
<td>The search predicate</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.query.functions.none.expression_semantics"></a><h6>
<a name="id559234"></a>
<a href="none.html#fusion.algorithms.query.functions.none.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="none.html" title="none"><tt class="computeroutput"><span class="identifier">none</span></tt></a><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">f</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: <tt class="computeroutput"><span class="keyword">bool</span></tt>
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns true if and only
if <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e</span><span class="special">)</span></tt>
evaluates to <tt class="computeroutput"><span class="keyword">false</span></tt> for every
element <tt class="computeroutput"><span class="identifier">e</span></tt> in <tt class="computeroutput"><span class="identifier">seq</span></tt>. Result equivalent to <tt class="computeroutput"><span class="special">!</span><span class="identifier">any</span><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span><EFBFBD><span class="identifier">f</span><span class="special">)</span></tt>.
</p>
<a name="fusion.algorithms.query.functions.none.complexity"></a><h6>
<a name="id559437"></a>
<a href="none.html#fusion.algorithms.query.functions.none.complexity">Complexity</a>
</h6>
<p>
Linear. At most <tt class="computeroutput"><a href="../../../sequences/intrinsics/metafunctions/size.html" title="size"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">size</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">value</span></tt> comparisons.
</p>
<a name="fusion.algorithms.query.functions.none.header"></a><h6>
<a name="id559520"></a>
<a href="none.html#fusion.algorithms.query.functions.none.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">query</span><span class="special">/</span><span class="identifier">none</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.query.functions.none.example"></a><h6>
<a name="id559624"></a>
<a href="none.html#fusion.algorithms.query.functions.none.example">Example</a>
</h6>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">odd</span>
<span class="special">{</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">()(</span><span class="identifier">T</span> <span class="identifier">t</span><span class="special">)</span> <span class="keyword">const</span>
<span class="special">{</span>
<span class="keyword">return</span> <span class="identifier">t</span> <span class="special">%</span> <span class="number">2</span><span class="special">;</span>
<span class="special">}</span>
<span class="special">};</span>
<span class="special">...</span>
<span class="identifier">assert</span><span class="special">(</span><a href="none.html" title="none"><tt class="computeroutput"><span class="identifier">none</span></tt></a><span class="special">(</span><a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">2</span><span class="special">,</span><span class="number">4</span><span class="special">),</span> <span class="identifier">odd</span><span class="special">()));</span>
<span class="identifier">assert</span><span class="special">(!</span><a href="none.html" title="none"><tt class="computeroutput"><span class="identifier">none</span></tt></a><span class="special">(</span><a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">),</span> <span class="identifier">odd</span><span class="special">()));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
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<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.algorithms.query.metafunctions"></a><a href="metafunctions.html" title="Metafunctions">Metafunctions</a></h4></div></div></div>
<div class="toc"><dl>
<dt><span class="section"><a href="metafunctions/any.html">any</a></span></dt>
<dt><span class="section"><a href="metafunctions/all.html">all</a></span></dt>
<dt><span class="section"><a href="metafunctions/none.html">none</a></span></dt>
<dt><span class="section"><a href="metafunctions/find.html">find</a></span></dt>
<dt><span class="section"><a href="metafunctions/find_if.html">find_if</a></span></dt>
<dt><span class="section"><a href="metafunctions/count.html">count</a></span></dt>
<dt><span class="section"><a href="metafunctions/count_if.html">count_if</a></span></dt>
</dl></div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.query.metafunctions.all"></a><a href="all.html" title="all">all</a></h5></div></div></div>
<a name="fusion.algorithms.query.metafunctions.all.description"></a><h6>
<a name="id564572"></a>
<a href="all.html#fusion.algorithms.query.metafunctions.all.description">Description</a>
</h6>
<p>
A metafunction returning the result type of <a href="../functions/all.html" title="all"><tt class="computeroutput"><span class="identifier">all</span></tt></a>.
</p>
<a name="fusion.algorithms.query.metafunctions.all.synopsis"></a><h6>
<a name="id564620"></a>
<a href="all.html#fusion.algorithms.query.metafunctions.all.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">F</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">all</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="keyword">bool</span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id564740"></a><p class="title"><b>Table<EFBFBD>1.46.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">F</span></tt></td>
<td>A
model of unary <a href="../../concepts/polymorphic_function_object.html" title="Polymorphic
Function Object">Polymorphic
Function Object</a>
</td>
<td>Operation's argument</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.query.metafunctions.all.expression_semantics"></a><h6>
<a name="id564843"></a>
<a href="all.html#fusion.algorithms.query.metafunctions.all.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="all.html" title="all"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">all</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">F</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: <tt class="computeroutput"><span class="keyword">bool</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns the return type of
<a href="../functions/all.html" title="all"><tt class="computeroutput"><span class="identifier">all</span></tt></a>
given a sequence of type <tt class="computeroutput"><span class="identifier">Sequence</span></tt>
and a unary <a href="../../concepts/polymorphic_function_object.html" title="Polymorphic
Function Object">Polymorphic
Function Object</a> of type <tt class="computeroutput"><span class="identifier">F</span></tt>.
The return type is always <tt class="computeroutput"><span class="keyword">bool</span></tt>.
</p>
<a name="fusion.algorithms.query.metafunctions.all.complexity"></a><h6>
<a name="id565023"></a>
<a href="all.html#fusion.algorithms.query.metafunctions.all.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.query.metafunctions.all.header"></a><h6>
<a name="id565054"></a>
<a href="all.html#fusion.algorithms.query.metafunctions.all.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">query</span><span class="special">/</span><span class="identifier">all</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="any.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="none.html"><img src="../../../../images/next.png" alt="Next"></a>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.query.metafunctions.any"></a><a href="any.html" title="any">any</a></h5></div></div></div>
<a name="fusion.algorithms.query.metafunctions.any.description"></a><h6>
<a name="id563967"></a>
<a href="any.html#fusion.algorithms.query.metafunctions.any.description">Description</a>
</h6>
<p>
A metafunction returning the result type of <a href="../functions/any.html" title="any"><tt class="computeroutput"><span class="identifier">any</span></tt></a>.
</p>
<a name="fusion.algorithms.query.metafunctions.any.synopsis"></a><h6>
<a name="id564014"></a>
<a href="any.html#fusion.algorithms.query.metafunctions.any.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">F</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">any</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="keyword">bool</span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id564134"></a><p class="title"><b>Table<EFBFBD>1.45.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">F</span></tt></td>
<td>A
model of unary <a href="../../concepts/polymorphic_function_object.html" title="Polymorphic
Function Object">Polymorphic
Function Object</a>
</td>
<td>Operation's argument</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.query.metafunctions.any.expression_semantics"></a><h6>
<a name="id564236"></a>
<a href="any.html#fusion.algorithms.query.metafunctions.any.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="any.html" title="any"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">any</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">F</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: <tt class="computeroutput"><span class="keyword">bool</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns the return type of
<a href="../functions/any.html" title="any"><tt class="computeroutput"><span class="identifier">any</span></tt></a>
given a sequence of type <tt class="computeroutput"><span class="identifier">Sequence</span></tt>
and a unary <a href="../../concepts/polymorphic_function_object.html" title="Polymorphic
Function Object">Polymorphic
Function Object</a> of type <tt class="computeroutput"><span class="identifier">F</span></tt>.
The return type is always <tt class="computeroutput"><span class="keyword">bool</span></tt>.
</p>
<a name="fusion.algorithms.query.metafunctions.any.complexity"></a><h6>
<a name="id564417"></a>
<a href="any.html#fusion.algorithms.query.metafunctions.any.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.query.metafunctions.any.header"></a><h6>
<a name="id564448"></a>
<a href="any.html#fusion.algorithms.query.metafunctions.any.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">query</span><span class="special">/</span><span class="identifier">any</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="../metafunctions.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="all.html"><img src="../../../../images/next.png" alt="Next"></a>
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<html>
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.query.metafunctions.count"></a><a href="count.html" title="count">count</a></h5></div></div></div>
<a name="fusion.algorithms.query.metafunctions.count.description"></a><h6>
<a name="id567110"></a>
<a href="count.html#fusion.algorithms.query.metafunctions.count.description">Description</a>
</h6>
<p>
A metafunction that returns the result type of <tt class="computeroutput"><span class="identifier">count</span></tt>
given the sequence and search types.
</p>
<a name="fusion.algorithms.query.metafunctions.count.synopsis"></a><h6>
<a name="id567153"></a>
<a href="count.html#fusion.algorithms.query.metafunctions.count.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">T</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">count</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="keyword">int</span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id567273"></a><p class="title"><b>Table<EFBFBD>1.50.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>heading
Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">T</span></tt></td>
<td>Any
type</td>
<td>Operation's argument</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.query.metafunctions.count.expression_semantics"></a><h6>
<a name="id567368"></a>
<a href="count.html#fusion.algorithms.query.metafunctions.count.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="count.html" title="count"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">count</span></tt></a><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: <tt class="computeroutput"><span class="keyword">int</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns the return type of
<a href="../functions/count.html" title="count"><tt class="computeroutput"><span class="identifier">count</span></tt></a>. The return type is always
<tt class="computeroutput"><span class="keyword">int</span></tt>.
</p>
<a name="fusion.algorithms.query.metafunctions.count.complexity"></a><h6>
<a name="id567507"></a>
<a href="count.html#fusion.algorithms.query.metafunctions.count.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.query.metafunctions.count.header"></a><h6>
<a name="id567537"></a>
<a href="count.html#fusion.algorithms.query.metafunctions.count.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">query</span><span class="special">/</span><span class="identifier">count</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="find_if.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="count_if.html"><img src="../../../../images/next.png" alt="Next"></a>
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<a accesskey="p" href="count.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="../../transformation.html"><img src="../../../../images/next.png" alt="Next"></a>
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<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.query.metafunctions.count_if"></a><a href="count_if.html" title="count_if">count_if</a></h5></div></div></div>
<a name="fusion.algorithms.query.metafunctions.count_if.description"></a><h6>
<a name="id567663"></a>
<a href="count_if.html#fusion.algorithms.query.metafunctions.count_if.description">Description</a>
</h6>
<p>
A metafunction that returns the result type of <tt class="computeroutput"><span class="identifier">count_if</span></tt>
given the sequence and predicate types.
</p>
<a name="fusion.algorithms.query.metafunctions.count_if.synopsis"></a><h6>
<a name="id567706"></a>
<a href="count_if.html#fusion.algorithms.query.metafunctions.count_if.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">Pred</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">count_if</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="keyword">int</span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id567826"></a><p class="title"><b>Table<EFBFBD>1.51.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">Pred</span></tt></td>
<td>A
unary function object</td>
<td>Operation's argument</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.query.metafunctions.count_if.expression_semantics"></a><h6>
<a name="id567921"></a>
<a href="count_if.html#fusion.algorithms.query.metafunctions.count_if.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="count_if.html" title="count_if"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">count_if</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">Pred</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: <tt class="computeroutput"><span class="keyword">int</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns the return type of
<a href="../functions/count_if.html" title="count_if"><tt class="computeroutput"><span class="identifier">count_if</span></tt></a>. The return type is
always <tt class="computeroutput"><span class="keyword">int</span></tt>.
</p>
<a name="fusion.algorithms.query.metafunctions.count_if.complexity"></a><h6>
<a name="id568072"></a>
<a href="count_if.html#fusion.algorithms.query.metafunctions.count_if.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.query.metafunctions.count_if.header"></a><h6>
<a name="id568103"></a>
<a href="count_if.html#fusion.algorithms.query.metafunctions.count_if.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">query</span><span class="special">/</span><span class="identifier">count_if</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="count.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="../../transformation.html"><img src="../../../../images/next.png" alt="Next"></a>
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>find</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.query.metafunctions.find"></a><a href="find.html" title="find">find</a></h5></div></div></div>
<a name="fusion.algorithms.query.metafunctions.find.description"></a><h6>
<a name="id565788"></a>
<a href="find.html#fusion.algorithms.query.metafunctions.find.description">Description</a>
</h6>
<p>
Returns the result type of <tt class="computeroutput"><span class="identifier">find</span></tt>,
given the sequence and search types.
</p>
<a name="fusion.algorithms.query.metafunctions.find.synopsis"></a><h6>
<a name="id565830"></a>
<a href="find.html#fusion.algorithms.query.metafunctions.find.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">T</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">find</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id565948"></a><p class="title"><b>Table<EFBFBD>1.48.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>Model
of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">T</span></tt></td>
<td>Any
type</td>
<td>Operation's argument</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.query.metafunctions.find.expression_semantics"></a><h6>
<a name="id566042"></a>
<a href="find.html#fusion.algorithms.query.metafunctions.find.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="find.html" title="find"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">find</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of the same iterator
category as the iterators of <tt class="computeroutput"><span class="identifier">Sequence</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns an iterator to the
first element of type <tt class="computeroutput"><span class="identifier">T</span></tt>
in <tt class="computeroutput"><span class="identifier">Sequence</span></tt>, or <tt class="computeroutput"><a href="../../../sequences/intrinsics/metafunctions/end.html" title="end"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">end</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">type</span></tt> if there is no such element.
</p>
<a name="fusion.algorithms.query.metafunctions.find.complexity"></a><h6>
<a name="id566239"></a>
<a href="find.html#fusion.algorithms.query.metafunctions.find.complexity">Complexity</a>
</h6>
<p>
Linear, at most <tt class="computeroutput"><a href="../../../sequences/intrinsics/metafunctions/size.html" title="size"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">size</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">value</span></tt> comparisons.
</p>
<a name="fusion.algorithms.query.metafunctions.find.header"></a><h6>
<a name="id566321"></a>
<a href="find.html#fusion.algorithms.query.metafunctions.find.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">query</span><span class="special">/</span><span class="identifier">find</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="none.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="find_if.html"><img src="../../../../images/next.png" alt="Next"></a>
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<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>find_if</title>
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.query.metafunctions.find_if"></a><a href="find_if.html" title="find_if">find_if</a></h5></div></div></div>
<a name="fusion.algorithms.query.metafunctions.find_if.description"></a><h6>
<a name="id566448"></a>
<a href="find_if.html#fusion.algorithms.query.metafunctions.find_if.description">Description</a>
</h6>
<p>
Returns the result type of <tt class="computeroutput"><span class="identifier">find_if</span></tt>
given the sequence and predicate types.
</p>
<a name="fusion.algorithms.query.metafunctions.find_if.synopsis"></a><h6>
<a name="id566491"></a>
<a href="find_if.html#fusion.algorithms.query.metafunctions.find_if.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">Pred</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">find_if</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id566609"></a><p class="title"><b>Table<EFBFBD>1.49.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">Pred</span></tt></td>
<td>A
model of MPL Lambda Expression</td>
<td>Operation's arguments</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.query.metafunctions.find_if.expression_semantics"></a><h6>
<a name="id566704"></a>
<a href="find_if.html#fusion.algorithms.query.metafunctions.find_if.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="find_if.html" title="find_if"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">find_if</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">Pred</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of the same iterator
category as the iterators of <tt class="computeroutput"><span class="identifier">Sequence</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns an iterator to the
first element in <tt class="computeroutput"><span class="identifier">Sequence</span></tt>
for which <tt class="computeroutput"><span class="identifier">Pred</span></tt> evaluates
to true. Returns <tt class="computeroutput"><a href="../../../sequences/intrinsics/metafunctions/end.html" title="end"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">end</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">type</span></tt> if there is no such element.
</p>
<a name="fusion.algorithms.query.metafunctions.find_if.complexity"></a><h6>
<a name="id566902"></a>
<a href="find_if.html#fusion.algorithms.query.metafunctions.find_if.complexity">Complexity</a>
</h6>
<p>
Linear. At most <tt class="computeroutput"><a href="../../../sequences/intrinsics/metafunctions/size.html" title="size"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">size</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">value</span></tt> comparisons.
</p>
<a name="fusion.algorithms.query.metafunctions.find_if.header"></a><h6>
<a name="id566986"></a>
<a href="find_if.html#fusion.algorithms.query.metafunctions.find_if.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">query</span><span class="special">/</span><span class="identifier">find_if</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="find.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="count.html"><img src="../../../../images/next.png" alt="Next"></a>
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<html>
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
<link rel="start" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.query.metafunctions.none"></a><a href="none.html" title="none">none</a></h5></div></div></div>
<a name="fusion.algorithms.query.metafunctions.none.description"></a><h6>
<a name="id565178"></a>
<a href="none.html#fusion.algorithms.query.metafunctions.none.description">Description</a>
</h6>
<p>
A metafunction returning the result type of <a href="../functions/none.html" title="none"><tt class="computeroutput"><span class="identifier">none</span></tt></a>.
</p>
<a name="fusion.algorithms.query.metafunctions.none.synopsis"></a><h6>
<a name="id565227"></a>
<a href="none.html#fusion.algorithms.query.metafunctions.none.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">F</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">none</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="keyword">bool</span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id565347"></a><p class="title"><b>Table<EFBFBD>1.47.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">F</span></tt></td>
<td>A
model of unary <a href="../../concepts/polymorphic_function_object.html" title="Polymorphic
Function Object">Polymorphic
Function Object</a>
</td>
<td>Operation's argument</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.query.metafunctions.none.expression_semantics"></a><h6>
<a name="id565449"></a>
<a href="none.html#fusion.algorithms.query.metafunctions.none.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="none.html" title="none"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">none</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">F</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: <tt class="computeroutput"><span class="keyword">bool</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns the return type of
<a href="../functions/none.html" title="none"><tt class="computeroutput"><span class="identifier">none</span></tt></a> given a sequence of type
<tt class="computeroutput"><span class="identifier">Sequence</span></tt> and a unary
<a href="../../concepts/polymorphic_function_object.html" title="Polymorphic
Function Object">Polymorphic
Function Object</a> of type <tt class="computeroutput"><span class="identifier">F</span></tt>.
The return type is always <tt class="computeroutput"><span class="keyword">bool</span></tt>.
</p>
<a name="fusion.algorithms.query.metafunctions.none.complexity"></a><h6>
<a name="id565630"></a>
<a href="none.html#fusion.algorithms.query.metafunctions.none.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.query.metafunctions.none.header"></a><h6>
<a name="id565661"></a>
<a href="none.html#fusion.algorithms.query.metafunctions.none.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">query</span><span class="special">/</span><span class="identifier">none</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
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<div class="titlepage"><div><div><h3 class="title">
<a name="fusion.algorithms.transformation"></a><a href="transformation.html" title="Transformation">Transformation</a></h3></div></div></div>
<div class="toc"><dl>
<dt><span class="section"><a href="transformation/functions.html">Functions</a></span></dt>
<dt><span class="section"><a href="transformation/metafunctions.html">Metafunctions</a></span></dt>
</dl></div>
<p>
The transformation algorithms create new sequences out of existing sequences
by performing some sort of transformation. In reality the new sequences are
views onto the data in the original sequences.
</p>
<div class="note"><table border="0" summary="Note">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../images/note.png"></td>
<th align="left">Note</th>
</tr>
<tr><td colspan="2" align="left" valign="top"><p>
As the transformation algorithms return views onto their input arguments,
it is important that the lifetime of the input arguments is greater than
the period during which you wish to use the results.
</p></td></tr>
</table></div>
<a name="fusion.algorithms.transformation.header"></a><h4>
<a name="id568251"></a>
<a href="transformation.html#fusion.algorithms.transformation.header">Header</a>
</h4>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
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<dt><span class="section"><a href="functions/filter.html">filter</a></span></dt>
<dt><span class="section"><a href="functions/filter_if.html">filter_if</a></span></dt>
<dt><span class="section"><a href="functions/transform.html">transform</a></span></dt>
<dt><span class="section"><a href="functions/replace.html">replace</a></span></dt>
<dt><span class="section"><a href="functions/replace_if.html">replace_if</a></span></dt>
<dt><span class="section"><a href="functions/remove.html">remove</a></span></dt>
<dt><span class="section"><a href="functions/remove_if.html">remove_if</a></span></dt>
<dt><span class="section"><a href="functions/reverse.html">reverse</a></span></dt>
<dt><span class="section"><a href="functions/clear.html">clear</a></span></dt>
<dt><span class="section"><a href="functions/erase.html">erase</a></span></dt>
<dt><span class="section"><a href="functions/erase_key.html">erase_key</a></span></dt>
<dt><span class="section"><a href="functions/insert.html">insert</a></span></dt>
<dt><span class="section"><a href="functions/insert_range.html">insert_range</a></span></dt>
<dt><span class="section"><a href="functions/join.html">join</a></span></dt>
<dt><span class="section"><a href="functions/zip.html">zip</a></span></dt>
<dt><span class="section"><a href="functions/pop_back.html">pop_back</a></span></dt>
<dt><span class="section"><a href="functions/pop_front.html">pop_front</a></span></dt>
<dt><span class="section"><a href="functions/push_back.html">push_back</a></span></dt>
<dt><span class="section"><a href="functions/push_front.html">push_front</a></span></dt>
</dl></div>
</div>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.functions.clear"></a><a href="clear.html" title="clear">clear</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.functions.clear.description"></a><h6>
<a name="id576605"></a>
<a href="clear.html#fusion.algorithms.transformation.functions.clear.description">Description</a>
</h6>
<p>
<a href="clear.html" title="clear"><tt class="computeroutput"><span class="identifier">clear</span></tt></a> returns an empty sequence.
</p>
<a name="fusion.algorithms.transformation.functions.clear.synposis"></a><h6>
<a name="id576653"></a>
<a href="clear.html#fusion.algorithms.transformation.functions.clear.synposis">Synposis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/clear.html" title="clear"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">clear</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">clear</span><span class="special">(</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id576809"></a><p class="title"><b>Table<EFBFBD>1.61.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody><tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr></tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.functions.clear.expression_semantics"></a><h6>
<a name="id576885"></a>
<a href="clear.html#fusion.algorithms.transformation.functions.clear.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="clear.html" title="clear"><tt class="computeroutput"><span class="identifier">clear</span></tt></a><span class="special">(</span><span class="identifier">seq</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Expression Semantics</b></span>: Returns a sequence
with no elements.
</p>
<a name="fusion.algorithms.transformation.functions.clear.complexity"></a><h6>
<a name="id576981"></a>
<a href="clear.html#fusion.algorithms.transformation.functions.clear.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.transformation.functions.clear.header"></a><h6>
<a name="id577013"></a>
<a href="clear.html#fusion.algorithms.transformation.functions.clear.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">clear</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.transformation.functions.clear.example"></a><h6>
<a name="id577118"></a>
<a href="clear.html#fusion.algorithms.transformation.functions.clear.example">Example</a>
</h6>
<pre class="programlisting">
<span class="identifier">assert</span><span class="special">(</span><a href="clear.html" title="clear"><tt class="computeroutput"><span class="identifier">clear</span></tt></a><span class="special">(</span><a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">,</span><span class="number">3</span><span class="special">))</span> <span class="special">==</span> <a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">());</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
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<html>
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<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.functions.erase"></a><a href="erase.html" title="erase">erase</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.functions.erase.description"></a><h6>
<a name="id577282"></a>
<a href="erase.html#fusion.algorithms.transformation.functions.erase.description">Description</a>
</h6>
<p>
Returns a new sequence, containing all the elements of the original except
those at a specified iterator, or between two iterators.
</p>
<a name="fusion.algorithms.transformation.functions.erase.synposis"></a><h6>
<a name="id577316"></a>
<a href="erase.html#fusion.algorithms.transformation.functions.erase.synposis">Synposis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">First</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/erase.html" title="erase"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">erase</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">,</span> <span class="identifier">First</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">erase</span><span class="special">(</span>
<span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">,</span> <span class="identifier">First</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">it1</span><span class="special">);</span>
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">First</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">Last</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/erase.html" title="erase"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">erase</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">,</span> <span class="identifier">First</span><span class="special">,</span> <span class="identifier">Last</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">erase</span><span class="special">(</span>
<span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">,</span> <span class="identifier">First</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">it1</span><span class="special">,</span> <span class="identifier">Last</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">it2</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id577777"></a><p class="title"><b>Table<EFBFBD>1.62.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameters</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">it1</span></tt></td>
<td>A
model of <a href="../../../iterators/concepts/forward_iterator.html" title="Forward
Iterator">Forward
Iterator</a>
</td>
<td>Iterator into <tt class="computeroutput"><span class="identifier">seq</span></tt>
</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">it2</span></tt></td>
<td>A
model of <a href="../../../iterators/concepts/forward_iterator.html" title="Forward
Iterator">Forward
Iterator</a>
</td>
<td>Iterator into <tt class="computeroutput"><span class="identifier">seq</span></tt>
after <tt class="computeroutput"><span class="identifier">it1</span></tt>
</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.functions.erase.expression_semantics"></a><h6>
<a name="id577935"></a>
<a href="erase.html#fusion.algorithms.transformation.functions.erase.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="erase.html" title="erase"><tt class="computeroutput"><span class="identifier">erase</span></tt></a><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">pos</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a new sequence, containing
all the elements of <tt class="computeroutput"><span class="identifier">seq</span></tt>
except the element at <tt class="computeroutput"><span class="identifier">pos</span></tt>.
</p>
<pre class="programlisting">
<a href="erase.html" title="erase"><tt class="computeroutput"><span class="identifier">erase</span></tt></a><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">first</span><span class="special">,</span> <span class="identifier">last</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a new sequence, with
all the elements of <tt class="computeroutput"><span class="identifier">seq</span></tt>,
in their original order, except those in the range [<tt class="computeroutput"><span class="identifier">first</span></tt>,<tt class="computeroutput"><span class="identifier">last</span></tt>).
</p>
<a name="fusion.algorithms.transformation.functions.erase.complexity"></a><h6>
<a name="id578185"></a>
<a href="erase.html#fusion.algorithms.transformation.functions.erase.complexity">Complexity</a>
</h6>
<p>
Constant. Returns a view which is lazily evaluated.
</p>
<a name="fusion.algorithms.transformation.functions.erase.header"></a><h6>
<a name="id578216"></a>
<a href="erase.html#fusion.algorithms.transformation.functions.erase.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">erase</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.transformation.functions.erase.example"></a><h6>
<a name="id578322"></a>
<a href="erase.html#fusion.algorithms.transformation.functions.erase.example">Example</a>
</h6>
<pre class="programlisting">
<span class="keyword">const</span> <a href="../../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">double</span><span class="special">,</span> <span class="keyword">char</span><span class="special">&gt;</span> <span class="identifier">vec</span><span class="special">(</span><span class="number">1</span><span class="special">,</span> <span class="number">2.0</span><span class="special">,</span> <span class="char">'c'</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="erase.html" title="erase"><tt class="computeroutput"><span class="identifier">erase</span></tt></a><span class="special">(</span><span class="identifier">vec</span><span class="special">,</span> <a href="../../../iterators/functions/next.html" title="next"><tt class="computeroutput"><span class="identifier">next</span></tt></a><span class="special">(</span><a href="../../../sequences/intrinsics/functions/begin.html" title="begin"><tt class="computeroutput"><span class="identifier">begin</span></tt></a><span class="special">(</span><span class="identifier">vec</span><span class="special">)))</span> <span class="special">==</span> <a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span> <span class="char">'c'</span><span class="special">));</span>
<span class="identifier">assert</span><span class="special">(</span><a href="erase.html" title="erase"><tt class="computeroutput"><span class="identifier">erase</span></tt></a><span class="special">(</span><span class="identifier">vec</span><span class="special">,</span> <a href="../../../iterators/functions/next.html" title="next"><tt class="computeroutput"><span class="identifier">next</span></tt></a><span class="special">(</span><a href="../../../sequences/intrinsics/functions/begin.html" title="begin"><tt class="computeroutput"><span class="identifier">begin</span></tt></a><span class="special">(</span><span class="identifier">vec</span><span class="special">)),</span> <a href="../../../sequences/intrinsics/functions/end.html" title="end"><tt class="computeroutput"><span class="identifier">end</span></tt></a><span class="special">(</span><span class="identifier">vec</span><span class="special">))</span> <span class="special">==</span> <a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
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<a accesskey="p" href="clear.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="erase_key.html"><img src="../../../../images/next.png" alt="Next"></a>
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.functions.erase_key"></a><a href="erase_key.html" title="erase_key">erase_key</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.functions.erase_key.description"></a><h6>
<a name="id578780"></a>
<a href="erase_key.html#fusion.algorithms.transformation.functions.erase_key.description">Description</a>
</h6>
<p>
For an <a href="../../../sequences/concepts/associative_sequence.html" title="Associative
Sequence">Associative
Sequence</a><EFBFBD><tt class="computeroutput"><span class="identifier">seq</span></tt>,
returns a <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a> containing all the elements of the original except those
with a given key.
