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Commit Graph
143 Commits
Author SHA1 Message Date
Billy Donahue 2a0d1be60b doc: BOOST_HASH_SPECIALIZE_REF passes by const ref 2015-09-12 17:12:02 -04:00
Andy Webber d5dc5033d2 Fixed strict aliasing violation. 
Changed C-style cast and dereference to std::memcpy.  Exactly mirrors other code already in the file.
 2015-01-05 19:35:34 +00:00
Daniel James 64e85476f1 Another try at an improved hash function. 
This is based on the mix function from MurmurHash. It's not the full
algorithm as it's always seeded with 0, and doesn't do a final mix. This
should be okay as Boost.Hash doesn't claim to avalanche the bits.
 2014-02-23 10:17:08 +00:00
Daniel James c965760ea1 Improved(?) hash function. 
Given the existing interface, it's quite tricky to use most popular hash
functions without a change, so I'm using a modified version of FNV1a.
The current function always starts with a seed of 0 (and will in user
functions), so I'm adding the offset each time instead. I'm not sure if
that will work as well.
 2014-01-28 23:33:25 +00:00
Stephen Kelly e961a8a2f8 Functional: Remove obsolete MSVC version checks. 
[SVN r86051]
 2013-12-10 23:41:55 +00:00
Daniel James fb01de460f Use BOOST_HAS_PRAGMA_ONCE. 
Remembering to first include config, so that it'll actually be defined.

[SVN r86726]
 2013-12-10 23:41:13 +00:00
Stephen Kelly 9cd62829ee Remove obsolete MSVC check from pragma guard 
git grep -h -B1 "^#\s*pragma once" | grep -v pragma | sort | uniq

is now clean.

[SVN r85952]
 2013-12-10 23:40:59 +00:00
Daniel James b5e6678553 Revert changes to develop branch. 
Simplest way to merge to master.
 2013-12-10 23:18:52 +00:00
Daniel James 612861ab0d Use BOOST_HAS_PRAGMA_ONCE. 
Remembering to first include config, so that it'll actually be defined.

[SVN r86726]
 2013-11-16 20:13:24 +00:00
Daniel James 3f4d17c5e7 Only use Visual C++ pragma for appropriate versions. 
[SVN r86671]
 2013-11-12 22:09:42 +00:00
Stephen Kelly dd73970b1e Remove BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION 
Process #ifndef...#else...#endif blocks.

[SVN r86245]
 2013-10-11 23:17:48 +00:00
Stephen Kelly 3ac96347ba Remove BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION 
Process #ifdef...#endif blocks.

[SVN r86243]
 2013-10-11 23:13:10 +00:00
Daniel James 92e607de34 Simplify SFINAE for largest float overload. Refs #8822. 
I accidentally missed it out. Also fix the return values.

[SVN r86172]
 2013-10-06 08:02:35 +00:00
Stephen Kelly 6d25b771bd Functional: Remove obsolete GCC version checks. 
[SVN r86112]
 2013-10-01 08:46:45 +00:00
Stephen Kelly e887c416a6 Functional: Remove obsolete MSVC version checks. 
[SVN r86051]
 2013-09-30 11:22:29 +00:00
Stephen Kelly 29d7468979 Remove obsolete MSVC check from pragma guard 
git grep -h -B1 "^#\s*pragma once" | grep -v pragma | sort | uniq

is now clean.

[SVN r85952]
 2013-09-26 13:02:51 +00:00
Daniel James b1790e463e Fix Visual C++ warning in hash. Refs #8568. 
I changed this a little from the patch on #8568. I moved the pragmas to the
start and end of the file because I don't like to little the body of the code
with them (this does mean I've disabled a potentially useful warning, but the
code is pretty stable nowadays).

I also removed the version checks, as the warning should be present in later
versions.


[SVN r85248]
 2013-08-08 22:01:18 +00:00
Daniel James 670e7b3736 Simpler test for appropriate floats for binary hashing. Refs #8822. 
No idea if this will actually fix it.

[SVN r85246]
 2013-08-08 20:30:04 +00:00
Thomas Heller 7cc6744ff6 Fixing UB by using memcpy instead of old style cast 
[SVN r82218]
 2012-12-27 10:49:19 +00:00
Daniel James 75ffe88f82 Hash: Fix int128 with BOOST_HASH_NO_EXTENSIONS. 
I don't think int128 should count as an extension.

BOOST_HASH_NO_EXTENSIONS is actually a bit of a pain, and I don't think it's
that useful. Maybe I should deprecate it.