</p>
<a name="fusion.algorithms.transformation.functions.erase_key.synposis"></a><h6>
<a name="id578841"></a>
<a href="erase_key.html#fusion.algorithms.transformation.functions.erase_key.synposis">Synposis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Key</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <span class="identifier">result_of</span><span class="special">::</span><span class="identifier">erase_key</span><span class="special">&lt;</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">,</span> <span class="identifier">Key</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">erase_key</span><span class="special">(</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id579013"></a><p class="title"><b>Table<EFBFBD>1.63.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/associative_sequence.html" title="Associative
Sequence">Associative
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">Key</span></tt></td>
<td>Any
type</td>
<td>Key to erase</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.functions.erase_key.expression_semantics"></a><h6>
<a name="id579109"></a>
<a href="erase_key.html#fusion.algorithms.transformation.functions.erase_key.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="erase_key.html" title="erase_key"><tt class="computeroutput"><span class="identifier">erase_key</span></tt></a><span class="special">&lt;</span><span class="identifier">Key</span><span class="special">&gt;(</span><span class="identifier">seq</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a new sequence, containing
all the elements of <tt class="computeroutput"><span class="identifier">seq</span></tt>,
except those with key <tt class="computeroutput"><span class="identifier">Key</span></tt>.
</p>
<a name="fusion.algorithms.transformation.functions.erase_key.complexity"></a><h6>
<a name="id579236"></a>
<a href="erase_key.html#fusion.algorithms.transformation.functions.erase_key.complexity">Complexity</a>
</h6>
<p>
Constant. Returns a view which is lazily evaluated.
</p>
<a name="fusion.algorithms.transformation.functions.erase_key.header"></a><h6>
<a name="id579267"></a>
<a href="erase_key.html#fusion.algorithms.transformation.functions.erase_key.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">erase_key</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.transformation.functions.erase_key.example"></a><h6>
<a name="id579373"></a>
<a href="erase_key.html#fusion.algorithms.transformation.functions.erase_key.example">Example</a>
</h6>
<pre class="programlisting">
<span class="identifier">assert</span><span class="special">(</span><a href="erase_key.html" title="erase_key"><tt class="computeroutput"><span class="identifier">erase_key</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&gt;(</span><a href="../../../sequences/generation/functions/make_map.html" title="make_map"><tt class="computeroutput"><span class="identifier">make_map</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">long</span><span class="special">&gt;(</span><span class="char">'a'</span><span class="special">,</span> <span class="char">'b'</span><span class="special">))</span> <span class="special">==</span> <a href="../../../sequences/generation/functions/make_map.html" title="make_map"><tt class="computeroutput"><span class="identifier">make_map</span></tt></a><span class="special">&lt;</span><span class="keyword">long</span><span class="special">&gt;(</span><span class="char">'b'</span><span class="special">));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="erase.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="insert.html"><img src="../../../../images/next.png" alt="Next"></a>
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<title>filter</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
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<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.functions.filter"></a><a href="filter.html" title="filter">filter</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.functions.filter.description"></a><h6>
<a name="id568389"></a>
<a href="filter.html#fusion.algorithms.transformation.functions.filter.description">Description</a>
</h6>
<p>
For a given sequence, filter returns a new sequences containing only
the elements of a specified type.
</p>
<a name="fusion.algorithms.transformation.functions.filter.synopsis"></a><h6>
<a name="id568422"></a>
<a href="filter.html#fusion.algorithms.transformation.functions.filter.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">T</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/filter.html" title="filter"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">filter</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">,</span> <span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">filter</span><span class="special">(</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id568606"></a><p class="title"><b>Table<EFBFBD>1.52.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">T</span></tt></td>
<td>Any
type</td>
<td>The type to retain</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.functions.filter.expression_semantics"></a><h6>
<a name="id568700"></a>
<a href="filter.html#fusion.algorithms.transformation.functions.filter.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="filter.html" title="filter"><tt class="computeroutput"><span class="identifier">filter</span></tt></a><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;(</span><span class="identifier">seq</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a sequence containing
all the elements of <tt class="computeroutput"><span class="identifier">seq</span></tt>
of type <tt class="computeroutput"><span class="identifier">T</span></tt>. Equivalent
to <tt class="computeroutput"><a href="filter_if.html" title="filter_if"><tt class="computeroutput"><span class="identifier">filter_if</span></tt></a><span class="special">&lt;</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">same_type</span><span class="special">&lt;</span><span class="identifier">_</span><span class="special">,</span><EFBFBD><span class="identifier">T</span><span class="special">&gt;</span><EFBFBD><span class="special">&gt;(</span><span class="identifier">seq</span><span class="special">)</span></tt>.
</p>
<a name="fusion.algorithms.transformation.functions.filter.complexity"></a><h6>
<a name="id568910"></a>
<a href="filter.html#fusion.algorithms.transformation.functions.filter.complexity">Complexity</a>
</h6>
<p>
Constant. Returns a view which is lazily evaluated.
</p>
<a name="fusion.algorithms.transformation.functions.filter.header"></a><h6>
<a name="id568942"></a>
<a href="filter.html#fusion.algorithms.transformation.functions.filter.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">filter</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.transformation.functions.filter.example"></a><h6>
<a name="id569048"></a>
<a href="filter.html#fusion.algorithms.transformation.functions.filter.example">Example</a>
</h6>
<pre class="programlisting">
<span class="keyword">const</span> <a href="../../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">long</span><span class="special">,</span><span class="keyword">long</span><span class="special">&gt;</span> <span class="identifier">vec</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">,</span><span class="number">3</span><span class="special">,</span><span class="number">4</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="filter.html" title="filter"><tt class="computeroutput"><span class="identifier">filter</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&gt;(</span><span class="identifier">vec</span><span class="special">)</span> <span class="special">==</span> <a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.functions.filter_if"></a><a href="filter_if.html" title="filter_if">filter_if</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.functions.filter_if.description"></a><h6>
<a name="id569318"></a>
<a href="filter_if.html#fusion.algorithms.transformation.functions.filter_if.description">Description</a>
</h6>
<p>
For a given sequence, <a href="filter_if.html" title="filter_if"><tt class="computeroutput"><span class="identifier">filter_if</span></tt></a> returns a new sequences
containing only the elements with types for which a given MPL Lambda
Expression evaluates to <tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">true_</span></tt>.
</p>
<a name="fusion.algorithms.transformation.functions.filter_if.synopsis"></a><h6>
<a name="id569398"></a>
<a href="filter_if.html#fusion.algorithms.transformation.functions.filter_if.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Pred</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/filter_if.html" title="filter_if"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">filter_if</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">,</span> <span class="identifier">Pred</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">filter_if</span><span class="special">(</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id569584"></a><p class="title"><b>Table<EFBFBD>1.53.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">Pred</span></tt></td>
<td>A
unary MPL Lambda Expression</td>
<td>The predicate to filter
by</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.functions.filter_if.expression_semantics"></a><h6>
<a name="id569681"></a>
<a href="filter_if.html#fusion.algorithms.transformation.functions.filter_if.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="filter_if.html" title="filter_if"><tt class="computeroutput"><span class="identifier">filter_if</span></tt></a><span class="special">&lt;</span><span class="identifier">Pred</span><span class="special">&gt;(</span><span class="identifier">seq</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a sequence containing
all the elements of <tt class="computeroutput"><span class="identifier">seq</span></tt>
with types for which <tt class="computeroutput"><span class="identifier">Pred</span></tt>
evaluates to <tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">true_</span></tt>. The order of the retained elements
is the same as in the original sequence.
</p>
<a name="fusion.algorithms.transformation.functions.filter_if.complexity"></a><h6>
<a name="id569840"></a>
<a href="filter_if.html#fusion.algorithms.transformation.functions.filter_if.complexity">Complexity</a>
</h6>
<p>
Constant. Returns a view which is lazily evaluated.
</p>
<a name="fusion.algorithms.transformation.functions.filter_if.header"></a><h6>
<a name="id569871"></a>
<a href="filter_if.html#fusion.algorithms.transformation.functions.filter_if.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">filter_if</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.transformation.functions.filter_if.example"></a><h6>
<a name="id569978"></a>
<a href="filter_if.html#fusion.algorithms.transformation.functions.filter_if.example">Example</a>
</h6>
<pre class="programlisting">
<span class="keyword">const</span> <a href="../../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">double</span><span class="special">,</span><span class="keyword">double</span><span class="special">&gt;</span> <span class="identifier">vec</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">,</span><span class="number">3.0</span><span class="special">,</span><span class="number">4.0</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="filter_if.html" title="filter_if"><tt class="computeroutput"><span class="identifier">filter_if</span></tt></a><span class="special">&lt;</span><span class="identifier">is_integral</span><span class="special">&lt;</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">_</span><span class="special">&gt;</span> <span class="special">&gt;(</span><span class="identifier">vec</span><span class="special">)</span> <span class="special">==</span> <a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="filter.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="transform.html"><img src="../../../../images/next.png" alt="Next"></a>
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<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>insert</title>
<link rel="stylesheet" href="../../../../boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
<link rel="start" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.functions.insert"></a><a href="insert.html" title="insert">insert</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.functions.insert.description"></a><h6>
<a name="id579579"></a>
<a href="insert.html#fusion.algorithms.transformation.functions.insert.description">Description</a>
</h6>
<p>
Returns a new sequence with all the elements of the original, an a new
element inserted the position described by a given iterator.
</p>
<a name="fusion.algorithms.transformation.functions.insert.synposis"></a><h6>
<a name="id579613"></a>
<a href="insert.html#fusion.algorithms.transformation.functions.insert.synposis">Synposis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">Pos</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">T</span>
<span class="special">&gt;</span>
<span class="emphasis"><em>unspecified</em></span> <span class="identifier">insert</span><span class="special">(</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">,</span> <span class="identifier">Pos</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">pos</span><span class="special">,</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">t</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id579802"></a><p class="title"><b>Table<EFBFBD>1.64.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">pos</span></tt></td>
<td>A
model of <a href="../../../iterators/concepts/forward_iterator.html" title="Forward
Iterator">Forward
Iterator</a>
</td>
<td>The position to insert at</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">t</span></tt></td>
<td>Any
type</td>
<td>The value to insert</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.functions.insert.expression_semantics"></a><h6>
<a name="id579927"></a>
<a href="insert.html#fusion.algorithms.transformation.functions.insert.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="insert.html" title="insert"><tt class="computeroutput"><span class="identifier">insert</span></tt></a><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">p</span><span class="special">,</span> <span class="identifier">t</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a new sequence, containing
all the elements of <tt class="computeroutput"><span class="identifier">seq</span></tt>,
in their original order, and a new element with the type and value of
<tt class="computeroutput"><span class="identifier">t</span></tt> inserted at iterator
<tt class="computeroutput"><span class="identifier">pos</span></tt>.
</p>
<a name="fusion.algorithms.transformation.functions.insert.complexity"></a><h6>
<a name="id580076"></a>
<a href="insert.html#fusion.algorithms.transformation.functions.insert.complexity">Complexity</a>
</h6>
<p>
Constant. Returns a view which is lazily evaluated.
</p>
<a name="fusion.algorithms.transformation.functions.insert.header"></a><h6>
<a name="id580108"></a>
<a href="insert.html#fusion.algorithms.transformation.functions.insert.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">insert</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.transformation.functions.insert.example"></a><h6>
<a name="id580214"></a>
<a href="insert.html#fusion.algorithms.transformation.functions.insert.example">Example</a>
</h6>
<pre class="programlisting">
<span class="keyword">const</span> <a href="../../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">&gt;</span> <span class="identifier">vec</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="insert.html" title="insert"><tt class="computeroutput"><span class="identifier">insert</span></tt></a><span class="special">(</span><span class="identifier">vec</span><span class="special">,</span> <a href="../../../iterators/functions/next.html" title="next"><tt class="computeroutput"><span class="identifier">next</span></tt></a><span class="special">(</span><a href="../../../sequences/intrinsics/functions/begin.html" title="begin"><tt class="computeroutput"><span class="identifier">begin</span></tt></a><span class="special">(</span><span class="identifier">vec</span><span class="special">)),</span> <span class="number">3</span><span class="special">)</span> <span class="special">==</span> <a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">3</span><span class="special">,</span><span class="number">2</span><span class="special">));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="erase_key.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="insert_range.html"><img src="../../../../images/next.png" alt="Next"></a>
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<a accesskey="p" href="insert.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="join.html"><img src="../../../../images/next.png" alt="Next"></a>
</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.functions.insert_range"></a><a href="insert_range.html" title="insert_range">insert_range</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.functions.insert_range.description"></a><h6>
<a name="id580508"></a>
<a href="insert_range.html#fusion.algorithms.transformation.functions.insert_range.description">Description</a>
</h6>
<p>
Returns a new sequence with another sequence inserted at a specified
iterator.
</p>
<a name="fusion.algorithms.transformation.functions.insert_range.synposis"></a><h6>
<a name="id580542"></a>
<a href="insert_range.html#fusion.algorithms.transformation.functions.insert_range.synposis">Synposis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">Pos</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">Range</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/insert_range.html" title="insert_range"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">insert_range</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">,</span> <span class="identifier">Pos</span><span class="special">,</span> <span class="identifier">Range</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">insert_range</span><span class="special">(</span>
<span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">,</span> <span class="identifier">Pos</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">pos</span><span class="special">,</span> <span class="identifier">Range</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">range</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id580815"></a><p class="title"><b>Table<EFBFBD>1.65.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">pos</span></tt></td>
<td>A
model of <a href="../../../iterators/concepts/forward_iterator.html" title="Forward
Iterator">Forward
Iterator</a>
</td>
<td>The position to insert at</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">range</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Range to insert</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.functions.insert_range.expression_semantics"></a><h6>
<a name="id580947"></a>
<a href="insert_range.html#fusion.algorithms.transformation.functions.insert_range.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="insert.html" title="insert"><tt class="computeroutput"><span class="identifier">insert</span></tt></a><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">pos</span><span class="special">,</span> <span class="identifier">range</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a new sequence, containing
all the elements of <tt class="computeroutput"><span class="identifier">seq</span></tt>,
and the elements of <tt class="computeroutput"><span class="identifier">range</span></tt>
inserted at iterator <tt class="computeroutput"><span class="identifier">pos</span></tt>.
All elements retaining their ordering from the orignal sequences.
</p>
<a name="fusion.algorithms.transformation.functions.insert_range.complexity"></a><h6>
<a name="id581099"></a>
<a href="insert_range.html#fusion.algorithms.transformation.functions.insert_range.complexity">Complexity</a>
</h6>
<p>
Constant. Returns a view which is lazily evaluated.
</p>
<a name="fusion.algorithms.transformation.functions.insert_range.header"></a><h6>
<a name="id581130"></a>
<a href="insert_range.html#fusion.algorithms.transformation.functions.insert_range.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">insert_range</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.transformation.functions.insert_range.example"></a><h6>
<a name="id581237"></a>
<a href="insert_range.html#fusion.algorithms.transformation.functions.insert_range.example">Example</a>
</h6>
<pre class="programlisting">
<span class="keyword">const</span> <a href="../../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">&gt;</span> <span class="identifier">vec</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="insert_range.html" title="insert_range"><tt class="computeroutput"><span class="identifier">insert_range</span></tt></a><span class="special">(</span><span class="identifier">vec</span><span class="special">,</span> <a href="../../../iterators/functions/next.html" title="next"><tt class="computeroutput"><span class="identifier">next</span></tt></a><span class="special">(</span><a href="../../../sequences/intrinsics/functions/begin.html" title="begin"><tt class="computeroutput"><span class="identifier">begin</span></tt></a><span class="special">(</span><span class="identifier">vec</span><span class="special">)),</span> <a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">3</span><span class="special">,</span><span class="number">4</span><span class="special">))</span> <span class="special">==</span> <a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">3</span><span class="special">,</span><span class="number">4</span><span class="special">,</span><span class="number">2</span><span class="special">));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="insert.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="join.html"><img src="../../../../images/next.png" alt="Next"></a>
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>join</title>
<link rel="stylesheet" href="../../../../boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
<link rel="start" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.functions.join"></a><a href="join.html" title="join">join</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.functions.join.description"></a><h6>
<a name="id581567"></a>
<a href="join.html#fusion.algorithms.transformation.functions.join.description">Description</a>
</h6>
<p>
Takes 2 sequences and returns a sequence containing the elements of the
first followed by the elements of the second.
</p>
<a name="fusion.algorithms.transformation.functions.join.synopsis"></a><h6>
<a name="id581601"></a>
<a href="join.html#fusion.algorithms.transformation.functions.join.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">LhSequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">RhSequence</span><span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/join.html" title="join"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">join</span></tt></a><span class="special">&lt;</span><span class="identifier">LhSequence</span><span class="special">,</span> <span class="identifier">RhSequence</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">join</span><span class="special">(</span><span class="identifier">LhSequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">lhs</span><span class="special">,</span> <span class="identifier">RhSequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">rhs</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id581808"></a><p class="title"><b>Table<EFBFBD>1.66.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">lhs</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">rhs</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.functions.join.expression_semantics"></a><h6>
<a name="id581909"></a>
<a href="join.html#fusion.algorithms.transformation.functions.join.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="join.html" title="join"><tt class="computeroutput"><span class="identifier">join</span></tt></a><span class="special">(</span><span class="identifier">lhs</span><span class="special">,</span> <span class="identifier">rhs</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a sequence containing
all the elements of <tt class="computeroutput"><span class="identifier">lhs</span></tt>
followed by all the elements of <tt class="computeroutput"><span class="identifier">rhs</span></tt>.
The order of th elements is preserved.
</p>
<a name="fusion.algorithms.transformation.functions.join.complexity"></a><h6>
<a name="id582037"></a>
<a href="join.html#fusion.algorithms.transformation.functions.join.complexity">Complexity</a>
</h6>
<p>
Constant. Returns a view which is lazily evaluated.
</p>
<a name="fusion.algorithms.transformation.functions.join.header"></a><h6>
<a name="id582068"></a>
<a href="join.html#fusion.algorithms.transformation.functions.join.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">join</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.transformation.functions.join.example"></a><h6>
<a name="id582174"></a>
<a href="join.html#fusion.algorithms.transformation.functions.join.example">Example</a>
</h6>
<pre class="programlisting">
<a href="../../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">char</span><span class="special">&gt;</span> <span class="identifier">v1</span><span class="special">(</span><span class="number">1</span><span class="special">,</span> <span class="char">'a'</span><span class="special">);</span>
<a href="../../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">char</span><span class="special">&gt;</span> <span class="identifier">v2</span><span class="special">(</span><span class="number">2</span><span class="special">,</span> <span class="char">'b'</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="join.html" title="join"><tt class="computeroutput"><span class="identifier">join</span></tt></a><span class="special">(</span><span class="identifier">v1</span><span class="special">,</span> <span class="identifier">v2</span><span class="special">)</span> <span class="special">==</span> <a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="char">'a'</span><span class="special">,</span><span class="number">2</span><span class="special">,</span><span class="char">'b'</span><span class="special">));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="insert_range.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="zip.html"><img src="../../../../images/next.png" alt="Next"></a>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>pop_back</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.functions.pop_back"></a><a href="pop_back.html" title="pop_back">pop_back</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.functions.pop_back.description"></a><h6>
<a name="id583692"></a>
<a href="pop_back.html#fusion.algorithms.transformation.functions.pop_back.description">Description</a>
</h6>
<p>
Returns a new sequence, with the last element of the original removed.
</p>
<a name="fusion.algorithms.transformation.functions.pop_back.synopsis"></a><h6>
<a name="id583724"></a>
<a href="pop_back.html#fusion.algorithms.transformation.functions.pop_back.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/pop_back.html" title="pop_back"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">pop_back</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">pop_back</span><span class="special">(</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id583880"></a><p class="title"><b>Table<EFBFBD>1.68.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody><tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr></tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.functions.pop_back.expression_semantics"></a><h6>
<a name="id583956"></a>
<a href="pop_back.html#fusion.algorithms.transformation.functions.pop_back.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="pop_back.html" title="pop_back"><tt class="computeroutput"><span class="identifier">pop_back</span></tt></a><span class="special">(</span><span class="identifier">seq</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a new sequence containing
all the elements of <tt class="computeroutput"><span class="identifier">seq</span></tt>,
except the last element. The elements in the new sequence are in the
same order as they were in <tt class="computeroutput"><span class="identifier">seq</span></tt>.
</p>
<a name="fusion.algorithms.transformation.functions.pop_back.complexity"></a><h6>
<a name="id584073"></a>
<a href="pop_back.html#fusion.algorithms.transformation.functions.pop_back.complexity">Complexity</a>
</h6>
<p>
Constant. Returns a view which is lazily evaluated.
</p>
<a name="fusion.algorithms.transformation.functions.pop_back.header"></a><h6>
<a name="id584104"></a>
<a href="pop_back.html#fusion.algorithms.transformation.functions.pop_back.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">pop_back</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.transformation.functions.pop_back.example"></a><h6>
<a name="id584210"></a>
<a href="pop_back.html#fusion.algorithms.transformation.functions.pop_back.example">Example</a>
</h6>
<pre class="programlisting">
<span class="identifier">assert</span><span class="special">(</span><span class="identifier">___pop_back__</span><span class="special">(</span><a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">,</span><span class="number">3</span><span class="special">))</span> <span class="special">==</span> <a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="zip.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="pop_front.html"><img src="../../../../images/next.png" alt="Next"></a>
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.functions.pop_front"></a><a href="pop_front.html" title="pop_front">pop_front</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.functions.pop_front.description"></a><h6>
<a name="id584385"></a>
<a href="pop_front.html#fusion.algorithms.transformation.functions.pop_front.description">Description</a>
</h6>
<p>
Returns a new sequence, with the first element of the original removed.
</p>
<a name="fusion.algorithms.transformation.functions.pop_front.synopsis"></a><h6>
<a name="id584418"></a>
<a href="pop_front.html#fusion.algorithms.transformation.functions.pop_front.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/pop_front.html" title="pop_front"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">pop_front</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">pop_front</span><span class="special">(</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id584575"></a><p class="title"><b>Table<EFBFBD>1.69.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody><tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr></tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.functions.pop_front.expression_semantics"></a><h6>
<a name="id584651"></a>
<a href="pop_front.html#fusion.algorithms.transformation.functions.pop_front.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="pop_front.html" title="pop_front"><tt class="computeroutput"><span class="identifier">pop_front</span></tt></a><span class="special">(</span><span class="identifier">seq</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a new sequence containing
all the elements of <tt class="computeroutput"><span class="identifier">seq</span></tt>,
except the first element. The elements in the new sequence are in the
same order as they were in <tt class="computeroutput"><span class="identifier">seq</span></tt>.
</p>
<a name="fusion.algorithms.transformation.functions.pop_front.complexity"></a><h6>
<a name="id584769"></a>
<a href="pop_front.html#fusion.algorithms.transformation.functions.pop_front.complexity">Complexity</a>
</h6>
<p>
Constant. Returns a view which is lazily evaluated.
</p>
<a name="fusion.algorithms.transformation.functions.pop_front.header"></a><h6>
<a name="id584799"></a>
<a href="pop_front.html#fusion.algorithms.transformation.functions.pop_front.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">pop_front</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.transformation.functions.pop_front.example"></a><h6>
<a name="id584906"></a>
<a href="pop_front.html#fusion.algorithms.transformation.functions.pop_front.example">Example</a>
</h6>
<pre class="programlisting">
<span class="identifier">assert</span><span class="special">(</span><a href="pop_front.html" title="pop_front"><tt class="computeroutput"><span class="identifier">pop_front</span></tt></a><span class="special">(</span><a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">,</span><span class="number">3</span><span class="special">))</span> <span class="special">==</span> <a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">2</span><span class="special">,</span><span class="number">3</span><span class="special">));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="pop_back.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="push_back.html"><img src="../../../../images/next.png" alt="Next"></a>
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>push_back</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.functions.push_back"></a><a href="push_back.html" title="push_back">push_back</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.functions.push_back.description"></a><h6>
<a name="id585088"></a>
<a href="push_back.html#fusion.algorithms.transformation.functions.push_back.description">Description</a>
</h6>
<p>
Returns a new sequence with an element added at the end.
</p>
<a name="fusion.algorithms.transformation.functions.push_back.synopsis"></a><h6>
<a name="id585121"></a>
<a href="push_back.html#fusion.algorithms.transformation.functions.push_back.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">T</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/push_back.html" title="push_back"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">push_back</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">push_back</span><span class="special">(</span>
<span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">,</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">t</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id585329"></a><p class="title"><b>Table<EFBFBD>1.70.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">t</span></tt></td>
<td>Any
type</td>
<td>The value to add to the end</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.functions.push_back.expression_semantics"></a><h6>
<a name="id585426"></a>
<a href="push_back.html#fusion.algorithms.transformation.functions.push_back.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="push_back.html" title="push_back"><tt class="computeroutput"><span class="identifier">push_back</span></tt></a><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">t</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a new sequence, containing
all the elements of <tt class="computeroutput"><span class="identifier">seq</span></tt>,
and new element <tt class="computeroutput"><span class="identifier">t</span></tt> appended
to the end. The elements are in the same order as they were in <tt class="computeroutput"><span class="identifier">seq</span></tt>.
</p>
<a name="fusion.algorithms.transformation.functions.push_back.complexity"></a><h6>
<a name="id585564"></a>
<a href="push_back.html#fusion.algorithms.transformation.functions.push_back.complexity">Complexity</a>
</h6>
<p>
Constant. Returns a view which is lazily evaluated.
</p>
<a name="fusion.algorithms.transformation.functions.push_back.header"></a><h6>
<a name="id585595"></a>
<a href="push_back.html#fusion.algorithms.transformation.functions.push_back.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">push_back</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.transformation.functions.push_back.example"></a><h6>
<a name="id585701"></a>
<a href="push_back.html#fusion.algorithms.transformation.functions.push_back.example">Example</a>
</h6>
<pre class="programlisting">
<span class="identifier">assert</span><span class="special">(</span><a href="push_back.html" title="push_back"><tt class="computeroutput"><span class="identifier">push_back</span></tt></a><span class="special">(</span><a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">,</span><span class="number">3</span><span class="special">),</span><span class="number">4</span><span class="special">)</span> <span class="special">==</span> <a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">,</span><span class="number">3</span><span class="special">,</span><span class="number">4</span><span class="special">));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="pop_front.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="push_front.html"><img src="../../../../images/next.png" alt="Next"></a>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<link rel="stylesheet" href="../../../../boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.functions.push_front"></a><a href="push_front.html" title="push_front">push_front</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.functions.push_front.description"></a><h6>
<a name="id585915"></a>
<a href="push_front.html#fusion.algorithms.transformation.functions.push_front.description">Description</a>
</h6>
<p>
Returns a new sequence with an element added at the beginning.
</p>
<a name="fusion.algorithms.transformation.functions.push_front.synopsis"></a><h6>
<a name="id585948"></a>
<a href="push_front.html#fusion.algorithms.transformation.functions.push_front.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">T</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/push_front.html" title="push_front"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">push_front</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">push_front</span><span class="special">(</span>
<span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">,</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">t</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id586156"></a><p class="title"><b>Table<EFBFBD>1.71.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">t</span></tt></td>
<td>Any
type</td>
<td>The value to add to the beginning</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.functions.push_front.expression_semantics"></a><h6>
<a name="id586252"></a>
<a href="push_front.html#fusion.algorithms.transformation.functions.push_front.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="push_back.html" title="push_back"><tt class="computeroutput"><span class="identifier">push_back</span></tt></a><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">t</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a new sequence, containing
all the elements of <tt class="computeroutput"><span class="identifier">seq</span></tt>,
and new element <tt class="computeroutput"><span class="identifier">t</span></tt> appended
to the beginning. The elements are in the same order as they were in
<tt class="computeroutput"><span class="identifier">seq</span></tt>.
</p>
<a name="fusion.algorithms.transformation.functions.push_front.complexity"></a><h6>
<a name="id586393"></a>
<a href="push_front.html#fusion.algorithms.transformation.functions.push_front.complexity">Complexity</a>
</h6>
<p>
Constant. Returns a view which is lazily evaluated.
</p>
<a name="fusion.algorithms.transformation.functions.push_front.header"></a><h6>
<a name="id586424"></a>
<a href="push_front.html#fusion.algorithms.transformation.functions.push_front.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">push_front</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.transformation.functions.push_front.example"></a><h6>
<a name="id586531"></a>
<a href="push_front.html#fusion.algorithms.transformation.functions.push_front.example">Example</a>
</h6>
<pre class="programlisting">
<span class="identifier">assert</span><span class="special">(</span><a href="push_front.html" title="push_front"><tt class="computeroutput"><span class="identifier">push_front</span></tt></a><span class="special">(</span><a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">,</span><span class="number">3</span><span class="special">),</span><span class="number">0</span><span class="special">)</span> <span class="special">==</span> <a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">0</span><span class="special">,</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">,</span><span class="number">3</span><span class="special">));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="push_back.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="../metafunctions.html"><img src="../../../../images/next.png" alt="Next"></a>
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<html>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>remove</title>
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.functions.remove"></a><a href="remove.html" title="remove">remove</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.functions.remove.description"></a><h6>
<a name="id574071"></a>
<a href="remove.html#fusion.algorithms.transformation.functions.remove.description">Description</a>
</h6>
<p>
Returns a new sequence, with all the elements of the original sequence,
except those of a given type.
</p>
<a name="fusion.algorithms.transformation.functions.remove.synopsis"></a><h6>
<a name="id574104"></a>
<a href="remove.html#fusion.algorithms.transformation.functions.remove.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">T</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/remove.html" title="remove"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">remove</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">,</span> <span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">replace</span><span class="special">(</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id574288"></a><p class="title"><b>Table<EFBFBD>1.58.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">T</span></tt></td>
<td>Any
type</td>
<td>Type to remove</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.functions.remove.expression_semantics"></a><h6>
<a name="id574383"></a>
<a href="remove.html#fusion.algorithms.transformation.functions.remove.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="remove.html" title="remove"><tt class="computeroutput"><span class="identifier">remove</span></tt></a><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;(</span><span class="identifier">seq</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a new sequence, containing
all the elements of <tt class="computeroutput"><span class="identifier">seq</span></tt>,
in their original order, except those of type <tt class="computeroutput"><span class="identifier">T</span></tt>.
Equivalent to <tt class="computeroutput"><a href="remove_if.html" title="remove_if"><tt class="computeroutput"><span class="identifier">remove_if</span></tt></a><span class="special">&lt;</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">is_same</span><span class="special">&lt;</span><span class="identifier">_</span><span class="special">,</span><span class="identifier">T</span><span class="special">&gt;</span><EFBFBD><span class="special">&gt;(</span><span class="identifier">seq</span><span class="special">)</span></tt>.
</p>
<a name="fusion.algorithms.transformation.functions.remove.complexity"></a><h6>
<a name="id574593"></a>
<a href="remove.html#fusion.algorithms.transformation.functions.remove.complexity">Complexity</a>
</h6>
<p>
Constant. Returns a view which is lazily evaluated.
</p>
<a name="fusion.algorithms.transformation.functions.remove.header"></a><h6>
<a name="id574626"></a>
<a href="remove.html#fusion.algorithms.transformation.functions.remove.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">remove</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.transformation.functions.remove.example"></a><h6>
<a name="id574732"></a>
<a href="remove.html#fusion.algorithms.transformation.functions.remove.example">Example</a>
</h6>
<pre class="programlisting">
<span class="keyword">const</span> <a href="../../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">double</span><span class="special">&gt;</span> <span class="identifier">vec</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2.0</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="remove.html" title="remove"><tt class="computeroutput"><span class="identifier">remove</span></tt></a><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;(</span><span class="identifier">vec</span><span class="special">)</span> <span class="special">==</span> <a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>remove_if</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
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<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.functions.remove_if"></a><a href="remove_if.html" title="remove_if">remove_if</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.functions.remove_if.description"></a><h6>
<a name="id574953"></a>
<a href="remove_if.html#fusion.algorithms.transformation.functions.remove_if.description">Description</a>
</h6>
<p>
Returns a new sequence, containing all the elements of the original except
those where a given unary function object evaluates to <tt class="computeroutput"><span class="keyword">true</span></tt>.
</p>
<a name="fusion.algorithms.transformation.functions.remove_if.synopsis"></a><h6>
<a name="id574997"></a>
<a href="remove_if.html#fusion.algorithms.transformation.functions.remove_if.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Pred</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/remove_if.html" title="remove_if"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">remove_if</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">,</span> <span class="identifier">Pred</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">remove_if</span><span class="special">(</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id575182"></a><p class="title"><b>Table<EFBFBD>1.59.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">Pred</span></tt></td>
<td>A
model of unary MPL Lambda Expression</td>
<td>Removal predicate</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.functions.remove_if.expression_semantics"></a><h6>
<a name="id575278"></a>
<a href="remove_if.html#fusion.algorithms.transformation.functions.remove_if.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="remove_if.html" title="remove_if"><tt class="computeroutput"><span class="identifier">remove_if</span></tt></a><span class="special">&lt;</span><span class="identifier">Pred</span><span class="special">&gt;(</span><span class="identifier">seq</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a new sequence, containing
all the elements of <tt class="computeroutput"><span class="identifier">seq</span></tt>,
in their original order, except those elements with types for which
<tt class="computeroutput"><span class="identifier">Pred</span></tt> evaluates to <tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">true_</span></tt>. Equivalent to <tt class="computeroutput"><a href="filter.html" title="filter"><tt class="computeroutput"><span class="identifier">filter</span></tt></a><span class="special">&lt;</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">not_</span><span class="special">&lt;</span><span class="identifier">Pred</span><span class="special">&gt;</span><EFBFBD><span class="special">&gt;(</span><span class="identifier">seq</span><span class="special">)</span></tt>.
</p>
<a name="fusion.algorithms.transformation.functions.remove_if.complexity"></a><h6>
<a name="id575519"></a>
<a href="remove_if.html#fusion.algorithms.transformation.functions.remove_if.complexity">Complexity</a>
</h6>
<p>
Constant. Returns a view which is lazily evaluated.
</p>
<a name="fusion.algorithms.transformation.functions.remove_if.header"></a><h6>
<a name="id575550"></a>
<a href="remove_if.html#fusion.algorithms.transformation.functions.remove_if.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">remove_if</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.transformation.functions.remove_if.example"></a><h6>
<a name="id575656"></a>
<a href="remove_if.html#fusion.algorithms.transformation.functions.remove_if.example">Example</a>
</h6>
<pre class="programlisting">
<span class="keyword">const</span> <a href="../../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">double</span><span class="special">&gt;</span> <span class="identifier">vec</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2.0</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="remove_if.html" title="remove_if"><tt class="computeroutput"><span class="identifier">remove_if</span></tt></a><span class="special">&lt;</span><span class="identifier">is_floating_point</span><span class="special">&lt;</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">_</span><span class="special">&gt;</span> <span class="special">&gt;(</span><span class="identifier">vec</span><span class="special">)</span> <span class="special">==</span> <a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="remove.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="reverse.html"><img src="../../../../images/next.png" alt="Next"></a>
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<title>replace</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.functions.replace"></a><a href="replace.html" title="replace">replace</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.functions.replace.description"></a><h6>
<a name="id572018"></a>
<a href="replace.html#fusion.algorithms.transformation.functions.replace.description">Description</a>
</h6>
<p>
Replaces each value within a sequence of a given type and value with
a new value.
</p>
<a name="fusion.algorithms.transformation.functions.replace.synopsis"></a><h6>
<a name="id572051"></a>
<a href="replace.html#fusion.algorithms.transformation.functions.replace.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">T</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/replace.html" title="replace"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">replace</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">,</span> <span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">replace</span><span class="special">(</span>
<span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">,</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">old_value</span><span class="special">,</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">new_value</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id572294"></a><p class="title"><b>Table<EFBFBD>1.56.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>, <tt class="computeroutput"><span class="identifier">e</span><EFBFBD><span class="special">==</span><EFBFBD><span class="identifier">old_value</span></tt>
is a valid expression, convertible to <tt class="computeroutput"><span class="keyword">bool</span></tt>,
for each element <tt class="computeroutput"><span class="identifier">e</span></tt>
in <tt class="computeroutput"><span class="identifier">seq</span></tt> with type
convertible to <tt class="computeroutput"><span class="identifier">T</span></tt>
</td>
<td>Operation's
argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">old_value</span></tt></td>
<td>Any
type</td>
<td>Value to replace</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">new_value</span></tt></td>
<td>Any
type</td>
<td>Replacement value</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.functions.replace.expression_semantics"></a><h6>
<a name="id572476"></a>
<a href="replace.html#fusion.algorithms.transformation.functions.replace.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="replace.html" title="replace"><tt class="computeroutput"><span class="identifier">replace</span></tt></a><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">old_value</span><span class="special">,</span> <span class="identifier">new_value</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a new sequence with
all the values of <tt class="computeroutput"><span class="identifier">seq</span></tt>
with <tt class="computeroutput"><span class="identifier">new_value</span></tt> assigned
to elements with the same type and equal to <tt class="computeroutput"><span class="identifier">old_value</span></tt>.
</p>
<a name="fusion.algorithms.transformation.functions.replace.complexity"></a><h6>
<a name="id572627"></a>
<a href="replace.html#fusion.algorithms.transformation.functions.replace.complexity">Complexity</a>
</h6>
<p>
Constant. Returns a view which is lazily evaluated.
</p>
<a name="fusion.algorithms.transformation.functions.replace.header"></a><h6>
<a name="id572659"></a>
<a href="replace.html#fusion.algorithms.transformation.functions.replace.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">replace</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.transformation.functions.replace.example"></a><h6>
<a name="id572766"></a>
<a href="replace.html#fusion.algorithms.transformation.functions.replace.example">Example</a>
</h6>
<pre class="programlisting">
<span class="identifier">assert</span><span class="special">(</span><a href="replace.html" title="replace"><tt class="computeroutput"><span class="identifier">replace</span></tt></a><span class="special">(</span><a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">),</span> <span class="number">2</span><span class="special">,</span> <span class="number">3</span><span class="special">)</span> <span class="special">==</span> <a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">3</span><span class="special">));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
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<div class="spirit-nav">
<a accesskey="p" href="transform.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="replace_if.html"><img src="../../../../images/next.png" alt="Next"></a>
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<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.functions.replace_if"></a><a href="replace_if.html" title="replace_if">replace_if</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.functions.replace_if.description"></a><h6>
<a name="id572962"></a>
<a href="replace_if.html#fusion.algorithms.transformation.functions.replace_if.description">Description</a>
</h6>
<p>
Replaces each element of a given sequence for which an unary function
object evaluates to <tt class="computeroutput"><span class="keyword">true</span></tt>
replaced with a new value.
</p>
<a name="fusion.algorithms.transformation.functions.replace_if.synopsis"></a><h6>
<a name="id573005"></a>
<a href="replace_if.html#fusion.algorithms.transformation.functions.replace_if.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">F</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/replace_if.html" title="replace_if"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">replace_if</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">,</span> <span class="identifier">F</span><span class="special">,</span> <span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">replace_if</span><span class="special">(</span>
<span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">,</span> <span class="identifier">F</span> <span class="identifier">f</span><span class="special">,</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">new_value</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id573264"></a><p class="title"><b>Table<EFBFBD>1.57.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">f</span></tt></td>
<td>A
function object for which <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e</span><span class="special">)</span></tt> is a valid expression, convertible
to <tt class="computeroutput"><span class="keyword">bool</span></tt>, for each element
<tt class="computeroutput"><span class="identifier">e</span></tt> in <tt class="computeroutput"><span class="identifier">seq</span></tt>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">new_value</span></tt></td>
<td>Any
type</td>
<td>Replacement value</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.functions.replace_if.expression_semantics"></a><h6>
<a name="id573436"></a>
<a href="replace_if.html#fusion.algorithms.transformation.functions.replace_if.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="replace_if.html" title="replace_if"><tt class="computeroutput"><span class="identifier">replace_if</span></tt></a><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">f</span><span class="special">,</span> <span class="identifier">new_value</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a new sequence with
all the elements of <tt class="computeroutput"><span class="identifier">seq</span></tt>,
with <tt class="computeroutput"><span class="identifier">new_value</span></tt> assigned
to each element for which <tt class="computeroutput"><span class="identifier">f</span></tt>
evaluates to <tt class="computeroutput"><span class="keyword">true</span></tt>.
</p>
<a name="fusion.algorithms.transformation.functions.replace_if.complexity"></a><h6>
<a name="id573598"></a>
<a href="replace_if.html#fusion.algorithms.transformation.functions.replace_if.complexity">Complexity</a>
</h6>
<p>
Constant. Returns a view which is lazily evaluated.
</p>
<a name="fusion.algorithms.transformation.functions.replace_if.header"></a><h6>
<a name="id573629"></a>
<a href="replace_if.html#fusion.algorithms.transformation.functions.replace_if.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">replace_if</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.transformation.functions.replace_if.example"></a><h6>
<a name="id573736"></a>
<a href="replace_if.html#fusion.algorithms.transformation.functions.replace_if.example">Example</a>
</h6>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">odd</span>
<span class="special">{</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">()(</span><span class="identifier">T</span> <span class="identifier">t</span><span class="special">)</span> <span class="keyword">const</span>
<span class="special">{</span>
<span class="keyword">return</span> <span class="identifier">t</span> <span class="special">%</span> <span class="number">2</span><span class="special">;</span>
<span class="special">}</span>
<span class="special">};</span>
<span class="special">...</span>
<span class="identifier">assert</span><span class="special">(</span><a href="replace_if.html" title="replace_if"><tt class="computeroutput"><span class="identifier">replace_if</span></tt></a><span class="special">(</span><a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">),</span> <span class="identifier">odd</span><span class="special">(),</span> <span class="number">3</span><span class="special">)</span> <span class="special">==</span> <a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">3</span><span class="special">,</span><span class="number">2</span><span class="special">));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="replace.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="remove.html"><img src="../../../../images/next.png" alt="Next"></a>
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<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>reverse</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
<link rel="start" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.functions.reverse"></a><a href="reverse.html" title="reverse">reverse</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.functions.reverse.description"></a><h6>
<a name="id575905"></a>
<a href="reverse.html#fusion.algorithms.transformation.functions.reverse.description">Description</a>
</h6>
<p>
Returns a new sequence with the elements of the original in reverse order.
</p>
<a name="fusion.algorithms.transformation.functions.reverse.synposis"></a><h6>
<a name="id575938"></a>
<a href="reverse.html#fusion.algorithms.transformation.functions.reverse.synposis">Synposis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/reverse.html" title="reverse"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">reverse</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">reverse</span><span class="special">(</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id576094"></a><p class="title"><b>Table<EFBFBD>1.60.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody><tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/bidirectional_sequence.html" title="Bidirectional
Sequence">Bidirectional
Sequence</a>
</td>
<td>Operation's argument</td>
</tr></tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.functions.reverse.expression_semantics"></a><h6>
<a name="id576169"></a>
<a href="reverse.html#fusion.algorithms.transformation.functions.reverse.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="reverse.html" title="reverse"><tt class="computeroutput"><span class="identifier">reverse</span></tt></a><span class="special">(</span><span class="identifier">seq</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/bidirectional_sequence.html" title="Bidirectional
Sequence">Bidirectional
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a new sequence containing
all the elements of <tt class="computeroutput"><span class="identifier">seq</span></tt>
in reverse order.
</p>
<a name="fusion.algorithms.transformation.functions.reverse.complexity"></a><h6>
<a name="id576275"></a>
<a href="reverse.html#fusion.algorithms.transformation.functions.reverse.complexity">Complexity</a>
</h6>
<p>
Constant. Returns a view which is lazily evaluated.
</p>
<a name="fusion.algorithms.transformation.functions.reverse.header"></a><h6>
<a name="id576307"></a>
<a href="reverse.html#fusion.algorithms.transformation.functions.reverse.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">reverse</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.transformation.functions.reverse.example"></a><h6>
<a name="id576413"></a>
<a href="reverse.html#fusion.algorithms.transformation.functions.reverse.example">Example</a>
</h6>
<pre class="programlisting">
<span class="identifier">assert</span><span class="special">(</span><a href="reverse.html" title="reverse"><tt class="computeroutput"><span class="identifier">reverse</span></tt></a><span class="special">(</span><a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">,</span><span class="number">3</span><span class="special">))</span> <span class="special">==</span> <a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">3</span><span class="special">,</span><span class="number">2</span><span class="special">,</span><span class="number">1</span><span class="special">));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="remove_if.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="clear.html"><img src="../../../../images/next.png" alt="Next"></a>
</div>
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<html>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>transform</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
<link rel="start" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
<link rel="up" href="../functions.html" title="Functions">
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<table cellpadding="2" width="100%">
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<td align="center"><a href="../../../../../../../../index.htm">Home</a></td>
<td align="center"><a href="../../../../../../../libraries.htm">Libraries</a></td>
<td align="center"><a href="../../../../../../../../people/people.htm">People</a></td>
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.functions.transform"></a><a href="transform.html" title="transform">transform</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.functions.transform.description"></a><h6>
<a name="id570274"></a>
<a href="transform.html#fusion.algorithms.transformation.functions.transform.description">Description</a>
</h6>
<p>
For a sequence <tt class="computeroutput"><span class="identifier">seq</span></tt> and
<a href="../../concepts/polymorphic_function_object.html" title="Polymorphic
Function Object">Polymorphic
Function Object</a><EFBFBD><tt class="computeroutput"><span class="identifier">F</span></tt>,
<tt class="computeroutput"><span class="identifier">transform</span></tt> returns a new
sequence with elements created by applying <tt class="computeroutput"><span class="identifier">F</span></tt>
to each element of <tt class="computeroutput"><span class="identifier">seq</span></tt>.
</p>
<a name="fusion.algorithms.transformation.functions.transform.unary_version_synopsis"></a><h6>
<a name="id570368"></a>
<a href="transform.html#fusion.algorithms.transformation.functions.transform.unary_version_synopsis">Unary
version synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">F</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/transform.html" title="transform"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">transform</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">,</span> <span class="identifier">F</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">transform</span><span class="special">(</span>
<span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">,</span> <span class="identifier">F</span> <span class="identifier">f</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id570572"></a><p class="title"><b>Table<EFBFBD>1.54.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">f</span></tt></td>
<td>A
model of unary <a href="../../concepts/polymorphic_function_object.html" title="Polymorphic
Function Object">Polymorphic
Function Object</a> where <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e</span><span class="special">)</span></tt> is a valid expression for each element
<tt class="computeroutput"><span class="identifier">e</span></tt> of <tt class="computeroutput"><span class="identifier">seq</span></tt>
</td>
<td>Transformation
function</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.functions.transform.expression_semantics"></a><h6>
<a name="id570722"></a>
<a href="transform.html#fusion.algorithms.transformation.functions.transform.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="transform.html" title="transform"><tt class="computeroutput"><span class="identifier">transform</span></tt></a><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">f</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a new sequence, containing
the return values of <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e</span><span class="special">)</span></tt> for each element <tt class="computeroutput"><span class="identifier">e</span></tt>
within <tt class="computeroutput"><span class="identifier">seq</span></tt>.
</p>
<a name="fusion.algorithms.transformation.functions.transform.binary_version_synopsis"></a><h6>
<a name="id570876"></a>
<a href="transform.html#fusion.algorithms.transformation.functions.transform.binary_version_synopsis">Binary
version synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence1</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">Sequence2</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">F</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/transform.html" title="transform"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">transform</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence1</span> <span class="keyword">const</span><span class="special">,</span> <span class="identifier">Sequence2</span> <span class="keyword">const</span><span class="special">,</span> <span class="identifier">F</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">transform</span><span class="special">(</span>
<span class="identifier">Sequence1</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq1</span><span class="special">,</span> <span class="identifier">Sequence2</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq2</span><span class="special">,</span> <span class="identifier">F</span> <span class="identifier">f</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id571142"></a><p class="title"><b>Table<EFBFBD>1.55.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq1</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">seq2</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">f</span></tt></td>
<td>A
model of binary <a href="../../concepts/polymorphic_function_object.html" title="Polymorphic
Function Object">Polymorphic
Function Object</a> where <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e1</span><span class="special">,</span><EFBFBD><span class="identifier">e2</span><span class="special">)</span></tt> is a valid expression for each pair
of elements <tt class="computeroutput"><span class="identifier">e1</span></tt> and
<tt class="computeroutput"><span class="identifier">e2</span></tt> of <tt class="computeroutput"><span class="identifier">seq1</span></tt> and <tt class="computeroutput"><span class="identifier">seq2</span></tt>
respectively</td>
<td>Transformation function</td>
</tr>
</tbody>
</table>
</div>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a new sequence, containing
the return values of <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e1</span><span class="special">,</span><EFBFBD><span class="identifier">e2</span><span class="special">)</span></tt> for each pair of elements <tt class="computeroutput"><span class="identifier">e1</span></tt> and <tt class="computeroutput"><span class="identifier">e2</span></tt>
within <tt class="computeroutput"><span class="identifier">seq1</span></tt> and <tt class="computeroutput"><span class="identifier">seq2</span></tt> respectively.
</p>
<a name="fusion.algorithms.transformation.functions.transform.complexity"></a><h6>
<a name="id571462"></a>
<a href="transform.html#fusion.algorithms.transformation.functions.transform.complexity">Complexity</a>
</h6>
<p>
Constant. Returns a view which is lazily evaluated.
</p>
<a name="fusion.algorithms.transformation.functions.transform.header"></a><h6>
<a name="id571493"></a>
<a href="transform.html#fusion.algorithms.transformation.functions.transform.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">transform</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.transformation.functions.transform.example"></a><h6>
<a name="id571600"></a>
<a href="transform.html#fusion.algorithms.transformation.functions.transform.example">Example</a>
</h6>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">triple</span>
<span class="special">{</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">apply</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="identifier">T</span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="identifier">T</span> <span class="keyword">operator</span><span class="special">()(</span><span class="identifier">T</span> <span class="identifier">t</span><span class="special">)</span> <span class="keyword">const</span>
<span class="special">{</span>
<span class="keyword">return</span> <span class="identifier">t</span> <span class="special">*</span> <span class="number">3</span><span class="special">;</span>
<span class="special">};</span>
<span class="special">};</span>
<span class="special">...</span>
<span class="identifier">assert</span><span class="special">(</span><a href="transform.html" title="transform"><tt class="computeroutput"><span class="identifier">transform</span></tt></a><span class="special">(</span><a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">,</span><span class="number">3</span><span class="special">),</span> <span class="identifier">triple</span><span class="special">())</span> <span class="special">==</span> <a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">3</span><span class="special">,</span><span class="number">6</span><span class="special">,</span><span class="number">9</span><span class="special">));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
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<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
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@ -1,128 +0,0 @@
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>zip</title>
<link rel="stylesheet" href="../../../../boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
<link rel="start" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.functions.zip"></a><a href="zip.html" title="zip">zip</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.functions.zip.description"></a><h6>
<a name="id582491"></a>
<a href="zip.html#fusion.algorithms.transformation.functions.zip.description">Description</a>
</h6>
<p>
Zips sequences together to form a single sequence, whos members are tuples
of the members of the component sequences.
</p>
<a name="fusion.algorithms.transformation.functions.zip.synopsis"></a><h6>
<a name="id582524"></a>
<a href="zip.html#fusion.algorithms.transformation.functions.zip.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence1</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">Sequence2</span><span class="special">,</span>
<span class="special">...</span>
<span class="keyword">typename</span> <span class="identifier">SequenceN</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/zip.html" title="zip"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">zip</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence1</span><span class="special">,</span> <span class="identifier">Sequence2</span><span class="special">,</span> <span class="special">...</span> <span class="identifier">SequenceN</span><span class="special">&gt;::</span><span class="identifier">type</span>
<span class="identifier">zip</span><span class="special">(</span><span class="identifier">Sequence1</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq1</span><span class="special">,</span> <span class="identifier">Sequence2</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seq2</span><span class="special">,</span> <span class="special">...</span> <span class="identifier">SequenceN</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">seqN</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id582807"></a><p class="title"><b>Table<EFBFBD>1.67.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody><tr>
<td>
<tt class="computeroutput"><span class="identifier">seq1</span></tt> to <tt class="computeroutput"><span class="identifier">seqN</span></tt>
</td>
<td>Each sequence
is a model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.</td>
<td>Operation's argument</td>
</tr></tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.functions.zip.expression_semantics"></a><h6>
<a name="id582894"></a>
<a href="zip.html#fusion.algorithms.transformation.functions.zip.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="zip.html" title="zip"><tt class="computeroutput"><span class="identifier">zip</span></tt></a><span class="special">(</span><span class="identifier">seq1</span><span class="special">,</span> <span class="identifier">seq2</span><span class="special">,</span> <span class="special">...</span> <span class="identifier">seqN</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a sequence containing
tuples of elements from sequences <tt class="computeroutput"><span class="identifier">seq1</span></tt>
to <tt class="computeroutput"><span class="identifier">seqN</span></tt>. For example,
applying zip to tuples <tt class="computeroutput"><span class="special">(</span><span class="number">1</span><span class="special">,</span><EFBFBD><span class="number">2</span><span class="special">,</span><EFBFBD><span class="number">3</span><span class="special">)</span></tt> and
<tt class="computeroutput"><span class="special">(</span><span class="char">'a'</span><span class="special">,</span><EFBFBD><span class="char">'b'</span><span class="special">,</span><EFBFBD><span class="char">'c'</span><span class="special">)</span></tt> would return <tt class="computeroutput"><span class="special">((</span><span class="number">1</span><span class="special">,</span><EFBFBD><span class="char">'a'</span><span class="special">),(</span><span class="number">2</span><span class="special">,</span><EFBFBD><span class="char">'b'</span><span class="special">),(</span><span class="number">3</span><span class="special">,</span><EFBFBD><span class="char">'c'</span><span class="special">))</span></tt>
</p>
<a name="fusion.algorithms.transformation.functions.zip.complexity"></a><h6>
<a name="id583194"></a>
<a href="zip.html#fusion.algorithms.transformation.functions.zip.complexity">Complexity</a>
</h6>
<p>
Constant. Returns a view which is lazily evaluated.
</p>
<a name="fusion.algorithms.transformation.functions.zip.header"></a><h6>
<a name="id583227"></a>
<a href="zip.html#fusion.algorithms.transformation.functions.zip.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">zip</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.algorithms.transformation.functions.zip.example"></a><h6>
<a name="id583332"></a>
<a href="zip.html#fusion.algorithms.transformation.functions.zip.example">Example</a>
</h6>
<pre class="programlisting">
<a href="../../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">char</span><span class="special">&gt;</span> <span class="identifier">v1</span><span class="special">(</span><span class="number">1</span><span class="special">,</span> <span class="char">'a'</span><span class="special">);</span>
<a href="../../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">char</span><span class="special">&gt;</span> <span class="identifier">v2</span><span class="special">(</span><span class="number">2</span><span class="special">,</span> <span class="char">'b'</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="zip.html" title="zip"><tt class="computeroutput"><span class="identifier">zip</span></tt></a><span class="special">(</span><span class="identifier">v1</span><span class="special">,</span> <span class="identifier">v2</span><span class="special">)</span> <span class="special">==</span> <a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span> <span class="number">2</span><span class="special">),</span><a href="../../../sequences/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="char">'a'</span><span class="special">,</span> <span class="char">'b'</span><span class="special">));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
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<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.algorithms.transformation.metafunctions"></a><a href="metafunctions.html" title="Metafunctions">Metafunctions</a></h4></div></div></div>
<div class="toc"><dl>
<dt><span class="section"><a href="metafunctions/filter.html">filter</a></span></dt>
<dt><span class="section"><a href="metafunctions/filter_if.html">filter_if</a></span></dt>
<dt><span class="section"><a href="metafunctions/transform.html">transform</a></span></dt>
<dt><span class="section"><a href="metafunctions/replace.html">replace</a></span></dt>
<dt><span class="section"><a href="metafunctions/replace_if.html">replace_if</a></span></dt>
<dt><span class="section"><a href="metafunctions/remove.html">remove</a></span></dt>
<dt><span class="section"><a href="metafunctions/remove_if.html">remove_if</a></span></dt>
<dt><span class="section"><a href="metafunctions/reverse.html">reverse</a></span></dt>
<dt><span class="section"><a href="metafunctions/clear.html">clear</a></span></dt>
<dt><span class="section"><a href="metafunctions/erase.html">erase</a></span></dt>
<dt><span class="section"><a href="metafunctions/erase_key.html">erase_key</a></span></dt>
<dt><span class="section"><a href="metafunctions/insert.html">insert</a></span></dt>
<dt><span class="section"><a href="metafunctions/insert_range.html">insert_range</a></span></dt>
<dt><span class="section"><a href="metafunctions/join.html">join</a></span></dt>
<dt><span class="section"><a href="metafunctions/zip.html">zip</a></span></dt>
<dt><span class="section"><a href="metafunctions/pop_back.html">pop_back</a></span></dt>
<dt><span class="section"><a href="metafunctions/pop_front.html">pop_front</a></span></dt>
<dt><span class="section"><a href="metafunctions/push_back.html">push_back</a></span></dt>
<dt><span class="section"><a href="metafunctions/push_front.html">push_front</a></span></dt>
</dl></div>
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</tr></table>
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<html>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>clear</title>
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<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.metafunctions.clear"></a><a href="clear.html" title="clear">clear</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.metafunctions.clear.description"></a><h6>
<a name="id591686"></a>
<a href="clear.html#fusion.algorithms.transformation.metafunctions.clear.description">Description</a>
</h6>
<p>
Returns the result type of <a href="../functions/clear.html" title="clear"><tt class="computeroutput"><span class="identifier">clear</span></tt></a>, given the input sequence
type.
</p>
<a name="fusion.algorithms.transformation.metafunctions.clear.synopsis"></a><h6>
<a name="id591735"></a>
<a href="clear.html#fusion.algorithms.transformation.metafunctions.clear.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">clear</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id591836"></a><p class="title"><b>Table<EFBFBD>1.80.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody><tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>Any
type</td>
<td>Operation's argument</td>
</tr></tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.metafunctions.clear.expression_semantics"></a><h6>
<a name="id591904"></a>
<a href="clear.html#fusion.algorithms.transformation.metafunctions.clear.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="clear.html" title="clear"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">clear</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns an empty sequence.
</p>
<a name="fusion.algorithms.transformation.metafunctions.clear.complexity"></a><h6>
<a name="id592018"></a>
<a href="clear.html#fusion.algorithms.transformation.metafunctions.clear.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.transformation.metafunctions.clear.header"></a><h6>
<a name="id592049"></a>
<a href="clear.html#fusion.algorithms.transformation.metafunctions.clear.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">clear</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>erase</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.metafunctions.erase"></a><a href="erase.html" title="erase">erase</a></h5></div></div></div>
<p>
Returns the result type of <a href="../functions/erase.html" title="erase"><tt class="computeroutput"><span class="identifier">erase</span></tt></a>, given the input sequence
and range delimiting iterator types.
</p>
<a name="fusion.algorithms.transformation.metafunctions.erase.description"></a><h6>
<a name="id592199"></a>
<a href="erase.html#fusion.algorithms.transformation.metafunctions.erase.description">Description</a>
</h6>
<a name="fusion.algorithms.transformation.metafunctions.erase.synopsis"></a><h6>
<a name="id592226"></a>
<a href="erase.html#fusion.algorithms.transformation.metafunctions.erase.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">It1</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">It2</span> <span class="special">=</span> <span class="emphasis"><em>unspecified</em></span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">erase</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id592371"></a><p class="title"><b>Table<EFBFBD>1.81.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">It1</span></tt></td>
<td>A
model of <a href="../../../iterators/concepts/forward_iterator.html" title="Forward
Iterator">Forward
Iterator</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">It2</span></tt></td>
<td>A
model of <a href="../../../iterators/concepts/forward_iterator.html" title="Forward
Iterator">Forward
Iterator</a>
</td>
<td>Operation's argument</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.metafunctions.erase.expression_semantics"></a><h6>
<a name="id592503"></a>
<a href="erase.html#fusion.algorithms.transformation.metafunctions.erase.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="erase.html" title="erase"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">erase</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">It1</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a new sequence with
the element at <tt class="computeroutput"><span class="identifier">It1</span></tt> removed.
</p>
<pre class="programlisting">
<a href="erase.html" title="erase"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">erase</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">It1</span><span class="special">,</span> <span class="identifier">It2</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a new sequence with
the elements between <tt class="computeroutput"><span class="identifier">It1</span></tt>
and <tt class="computeroutput"><span class="identifier">It2</span></tt> removed.
</p>
<a name="fusion.algorithms.transformation.metafunctions.erase.complexity"></a><h6>
<a name="id592764"></a>
<a href="erase.html#fusion.algorithms.transformation.metafunctions.erase.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.transformation.metafunctions.erase.header"></a><h6>
<a name="id592796"></a>
<a href="erase.html#fusion.algorithms.transformation.metafunctions.erase.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">erase</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>erase_key</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.metafunctions.erase_key"></a><a href="erase_key.html" title="erase_key">erase_key</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.metafunctions.erase_key.description"></a><h6>
<a name="id592926"></a>
<a href="erase_key.html#fusion.algorithms.transformation.metafunctions.erase_key.description">Description</a>
</h6>
<p>
Returns the result type of <a href="../functions/erase_key.html" title="erase_key"><tt class="computeroutput"><span class="identifier">erase_key</span></tt></a>, given the sequence
and key types.
</p>
<a name="fusion.algorithms.transformation.metafunctions.erase_key.synopsis"></a><h6>
<a name="id592976"></a>
<a href="erase_key.html#fusion.algorithms.transformation.metafunctions.erase_key.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">Key</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">erase_key</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id593095"></a><p class="title"><b>Table<EFBFBD>1.82.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/associative_sequence.html" title="Associative
Sequence">Associative
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">Key</span></tt></td>
<td>Any
type</td>
<td>Key type</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.metafunctions.erase_key.expression_semantics"></a><h6>
<a name="id593191"></a>
<a href="erase_key.html#fusion.algorithms.transformation.metafunctions.erase_key.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="erase_key.html" title="erase_key"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">erase_key</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">Key</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/associative_sequence.html" title="Associative
Sequence">Associative
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a sequence with the
elements of <tt class="computeroutput"><span class="identifier">Sequence</span></tt>,
except those with key <tt class="computeroutput"><span class="identifier">Key</span></tt>.
</p>
<a name="fusion.algorithms.transformation.metafunctions.erase_key.complexity"></a><h6>
<a name="id593335"></a>
<a href="erase_key.html#fusion.algorithms.transformation.metafunctions.erase_key.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.transformation.metafunctions.erase_key.header"></a><h6>
<a name="id593367"></a>
<a href="erase_key.html#fusion.algorithms.transformation.metafunctions.erase_key.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">erase_key</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="erase.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="insert.html"><img src="../../../../images/next.png" alt="Next"></a>
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>filter</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
<link rel="start" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.metafunctions.filter"></a><a href="filter.html" title="filter">filter</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.metafunctions.filter.description"></a><h6>
<a name="id586762"></a>
<a href="filter.html#fusion.algorithms.transformation.metafunctions.filter.description">Description</a>
</h6>
<p>
Returns the result type of <a href="../functions/filter.html" title="filter"><tt class="computeroutput"><span class="identifier">filter</span></tt></a> given the sequence type
and type to retain.
</p>
<a name="fusion.algorithms.transformation.metafunctions.filter.synopsis"></a><h6>
<a name="id586811"></a>
<a href="filter.html#fusion.algorithms.transformation.metafunctions.filter.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">T</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">filter</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id586929"></a><p class="title"><b>Table<EFBFBD>1.72.<2E>Parameter</b></p>
<table class="table" summary="Parameter">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">T</span></tt></td>
<td>Any
type</td>
<td>Type to retain</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.metafunctions.filter.expression_semantics"></a><h6>
<a name="id587026"></a>
<a href="filter.html#fusion.algorithms.transformation.metafunctions.filter.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="filter.html" title="filter"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">filter</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a sequence containing
the elements of <tt class="computeroutput"><span class="identifier">Sequence</span></tt>
that are of type <tt class="computeroutput"><span class="identifier">T</span></tt>. Equivalent
to <tt class="computeroutput"><a href="filter_if.html" title="filter_if"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">filter_if</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span><EFBFBD><span class="identifier">boost</span><span class="special">::</span><span class="identifier">is_same</span><span class="special">&lt;</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">_</span><span class="special">,</span><EFBFBD><span class="identifier">T</span><span class="special">&gt;</span><EFBFBD><span class="special">&gt;::</span><span class="identifier">type</span></tt>.
</p>
<a name="fusion.algorithms.transformation.metafunctions.filter.complexity"></a><h6>
<a name="id587283"></a>
<a href="filter.html#fusion.algorithms.transformation.metafunctions.filter.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.transformation.metafunctions.filter.header"></a><h6>
<a name="id587315"></a>
<a href="filter.html#fusion.algorithms.transformation.metafunctions.filter.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">filter</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="../metafunctions.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="filter_if.html"><img src="../../../../images/next.png" alt="Next"></a>
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<hr>
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<a accesskey="p" href="filter.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="transform.html"><img src="../../../../images/next.png" alt="Next"></a>
</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.metafunctions.filter_if"></a><a href="filter_if.html" title="filter_if">filter_if</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.metafunctions.filter_if.description"></a><h6>
<a name="id587443"></a>
<a href="filter_if.html#fusion.algorithms.transformation.metafunctions.filter_if.description">Description</a>
</h6>
<p>
Returns the result type of <a href="../functions/filter_if.html" title="filter_if"><tt class="computeroutput"><span class="identifier">filter_if</span></tt></a> given the sequence
and unary MPL Lambda Expression predicate type.
</p>
<a name="fusion.algorithms.transformation.metafunctions.filter_if.synopsis"></a><h6>
<a name="id587494"></a>
<a href="filter_if.html#fusion.algorithms.transformation.metafunctions.filter_if.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">Pred</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">filter_if</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id587613"></a><p class="title"><b>Table<EFBFBD>1.73.<2E>Parameter</b></p>
<table class="table" summary="Parameter">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">Pred</span></tt></td>
<td>A
unary MPL Lambda Expression</td>
<td>Type to retain</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.metafunctions.filter_if.expression_semantics"></a><h6>
<a name="id587709"></a>
<a href="filter_if.html#fusion.algorithms.transformation.metafunctions.filter_if.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="filter_if.html" title="filter_if"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">filter_if</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">Pred</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a sequence containing
the elements of <tt class="computeroutput"><span class="identifier">Sequence</span></tt>
for which <tt class="computeroutput"><span class="identifier">Pred</span></tt> evaluates
to <tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">true_</span></tt>.
</p>
<a name="fusion.algorithms.transformation.metafunctions.filter_if.complexity"></a><h6>
<a name="id587885"></a>
<a href="filter_if.html#fusion.algorithms.transformation.metafunctions.filter_if.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.transformation.metafunctions.filter_if.header"></a><h6>
<a name="id587917"></a>
<a href="filter_if.html#fusion.algorithms.transformation.metafunctions.filter_if.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">filter_if</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="filter.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="transform.html"><img src="../../../../images/next.png" alt="Next"></a>
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@ -1,135 +0,0 @@
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>insert</title>
<link rel="stylesheet" href="../../../../boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
<link rel="start" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
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<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.metafunctions.insert"></a><a href="insert.html" title="insert">insert</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.metafunctions.insert.description"></a><h6>
<a name="id593498"></a>
<a href="insert.html#fusion.algorithms.transformation.metafunctions.insert.description">Description</a>
</h6>
<p>
Returns the result type of <a href="../functions/insert.html" title="insert"><tt class="computeroutput"><span class="identifier">insert</span></tt></a>, given the sequence,
position iterator and insertion types.
</p>
<a name="fusion.algorithms.transformation.metafunctions.insert.synopsis"></a><h6>
<a name="id593548"></a>
<a href="insert.html#fusion.algorithms.transformation.metafunctions.insert.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">Position</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">T</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">insert</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id593684"></a><p class="title"><b>Table<EFBFBD>1.83.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">Position</span></tt></td>
<td>A
model of <a href="../../../iterators/concepts/forward_iterator.html" title="Forward
Iterator">Forward
Iterator</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">T</span></tt></td>
<td>Any
type</td>
<td>Operation's argument</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.metafunctions.insert.expression_semantics"></a><h6>
<a name="id593809"></a>
<a href="insert.html#fusion.algorithms.transformation.metafunctions.insert.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="insert.html" title="insert"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">insert</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">Position</span><span class="special">,</span> <span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a sequence with an
element of type <tt class="computeroutput"><span class="identifier">T</span></tt> inserted
at position <tt class="computeroutput"><span class="identifier">Position</span></tt>
in <tt class="computeroutput"><span class="identifier">Sequence</span></tt>.
</p>
<a name="fusion.algorithms.transformation.metafunctions.insert.complexity"></a><h6>
<a name="id593976"></a>
<a href="insert.html#fusion.algorithms.transformation.metafunctions.insert.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.transformation.metafunctions.insert.header"></a><h6>
<a name="id594008"></a>
<a href="insert.html#fusion.algorithms.transformation.metafunctions.insert.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">insert</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.metafunctions.insert_range"></a><a href="insert_range.html" title="insert_range">insert_range</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.metafunctions.insert_range.description"></a><h6>
<a name="id594136"></a>
<a href="insert_range.html#fusion.algorithms.transformation.metafunctions.insert_range.description">Description</a>
</h6>
<p>
Returns the result type of <a href="../functions/insert_range.html" title="insert_range"><tt class="computeroutput"><span class="identifier">insert_range</span></tt></a>, given the input
sequence, position iterator and insertion range types.
</p>
<a name="fusion.algorithms.transformation.metafunctions.insert_range.synopsis"></a><h6>
<a name="id594187"></a>
<a href="insert_range.html#fusion.algorithms.transformation.metafunctions.insert_range.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">Position</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">Range</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">insert_range</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id594324"></a><p class="title"><b>Table<EFBFBD>1.84.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">Position</span></tt></td>
<td>A
model of <a href="../../../iterators/concepts/forward_iterator.html" title="Forward
Iterator">Forward
Iterator</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">Range</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.metafunctions.insert_range.expression_semantics"></a><h6>
<a name="id594459"></a>
<a href="insert_range.html#fusion.algorithms.transformation.metafunctions.insert_range.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="insert_range.html" title="insert_range"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">insert_range</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">Position</span><span class="special">,</span> <span class="identifier">Range</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a sequence with the
elements of <tt class="computeroutput"><span class="identifier">Range</span></tt> inserted
at position <tt class="computeroutput"><span class="identifier">Position</span></tt>
into <tt class="computeroutput"><span class="identifier">Sequence</span></tt>.
</p>
<a name="fusion.algorithms.transformation.metafunctions.insert_range.complexity"></a><h6>
<a name="id594626"></a>
<a href="insert_range.html#fusion.algorithms.transformation.metafunctions.insert_range.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.transformation.metafunctions.insert_range.header"></a><h6>
<a name="id594659"></a>
<a href="insert_range.html#fusion.algorithms.transformation.metafunctions.insert_range.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">insert_range</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="insert.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="join.html"><img src="../../../../images/next.png" alt="Next"></a>
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>join</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
<link rel="start" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
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<table cellpadding="2" width="100%">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.metafunctions.join"></a><a href="join.html" title="join">join</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.metafunctions.join.description"></a><h6>
<a name="id594787"></a>
<a href="join.html#fusion.algorithms.transformation.metafunctions.join.description">Description</a>
</h6>
<p>
Returns the result of joining 2 sequences, given the sequence types.
</p>
<a name="fusion.algorithms.transformation.metafunctions.join.synopsis"></a><h6>
<a name="id594819"></a>
<a href="join.html#fusion.algorithms.transformation.metafunctions.join.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">LhSequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">RhSequence</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">join</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<a name="fusion.algorithms.transformation.metafunctions.join.expression_semantics"></a><h6>
<a name="id594948"></a>
<a href="join.html#fusion.algorithms.transformation.metafunctions.join.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="join.html" title="join"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">join</span></tt></a><span class="special">&lt;</span><span class="identifier">LhSequence</span><span class="special">,</span> <span class="identifier">RhSequence</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a sequence containing
the elements of <tt class="computeroutput"><span class="identifier">LhSequence</span></tt>
followed by the elements of <tt class="computeroutput"><span class="identifier">RhSequence</span></tt>.
The order of the elements in the 2 sequences is preserved.
</p>
<a name="fusion.algorithms.transformation.metafunctions.join.complexity"></a><h6>
<a name="id595093"></a>
<a href="join.html#fusion.algorithms.transformation.metafunctions.join.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.transformation.metafunctions.join.header"></a><h6>
<a name="id595125"></a>
<a href="join.html#fusion.algorithms.transformation.metafunctions.join.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">join</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.metafunctions.pop_back"></a><a href="pop_back.html" title="pop_back">pop_back</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.metafunctions.pop_back.description"></a><h6>
<a name="id595904"></a>
<a href="pop_back.html#fusion.algorithms.transformation.metafunctions.pop_back.description">Description</a>
</h6>
<p>
Returns the result type of <a href="../functions/pop_back.html" title="pop_back"><tt class="computeroutput"><span class="identifier">pop_back</span></tt></a>, given the input sequence
type.
</p>
<a name="fusion.algorithms.transformation.metafunctions.pop_back.synopsis"></a><h6>
<a name="id595953"></a>
<a href="pop_back.html#fusion.algorithms.transformation.metafunctions.pop_back.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">pop_back</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id596054"></a><p class="title"><b>Table<EFBFBD>1.85.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody><tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr></tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.metafunctions.pop_back.expression_semantics"></a><h6>
<a name="id596131"></a>
<a href="pop_back.html#fusion.algorithms.transformation.metafunctions.pop_back.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="pop_back.html" title="pop_back"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">pop_back</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a sequence with all
the elements of <tt class="computeroutput"><span class="identifier">Sequence</span></tt>
except the last element.
</p>
<a name="fusion.algorithms.transformation.metafunctions.pop_back.complexity"></a><h6>
<a name="id596256"></a>
<a href="pop_back.html#fusion.algorithms.transformation.metafunctions.pop_back.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.transformation.metafunctions.pop_back.header"></a><h6>
<a name="id596288"></a>
<a href="pop_back.html#fusion.algorithms.transformation.metafunctions.pop_back.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">tranformation</span><span class="special">/</span><span class="identifier">pop_back</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="zip.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="pop_front.html"><img src="../../../../images/next.png" alt="Next"></a>
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>pop_front</title>
<link rel="stylesheet" href="../../../../boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.metafunctions.pop_front"></a><a href="pop_front.html" title="pop_front">pop_front</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.metafunctions.pop_front.description"></a><h6>
<a name="id596415"></a>
<a href="pop_front.html#fusion.algorithms.transformation.metafunctions.pop_front.description">Description</a>
</h6>
<p>
Returns the result type of <a href="../functions/pop_front.html" title="pop_front"><tt class="computeroutput"><span class="identifier">pop_front</span></tt></a>, given the input sequence
type.
</p>
<a name="fusion.algorithms.transformation.metafunctions.pop_front.synopsis"></a><h6>
<a name="id596466"></a>
<a href="pop_front.html#fusion.algorithms.transformation.metafunctions.pop_front.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">pop_front</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id596567"></a><p class="title"><b>Table<EFBFBD>1.86.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody><tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr></tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.metafunctions.pop_front.expression_semantics"></a><h6>
<a name="id596642"></a>
<a href="pop_front.html#fusion.algorithms.transformation.metafunctions.pop_front.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="pop_front.html" title="pop_front"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">pop_front</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a sequence with all
the elements of <tt class="computeroutput"><span class="identifier">Sequence</span></tt>
except the first element.
</p>
<a name="fusion.algorithms.transformation.metafunctions.pop_front.complexity"></a><h6>
<a name="id596767"></a>
<a href="pop_front.html#fusion.algorithms.transformation.metafunctions.pop_front.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.transformation.metafunctions.pop_front.header"></a><h6>
<a name="id596799"></a>
<a href="pop_front.html#fusion.algorithms.transformation.metafunctions.pop_front.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">pop_front</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="pop_back.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="push_back.html"><img src="../../../../images/next.png" alt="Next"></a>
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>push_back</title>
<link rel="stylesheet" href="../../../../boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.metafunctions.push_back"></a><a href="push_back.html" title="push_back">push_back</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.metafunctions.push_back.description"></a><h6>
<a name="id596927"></a>
<a href="push_back.html#fusion.algorithms.transformation.metafunctions.push_back.description">Description</a>
</h6>
<p>
Returns the result type of <a href="../functions/push_back.html" title="push_back"><tt class="computeroutput"><span class="identifier">push_back</span></tt></a>, given the types of
the input sequence and element to push.
</p>
<a name="fusion.algorithms.transformation.metafunctions.push_back.synopsis"></a><h6>
<a name="id596979"></a>
<a href="push_back.html#fusion.algorithms.transformation.metafunctions.push_back.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">T</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">push_back</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id597097"></a><p class="title"><b>Table<EFBFBD>1.87.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">T</span></tt></td>
<td>Any
type</td>
<td>Operation's argument</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.metafunctions.push_back.expression_semantics"></a><h6>
<a name="id597193"></a>
<a href="push_back.html#fusion.algorithms.transformation.metafunctions.push_back.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="push_back.html" title="push_back"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">push_back</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a sequence with the
elements of <tt class="computeroutput"><span class="identifier">Sequence</span></tt>
and an element of type <tt class="computeroutput"><span class="identifier">T</span></tt>
added to the end.
</p>
<a name="fusion.algorithms.transformation.metafunctions.push_back.complexity"></a><h6>
<a name="id597338"></a>
<a href="push_back.html#fusion.algorithms.transformation.metafunctions.push_back.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.transformation.metafunctions.push_back.header"></a><h6>
<a name="id597370"></a>
<a href="push_back.html#fusion.algorithms.transformation.metafunctions.push_back.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">push_back</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="pop_front.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="push_front.html"><img src="../../../../images/next.png" alt="Next"></a>
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>push_front</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.metafunctions.push_front"></a><a href="push_front.html" title="push_front">push_front</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.metafunctions.push_front.description"></a><h6>
<a name="id597498"></a>
<a href="push_front.html#fusion.algorithms.transformation.metafunctions.push_front.description">Description</a>
</h6>
<p>
Returns the result type of <a href="../functions/push_front.html" title="push_front"><tt class="computeroutput"><span class="identifier">push_front</span></tt></a>, given the types
of the input sequence and element to push.
</p>
<a name="fusion.algorithms.transformation.metafunctions.push_front.synopsis"></a><h6>
<a name="id597550"></a>
<a href="push_front.html#fusion.algorithms.transformation.metafunctions.push_front.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">T</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">push_front</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id597668"></a><p class="title"><b>Table<EFBFBD>1.88.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">T</span></tt></td>
<td>Any
type</td>
<td>Operation's argument</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.metafunctions.push_front.expression_semantics"></a><h6>
<a name="id597764"></a>
<a href="push_front.html#fusion.algorithms.transformation.metafunctions.push_front.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="push_front.html" title="push_front"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">push_front</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a sequence with the
elements of <tt class="computeroutput"><span class="identifier">Sequence</span></tt>
and an element of type <tt class="computeroutput"><span class="identifier">T</span></tt>
added to the beginning.
</p>
<a name="fusion.algorithms.transformation.metafunctions.push_front.complexity"></a><h6>
<a name="id597909"></a>
<a href="push_front.html#fusion.algorithms.transformation.metafunctions.push_front.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.transformation.metafunctions.push_front.header"></a><h6>
<a name="id597941"></a>
<a href="push_front.html#fusion.algorithms.transformation.metafunctions.push_front.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">push_front</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="push_back.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="../../../tuples.html"><img src="../../../../images/next.png" alt="Next"></a>
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>remove</title>
<link rel="stylesheet" href="../../../../boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
<link rel="start" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.metafunctions.remove"></a><a href="remove.html" title="remove">remove</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.metafunctions.remove.description"></a><h6>
<a name="id589868"></a>
<a href="remove.html#fusion.algorithms.transformation.metafunctions.remove.description">Description</a>
</h6>
<p>
Returns the result type of <a href="../functions/remove.html" title="remove"><tt class="computeroutput"><span class="identifier">remove</span></tt></a>, given the sequence and
removal types.
</p>
<a name="fusion.algorithms.transformation.metafunctions.remove.synopsis"></a><h6>
<a name="id589917"></a>
<a href="remove.html#fusion.algorithms.transformation.metafunctions.remove.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">T</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">remove</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id590036"></a><p class="title"><b>Table<EFBFBD>1.77.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">T</span></tt></td>
<td>Any
type</td>
<td>Remove elements of this type</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.metafunctions.remove.expression_semantics"></a><h6>
<a name="id590131"></a>
<a href="remove.html#fusion.algorithms.transformation.metafunctions.remove.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="remove.html" title="remove"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">remove</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a sequence containing
the elements of <tt class="computeroutput"><span class="identifier">Sequence</span></tt>
not of type <tt class="computeroutput"><span class="identifier">T</span></tt>. Equivalent
to <tt class="computeroutput"><a href="replace_if.html" title="replace_if"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">replace_if</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span><EFBFBD><span class="identifier">boost</span><span class="special">::</span><span class="identifier">is_same</span><span class="special">&lt;</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">_</span><span class="special">,</span><EFBFBD><span class="identifier">T</span><span class="special">&gt;</span><EFBFBD><span class="special">&gt;::</span><span class="identifier">type</span></tt>.
</p>
<a name="fusion.algorithms.transformation.metafunctions.remove.complexity"></a><h6>
<a name="id590387"></a>
<a href="remove.html#fusion.algorithms.transformation.metafunctions.remove.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.transformation.metafunctions.remove.header"></a><h6>
<a name="id590419"></a>
<a href="remove.html#fusion.algorithms.transformation.metafunctions.remove.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">remove</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="replace_if.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="remove_if.html"><img src="../../../../images/next.png" alt="Next"></a>
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>remove_if</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
<link rel="start" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
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<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../../boost.png"></td>
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.metafunctions.remove_if"></a><a href="remove_if.html" title="remove_if">remove_if</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.metafunctions.remove_if.description"></a><h6>
<a name="id590547"></a>
<a href="remove_if.html#fusion.algorithms.transformation.metafunctions.remove_if.description">Description</a>
</h6>
<p>
Returns the result type of <a href="../functions/remove_if.html" title="remove_if"><tt class="computeroutput"><span class="identifier">remove_if</span></tt></a>, given the input sequence
and unary MPL Lambda Expression predicate types.
</p>
<a name="fusion.algorithms.transformation.metafunctions.remove_if.synopsis"></a><h6>
<a name="id590598"></a>
<a href="remove_if.html#fusion.algorithms.transformation.metafunctions.remove_if.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">Pred</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">remove_if</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id590717"></a><p class="title"><b>Table<EFBFBD>1.78.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">Pred</span></tt></td>
<td>A
model of unary MPL Lambda Expression</td>
<td>Remove elements
which evaluate to <tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">true_</span></tt>
</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.metafunctions.remove_if.expression_semantics"></a><h6>
<a name="id590842"></a>
<a href="remove_if.html#fusion.algorithms.transformation.metafunctions.remove_if.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="remove_if.html" title="remove_if"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">remove_if</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">Pred</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a sequence containing
the elements of <tt class="computeroutput"><span class="identifier">Sequence</span></tt>
for which <tt class="computeroutput"><span class="identifier">Pred</span></tt> evaluates
to <tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">false_</span></tt>.
</p>
<a name="fusion.algorithms.transformation.metafunctions.remove_if.complexity"></a><h6>
<a name="id591018"></a>
<a href="remove_if.html#fusion.algorithms.transformation.metafunctions.remove_if.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.transformation.metafunctions.remove_if.header"></a><h6>
<a name="id591050"></a>
<a href="remove_if.html#fusion.algorithms.transformation.metafunctions.remove_if.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">remove_if</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="remove.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="reverse.html"><img src="../../../../images/next.png" alt="Next"></a>
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>replace</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
<link rel="start" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.metafunctions.replace"></a><a href="replace.html" title="replace">replace</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.metafunctions.replace.description"></a><h6>
<a name="id588675"></a>
<a href="replace.html#fusion.algorithms.transformation.metafunctions.replace.description">Description</a>
</h6>
<p>
Returns the result type of <a href="../functions/replace.html" title="replace"><tt class="computeroutput"><span class="identifier">replace</span></tt></a>, given the types of
the input sequence and element to replace.
</p>
<a name="fusion.algorithms.transformation.metafunctions.replace.synopsis"></a><h6>
<a name="id588725"></a>
<a href="replace.html#fusion.algorithms.transformation.metafunctions.replace.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">T</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">replace</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id588843"></a><p class="title"><b>Table<EFBFBD>1.75.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">T</span></tt></td>
<td>Any
type</td>
<td>The type of the search and replacement objects</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.metafunctions.replace.expression_semantics"></a><h6>
<a name="id588939"></a>
<a href="replace.html#fusion.algorithms.transformation.metafunctions.replace.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="replace.html" title="replace"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">replace</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns the return type of
<a href="../functions/replace.html" title="replace"><tt class="computeroutput"><span class="identifier">replace</span></tt></a>.
</p>
<a name="fusion.algorithms.transformation.metafunctions.replace.complexity"></a><h6>
<a name="id589079"></a>
<a href="replace.html#fusion.algorithms.transformation.metafunctions.replace.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.transformation.metafunctions.replace.header"></a><h6>
<a name="id589111"></a>
<a href="replace.html#fusion.algorithms.transformation.metafunctions.replace.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">replace</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="transform.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="replace_if.html"><img src="../../../../images/next.png" alt="Next"></a>
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<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.metafunctions.replace_if"></a><a href="replace_if.html" title="replace_if">replace_if</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.metafunctions.replace_if.description"></a><h6>
<a name="id589238"></a>
<a href="replace_if.html#fusion.algorithms.transformation.metafunctions.replace_if.description">Description</a>
</h6>
<p>
Returns the result type of <a href="../functions/replace_if.html" title="replace_if"><tt class="computeroutput"><span class="identifier">replace_if</span></tt></a>, given the types
of the sequence, <a href="../../concepts/polymorphic_function_object.html" title="Polymorphic
Function Object">Polymorphic
Function Object</a> predicate and replacement object.
</p>
<a name="fusion.algorithms.transformation.metafunctions.replace_if.synopsis"></a><h6>
<a name="id589298"></a>
<a href="replace_if.html#fusion.algorithms.transformation.metafunctions.replace_if.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">F</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">replace_if</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id589433"></a><p class="title"><b>Table<EFBFBD>1.76.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">F</span></tt></td>
<td>A
model of unary <a href="../../concepts/polymorphic_function_object.html" title="Polymorphic
Function Object">Polymorphic
Function Object</a>
</td>
<td>Replacement predicate</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">T</span></tt></td>
<td>Any
type</td>
<td>The type of the replacement object</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.metafunctions.replace_if.expression_semantics"></a><h6>
<a name="id589558"></a>
<a href="replace_if.html#fusion.algorithms.transformation.metafunctions.replace_if.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="replace_if.html" title="replace_if"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">replace_if</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span><span class="identifier">F</span><span class="special">,</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns the return type of
<a href="../functions/replace_if.html" title="replace_if"><tt class="computeroutput"><span class="identifier">replace_if</span></tt></a>.
</p>
<a name="fusion.algorithms.transformation.metafunctions.replace_if.complexity"></a><h6>
<a name="id589708"></a>
<a href="replace_if.html#fusion.algorithms.transformation.metafunctions.replace_if.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.transformation.metafunctions.replace_if.header"></a><h6>
<a name="id589740"></a>
<a href="replace_if.html#fusion.algorithms.transformation.metafunctions.replace_if.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">replace_if</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
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<a accesskey="p" href="replace.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="remove.html"><img src="../../../../images/next.png" alt="Next"></a>
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<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.metafunctions.reverse"></a><a href="reverse.html" title="reverse">reverse</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.metafunctions.reverse.description"></a><h6>
<a name="id591178"></a>
<a href="reverse.html#fusion.algorithms.transformation.metafunctions.reverse.description">Description</a>
</h6>
<p>
Returns the result type of <a href="../functions/reverse.html" title="reverse"><tt class="computeroutput"><span class="identifier">reverse</span></tt></a>, given the input sequence
type.
</p>
<a name="fusion.algorithms.transformation.metafunctions.reverse.synopsis"></a><h6>
<a name="id591227"></a>
<a href="reverse.html#fusion.algorithms.transformation.metafunctions.reverse.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">reverse</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id591328"></a><p class="title"><b>Table<EFBFBD>1.79.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody><tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/bidirectional_sequence.html" title="Bidirectional
Sequence">Bidirectional
Sequence</a>
</td>
<td>Operation's argument</td>
</tr></tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.metafunctions.reverse.expression_semantics"></a><h6>
<a name="id591404"></a>
<a href="reverse.html#fusion.algorithms.transformation.metafunctions.reverse.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="reverse.html" title="reverse"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">reverse</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/bidirectional_sequence.html" title="Bidirectional
Sequence">Bidirectional
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a sequence with the
elements in the reverse order to <tt class="computeroutput"><span class="identifier">Sequence</span></tt>.
</p>
<a name="fusion.algorithms.transformation.metafunctions.reverse.complexity"></a><h6>
<a name="id591527"></a>
<a href="reverse.html#fusion.algorithms.transformation.metafunctions.reverse.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.transformation.metafunctions.reverse.header"></a><h6>
<a name="id591559"></a>
<a href="reverse.html#fusion.algorithms.transformation.metafunctions.reverse.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">reverse</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.metafunctions.transform"></a><a href="transform.html" title="transform">transform</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.metafunctions.transform.description"></a><h6>
<a name="id588045"></a>
<a href="transform.html#fusion.algorithms.transformation.metafunctions.transform.description">Description</a>
</h6>
<p>
Returns the result of type <a href="../functions/transform.html" title="transform"><tt class="computeroutput"><span class="identifier">transform</span></tt></a>, given the sequence
and <a href="../../concepts/polymorphic_function_object.html" title="Polymorphic
Function Object">Polymorphic
Function Object</a> types.
</p>
<a name="fusion.algorithms.transformation.metafunctions.transform.synopsis"></a><h6>
<a name="id588105"></a>
<a href="transform.html#fusion.algorithms.transformation.metafunctions.transform.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">F</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">transform</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id588224"></a><p class="title"><b>Table<EFBFBD>1.74.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">Sequence</span></tt></td>
<td>A
model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a><EFBFBD></td>
<td>Operation's argument</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">F</span></tt></td>
<td>A
model of unary <a href="../../concepts/polymorphic_function_object.html" title="Polymorphic
Function Object">Polymorphic
Function Object</a>
</td>
<td>Transformation function object</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithms.transformation.metafunctions.transform.expression_semantics"></a><h6>
<a name="id588330"></a>
<a href="transform.html#fusion.algorithms.transformation.metafunctions.transform.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="transform.html" title="transform"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">transform</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">F</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns a sequence with values
<tt class="computeroutput"><span class="identifier">F</span><span class="special">::</span><span class="identifier">apply</span><span class="special">&lt;</span><span class="identifier">E</span><span class="special">&gt;::</span><span class="identifier">type</span></tt> for each element type <tt class="computeroutput"><span class="identifier">E</span></tt> in <tt class="computeroutput"><span class="identifier">Sequence</span></tt>.
</p>
<a name="fusion.algorithms.transformation.metafunctions.transform.complexity"></a><h6>
<a name="id588516"></a>
<a href="transform.html#fusion.algorithms.transformation.metafunctions.transform.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.transformation.metafunctions.transform.header"></a><h6>
<a name="id588548"></a>
<a href="transform.html#fusion.algorithms.transformation.metafunctions.transform.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">transform</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="filter_if.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="replace.html"><img src="../../../../images/next.png" alt="Next"></a>
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<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithms.transformation.metafunctions.zip"></a><a href="zip.html" title="zip">zip</a></h5></div></div></div>
<a name="fusion.algorithms.transformation.metafunctions.zip.description"></a><h6>
<a name="id595251"></a>
<a href="zip.html#fusion.algorithms.transformation.metafunctions.zip.description">Description</a>
</h6>
<p>
Zips sequences together to form a single sequence, whos members are tuples
of the members of the component sequences.
</p>
<a name="fusion.algorithms.transformation.metafunctions.zip.synopsis"></a><h6>
<a name="id595285"></a>
<a href="zip.html#fusion.algorithms.transformation.metafunctions.zip.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence1</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">Sequence2</span><span class="special">,</span>
<span class="special">...</span>
<span class="keyword">typename</span> <span class="identifier">SequenceN</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">zip</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<a name="fusion.algorithms.transformation.metafunctions.zip.expression_semantics"></a><h6>
<a name="id595437"></a>
<a href="zip.html#fusion.algorithms.transformation.metafunctions.zip.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="zip.html" title="zip"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">zip</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence1</span><span class="special">,</span> <span class="identifier">Sequence2</span><span class="special">,</span> <span class="special">...</span> <span class="identifier">SequenceN</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of the most restrictive
traversal category of sequences <tt class="computeroutput"><span class="identifier">Sequence1</span></tt>
to <tt class="computeroutput"><span class="identifier">SequenceN</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Return a sequence containing
tuples of elements from each sequence. For example, applying zip to tuples
<tt class="computeroutput"><span class="special">(</span><span class="number">1</span><span class="special">,</span><EFBFBD><span class="number">2</span><span class="special">,</span><EFBFBD><span class="number">3</span><span class="special">)</span></tt> and <tt class="computeroutput"><span class="special">(</span><span class="char">'a'</span><span class="special">,</span><EFBFBD><span class="char">'b'</span><span class="special">,</span><EFBFBD><span class="char">'c'</span><span class="special">)</span></tt> would
return <tt class="computeroutput"><span class="special">((</span><span class="number">1</span><span class="special">,</span><EFBFBD><span class="char">'a'</span><span class="special">),(</span><span class="number">2</span><span class="special">,</span><EFBFBD><span class="char">'b'</span><span class="special">),(</span><span class="number">3</span><span class="special">,</span><EFBFBD><span class="char">'c'</span><span class="special">))</span></tt>
</p>
<a name="fusion.algorithms.transformation.metafunctions.zip.complexity"></a><h6>
<a name="id595746"></a>
<a href="zip.html#fusion.algorithms.transformation.metafunctions.zip.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithms.transformation.metafunctions.zip.header"></a><h6>
<a name="id595777"></a>
<a href="zip.html#fusion.algorithms.transformation.metafunctions.zip.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">zip</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
</div>
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<p>
This section summarizes significant changes to the Fusion library.
</p>
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<title>Extension</title>
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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="fusion.extension"></a><a href="extension.html" title="Extension">Extension</a></h2></div></div></div>
<p>
The Fusion library is designed to be extensible, new sequences types can easily
be added. In fact, the library support for <tt class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span></tt>,
<tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">array</span></tt> and <a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a>
sequences is entirely provided using the extension mechanism.
</p>
<p>
The process for adding a new sequence type to Fusion is:
</p>
<div class="orderedlist"><ol type="1">
<li>
Enable the <a href="notes.html#fusion.notes.tag_dispatching"><span class="emphasis"><em>tag dispatching</em></span></a>
mechanism used by Fusion for your sequence type
</li>
<li>
Design an iterator type for the sequence
</li>
<li>
Provide specialized behaviour for the intrinsic operations of the new Fusion
sequence
</li>
</ol></div>
<a name="fusion.extension.our_example"></a><h3>
<a name="id606290"></a>
<a href="extension.html#fusion.extension.our_example">Our example</a>
</h3>
<p>
In order to illustrate enabling a new sequence type for use with Fusion, we
are going to use the type:
</p>
<pre class="programlisting">
<span class="keyword">namespace</span> <span class="identifier">example</span>
<span class="special">{</span>
<span class="keyword">struct</span> <span class="identifier">example_struct</span>
<span class="special">{</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">name</span><span class="special">;</span>
<span class="keyword">int</span> <span class="identifier">age</span><span class="special">;</span>
<span class="identifier">example_struct</span><span class="special">(</span>
<span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&amp;</span> <span class="identifier">n</span><span class="special">,</span>
<span class="keyword">int</span> <span class="identifier">a</span><span class="special">)</span>
<span class="special">:</span> <span class="identifier">name</span><span class="special">(</span><span class="identifier">n</span><span class="special">),</span> <span class="identifier">age</span><span class="special">(</span><span class="identifier">a</span><span class="special">)</span>
<span class="special">{}</span>
<span class="special">};</span>
<span class="special">}</span>
</pre>
<p>
We are going to pretend that this type has been provided by a 3rd party library,
and therefore cannot be modified. We shall work through all the necessary steps
to enable <tt class="computeroutput"><span class="identifier">example_struct</span></tt> to
serve as an <a href="sequences/concepts/associative_sequence.html" title="Associative
Sequence">Associative
Sequence</a> as described in the <a href="quick_start.html" title="Quick Start">Quick
Start</a> guide.
</p>
<a name="fusion.extension.enabling_tag_dispatching"></a><h3>
<a name="id606572"></a>
<a href="extension.html#fusion.extension.enabling_tag_dispatching">Enabling Tag Dispatching</a>
</h3>
<p>
The Fusion extensibility mechanism uses <a href="notes.html#fusion.notes.tag_dispatching"><span class="emphasis"><em>tag
dispatching</em></span></a> to call the correct code for a given sequence
type. In order to exploit the tag dispatching mechanism we must first declare
a new tag type for the mechanism to use. For example:
</p>
<pre class="programlisting">
<span class="keyword">namespace</span> <span class="identifier">example</span> <span class="special">{</span>
<span class="keyword">struct</span> <span class="identifier">example_sequence_tag</span><span class="special">;</span> <span class="comment">// Only definition needed
</span><span class="special">}</span>
</pre>
<p>
Next we need to enable the <tt class="computeroutput"><span class="identifier">traits</span><span class="special">::</span><span class="identifier">tag_of</span></tt>
metafunction to return our newly chosen tag type for operations involving our
sequence. This is done by specializing <tt class="computeroutput"><span class="identifier">traits</span><span class="special">::</span><span class="identifier">tag_of</span></tt>
for our sequence type.
</p>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">support</span><span class="special">/</span><span class="identifier">tag_of_fwd</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">fusion</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">traits</span> <span class="special">{</span>
<span class="keyword">template</span><span class="special">&lt;&gt;</span>
<span class="keyword">struct</span> <span class="identifier">tag_of</span><span class="special">&lt;</span><span class="identifier">example_struct</span><span class="special">&gt;</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="identifier">example</span><span class="special">::</span><span class="identifier">example_sequence_tag</span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
<span class="special">}}}</span>
</pre>
<p>
<tt class="computeroutput"><span class="identifier">traits</span><span class="special">::</span><span class="identifier">tag_of</span></tt> also has a second template argument,
that can be used in conjuction with <tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">enable_if</span></tt>
to provide tag support for groups of related types. This feature is not necessary
for our sequence, but for an example see the code in:
</p>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">sequence</span><span class="special">/</span><span class="identifier">adapted</span><span class="special">/</span><span class="identifier">mpl</span><span class="special">/</span><span class="identifier">tag_of</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.extension.designing_a_suitable_iterator"></a><h3>
<a name="id607064"></a>
<a href="extension.html#fusion.extension.designing_a_suitable_iterator">Designing a
suitable iterator</a>
</h3>
<p>
We need an iterator to describe positions, and provide access to the data within
our sequence. As it is straightforward to do, we are going to provide a random
access iterator in our example.
</p>
<p>
We will use a simple design, in which the 2 members of <tt class="computeroutput"><span class="identifier">example_struct</span></tt>
are given numbered indices, 0 for <tt class="computeroutput"><span class="identifier">name</span></tt>
and 1 for <tt class="computeroutput"><span class="identifier">age</span></tt> respectively.
</p>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Struct</span><span class="special">,</span> <span class="keyword">int</span> <span class="identifier">Pos</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">example_struct_iterator</span>
<span class="special">:</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">fusion</span><span class="special">::</span><span class="identifier">iterator_base</span><span class="special">&lt;</span><span class="identifier">example_struct_iterator</span><span class="special">&lt;</span><span class="identifier">Struct</span><span class="special">,</span> <span class="identifier">Pos</span><span class="special">&gt;</span> <span class="special">&gt;</span>
<span class="special">{</span>
<span class="identifier">BOOST_STATIC_ASSERT</span><span class="special">(</span><span class="identifier">Pos</span> <span class="special">&gt;=</span><span class="number">0</span> <span class="special">&amp;&amp;</span> <span class="identifier">Pos</span> <span class="special">&lt;</span> <span class="number">3</span><span class="special">);</span>
<span class="keyword">typedef</span> <span class="identifier">Struct</span> <span class="identifier">struct_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">int_</span><span class="special">&lt;</span><span class="identifier">Pos</span><span class="special">&gt;</span> <span class="identifier">index</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">fusion</span><span class="special">::</span><span class="identifier">random_access_traversal_tag</span> <span class="identifier">category</span><span class="special">;</span>
<span class="identifier">example_struct_iterator</span><span class="special">(</span><span class="identifier">Struct</span><span class="special">&amp;</span> <span class="identifier">str</span><span class="special">)</span>
<span class="special">:</span> <span class="identifier">struct_</span><span class="special">(</span><span class="identifier">str</span><span class="special">)</span> <span class="special">{}</span>
<span class="identifier">Struct</span><span class="special">&amp;</span> <span class="identifier">struct_</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<p>
A quick summary of the details of our iterator:
</p>
<div class="orderedlist"><ol type="1">
<li>
The iterator is parameterized by the type it is iterating over, and the index
of the current element.
</li>
<li>
The typedefs <tt class="computeroutput"><span class="identifier">struct_type</span></tt>
and <tt class="computeroutput"><span class="identifier">index</span></tt> provide convenient
access to information we will need later in the implementation.
</li>
<li>
The typedef <tt class="computeroutput"><span class="identifier">category</span></tt> allows
the <tt class="computeroutput"><span class="identifier">traits</span><span class="special">::</span><a href="support/category_of.html" title="category_of"><tt class="computeroutput"><span class="identifier">category_of</span></tt></a></tt>
metafunction to establish the traversal category of the iterator.
</li>
<li>
The constructor stores a reference to the <tt class="computeroutput"><span class="identifier">example_struct</span></tt>
being iterated over.
</li>
</ol></div>
<p>
We also need to enable <a href="notes.html#fusion.notes.tag_dispatching"><span class="emphasis"><em>tag
dispatching</em></span></a> for our iterator type, with another specialization
of <tt class="computeroutput"><span class="identifier">traits</span><span class="special">::</span><span class="identifier">tag_of</span></tt>.
</p>
<p>
In isolation, the iterator implementation is pretty dry. Things should become
clearer as we add features to our implementation.
</p>
<a name="fusion.extension.a_first_couple_of_instructive_features"></a><h3>
<a name="id607700"></a>
<a href="extension.html#fusion.extension.a_first_couple_of_instructive_features">A first
couple of instructive features</a>
</h3>
<p>
To start with, we will get the <a href="iterators/metafunctions/value_of.html" title="value_of"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">value_of</span></tt></a> metafunction working. To
do this, we provide a specialization of the <tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">fusion</span><span class="special">::</span><span class="identifier">extension</span><span class="special">::</span><span class="identifier">value_of_impl</span></tt>
template for our iterator's tag type.
</p>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;&gt;</span>
<span class="keyword">struct</span> <span class="identifier">value_of_impl</span><span class="special">&lt;</span><span class="identifier">example</span><span class="special">::</span><span class="identifier">example_struct_iterator_tag</span><span class="special">&gt;</span>
<span class="special">{</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Iterator</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">apply</span><span class="special">;</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Struct</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">apply</span><span class="special">&lt;</span><span class="identifier">example</span><span class="special">::</span><span class="identifier">example_struct_iterator</span><span class="special">&lt;</span><span class="identifier">Struct</span><span class="special">,</span> <span class="number">0</span><span class="special">&gt;</span> <span class="special">&gt;</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Struct</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">apply</span><span class="special">&lt;</span><span class="identifier">example</span><span class="special">::</span><span class="identifier">example_struct_iterator</span><span class="special">&lt;</span><span class="identifier">Struct</span><span class="special">,</span> <span class="number">1</span><span class="special">&gt;</span> <span class="special">&gt;</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="keyword">int</span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
<span class="special">};</span>
</pre>
<p>
The implementation itself is pretty simple, it just uses 2 partial specializations
to provide the type of the 2 different members of <tt class="computeroutput"><span class="identifier">example_struct</span></tt>,
based on the index of the iterator.
</p>
<p>
To understand how <tt class="computeroutput"><span class="identifier">value_of_impl</span></tt>
is used by the library we will look at the implementation of <a href="iterators/metafunctions/value_of.html" title="value_of"><tt class="computeroutput"><span class="identifier">value_of</span></tt></a>:
</p>
<pre class="programlisting">
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Iterator</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <a href="iterators/metafunctions/value_of.html" title="value_of"><tt class="computeroutput"><span class="identifier">value_of</span></tt></a>
<span class="special">:</span> <span class="identifier">extension</span><span class="special">::</span><span class="identifier">value_of_impl</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">tag_of</span><span class="special">&lt;</span><span class="identifier">Iterator</span><span class="special">&gt;::</span><span class="identifier">type</span><span class="special">&gt;::</span>
<span class="keyword">template</span> <span class="identifier">apply</span><span class="special">&lt;</span><span class="identifier">Iterator</span><span class="special">&gt;</span>
<span class="special">{};</span>
</pre>
<p>
So <a href="iterators/metafunctions/value_of.html" title="value_of"><tt class="computeroutput"><span class="identifier">value_of</span></tt></a>
uses <a href="notes.html#fusion.notes.tag_dispatching"><span class="emphasis"><em>tag dispatching</em></span></a>
to select an MPL Metafunction Class to provide its functionality. You will
notice this pattern throughout the implementation of Fusion.
</p>
<p>
Ok, lets enable dereferencing of our iterator. In this case we must provide
a suitable specialization of <tt class="computeroutput"><span class="identifier">deref_impl</span></tt>.
</p>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;&gt;</span>
<span class="keyword">struct</span> <span class="identifier">deref_impl</span><span class="special">&lt;</span><span class="identifier">example</span><span class="special">::</span><span class="identifier">example_struct_iterator_tag</span><span class="special">&gt;</span>
<span class="special">{</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Iterator</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">apply</span><span class="special">;</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Struct</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">apply</span><span class="special">&lt;</span><span class="identifier">example</span><span class="special">::</span><span class="identifier">example_struct_iterator</span><span class="special">&lt;</span><span class="identifier">Struct</span><span class="special">,</span> <span class="number">0</span><span class="special">&gt;</span> <span class="special">&gt;</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">mpl</span><span class="special">::</span><span class="identifier">if_</span><span class="special">&lt;</span>
<span class="identifier">is_const</span><span class="special">&lt;</span><span class="identifier">Struct</span><span class="special">&gt;,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="keyword">const</span><span class="special">&amp;,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&amp;&gt;::</span><span class="identifier">type</span> <span class="identifier">type</span><span class="special">;</span>
<span class="keyword">static</span> <span class="identifier">type</span>
<span class="identifier">call</span><span class="special">(</span><span class="identifier">example</span><span class="special">::</span><span class="identifier">example_struct_iterator</span><span class="special">&lt;</span><span class="identifier">Struct</span><span class="special">,</span> <span class="number">0</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">it</span><span class="special">)</span>
<span class="special">{</span>
<span class="keyword">return</span> <span class="identifier">it</span><span class="special">.</span><span class="identifier">struct_</span><span class="special">.</span><span class="identifier">name</span><span class="special">;</span>
<span class="special">}</span>
<span class="special">};</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Struct</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">apply</span><span class="special">&lt;</span><span class="identifier">example</span><span class="special">::</span><span class="identifier">example_struct_iterator</span><span class="special">&lt;</span><span class="identifier">Struct</span><span class="special">,</span> <span class="number">1</span><span class="special">&gt;</span> <span class="special">&gt;</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">mpl</span><span class="special">::</span><span class="identifier">if_</span><span class="special">&lt;</span>
<span class="identifier">is_const</span><span class="special">&lt;</span><span class="identifier">Struct</span><span class="special">&gt;,</span> <span class="keyword">int</span> <span class="keyword">const</span><span class="special">&amp;,</span> <span class="keyword">int</span><span class="special">&amp;&gt;::</span><span class="identifier">type</span> <span class="identifier">type</span><span class="special">;</span>
<span class="keyword">static</span> <span class="identifier">type</span>
<span class="identifier">call</span><span class="special">(</span><span class="identifier">example</span><span class="special">::</span><span class="identifier">example_struct_iterator</span><span class="special">&lt;</span><span class="identifier">Struct</span><span class="special">,</span> <span class="number">1</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">it</span><span class="special">)</span>
<span class="special">{</span>
<span class="keyword">return</span> <span class="identifier">it</span><span class="special">.</span><span class="identifier">struct_</span><span class="special">.</span><span class="identifier">age</span><span class="special">;</span>
<span class="special">}</span>
<span class="special">};</span>
<span class="special">};</span>
<span class="special">}</span>
</pre>
<p>
The use of <tt class="computeroutput"><span class="identifier">deref_impl</span></tt> is very
similar to that of <tt class="computeroutput"><span class="identifier">value_of_impl</span></tt>,
but it also provides some runtime functionality this time via the <tt class="computeroutput"><span class="identifier">call</span></tt> static member function. To see how
<tt class="computeroutput"><span class="identifier">deref_impl</span></tt> is used, lets have
a look at the implementation of <a href="iterators/functions/deref.html" title="deref"><tt class="computeroutput"><span class="identifier">deref</span></tt></a>:
</p>
<pre class="programlisting">
<span class="keyword">namespace</span> <span class="identifier">result_of</span>
<span class="special">{</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Iterator</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <a href="iterators/functions/deref.html" title="deref"><tt class="computeroutput"><span class="identifier">deref</span></tt></a>
<span class="special">:</span> <span class="identifier">extension</span><span class="special">::</span><span class="identifier">deref_impl</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">tag_of</span><span class="special">&lt;</span><span class="identifier">Iterator</span><span class="special">&gt;::</span><span class="identifier">type</span><span class="special">&gt;::</span>
<span class="keyword">template</span> <span class="identifier">apply</span><span class="special">&lt;</span><span class="identifier">Iterator</span><span class="special">&gt;</span>
<span class="special">{};</span>
<span class="special">}</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Iterator</span><span class="special">&gt;</span>
<span class="keyword">typename</span> <span class="identifier">result_of</span><span class="special">::</span><span class="identifier">deref</span><span class="special">&lt;</span><span class="identifier">Iterator</span><span class="special">&gt;::</span><span class="identifier">type</span>
<a href="iterators/functions/deref.html" title="deref"><tt class="computeroutput"><span class="identifier">deref</span></tt></a><span class="special">(</span><span class="identifier">Iterator</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">i</span><span class="special">)</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="identifier">result_of</span><span class="special">::</span><span class="identifier">deref</span><span class="special">&lt;</span><span class="identifier">Iterator</span><span class="special">&gt;</span> <span class="identifier">deref_meta</span><span class="special">;</span>
<span class="keyword">return</span> <span class="identifier">deref_meta</span><span class="special">::</span><span class="identifier">call</span><span class="special">(</span><span class="identifier">i</span><span class="special">);</span>
<span class="special">}</span>
</pre>
<p>
So again <a href="iterators/metafunctions/deref.html" title="deref"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">deref</span></tt></a> uses <a href="notes.html#fusion.notes.tag_dispatching"><span class="emphasis"><em>tag
dispatching</em></span></a> in exactly the same way as the <a href="iterators/metafunctions/value_of.html" title="value_of"><tt class="computeroutput"><span class="identifier">value_of</span></tt></a> implementation. The runtime
functionality used by <a href="iterators/functions/deref.html" title="deref"><tt class="computeroutput"><span class="identifier">deref</span></tt></a> is provided by the <tt class="computeroutput"><span class="identifier">call</span></tt> static function of the selected MPL
Metafunction Class.
</p>
<p>
The actual implementation of <tt class="computeroutput"><span class="identifier">deref_impl</span></tt>
is slightly more complex than that of <tt class="computeroutput"><span class="identifier">value_of_impl</span></tt>.
We also need to implement the <tt class="computeroutput"><span class="identifier">call</span></tt>
function, which returns a reference to the appropriate member of the underlying
sequence. We also require a little bit of metaprogramming to return <tt class="computeroutput"><span class="keyword">const</span></tt> references if the underlying sequence
is const.
</p>
<div class="note"><table border="0" summary="Note">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../images/note.png"></td>
<th align="left">Note</th>
</tr>
<tr><td colspan="2" align="left" valign="top"><p>
Although there is a fair amount of left to do to produce a fully fledged
Fusion sequence, <a href="iterators/metafunctions/value_of.html" title="value_of"><tt class="computeroutput"><span class="identifier">value_of</span></tt></a> and <a href="iterators/functions/deref.html" title="deref"><tt class="computeroutput"><span class="identifier">deref</span></tt></a> illustrate all the signficant
concepts required. The remainder of the process is very repetitive, simply
requiring implementation of a suitable <tt class="computeroutput"><span class="identifier">xxxx_impl</span></tt>
for each feature <tt class="computeroutput"><span class="identifier">xxxx</span></tt>.
</p></td></tr>
</table></div>
<a name="fusion.extension.implementing_the_remaining_iterator_functionality"></a><h3>
<a name="id609940"></a>
<a href="extension.html#fusion.extension.implementing_the_remaining_iterator_functionality">Implementing
the remaining iterator functionality</a>
</h3>
<p>
Ok, now we have seen the way <a href="iterators/metafunctions/value_of.html" title="value_of"><tt class="computeroutput"><span class="identifier">value_of</span></tt></a> and <a href="iterators/functions/deref.html" title="deref"><tt class="computeroutput"><span class="identifier">deref</span></tt></a> work, everything else will work
in pretty much the same way. Lets start with forward iteration, by providing
a <tt class="computeroutput"><span class="identifier">next_impl</span></tt>:
</p>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;&gt;</span>
<span class="keyword">struct</span> <span class="identifier">next_impl</span><span class="special">&lt;</span><span class="identifier">example</span><span class="special">::</span><span class="identifier">example_struct_iterator_tag</span><span class="special">&gt;</span>
<span class="special">{</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Iterator</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">apply</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">Iterator</span><span class="special">::</span><span class="identifier">struct_type</span> <span class="identifier">struct_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">Iterator</span><span class="special">::</span><span class="identifier">index</span> <span class="identifier">index</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">example</span><span class="special">::</span><span class="identifier">example_struct_iterator</span><span class="special">&lt;</span><span class="identifier">struct_type</span><span class="special">,</span> <span class="identifier">index</span><span class="special">::</span><span class="identifier">value</span> <span class="special">+</span> <span class="number">1</span><span class="special">&gt;</span> <span class="identifier">type</span><span class="special">;</span>
<span class="keyword">static</span> <span class="identifier">type</span>
<span class="identifier">call</span><span class="special">(</span><span class="identifier">Iterator</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">i</span><span class="special">)</span>
<span class="special">{</span>
<span class="keyword">return</span> <span class="identifier">type</span><span class="special">(</span><span class="identifier">i</span><span class="special">.</span><span class="identifier">struct_</span><span class="special">);</span>
<span class="special">}</span>
<span class="special">};</span>
<span class="special">};</span>
</pre>
<p>
This should be very familiar from our <tt class="computeroutput"><span class="identifier">deref_impl</span></tt>
implementation, we will be using this approach again and again now. Our design
is simply to increment the <tt class="computeroutput"><span class="identifier">index</span></tt>
counter to move on to the next element. The various other iterator manipulations
we need to perform will all just involve simple calculations with the <tt class="computeroutput"><span class="identifier">index</span></tt> variables.
</p>
<p>
We also need to provide a suitable <tt class="computeroutput"><span class="identifier">equal_to_impl</span></tt>
so that iterators can be correctly compared. A <a href="iterators/concepts/bidirectional_iterator.html" title="Bidirectional
Iterator">Bidirectional
Iterator</a> will also need an implementation of <tt class="computeroutput"><span class="identifier">prior_impl</span></tt>.
For a <a href="iterators/concepts/random_access_iterator.html" title="Random
Access Iterator">Random
Access Iterator</a><EFBFBD><tt class="computeroutput"><span class="identifier">distance_impl</span></tt>
and <tt class="computeroutput"><span class="identifier">advance_impl</span></tt> also need
to be provided in order to satisfy the necessary complexity guarantees. As
our iterator is a <a href="iterators/concepts/random_access_iterator.html" title="Random
Access Iterator">Random
Access Iterator</a> we will have to implement all of these functions.
</p>
<p>
Full implementations of <tt class="computeroutput"><span class="identifier">prior_impl</span></tt>,
<tt class="computeroutput"><span class="identifier">advance_impl</span></tt>, <tt class="computeroutput"><span class="identifier">distance_impl</span></tt> and <tt class="computeroutput"><span class="identifier">equal_to_impl</span></tt>
are provided in the example code.
</p>
<a name="fusion.extension.implementing_the_intrinsic_functions_of_the_sequence"></a><h3>
<a name="id610564"></a>
<a href="extension.html#fusion.extension.implementing_the_intrinsic_functions_of_the_sequence">Implementing
the intrinsic functions of the sequence</a>
</h3>
<p>
In order that Fusion can correctly identify our sequence as a Fusion sequence,
we need to enable <tt class="computeroutput"><span class="identifier">is_sequence</span></tt>
for our sequence type. As usual we just create an <tt class="computeroutput"><span class="identifier">impl</span></tt>
type specialized for our sequence tag:
</p>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;&gt;</span>
<span class="keyword">struct</span> <span class="identifier">is_sequence_impl</span><span class="special">&lt;</span><span class="identifier">example</span><span class="special">::</span><span class="identifier">example_sequence_tag</span><span class="special">&gt;</span>
<span class="special">{</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">apply</span> <span class="special">:</span> <span class="identifier">mpl</span><span class="special">::</span><span class="identifier">true_</span> <span class="special">{};</span>
<span class="special">};</span>
</pre>
<p>
We've some similar formalities to complete, providing <tt class="computeroutput"><span class="identifier">category_of_impl</span></tt>
so Fusion can correctly identify our sequence type, and <tt class="computeroutput"><span class="identifier">is_view_impl</span></tt>
so Fusion can correctly identify our sequence as not being a <a href="sequences/views.html" title="Views">View</a>
type. Implementations are provide in the example code.
</p>
<p>
Now we've completed some formalities, on to more interesting features. Lets
get <a href="sequences/intrinsics/functions/begin.html" title="begin"><tt class="computeroutput"><span class="identifier">begin</span></tt></a> working so that we can get an
iterator to start accessing the data in our sequence.
</p>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;&gt;</span>
<span class="keyword">struct</span> <span class="identifier">begin_impl</span><span class="special">&lt;</span><span class="identifier">example</span><span class="special">::</span><span class="identifier">example_sequence_tag</span><span class="special">&gt;</span>
<span class="special">{</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">apply</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="identifier">example</span><span class="special">::</span><span class="identifier">example_struct_iterator</span><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="number">0</span><span class="special">&gt;</span> <span class="identifier">type</span><span class="special">;</span>
<span class="keyword">static</span> <span class="identifier">type</span>
<span class="identifier">call</span><span class="special">(</span><span class="identifier">Sequence</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">)</span>
<span class="special">{</span>
<span class="keyword">return</span> <span class="identifier">type</span><span class="special">(</span><span class="identifier">seq</span><span class="special">);</span>
<span class="special">}</span>
<span class="special">};</span>
<span class="special">};</span>
</pre>
<p>
The implementation uses the same ideas we have applied throughout, in this
case we are just creating one of the iterators we developed earlier, pointing
to the first element in the sequence. The implementation of <a href="sequences/intrinsics/functions/end.html" title="end"><tt class="computeroutput"><span class="identifier">end</span></tt></a> is very similar, and is provided
in the example code.
</p>
<p>
For our <a href="sequences/concepts/random_access_sequence.html" title="Random
Access Sequence">Random
Access Sequence</a> we will also need to implement <tt class="computeroutput"><span class="identifier">size_impl</span></tt>,
<tt class="computeroutput"><span class="identifier">value_at_impl</span></tt> and <tt class="computeroutput"><span class="identifier">at_impl</span></tt>.
</p>
<a name="fusion.extension.enabling_our_type_as_an_associative_container"></a><h3>
<a name="id611146"></a>
<a href="extension.html#fusion.extension.enabling_our_type_as_an_associative_container">Enabling
our type as an associative container</a>
</h3>
<p>
In order for <tt class="computeroutput"><span class="identifier">example_struct</span></tt>
to serve as an associative container, we need to enable 3 lookup features,
<a href="sequences/intrinsics/functions/at_key.html" title="at_key"><tt class="computeroutput"><span class="identifier">at_key</span></tt></a>, <a href="sequences/intrinsics/metafunctions/value_at_key.html" title="value_at_key"><tt class="computeroutput"><span class="identifier">value_at_key</span></tt></a> and <a href="sequences/intrinsics/functions/has_key.html" title="has_key"><tt class="computeroutput"><span class="identifier">has_key</span></tt></a>. We also need to provide an
implementation of the <tt class="computeroutput"><span class="identifier">is_associative</span></tt>
trait so that our sequence can be correctly identified as an associative container.
</p>
<p>
To implement <tt class="computeroutput"><span class="identifier">at_key_impl</span></tt> we
need to associate the <tt class="computeroutput"><span class="identifier">fields</span><span class="special">::</span><span class="identifier">age</span></tt> and
<tt class="computeroutput"><span class="identifier">fields</span><span class="special">::</span><span class="identifier">age</span></tt> types described in the <a href="quick_start.html" title="Quick Start">Quick
Start</a> guide with the appropriate members of <tt class="computeroutput"><span class="identifier">example_struct</span></tt>.
Our implementation is as follows:
</p>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;&gt;</span>
<span class="keyword">struct</span> <span class="identifier">at_key_impl</span><span class="special">&lt;</span><span class="identifier">example</span><span class="special">::</span><span class="identifier">example_sequence_tag</span><span class="special">&gt;</span>
<span class="special">{</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Key</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">apply</span><span class="special">;</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">apply</span><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">fields</span><span class="special">::</span><span class="identifier">name</span><span class="special">&gt;</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">mpl</span><span class="special">::</span><span class="identifier">if_</span><span class="special">&lt;</span>
<span class="identifier">is_const</span><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;,</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="keyword">const</span><span class="special">&amp;,</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&amp;&gt;::</span><span class="identifier">type</span> <span class="identifier">type</span><span class="special">;</span>
<span class="keyword">static</span> <span class="identifier">type</span>
<span class="identifier">call</span><span class="special">(</span><span class="identifier">Sequence</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">)</span>
<span class="special">{</span>
<span class="keyword">return</span> <span class="identifier">seq</span><span class="special">.</span><span class="identifier">name</span><span class="special">;</span>
<span class="special">};</span>
<span class="special">};</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">apply</span><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">fields</span><span class="special">::</span><span class="identifier">age</span><span class="special">&gt;</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">mpl</span><span class="special">::</span><span class="identifier">if_</span><span class="special">&lt;</span>
<span class="identifier">is_const</span><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;,</span>
<span class="keyword">int</span> <span class="keyword">const</span><span class="special">&amp;,</span>
<span class="keyword">int</span><span class="special">&amp;&gt;::</span><span class="identifier">type</span> <span class="identifier">type</span><span class="special">;</span>
<span class="keyword">static</span> <span class="identifier">type</span>
<span class="identifier">call</span><span class="special">(</span><span class="identifier">Sequence</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">)</span>
<span class="special">{</span>
<span class="keyword">return</span> <span class="identifier">seq</span><span class="special">.</span><span class="identifier">age</span><span class="special">;</span>
<span class="special">};</span>
<span class="special">};</span>
<span class="special">};</span>
</pre>
<p>
Its all very similar to the implementations we've seen previously, such as
<tt class="computeroutput"><span class="identifier">deref_impl</span></tt> and <tt class="computeroutput"><span class="identifier">value_of_impl</span></tt>. Instead of identifying the
members by index or position, we are now selecting them using the types <tt class="computeroutput"><span class="identifier">fields</span><span class="special">::</span><span class="identifier">name</span></tt> and <tt class="computeroutput"><span class="identifier">fields</span><span class="special">::</span><span class="identifier">age</span></tt>. The
implementations of <tt class="computeroutput"><span class="identifier">value_at_key_impl</span></tt>
and <tt class="computeroutput"><span class="identifier">has_key_impl</span></tt> are equally
straightforward, and are provided in the example code, along with an implementation
of <tt class="computeroutput"><span class="identifier">is_associative_impl</span></tt>.
</p>
<a name="fusion.extension.summary"></a><h3>
<a name="id612120"></a>
<a href="extension.html#fusion.extension.summary">Summary</a>
</h3>
<p>
We've now worked through the entire process for adding a new random access
sequence and we've also enabled our type to serve as an associative container.
The implementation was slightly longwinded, but followed a simple repeating
pattern.
</p>
<p>
The support for <tt class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span></tt>, <a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a>
sequences, and <tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">array</span></tt> all use the same approach, and provide
additional examples of the approach for a variety of types.
</p>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="fusion.introduction"></a><a href="introduction.html" title="Introduction">Introduction</a></h2></div></div></div>
<p>
An advantage other languages such as Python and Lisp/ Scheme, ML and Haskell,
etc., over C++ is the ability to have heterogeneous containers that can hold
arbitrary element types. All the containers in the standard library can only
hold a specific type. A <tt class="computeroutput"><span class="identifier">vector</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&gt;</span></tt>
can only hold <tt class="computeroutput"><span class="keyword">int</span></tt>s. A <tt class="computeroutput"><span class="identifier">list</span><span class="special">&lt;</span><span class="identifier">X</span><span class="special">&gt;</span></tt> can
only hold elements of type <tt class="computeroutput"><span class="identifier">X</span></tt>,
and so on.
</p>
<p>
True, you can use inheritance to make the containers hold different types,
related through subclassing. However, you have to hold the objects through
a pointer or smart reference of some sort. Doing this, you'll have to rely
on virtual functions to provide polymorphic behavior since the actual type
is erased as soon as you store a pointer to a derived class to a pointer to
its base. The held objects must be related: you cannot hold objects of unrelated
types such as <tt class="computeroutput"><span class="keyword">char</span></tt>, <tt class="computeroutput"><span class="keyword">int</span></tt>, <tt class="computeroutput"><span class="keyword">class</span><EFBFBD><span class="identifier">X</span></tt>, <tt class="computeroutput"><span class="keyword">float</span></tt>,
etc. Oh sure you can use something like <a href="http://boost.org/doc/html/any.html" target="_top">Boost.Any</a>
to hold arbitrary types, but then you pay more in terms of runtime costs and
due to the fact that you practically erased all type information, you'll have
to perform dangerous casts to get back the original type.
</p>
<p>
The <a href="http://www.boost.org/libs/tuple/doc/tuple_users_guide.html" target="_top">Boost.Tuple</a>
library written by <a href="http://www.boost.org/people/jaakko_jarvi.htm" target="_top">Jaakko
Jarvi</a> provides heterogeneous containers in C++. The <tt class="computeroutput"><span class="identifier">tuple</span></tt>
is a basic data structure that can hold heterogeneous types. It's a good first
step, but it's not complete. What's missing are the algorithms. It's nice that
we can store and retrieve data to and from tuples, pass them around as arguments
and return types. As it is, the <a href="http://www.boost.org/libs/tuple/doc/tuple_users_guide.html" target="_top">Boost.Tuple</a>
facility is already very useful. Yet, as soon as you use it more often, usage
patterns emerge. Eventually, you collect these patterns into algorithm libraries.
</p>
<p>
Hmmm, kinda reminds us of STL right? Right! Can you imagine how it would be
like if you used STL without the algorithms? Everyone will have to reinvent
their own <span class="emphasis"><em>algorithm</em></span> wheels.
</p>
<p>
Fusion is a library and a framework similar to both <a href="http://en.wikipedia.org/wiki/Standard_Template_Library" target="_top">STL</a>
and the boost <a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a>.
The structure is modeled after <a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a>,
which is modeled after <a href="http://en.wikipedia.org/wiki/Standard_Template_Library" target="_top">STL</a>.
It is named "fusion" because the library is reminiscent of the "fusion"
of compile time meta-programming with runtime programming. The library inherently
has some interesting flavors and characteristics of both <a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a>
and <a href="http://en.wikipedia.org/wiki/Standard_Template_Library" target="_top">STL</a>.
It lives in the twilight zone between compile time meta-programming and run
time programming. <a href="http://en.wikipedia.org/wiki/Standard_Template_Library" target="_top">STL</a>
containers work on values. MPL containers work on types. Fusion containers
work on both types and values.
</p>
<p>
Unlike <a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a>, Fusion
algorithms are lazy and non sequence-type preserving. What does that mean?
It means that when you operate on a sequence through a Fusion algorithm that
returns a sequence, the sequence returned may not be of the same class as the
original. This is by design. Runtime efficiency is given a high priority. Like
<a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a>, and unlike
<a href="http://en.wikipedia.org/wiki/Standard_Template_Library" target="_top">STL</a>,
fusion algorithms are functional in nature such that algorithms are non mutating
(no side effects). However, due to the high cost of returning full sequences
such as vectors and lists, <span class="emphasis"><em>Views</em></span> are returned from Fusion
algorithms instead. For example, the <a href="algorithms/transformation/functions/transform.html" title="transform"><tt class="computeroutput"><span class="identifier">transform</span></tt></a> algorithm does not actually
return a transformed version of the original sequence. <a href="algorithms/transformation/functions/transform.html" title="transform"><tt class="computeroutput"><span class="identifier">transform</span></tt></a> returns a <a href="sequences/views/transform_view.html" title="transform_view"><tt class="computeroutput"><span class="identifier">transform_view</span></tt></a>. This view holds a
reference to the original sequence plus the transform function. Iteration over
the <a href="sequences/views/transform_view.html" title="transform_view"><tt class="computeroutput"><span class="identifier">transform_view</span></tt></a>
will apply the transform function over the sequence elements on demand. This
<span class="emphasis"><em>lazy</em></span> evaluation scheme allows us to chain as many algorithms
as we want without incurring a high runtime penalty.
</p>
<p>
The <span class="emphasis"><em>lazy</em></span> evaluation scheme where algorithms return views
allows operations such as <a href="algorithms/transformation/functions/push_back.html" title="push_back"><tt class="computeroutput"><span class="identifier">push_back</span></tt></a> to be totally generic. In
Fusion, <a href="algorithms/transformation/functions/push_back.html" title="push_back"><tt class="computeroutput"><span class="identifier">push_back</span></tt></a> is actually a generic algorithm
that works on all sequences. Given an input sequence <tt class="computeroutput"><span class="identifier">s</span></tt>
and a value <tt class="computeroutput"><span class="identifier">x</span></tt>, Fusion's <a href="algorithms/transformation/functions/push_back.html" title="push_back"><tt class="computeroutput"><span class="identifier">push_back</span></tt></a> algorithm simply returns
a <a href="sequences/views/joint_view.html" title="joint_view"><tt class="computeroutput"><span class="identifier">joint_view</span></tt></a>:
a view that holds a reference to the original sequence <tt class="computeroutput"><span class="identifier">s</span></tt>
and the value <tt class="computeroutput"><span class="identifier">x</span></tt>. Functions
that were once sequence specific and need to be implemented N times over N
different sequences are now implemented only once.
</p>
<p>
Fusion provides full round compatibility with <a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a>.
Fusion sequences are fully conforming <a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a>
sequences and <a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a>
sequences are fully compatible with Fusion. You can work with Fusion sequences
on <a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a> if you
wish to work solely on types. In <a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a>,
Fusion sequences follow <a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a>'s
sequence-type preserving semantics (i.e. algorithms preserve the original sequence
type. e.g. transforming a vector returns a vector). You can also convert from
an <a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a> sequence
to a Fusion sequence. For example, there are times when it is convenient to
work solely on <a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a>
using pure <a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a>
sequences, then, convert them to Fusion sequences as a final step before actual
instantiation of real runtime objects with data. You have the best of both
worlds.
</p>
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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="fusion.iterators"></a><a href="iterators.html" title="Iterators">Iterators</a></h2></div></div></div>
<div class="toc"><dl>
<dt><span class="section"><a href="iterators/concepts.html">Concepts</a></span></dt>
<dt><span class="section"><a href="iterators/functions.html">Functions</a></span></dt>
<dt><span class="section"><a href="iterators/operators.html">Operators</a></span></dt>
<dt><span class="section"><a href="iterators/metafunctions.html">Metafunctions</a></span></dt>
</dl></div>
<p>
Like <a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a> and
<a href="http://en.wikipedia.org/wiki/Standard_Template_Library" target="_top">STL</a>,
iterators are a fundamental concept in Fusion. As with <a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a>
and <a href="http://en.wikipedia.org/wiki/Standard_Template_Library" target="_top">STL</a>
iterators describe positions, and provide access to data within an underlying
<a href="sequences.html" title="Sequences">Sequence</a>.
</p>
<a name="fusion.iterators.header"></a><h3>
<a name="id456415"></a>
<a href="iterators.html#fusion.iterators.header">Header</a>
</h3>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">iterator</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
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<div class="section" lang="en">
<div class="titlepage"><div><div><h3 class="title">
<a name="fusion.iterators.concepts"></a><a href="concepts.html" title="Concepts">Concepts</a></h3></div></div></div>
<div class="toc"><dl>
<dt><span class="section"><a href="concepts/forward_iterator.html">Forward
Iterator</a></span></dt>
<dt><span class="section"><a href="concepts/bidirectional_iterator.html">Bidirectional
Iterator</a></span></dt>
<dt><span class="section"><a href="concepts/random_access_iterator.html">Random
Access Iterator</a></span></dt>
</dl></div>
<p>
Fusion iterators are divided into different traversal categories. <a href="concepts/forward_iterator.html" title="Forward
Iterator">Forward
Iterator</a> is the most basic concept. <a href="concepts/bidirectional_iterator.html" title="Bidirectional
Iterator">Bidirectional
Iterator</a> is a refinement of <a href="concepts/forward_iterator.html" title="Forward
Iterator">Forward
Iterator</a>. <a href="concepts/random_access_iterator.html" title="Random
Access Iterator">Random
Access Iterator</a> is a refinement of <a href="concepts/bidirectional_iterator.html" title="Bidirectional
Iterator">Bidirectional
Iterator</a>.
</p>
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<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.iterators.concepts.bidirectional_iterator"></a><a href="bidirectional_iterator.html" title="Bidirectional
Iterator">Bidirectional
Iterator</a></h4></div></div></div>
<a name="fusion.iterators.concepts.bidirectional_iterator.description"></a><h5>
<a name="id459104"></a>
<a href="bidirectional_iterator.html#fusion.iterators.concepts.bidirectional_iterator.description">Description</a>
</h5>
<p>
A Bidirectional Iterator traverses a <a href="../../sequences.html" title="Sequences">Sequence</a>
allowing movement in either direction one element at a time.
</p>
<div class="variablelist">
<p class="title"><b>Notation</b></p>
<dl>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">i</span></tt></span></dt>
<dd>
A Bidirectional Iterator
</dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">I</span></tt></span></dt>
<dd>
A Bidirectional Iterator type
</dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">M</span></tt></span></dt>
<dd>
An <a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a>
integral constant
</dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">N</span></tt></span></dt>
<dd>
An integral constant
</dd>
</dl>
</div>
<a name="fusion.iterators.concepts.bidirectional_iterator.refinement_of"></a><h5>
<a name="id459230"></a>
<a href="bidirectional_iterator.html#fusion.iterators.concepts.bidirectional_iterator.refinement_of">Refinement
of</a>
</h5>
<p>
<a href="forward_iterator.html" title="Forward
Iterator">Forward Iterator</a>
</p>
<a name="fusion.iterators.concepts.bidirectional_iterator.expression_requirements"></a><h5>
<a name="id459272"></a>
<a href="bidirectional_iterator.html#fusion.iterators.concepts.bidirectional_iterator.expression_requirements">Expression
requirements</a>
</h5>
<p>
In addition to the requirements defined in <a href="forward_iterator.html" title="Forward
Iterator">Forward
Iterator</a>, the following expressions must be valid:
</p>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Expression</th>
<th>Return type</th>
<th>Runtime
Complexity</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><a href="../functions/next.html" title="next"><tt class="computeroutput"><span class="identifier">next</span></tt></a><span class="special">(</span><span class="identifier">i</span><span class="special">)</span></tt></td>
<td><a href="bidirectional_iterator.html" title="Bidirectional
Iterator">Bidirectional
Iterator</a></td>
<td>Constant</td>
</tr>
<tr>
<td><tt class="computeroutput"><a href="../functions/prior.html" title="prior"><tt class="computeroutput"><span class="identifier">prior</span></tt></a><span class="special">(</span><span class="identifier">i</span><span class="special">)</span></tt></td>
<td><a href="bidirectional_iterator.html" title="Bidirectional
Iterator">Bidirectional
Iterator</a></td>
<td>Constant</td>
</tr>
<tr>
<td><tt class="computeroutput"><a href="../functions/advance_c.html" title="advance_c"><tt class="computeroutput"><span class="identifier">advance_c</span></tt></a><span class="special">&lt;</span><span class="identifier">N</span><span class="special">&gt;(</span><span class="identifier">i</span><span class="special">)</span></tt></td>
<td><a href="bidirectional_iterator.html" title="Bidirectional
Iterator">Bidirectional
Iterator</a></td>
<td>Constant</td>
</tr>
<tr>
<td><tt class="computeroutput"><a href="../functions/advance.html" title="advance"><tt class="computeroutput"><span class="identifier">advance</span></tt></a><span class="special">&lt;</span><span class="identifier">M</span><span class="special">&gt;(</span><span class="identifier">i</span><span class="special">)</span></tt></td>
<td><a href="bidirectional_iterator.html" title="Bidirectional
Iterator">Bidirectional
Iterator</a></td>
<td>Constant</td>
</tr>
</tbody>
</table></div>
<a name="fusion.iterators.concepts.bidirectional_iterator.meta_expressions"></a><h5>
<a name="id459576"></a>
<a href="bidirectional_iterator.html#fusion.iterators.concepts.bidirectional_iterator.meta_expressions">Meta
Expressions</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>Expression</th>
<th>Compile Time Complexity</th>
</tr></thead>
<tbody><tr>
<td><tt class="computeroutput"><a href="../metafunctions/prior.html" title="prior"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">prior</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;::</span><span class="identifier">type</span></tt></td>
<td>Amortized constant
time</td>
</tr></tbody>
</table></div>
<a name="fusion.iterators.concepts.bidirectional_iterator.expression_semantics"></a><h5>
<a name="id459692"></a>
<a href="bidirectional_iterator.html#fusion.iterators.concepts.bidirectional_iterator.expression_semantics">Expression
Semantics</a>
</h5>
<p>
The semantics of an expression are defined only where they differ from,
or are not defined in <a href="forward_iterator.html" title="Forward
Iterator">Forward
Iterator</a>
</p>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>Expression</th>
<th>Semantics</th>
</tr></thead>
<tbody><tr>
<td><tt class="computeroutput"><a href="../functions/prior.html" title="prior"><tt class="computeroutput"><span class="identifier">prior</span></tt></a><span class="special">(</span><span class="identifier">i</span><span class="special">)</span></tt></td>
<td>An
iterator to the element preceding <tt class="computeroutput"><span class="identifier">i</span></tt>
</td>
</tr></tbody>
</table></div>
<a name="fusion.iterators.concepts.bidirectional_iterator.invariants"></a><h5>
<a name="id459814"></a>
<a href="bidirectional_iterator.html#fusion.iterators.concepts.bidirectional_iterator.invariants">Invariants</a>
</h5>
<p>
In addition to the invariants of <a href="forward_iterator.html" title="Forward
Iterator">Forward
Iterator</a>, the following invariants always hold:
</p>
<div class="itemizedlist"><ul type="disc">
<li><tt class="computeroutput"><a href="../functions/prior.html" title="prior"><tt class="computeroutput"><span class="identifier">prior</span></tt></a><span class="special">(</span><a href="../functions/next.html" title="next"><tt class="computeroutput"><span class="identifier">next</span></tt></a><span class="special">(</span><span class="identifier">i</span><span class="special">))</span><EFBFBD><span class="special">==</span><EFBFBD><span class="identifier">i</span><EFBFBD><span class="special">&amp;&amp;</span><EFBFBD><a href="../functions/prior.html" title="prior"><tt class="computeroutput"><span class="identifier">prior</span></tt></a><span class="special">(</span><a href="../functions/next.html" title="next"><tt class="computeroutput"><span class="identifier">next</span></tt></a><span class="special">(</span><span class="identifier">i</span><span class="special">))</span><EFBFBD><span class="special">==</span><EFBFBD><a href="../functions/next.html" title="next"><tt class="computeroutput"><span class="identifier">next</span></tt></a><span class="special">(</span><a href="../functions/prior.html" title="prior"><tt class="computeroutput"><span class="identifier">prior</span></tt></a><span class="special">(</span><span class="identifier">i</span><span class="special">))</span></tt></li>
<li><tt class="computeroutput"><a href="../functions/prior.html" title="prior"><tt class="computeroutput"><span class="identifier">prior</span></tt></a><span class="special">(</span><span class="identifier">i</span><span class="special">)</span><EFBFBD><span class="special">==</span><EFBFBD><a href="../functions/advance_c.html" title="advance_c"><tt class="computeroutput"><span class="identifier">advance_c</span></tt></a><span class="special">&lt;-</span><span class="number">1</span><span class="special">&gt;(</span><span class="identifier">i</span><span class="special">)</span></tt></li>
<li>
Using <tt class="computeroutput"><a href="../functions/prior.html" title="prior"><tt class="computeroutput"><span class="identifier">prior</span></tt></a></tt> to traverse a sequence
will never return a previously seen position
</li>
</ul></div>
<a name="fusion.iterators.concepts.bidirectional_iterator.models"></a><h5>
<a name="id460152"></a>
<a href="bidirectional_iterator.html#fusion.iterators.concepts.bidirectional_iterator.models">Models</a>
</h5>
<div class="itemizedlist"><ul type="disc">
<li>
<a href="../../sequences/adapted/std__pair.html" title="std::pair"><tt class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span></tt></a>
iterator
</li>
<li>
<a href="../../sequences/adapted/boost__array.html" title="boost::array"><tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">array</span></tt></a>
iterator
</li>
<li>
<a href="../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a>
iterator
</li>
<li>
<a href="../../sequences/views/iterator_range.html" title="iterator_range"><tt class="computeroutput"><span class="identifier">iterator_range</span></tt></a>
(where adapted sequence is a <a href="../../sequences/concepts/bidirectional_sequence.html" title="Bidirectional
Sequence">Bidirectional
Sequence</a>)
</li>
<li>
<a href="../../sequences/views/transform_view.html" title="transform_view"><tt class="computeroutput"><span class="identifier">transform_view</span></tt></a>
(where adapted sequence is a <a href="../../sequences/concepts/bidirectional_sequence.html" title="Bidirectional
Sequence">Bidirectional
Sequence</a>)
</li>
<li><a href="../../sequences/views/reverse_view.html" title="reverse_view"><tt class="computeroutput"><span class="identifier">reverse_view</span></tt></a></li>
</ul></div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
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<div class="section" lang="en">
<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.iterators.concepts.forward_iterator"></a><a href="forward_iterator.html" title="Forward
Iterator">Forward
Iterator</a></h4></div></div></div>
<a name="fusion.iterators.concepts.forward_iterator.description"></a><h5>
<a name="id456594"></a>
<a href="forward_iterator.html#fusion.iterators.concepts.forward_iterator.description">Description</a>
</h5>
<p>
A Forward Iterator traverses a <a href="../../sequences.html" title="Sequences">Sequence</a>
allowing movement in only one direction through it's elements, one element
at a time.
</p>
<div class="variablelist">
<p class="title"><b>Notation</b></p>
<dl>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">i</span></tt>,
<tt class="computeroutput"><span class="identifier">j</span></tt></span></dt>
<dd>
Forward Iterators
</dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">I</span></tt>,
<tt class="computeroutput"><span class="identifier">J</span></tt></span></dt>
<dd>
Forward Iterator types
</dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">M</span></tt></span></dt>
<dd>
An <a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a>
integral constant
</dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">N</span></tt></span></dt>
<dd>
An integral constant
</dd>
</dl>
</div>
<a name="fusion.iterators.concepts.forward_iterator.expression_requirements"></a><h5>
<a name="id456742"></a>
<a href="forward_iterator.html#fusion.iterators.concepts.forward_iterator.expression_requirements">Expression
requirements</a>
</h5>
<p>
A type models Forward Iterator if, in addition to being CopyConstructable,
the following expressions are valid:
</p>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Expression</th>
<th>Return type</th>
<th>Runtime
Complexity</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><a href="../functions/next.html" title="next"><tt class="computeroutput"><span class="identifier">next</span></tt></a><span class="special">(</span><span class="identifier">i</span><span class="special">)</span></tt></td>
<td><a href="forward_iterator.html" title="Forward
Iterator">Forward Iterator</a></td>
<td>Constant</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">i</span><EFBFBD><span class="special">==</span><EFBFBD><span class="identifier">j</span></tt></td>
<td>Convertible to
bool</td>
<td>Constant</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">i</span><EFBFBD><span class="special">!=</span><EFBFBD><span class="identifier">j</span></tt></td>
<td>Convertible to
bool</td>
<td>Constant</td>
</tr>
<tr>
<td><tt class="computeroutput"><a href="../functions/advance_c.html" title="advance_c"><tt class="computeroutput"><span class="identifier">advance_c</span></tt></a><span class="special">&lt;</span><span class="identifier">N</span><span class="special">&gt;(</span><span class="identifier">i</span><span class="special">)</span></tt></td>
<td><a href="forward_iterator.html" title="Forward
Iterator">Forward Iterator</a></td>
<td>Constant</td>
</tr>
<tr>
<td><tt class="computeroutput"><a href="../functions/advance.html" title="advance"><tt class="computeroutput"><span class="identifier">advance</span></tt></a><span class="special">&lt;</span><span class="identifier">M</span><span class="special">&gt;(</span><span class="identifier">i</span><span class="special">)</span></tt></td>
<td><a href="forward_iterator.html" title="Forward
Iterator">Forward Iterator</a></td>
<td>Constant</td>
</tr>
<tr>
<td><tt class="computeroutput"><a href="../functions/distance.html" title="distance"><tt class="computeroutput"><span class="identifier">distance</span></tt></a><span class="special">(</span><span class="identifier">i</span><span class="special">,</span><EFBFBD><span class="identifier">j</span><span class="special">)</span></tt></td>
<td><tt class="computeroutput"><a href="../metafunctions/distance.html" title="distance"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">distance</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span><EFBFBD><span class="identifier">J</span><span class="special">&gt;::</span><span class="identifier">type</span></tt></td>
<td>Constant</td>
</tr>
<tr>
<td><tt class="computeroutput"><a href="../functions/deref.html" title="deref"><tt class="computeroutput"><span class="identifier">deref</span></tt></a><span class="special">(</span><span class="identifier">i</span><span class="special">)</span></tt></td>
<td><tt class="computeroutput"><a href="../metafunctions/deref.html" title="deref"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">deref</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;::</span><span class="identifier">type</span></tt></td>
<td>Constant</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="special">*</span><span class="identifier">i</span></tt></td>
<td><tt class="computeroutput"><a href="../metafunctions/deref.html" title="deref"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">deref</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;::</span><span class="identifier">type</span></tt></td>
<td>Constant</td>
</tr>
</tbody>
</table></div>
<a name="fusion.iterators.concepts.forward_iterator.meta_expressions"></a><h5>
<a name="id457340"></a>
<a href="forward_iterator.html#fusion.iterators.concepts.forward_iterator.meta_expressions">Meta
Expressions</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>Expression</th>
<th>Compile Time Complexity</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><a href="../metafunctions/next.html" title="next"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">next</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;::</span><span class="identifier">type</span></tt></td>
<td>Amortized constant
time</td>
</tr>
<tr>
<td><tt class="computeroutput"><a href="../metafunctions/equal_to.html" title="equal_to"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">equal_to</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span><EFBFBD><span class="identifier">J</span><span class="special">&gt;::</span><span class="identifier">type</span></tt></td>
<td>Amortized constant
time</td>
</tr>
<tr>
<td><tt class="computeroutput"><a href="../metafunctions/advance_c.html" title="advance_c"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">advance_c</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span><EFBFBD><span class="identifier">N</span><span class="special">&gt;::</span><span class="identifier">type</span></tt></td>
<td>Linear</td>
</tr>
<tr>
<td><tt class="computeroutput"><a href="../metafunctions/advance.html" title="advance"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">advance</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><EFBFBD><span class="special">,</span><span class="identifier">M</span><span class="special">&gt;::</span><span class="identifier">type</span></tt></td>
<td>Linear</td>
</tr>
<tr>
<td><tt class="computeroutput"><a href="../metafunctions/distance.html" title="distance"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">distance</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><EFBFBD><span class="special">,</span><span class="identifier">J</span><span class="special">&gt;::</span><span class="identifier">type</span></tt></td>
<td>Linear</td>
</tr>
<tr>
<td><tt class="computeroutput"><a href="../metafunctions/deref.html" title="deref"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">deref</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;::</span><span class="identifier">type</span></tt></td>
<td>Amortized constant
time</td>
</tr>
<tr>
<td><tt class="computeroutput"><a href="../metafunctions/value_of.html" title="value_of"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">value_of</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;::</span><span class="identifier">type</span></tt></td>
<td>Amortized constant
time</td>
</tr>
</tbody>
</table></div>
<a name="fusion.iterators.concepts.forward_iterator.expression_semantics"></a><h5>
<a name="id457852"></a>
<a href="forward_iterator.html#fusion.iterators.concepts.forward_iterator.expression_semantics">Expression
Semantics</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>Expression</th>
<th>Semantics</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><a href="../functions/next.html" title="next"><tt class="computeroutput"><span class="identifier">next</span></tt></a><span class="special">(</span><span class="identifier">i</span><span class="special">)</span></tt></td>
<td>An
iterator to the element following <tt class="computeroutput"><span class="identifier">i</span></tt>
</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">i</span><EFBFBD><span class="special">==</span><EFBFBD><span class="identifier">j</span></tt></td>
<td>Iterator equality
comparison</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">i</span><EFBFBD><span class="special">!=</span><EFBFBD><span class="identifier">j</span></tt></td>
<td>Iterator inequality
comparison</td>
</tr>
<tr>
<td><tt class="computeroutput"><a href="../functions/advance_c.html" title="advance_c"><tt class="computeroutput"><span class="identifier">advance_c</span></tt></a><span class="special">&lt;</span><span class="identifier">N</span><span class="special">&gt;(</span><span class="identifier">i</span><span class="special">)</span></tt></td>
<td>An
iterator n elements after <tt class="computeroutput"><span class="identifier">i</span></tt>
in the sequence</td>
</tr>
<tr>
<td><tt class="computeroutput"><a href="../functions/advance.html" title="advance"><tt class="computeroutput"><span class="identifier">advance</span></tt></a><span class="special">&lt;</span><span class="identifier">M</span><span class="special">&gt;(</span><span class="identifier">i</span><span class="special">)</span></tt></td>
<td>Equivalent
to <tt class="computeroutput"><span class="identifier">advance_c</span><span class="special">&lt;</span><span class="identifier">M</span><span class="special">::</span><span class="identifier">value</span><span class="special">&gt;(</span><span class="identifier">i</span><span class="special">)</span></tt>
</td>
</tr>
<tr>
<td><tt class="computeroutput"><a href="../functions/distance.html" title="distance"><tt class="computeroutput"><span class="identifier">distance</span></tt></a><span class="special">(</span><span class="identifier">i</span><span class="special">,</span><EFBFBD><span class="identifier">j</span><span class="special">)</span></tt></td>
<td>The
number of elements between <tt class="computeroutput"><span class="identifier">i</span></tt>
and <tt class="computeroutput"><span class="identifier">j</span></tt>
</td>
</tr>
<tr>
<td><tt class="computeroutput"><a href="../functions/deref.html" title="deref"><tt class="computeroutput"><span class="identifier">deref</span></tt></a><span class="special">(</span><span class="identifier">i</span><span class="special">)</span></tt></td>
<td>The
element at position<tt class="computeroutput"><span class="identifier">i</span></tt>
</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="special">*</span><span class="identifier">i</span></tt></td>
<td>Equivalent
to <tt class="computeroutput"><span class="identifier">deref</span><span class="special">(</span><span class="identifier">i</span><span class="special">)</span></tt>
</td>
</tr>
</tbody>
</table></div>
<a name="fusion.iterators.concepts.forward_iterator.invariants"></a><h5>
<a name="id458347"></a>
<a href="forward_iterator.html#fusion.iterators.concepts.forward_iterator.invariants">Invariants</a>
</h5>
<p>
The following invariants always hold:
</p>
<div class="itemizedlist"><ul type="disc">
<li><tt class="computeroutput"><span class="special">!(</span><span class="identifier">i</span><EFBFBD><span class="special">==</span><EFBFBD><span class="identifier">j</span><span class="special">)</span><EFBFBD><span class="special">==</span><EFBFBD><span class="special">(</span><span class="identifier">i</span><EFBFBD><span class="special">!=</span><EFBFBD><span class="identifier">j</span><span class="special">)</span></tt></li>
<li><tt class="computeroutput"><a href="../functions/next.html" title="next"><tt class="computeroutput"><span class="identifier">next</span></tt></a><span class="special">(</span><span class="identifier">i</span><span class="special">)</span><EFBFBD><span class="special">==</span><EFBFBD><a href="../functions/advance_c.html" title="advance_c"><tt class="computeroutput"><span class="identifier">advance_c</span></tt></a><span class="special">&lt;</span><span class="number">1</span><span class="special">&gt;(</span><span class="identifier">i</span><span class="special">)</span></tt></li>
<li><tt class="computeroutput"><a href="../functions/distance.html" title="distance"><tt class="computeroutput"><span class="identifier">distance</span></tt></a><span class="special">(</span><span class="identifier">i</span><span class="special">,</span><EFBFBD><a href="../functions/advance_c.html" title="advance_c"><tt class="computeroutput"><span class="identifier">advance_c</span></tt></a><span class="special">&lt;</span><span class="identifier">N</span><span class="special">&gt;(</span><span class="identifier">i</span><span class="special">))</span><EFBFBD><span class="special">==</span><EFBFBD><span class="identifier">N</span></tt></li>
<li>
Using <tt class="computeroutput"><a href="../functions/next.html" title="next"><tt class="computeroutput"><span class="identifier">next</span></tt></a></tt> to traverse the
sequence will never return to a previously seen position
</li>
<li>
<tt class="computeroutput"><a href="../functions/deref.html" title="deref"><tt class="computeroutput"><span class="identifier">deref</span></tt></a><span class="special">(</span><span class="identifier">i</span><span class="special">)</span></tt>
is equivalent to <tt class="computeroutput"><span class="special">*</span><span class="identifier">i</span></tt>
</li>
<li>
If <tt class="computeroutput"><span class="identifier">i</span><EFBFBD><span class="special">==</span><EFBFBD><span class="identifier">j</span></tt> then <tt class="computeroutput"><span class="special">*</span><span class="identifier">i</span></tt> is equivalent to <tt class="computeroutput"><span class="special">*</span><span class="identifier">j</span></tt>
</li>
</ul></div>
<a name="fusion.iterators.concepts.forward_iterator.models"></a><h5>
<a name="id458763"></a>
<a href="forward_iterator.html#fusion.iterators.concepts.forward_iterator.models">Models</a>
</h5>
<div class="itemizedlist"><ul type="disc">
<li>
<a href="../../sequences/adapted/std__pair.html" title="std::pair"><tt class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span></tt></a>
iterator
</li>
<li>
<a href="../../sequences/adapted/boost__array.html" title="boost::array"><tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">array</span></tt></a>
iterator
</li>
<li>
<a href="../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a>
iterator
</li>
<li>
<a href="../../sequences/containers/cons.html" title="cons"><tt class="computeroutput"><span class="identifier">cons</span></tt></a>
iterator
</li>
<li>
<a href="../../sequences/containers/list.html" title="list"><tt class="computeroutput"><span class="identifier">list</span></tt></a>
iterator
</li>
<li>
<a href="../../sequences/containers/set.html" title="set"><tt class="computeroutput"><span class="identifier">set</span></tt></a>
iterator
</li>
<li>
<a href="../../sequences/containers/map.html" title="map"><tt class="computeroutput"><span class="identifier">map</span></tt></a>
iterator
</li>
<li>
<a href="../../sequences/views/single_view.html" title="single_view"><tt class="computeroutput"><span class="identifier">single_view</span></tt></a>
iterator
</li>
<li>
<a href="../../sequences/views/filter_view.html" title="filter_view"><tt class="computeroutput"><span class="identifier">filter_view</span></tt></a>
iterator
</li>
<li>
<a href="../../sequences/views/iterator_range.html" title="iterator_range"><tt class="computeroutput"><span class="identifier">iterator_range</span></tt></a>
iterator
</li>
<li>
<a href="../../sequences/views/joint_view.html" title="joint_view"><tt class="computeroutput"><span class="identifier">joint_view</span></tt></a>
iterator
</li>
<li>
<a href="../../sequences/views/transform_view.html" title="transform_view"><tt class="computeroutput"><span class="identifier">transform_view</span></tt></a>
iterator
</li>
<li>
<a href="../../sequences/views/reverse_view.html" title="reverse_view"><tt class="computeroutput"><span class="identifier">reverse_view</span></tt></a>
iterator
</li>
</ul></div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
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<title>Random
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<div class="section" lang="en">
<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.iterators.concepts.random_access_iterator"></a><a href="random_access_iterator.html" title="Random
Access Iterator">Random
Access Iterator</a></h4></div></div></div>
<a name="fusion.iterators.concepts.random_access_iterator.description"></a><h5>
<a name="id460364"></a>
<a href="random_access_iterator.html#fusion.iterators.concepts.random_access_iterator.description">Description</a>
</h5>
<p>
A Random Access Iterator traverses a <a href="../../sequences.html" title="Sequences">Sequence</a>
moving in either direction, permitting efficient arbitrary distance movements
back and forward through the sequence.
</p>
<div class="variablelist">
<p class="title"><b>Notation</b></p>
<dl>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">i</span></tt>,
<tt class="computeroutput"><span class="identifier">j</span></tt></span></dt>
<dd>
Random Access Iterators
</dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">I</span></tt>,
<tt class="computeroutput"><span class="identifier">J</span></tt></span></dt>
<dd>
Random Access Iterator types
</dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">M</span></tt></span></dt>
<dd>
An <a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a>
integral constant
</dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">N</span></tt></span></dt>
<dd>
An integral constant
</dd>
</dl>
</div>
<a name="fusion.iterators.concepts.random_access_iterator.refinement_of"></a><h5>
<a name="id460512"></a>
<a href="random_access_iterator.html#fusion.iterators.concepts.random_access_iterator.refinement_of">Refinement
of</a>
</h5>
<p>
<a href="bidirectional_iterator.html" title="Bidirectional
Iterator">Bidirectional
Iterator</a>
</p>
<a name="fusion.iterators.concepts.random_access_iterator.expression_requirements"></a><h5>
<a name="id460553"></a>
<a href="random_access_iterator.html#fusion.iterators.concepts.random_access_iterator.expression_requirements">Expression
requirements</a>
</h5>
<p>
In addition to the requirements defined in <a href="bidirectional_iterator.html" title="Bidirectional
Iterator">Bidirectional
Iterator</a>, the following expressions must be valid:
</p>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Expression</th>
<th>Return type</th>
<th>Runtime
Complexity</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><a href="../functions/next.html" title="next"><tt class="computeroutput"><span class="identifier">next</span></tt></a><span class="special">(</span><span class="identifier">i</span><span class="special">)</span></tt></td>
<td><a href="random_access_iterator.html" title="Random
Access Iterator">Random
Access Iterator</a></td>
<td>Constant</td>
</tr>
<tr>
<td><tt class="computeroutput"><a href="../functions/prior.html" title="prior"><tt class="computeroutput"><span class="identifier">prior</span></tt></a><span class="special">(</span><span class="identifier">i</span><span class="special">)</span></tt></td>
<td><a href="random_access_iterator.html" title="Random
Access Iterator">Random
Access Iterator</a></td>
<td>Constant</td>
</tr>
<tr>
<td><tt class="computeroutput"><a href="../functions/advance_c.html" title="advance_c"><tt class="computeroutput"><span class="identifier">advance_c</span></tt></a><span class="special">&lt;</span><span class="identifier">N</span><span class="special">&gt;(</span><span class="identifier">i</span><span class="special">)</span></tt></td>
<td><a href="random_access_iterator.html" title="Random
Access Iterator">Random
Access Iterator</a></td>
<td>Constant</td>
</tr>
<tr>
<td><tt class="computeroutput"><a href="../functions/advance.html" title="advance"><tt class="computeroutput"><span class="identifier">advance</span></tt></a><span class="special">&lt;</span><span class="identifier">M</span><span class="special">&gt;(</span><span class="identifier">i</span><span class="special">)</span></tt></td>
<td><a href="random_access_iterator.html" title="Random
Access Iterator">Random
Access Iterator</a></td>
<td>Constant</td>
</tr>
</tbody>
</table></div>
<a name="fusion.iterators.concepts.random_access_iterator.meta_expressions"></a><h5>
<a name="id460854"></a>
<a href="random_access_iterator.html#fusion.iterators.concepts.random_access_iterator.meta_expressions">Meta
Expressions</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>Expression</th>
<th>Compile Time Complexity</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><a href="../metafunctions/advance_c.html" title="advance_c"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">advance_c</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span><EFBFBD><span class="identifier">N</span><span class="special">&gt;::</span><span class="identifier">type</span></tt></td>
<td>Amortized constant
time</td>
</tr>
<tr>
<td><tt class="computeroutput"><a href="../metafunctions/advance.html" title="advance"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">advance</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span><EFBFBD><span class="identifier">M</span><span class="special">&gt;::</span><span class="identifier">type</span></tt></td>
<td>Amortized constant
time</td>
</tr>
<tr>
<td><tt class="computeroutput"><a href="../metafunctions/distance.html" title="distance"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">distance</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><EFBFBD><span class="special">,</span><span class="identifier">J</span><span class="special">&gt;::</span><span class="identifier">type</span></tt></td>
<td>Amortized constant
time</td>
</tr>
</tbody>
</table></div>
<a name="fusion.iterators.concepts.random_access_iterator.models"></a><h5>
<a name="id461116"></a>
<a href="random_access_iterator.html#fusion.iterators.concepts.random_access_iterator.models">Models</a>
</h5>
<div class="itemizedlist"><ul type="disc">
<li>
<a href="../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a>
iterator
</li>
<li>
<a href="../../sequences/adapted/std__pair.html" title="std::pair"><tt class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span></tt></a>
iterator
</li>
<li>
<a href="../../sequences/adapted/boost__array.html" title="boost::array"><tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">array</span></tt></a>
iterator
</li>
<li>
<a href="../../sequences/views/iterator_range.html" title="iterator_range"><tt class="computeroutput"><span class="identifier">iterator_range</span></tt></a>
iterator (where adapted sequence is a <a href="../../sequences/concepts/random_access_sequence.html" title="Random
Access Sequence">Random
Access Sequence</a>)
</li>
<li>
<a href="../../sequences/views/transform_view.html" title="transform_view"><tt class="computeroutput"><span class="identifier">transform_view</span></tt></a>
iterator (where adapted sequence is a <a href="../../sequences/concepts/random_access_sequence.html" title="Random
Access Sequence">Random
Access Sequence</a>)
</li>
<li>
<a href="../../sequences/views/reverse_view.html" title="reverse_view"><tt class="computeroutput"><span class="identifier">reverse_view</span></tt></a>
iterator (where adapted sequence is a <a href="../../sequences/concepts/random_access_sequence.html" title="Random
Access Sequence">Random
Access Sequence</a>)
</li>
</ul></div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
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<div class="section" lang="en">
<div class="titlepage"><div><div><h3 class="title">
<a name="fusion.iterators.functions"></a><a href="functions.html" title="Functions">Functions</a></h3></div></div></div>
<div class="toc"><dl>
<dt><span class="section"><a href="functions/deref.html">deref</a></span></dt>
<dt><span class="section"><a href="functions/next.html">next</a></span></dt>
<dt><span class="section"><a href="functions/prior.html">prior</a></span></dt>
<dt><span class="section"><a href="functions/distance.html">distance</a></span></dt>
<dt><span class="section"><a href="functions/advance.html">advance</a></span></dt>
<dt><span class="section"><a href="functions/advance_c.html">advance_c</a></span></dt>
</dl></div>
<p>
Fusion provides functions for manipulating iterators, analogous to the similar
functions from the <a href="http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a>
library.
</p>
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.iterators.functions.advance"></a><a href="advance.html" title="advance">advance</a></h4></div></div></div>
<a name="fusion.iterators.functions.advance.description"></a><h5>
<a name="id464834"></a>
<a href="advance.html#fusion.iterators.functions.advance.description">Description</a>
</h5>
<p>
Moves an iterator by a specified distance.
</p>
<a name="fusion.iterators.functions.advance.synopsis"></a><h5>
<a name="id464863"></a>
<a href="advance.html#fusion.iterators.functions.advance.synopsis">Synopsis</a>
</h5>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">I</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">M</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/advance.html" title="advance"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">advance</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">M</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">advance</span><span class="special">(</span><span class="identifier">I</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">i</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id465035"></a><p class="title"><b>Table<EFBFBD>1.6.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">i</span></tt></td>
<td>Model
of <a href="../concepts/forward_iterator.html" title="Forward
Iterator">Forward
Iterator</a>
</td>
<td>Iterator to move relative to</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">N</span></tt></td>
<td>An
MPL Integral Constant</td>
<td>Number of positions to move</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.iterators.functions.advance.expression_semantics"></a><h5>
<a name="id465128"></a>
<a href="advance.html#fusion.iterators.functions.advance.expression_semantics">Expression
Semantics</a>
</h5>
<pre class="programlisting">
<a href="advance.html" title="advance"><tt class="computeroutput"><span class="identifier">advance</span></tt></a><span class="special">&lt;</span><span class="identifier">M</span><span class="special">&gt;(</span><span class="identifier">i</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of the same iterator
concept as <tt class="computeroutput"><span class="identifier">i</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns an iterator to the
element <tt class="computeroutput"><span class="identifier">M</span></tt> positions from
<tt class="computeroutput"><span class="identifier">i</span></tt>. If <tt class="computeroutput"><span class="identifier">i</span></tt>
is a <a href="../concepts/bidirectional_iterator.html" title="Bidirectional
Iterator">Bidirectional
Iterator</a> then <tt class="computeroutput"><span class="identifier">M</span></tt>
may be negative.
</p>
<a name="fusion.iterators.functions.advance.header"></a><h5>
<a name="id465284"></a>
<a href="advance.html#fusion.iterators.functions.advance.header">Header</a>
</h5>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">iterator</span><span class="special">/</span><span class="identifier">advance</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.iterators.functions.advance.example"></a><h5>
<a name="id465379"></a>
<a href="advance.html#fusion.iterators.functions.advance.example">Example</a>
</h5>
<pre class="programlisting">
<span class="keyword">typedef</span> <a href="../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">&gt;</span> <span class="identifier">vec</span><span class="special">;</span>
<span class="identifier">vec</span> <span class="identifier">v</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">,</span><span class="number">3</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="deref.html" title="deref"><tt class="computeroutput"><span class="identifier">deref</span></tt></a><span class="special">(</span><a href="advance.html" title="advance"><tt class="computeroutput"><span class="identifier">advance</span></tt></a><span class="special">&lt;</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">int_</span><span class="special">&lt;</span><span class="number">2</span><span class="special">&gt;</span> <span class="special">&gt;(</span><a href="../../sequences/intrinsics/functions/begin.html" title="begin"><tt class="computeroutput"><span class="identifier">begin</span></tt></a><span class="special">(</span><span class="identifier">v</span><span class="special">)))</span> <span class="special">==</span> <span class="number">3</span><span class="special">);</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.iterators.functions.advance_c"></a><a href="advance_c.html" title="advance_c">advance_c</a></h4></div></div></div>
<a name="fusion.iterators.functions.advance_c.description"></a><h5>
<a name="id465675"></a>
<a href="advance_c.html#fusion.iterators.functions.advance_c.description">Description</a>
</h5>
<p>
Moves an iterator by a specified distance.
</p>
<a name="fusion.iterators.functions.advance_c.synopsis"></a><h5>
<a name="id465707"></a>
<a href="advance_c.html#fusion.iterators.functions.advance_c.synopsis">Synopsis</a>
</h5>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">I</span><span class="special">,</span>
<span class="keyword">int</span> <span class="identifier">N</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/advance_c.html" title="advance_c"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">advance_c</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">N</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">advance_c</span><span class="special">(</span><span class="identifier">I</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">i</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id465879"></a><p class="title"><b>Table<EFBFBD>1.7.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">i</span></tt></td>
<td>Model
of <a href="../concepts/forward_iterator.html" title="Forward
Iterator">Forward
Iterator</a>
</td>
<td>Iterator to move relative to</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">N</span></tt></td>
<td>Integer
constant</td>
<td>Number of positions to move</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.iterators.functions.advance_c.expression_semantics"></a><h5>
<a name="id465973"></a>
<a href="advance_c.html#fusion.iterators.functions.advance_c.expression_semantics">Expression
Semantics</a>
</h5>
<pre class="programlisting">
<a href="advance_c.html" title="advance_c"><tt class="computeroutput"><span class="identifier">advance_c</span></tt></a><span class="special">&lt;</span><span class="identifier">N</span><span class="special">&gt;(</span><span class="identifier">i</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of the same iterator
concept as <tt class="computeroutput"><span class="identifier">i</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns an iterator to the
element <tt class="computeroutput"><span class="identifier">N</span></tt> positions from
<tt class="computeroutput"><span class="identifier">i</span></tt>. If <tt class="computeroutput"><span class="identifier">i</span></tt>
is a <a href="../concepts/bidirectional_iterator.html" title="Bidirectional
Iterator">Bidirectional
Iterator</a> then <tt class="computeroutput"><span class="identifier">N</span></tt>
may be negative.
</p>
<a name="fusion.iterators.functions.advance_c.header"></a><h5>
<a name="id466130"></a>
<a href="advance_c.html#fusion.iterators.functions.advance_c.header">Header</a>
</h5>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">iterator</span><span class="special">/</span><span class="identifier">advance</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.iterators.functions.advance_c.example"></a><h5>
<a name="id466224"></a>
<a href="advance_c.html#fusion.iterators.functions.advance_c.example">Example</a>
</h5>
<pre class="programlisting">
<span class="keyword">typedef</span> <a href="../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">&gt;</span> <span class="identifier">vec</span><span class="special">;</span>
<span class="identifier">vec</span> <span class="identifier">v</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">,</span><span class="number">3</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="deref.html" title="deref"><tt class="computeroutput"><span class="identifier">deref</span></tt></a><span class="special">(</span><a href="advance_c.html" title="advance_c"><tt class="computeroutput"><span class="identifier">advance_c</span></tt></a><span class="special">&lt;</span><span class="number">2</span><span class="special">&gt;(</span><a href="../../sequences/intrinsics/functions/begin.html" title="begin"><tt class="computeroutput"><span class="identifier">begin</span></tt></a><span class="special">(</span><span class="identifier">v</span><span class="special">)))</span> <span class="special">==</span> <span class="number">3</span><span class="special">);</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="advance.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../operators.html"><img src="../../../images/next.png" alt="Next"></a>
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<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>deref</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.iterators.functions.deref"></a><a href="deref.html" title="deref">deref</a></h4></div></div></div>
<a name="fusion.iterators.functions.deref.description"></a><h5>
<a name="id461373"></a>
<a href="deref.html#fusion.iterators.functions.deref.description">Description</a>
</h5>
<p>
Deferences an iterator.
</p>
<a name="fusion.iterators.functions.deref.synopsis"></a><h5>
<a name="id461402"></a>
<a href="deref.html#fusion.iterators.functions.deref.synopsis">Synopsis</a>
</h5>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">I</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/deref.html" title="deref"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">deref</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">deref</span><span class="special">(</span><span class="identifier">I</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">i</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id461546"></a><p class="title"><b>Table<EFBFBD>1.2.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody><tr>
<td><tt class="computeroutput"><span class="identifier">i</span></tt></td>
<td>Model
of <a href="../concepts/forward_iterator.html" title="Forward
Iterator">Forward
Iterator</a>
</td>
<td>Operation's argument</td>
</tr></tbody>
</table>
</div>
<a name="fusion.iterators.functions.deref.expression_semantics"></a><h5>
<a name="id461619"></a>
<a href="deref.html#fusion.iterators.functions.deref.expression_semantics">Expression
Semantics</a>
</h5>
<pre class="programlisting">
<a href="deref.html" title="deref"><tt class="computeroutput"><span class="identifier">deref</span></tt></a><span class="special">(</span><span class="identifier">i</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: <tt class="computeroutput"><a href="../metafunctions/deref.html" title="deref"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">deref</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;::</span><span class="identifier">type</span></tt>
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Dereferences the iterator
<tt class="computeroutput"><span class="identifier">i</span></tt>.
</p>
<a name="fusion.iterators.functions.deref.header"></a><h5>
<a name="id461762"></a>
<a href="deref.html#fusion.iterators.functions.deref.header">Header</a>
</h5>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">iterator</span><span class="special">/</span><span class="identifier">deref</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.iterators.functions.deref.example"></a><h5>
<a name="id461856"></a>
<a href="deref.html#fusion.iterators.functions.deref.example">Example</a>
</h5>
<pre class="programlisting">
<span class="keyword">typedef</span> <a href="../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">&amp;&gt;</span> <span class="identifier">vec</span><span class="special">;</span>
<span class="keyword">int</span> <span class="identifier">i</span><span class="special">(</span><span class="number">0</span><span class="special">);</span>
<span class="identifier">vec</span> <span class="identifier">v</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="identifier">i</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="deref.html" title="deref"><tt class="computeroutput"><span class="identifier">deref</span></tt></a><span class="special">(</span><a href="../../sequences/intrinsics/functions/begin.html" title="begin"><tt class="computeroutput"><span class="identifier">begin</span></tt></a><span class="special">(</span><span class="identifier">v</span><span class="special">))</span> <span class="special">==</span> <span class="number">1</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="deref.html" title="deref"><tt class="computeroutput"><span class="identifier">deref</span></tt></a><span class="special">(</span><a href="next.html" title="next"><tt class="computeroutput"><span class="identifier">next</span></tt></a><span class="special">(</span><a href="../../sequences/intrinsics/functions/begin.html" title="begin"><tt class="computeroutput"><span class="identifier">begin</span></tt></a><span class="special">(</span><span class="identifier">v</span><span class="special">)))</span> <span class="special">==</span> <span class="number">0</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(&amp;(</span><a href="deref.html" title="deref"><tt class="computeroutput"><span class="identifier">deref</span></tt></a><span class="special">(</span><a href="next.html" title="next"><tt class="computeroutput"><span class="identifier">next</span></tt></a><span class="special">(</span><a href="../../sequences/intrinsics/functions/begin.html" title="begin"><tt class="computeroutput"><span class="identifier">begin</span></tt></a><span class="special">(</span><span class="identifier">v</span><span class="special">))))</span> <span class="special">==</span> <span class="special">&amp;</span><span class="identifier">i</span><span class="special">);</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
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<a accesskey="p" href="../functions.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="next.html"><img src="../../../images/next.png" alt="Next"></a>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>distance</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.iterators.functions.distance"></a><a href="distance.html" title="distance">distance</a></h4></div></div></div>
<a name="fusion.iterators.functions.distance.description"></a><h5>
<a name="id463992"></a>
<a href="distance.html#fusion.iterators.functions.distance.description">Description</a>
</h5>
<p>
Returns the distance between 2 iterators.
</p>
<a name="fusion.iterators.functions.distance.synopsis"></a><h5>
<a name="id464021"></a>
<a href="distance.html#fusion.iterators.functions.distance.synopsis">Synopsis</a>
</h5>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">I</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">J</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/distance.html" title="distance"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">distance</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">J</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">distance</span><span class="special">(</span><span class="identifier">I</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">i</span><span class="special">,</span> <span class="identifier">J</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">j</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id464221"></a><p class="title"><b>Table<EFBFBD>1.5.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody><tr>
<td>
<tt class="computeroutput"><span class="identifier">i</span></tt>, <tt class="computeroutput"><span class="identifier">j</span></tt>
</td>
<td>Models of <a href="../concepts/forward_iterator.html" title="Forward
Iterator">Forward
Iterator</a> into the same sequence</td>
<td>The start and
end points of the distance to be measured</td>
</tr></tbody>
</table>
</div>
<a name="fusion.iterators.functions.distance.expression_semantics"></a><h5>
<a name="id464305"></a>
<a href="distance.html#fusion.iterators.functions.distance.expression_semantics">Expression
Semantics</a>
</h5>
<pre class="programlisting">
<a href="distance.html" title="distance"><tt class="computeroutput"><span class="identifier">distance</span></tt></a><span class="special">(</span><span class="identifier">i</span><span class="special">,</span><span class="identifier">j</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: <tt class="computeroutput"><span class="keyword">int</span></tt>
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns the distance between
iterators <tt class="computeroutput"><span class="identifier">i</span></tt> and <tt class="computeroutput"><span class="identifier">j</span></tt>.
</p>
<a name="fusion.iterators.functions.distance.header"></a><h5>
<a name="id464429"></a>
<a href="distance.html#fusion.iterators.functions.distance.header">Header</a>
</h5>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">iterator</span><span class="special">/</span><span class="identifier">distance</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.iterators.functions.distance.example"></a><h5>
<a name="id464524"></a>
<a href="distance.html#fusion.iterators.functions.distance.example">Example</a>
</h5>
<pre class="programlisting">
<span class="keyword">typedef</span> <a href="../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">&gt;</span> <span class="identifier">vec</span><span class="special">;</span>
<span class="identifier">vec</span> <span class="identifier">v</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">,</span><span class="number">3</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="distance.html" title="distance"><tt class="computeroutput"><span class="identifier">distance</span></tt></a><span class="special">(</span><a href="../../sequences/intrinsics/functions/begin.html" title="begin"><tt class="computeroutput"><span class="identifier">begin</span></tt></a><span class="special">(</span><span class="identifier">v</span><span class="special">),</span> <a href="next.html" title="next"><tt class="computeroutput"><span class="identifier">next</span></tt></a><span class="special">(</span><a href="next.html" title="next"><tt class="computeroutput"><span class="identifier">next</span></tt></a><span class="special">(</span><a href="../../sequences/intrinsics/functions/begin.html" title="begin"><tt class="computeroutput"><span class="identifier">begin</span></tt></a><span class="special">(</span><span class="identifier">v</span><span class="special">))))</span> <span class="special">==</span> <span class="number">2</span><span class="special">);</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
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<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.iterators.functions.next"></a><a href="next.html" title="next">next</a></h4></div></div></div>
<a name="fusion.iterators.functions.next.description"></a><h5>
<a name="id462303"></a>
<a href="next.html#fusion.iterators.functions.next.description">Description</a>
</h5>
<p>
Moves an iterator 1 position forwards.
</p>
<a name="fusion.iterators.functions.next.synopsis"></a><h5>
<a name="id462333"></a>
<a href="next.html#fusion.iterators.functions.next.synopsis">Synopsis</a>
</h5>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">I</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/next.html" title="next"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">next</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">next</span><span class="special">(</span><span class="identifier">I</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">i</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id462477"></a><p class="title"><b>Table<EFBFBD>1.3.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody><tr>
<td><tt class="computeroutput"><span class="identifier">i</span></tt></td>
<td>Model
of <a href="../concepts/forward_iterator.html" title="Forward
Iterator">Forward
Iterator</a>
</td>
<td>Operation's argument</td>
</tr></tbody>
</table>
</div>
<a name="fusion.iterators.functions.next.expression_semantics"></a><h5>
<a name="id462549"></a>
<a href="next.html#fusion.iterators.functions.next.expression_semantics">Expression
Semantics</a>
</h5>
<pre class="programlisting">
<span class="identifier">next</span><span class="special">(</span><span class="identifier">i</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of the same iterator
concept as <tt class="computeroutput"><span class="identifier">i</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns an iterator to the
next element after <tt class="computeroutput"><span class="identifier">i</span></tt>.
</p>
<a name="fusion.iterators.functions.next.header"></a><h5>
<a name="id462642"></a>
<a href="next.html#fusion.iterators.functions.next.header">Header</a>
</h5>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">iterator</span><span class="special">/</span><span class="identifier">next</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.iterators.functions.next.example"></a><h5>
<a name="id462736"></a>
<a href="next.html#fusion.iterators.functions.next.example">Example</a>
</h5>
<pre class="programlisting">
<span class="keyword">typedef</span> <a href="../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">&gt;</span> <span class="identifier">vec</span><span class="special">;</span>
<span class="identifier">vec</span> <span class="identifier">v</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">,</span><span class="number">3</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="deref.html" title="deref"><tt class="computeroutput"><span class="identifier">deref</span></tt></a><span class="special">(</span><a href="../../sequences/intrinsics/functions/begin.html" title="begin"><tt class="computeroutput"><span class="identifier">begin</span></tt></a><span class="special">(</span><span class="identifier">v</span><span class="special">))</span> <span class="special">==</span> <span class="number">1</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="deref.html" title="deref"><tt class="computeroutput"><span class="identifier">deref</span></tt></a><span class="special">(</span><a href="next.html" title="next"><tt class="computeroutput"><span class="identifier">next</span></tt></a><span class="special">(</span><a href="../../sequences/intrinsics/functions/begin.html" title="begin"><tt class="computeroutput"><span class="identifier">begin</span></tt></a><span class="special">(</span><span class="identifier">v</span><span class="special">)))</span> <span class="special">==</span> <span class="number">2</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="deref.html" title="deref"><tt class="computeroutput"><span class="identifier">deref</span></tt></a><span class="special">(</span><a href="next.html" title="next"><tt class="computeroutput"><span class="identifier">next</span></tt></a><span class="special">(</span><a href="next.html" title="next"><tt class="computeroutput"><span class="identifier">next</span></tt></a><span class="special">(</span><a href="../../sequences/intrinsics/functions/begin.html" title="begin"><tt class="computeroutput"><span class="identifier">begin</span></tt></a><span class="special">(</span><span class="identifier">v</span><span class="special">))))</span> <span class="special">==</span> <span class="number">3</span><span class="special">);</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.iterators.functions.prior"></a><a href="prior.html" title="prior">prior</a></h4></div></div></div>
<a name="fusion.iterators.functions.prior.description"></a><h5>
<a name="id463190"></a>
<a href="prior.html#fusion.iterators.functions.prior.description">Description</a>
</h5>
<p>
Moves an iterator 1 position backwards.
</p>
<a name="fusion.iterators.functions.prior.synopsis"></a><h5>
<a name="id463220"></a>
<a href="prior.html#fusion.iterators.functions.prior.synopsis">Synopsis</a>
</h5>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">I</span>
<span class="special">&gt;</span>
<span class="keyword">typename</span> <a href="../metafunctions/prior.html" title="prior"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">prior</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">prior</span><span class="special">(</span><span class="identifier">I</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">i</span><span class="special">);</span>
</pre>
<div class="table">
<a name="id463363"></a><p class="title"><b>Table<EFBFBD>1.4.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody><tr>
<td><tt class="computeroutput"><span class="identifier">i</span></tt></td>
<td>Model
of <a href="../concepts/bidirectional_iterator.html" title="Bidirectional
Iterator">Bidirectional
Iterator</a>
</td>
<td>Operation's argument</td>
</tr></tbody>
</table>
</div>
<a name="fusion.iterators.functions.prior.expression_semantics"></a><h5>
<a name="id463437"></a>
<a href="prior.html#fusion.iterators.functions.prior.expression_semantics">Expression
Semantics</a>
</h5>
<pre class="programlisting">
<a href="prior.html" title="prior"><tt class="computeroutput"><span class="identifier">prior</span></tt></a><span class="special">(</span><span class="identifier">i</span><span class="special">);</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of the same iterator
concept as <tt class="computeroutput"><span class="identifier">i</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns an iterator to the
element prior to <tt class="computeroutput"><span class="identifier">i</span></tt>.
</p>
<a name="fusion.iterators.functions.prior.header"></a><h5>
<a name="id463541"></a>
<a href="prior.html#fusion.iterators.functions.prior.header">Header</a>
</h5>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">iterator</span><span class="special">/</span><span class="identifier">prior</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.iterators.functions.prior.example"></a><h5>
<a name="id463635"></a>
<a href="prior.html#fusion.iterators.functions.prior.example">Example</a>
</h5>
<pre class="programlisting">
<span class="keyword">typedef</span> <a href="../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">&gt;</span> <span class="identifier">vec</span><span class="special">;</span>
<span class="identifier">vec</span> <span class="identifier">v</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="deref.html" title="deref"><tt class="computeroutput"><span class="identifier">deref</span></tt></a><span class="special">(</span><a href="next.html" title="next"><tt class="computeroutput"><span class="identifier">next</span></tt></a><span class="special">(</span><a href="../../sequences/intrinsics/functions/begin.html" title="begin"><tt class="computeroutput"><span class="identifier">begin</span></tt></a><span class="special">(</span><span class="identifier">v</span><span class="special">)))</span> <span class="special">==</span> <span class="number">2</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><a href="deref.html" title="deref"><tt class="computeroutput"><span class="identifier">deref</span></tt></a><span class="special">(</span><a href="prior.html" title="prior"><tt class="computeroutput"><span class="identifier">prior</span></tt></a><span class="special">(</span><a href="next.html" title="next"><tt class="computeroutput"><span class="identifier">next</span></tt></a><span class="special">(</span><a href="../../sequences/intrinsics/functions/begin.html" title="begin"><tt class="computeroutput"><span class="identifier">begin</span></tt></a><span class="special">(</span><span class="identifier">v</span><span class="special">))))</span> <span class="special">==</span> <span class="number">1</span><span class="special">);</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
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<a name="fusion.iterators.metafunctions"></a><a href="metafunctions.html" title="Metafunctions">Metafunctions</a></h3></div></div></div>
<div class="toc"><dl>
<dt><span class="section"><a href="metafunctions/value_of.html">value_of</a></span></dt>
<dt><span class="section"><a href="metafunctions/deref.html">deref</a></span></dt>
<dt><span class="section"><a href="metafunctions/next.html">next</a></span></dt>
<dt><span class="section"><a href="metafunctions/prior.html">prior</a></span></dt>
<dt><span class="section"><a href="metafunctions/equal_to.html">equal_to</a></span></dt>
<dt><span class="section"><a href="metafunctions/distance.html">distance</a></span></dt>
<dt><span class="section"><a href="metafunctions/advance.html">advance</a></span></dt>
<dt><span class="section"><a href="metafunctions/advance_c.html">advance_c</a></span></dt>
</dl></div>
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<div class="section" lang="en">
<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.iterators.metafunctions.advance"></a><a href="advance.html" title="advance">advance</a></h4></div></div></div>
<a name="fusion.iterators.metafunctions.advance.description"></a><h5>
<a name="id473888"></a>
<a href="advance.html#fusion.iterators.metafunctions.advance.description">Description</a>
</h5>
<p>
Moves an iterator a specified distance.
</p>
<a name="fusion.iterators.metafunctions.advance.synopsis"></a><h5>
<a name="id473919"></a>
<a href="advance.html#fusion.iterators.metafunctions.advance.synopsis">Synopsis</a>
</h5>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">I</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">M</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">advance</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id474035"></a><p class="title"><b>Table<EFBFBD>1.17.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">I</span></tt></td>
<td>Model
of <a href="../concepts/forward_iterator.html" title="Forward
Iterator">Forward
Iterator</a>
</td>
<td>Iterator to move relative to</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">M</span></tt></td>
<td>Model
of MPL Integral Constant</td>
<td>Number of positions to move</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.iterators.metafunctions.advance.expression_semantics"></a><h5>
<a name="id474129"></a>
<a href="advance.html#fusion.iterators.metafunctions.advance.expression_semantics">Expression
Semantics</a>
</h5>
<pre class="programlisting">
<a href="advance.html" title="advance"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">advance</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span><span class="identifier">M</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of the same iterator
concept as <tt class="computeroutput"><span class="identifier">I</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns an iterator a distance
<tt class="computeroutput"><span class="identifier">M</span></tt> from <tt class="computeroutput"><span class="identifier">I</span></tt>.
If <tt class="computeroutput"><span class="identifier">I</span></tt> is a <a href="../concepts/bidirectional_iterator.html" title="Bidirectional
Iterator">Bidirectional
Iterator</a> then <tt class="computeroutput"><span class="identifier">M</span></tt>
may be negative.
</p>
<a name="fusion.iterators.metafunctions.advance.header"></a><h5>
<a name="id474299"></a>
<a href="advance.html#fusion.iterators.metafunctions.advance.header">Header</a>
</h5>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">iterator</span><span class="special">/</span><span class="identifier">advance</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.iterators.metafunctions.advance.example"></a><h5>
<a name="id474393"></a>
<a href="advance.html#fusion.iterators.metafunctions.advance.example">Example</a>
</h5>
<pre class="programlisting">
<span class="keyword">typedef</span> <a href="../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">double</span><span class="special">,</span><span class="keyword">char</span><span class="special">&gt;</span> <span class="identifier">vec</span><span class="special">;</span>
<span class="keyword">typedef</span> <a href="../../sequences/intrinsics/metafunctions/begin.html" title="begin"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">begin</span></tt></a><span class="special">&lt;</span><span class="identifier">vec</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">first</span><span class="special">;</span>
<span class="keyword">typedef</span> <a href="next.html" title="next"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">next</span></tt></a><span class="special">&lt;</span><span class="identifier">first</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">second</span><span class="special">;</span>
<span class="keyword">typedef</span> <a href="next.html" title="next"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">next</span></tt></a><span class="special">&lt;</span><span class="identifier">second</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">third</span><span class="special">;</span>
<span class="identifier">BOOST_MPL_ASSERT</span><span class="special">((</span><a href="equal_to.html" title="equal_to"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">equal_to</span></tt></a><span class="special">&lt;</span><a href="advance.html" title="advance"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">advance</span></tt></a><span class="special">&lt;</span><span class="identifier">first</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">int_</span><span class="special">&lt;</span><span class="number">2</span><span class="special">&gt;</span> <span class="special">&gt;::</span><span class="identifier">type</span><span class="special">,</span> <span class="identifier">third</span><span class="special">&gt;));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
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<div class="section" lang="en">
<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.iterators.metafunctions.advance_c"></a><a href="advance_c.html" title="advance_c">advance_c</a></h4></div></div></div>
<a name="fusion.iterators.metafunctions.advance_c.description"></a><h5>
<a name="id474854"></a>
<a href="advance_c.html#fusion.iterators.metafunctions.advance_c.description">Description</a>
</h5>
<p>
Moves an iterator by a specified distance.
</p>
<a name="fusion.iterators.metafunctions.advance_c.synopsis"></a><h5>
<a name="id474885"></a>
<a href="advance_c.html#fusion.iterators.metafunctions.advance_c.synopsis">Synopsis</a>
</h5>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">I</span><span class="special">,</span>
<span class="keyword">int</span> <span class="identifier">N</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">advance_c</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id475002"></a><p class="title"><b>Table<EFBFBD>1.18.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Parameter</th>
<th>Requirement</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><tt class="computeroutput"><span class="identifier">I</span></tt></td>
<td>Model
of <a href="../concepts/forward_iterator.html" title="Forward
Iterator">Forward
Iterator</a>
</td>
<td>Iterator to move relative to</td>
</tr>
<tr>
<td><tt class="computeroutput"><span class="identifier">N</span></tt></td>
<td>Integer
constant</td>
<td>Number of positions to move</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.iterators.metafunctions.advance_c.expression_semantics"></a><h5>
<a name="id475096"></a>
<a href="advance_c.html#fusion.iterators.metafunctions.advance_c.expression_semantics">Expression
Semantics</a>
</h5>
<pre class="programlisting">
<a href="advance_c.html" title="advance_c"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">advance_c</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">N</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of the same iterator
concept as <tt class="computeroutput"><span class="identifier">I</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns an iterator a distance
<tt class="computeroutput"><span class="identifier">N</span></tt> from <tt class="computeroutput"><span class="identifier">I</span></tt>.
If <tt class="computeroutput"><span class="identifier">I</span></tt> is a <a href="../concepts/bidirectional_iterator.html" title="Bidirectional
Iterator">Bidirectional
Iterator</a> then <tt class="computeroutput"><span class="identifier">N</span></tt>
may be negative. Equivalent to <tt class="computeroutput"><a href="advance.html" title="advance"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">advance</span></tt></a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span><EFBFBD><span class="identifier">boost</span><span class="special">::</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">int_</span><span class="special">&lt;</span><span class="identifier">N</span><span class="special">&gt;</span><EFBFBD><span class="special">&gt;::</span><span class="identifier">type</span></tt>.
</p>
<a name="fusion.iterators.metafunctions.advance_c.header"></a><h5>
<a name="id475367"></a>
<a href="advance_c.html#fusion.iterators.metafunctions.advance_c.header">Header</a>
</h5>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">iterator</span><span class="special">/</span><span class="identifier">advance</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.iterators.metafunctions.advance_c.example"></a><h5>
<a name="id475461"></a>
<a href="advance_c.html#fusion.iterators.metafunctions.advance_c.example">Example</a>
</h5>
<pre class="programlisting">
<span class="keyword">typedef</span> <a href="../../sequences/containers/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">double</span><span class="special">,</span><span class="keyword">char</span><span class="special">&gt;</span> <span class="identifier">vec</span><span class="special">;</span>
<span class="keyword">typedef</span> <a href="../../sequences/intrinsics/metafunctions/begin.html" title="begin"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">begin</span></tt></a><span class="special">&lt;</span><span class="identifier">vec</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">first</span><span class="special">;</span>
<span class="keyword">typedef</span> <a href="next.html" title="next"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">next</span></tt></a><span class="special">&lt;</span><span class="identifier">first</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">second</span><span class="special">;</span>
<span class="keyword">typedef</span> <a href="next.html" title="next"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">next</span></tt></a><span class="special">&lt;</span><span class="identifier">second</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">third</span><span class="special">;</span>
<span class="identifier">BOOST_MPL_ASSERT</span><span class="special">((</span><a href="equal_to.html" title="equal_to"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">equal_to</span></tt></a><span class="special">&lt;</span><a href="advance_c.html" title="advance_c"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">advance_c</span></tt></a><span class="special">&lt;</span><span class="identifier">first</span><span class="special">,</span> <span class="number">2</span><span class="special">&gt;::</span><span class="identifier">type</span><span class="special">,</span> <span class="identifier">third</span><span class="special">&gt;));</span>
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="advance.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../../sequences.html"><img src="../../../images/next.png" alt="Next"></a>
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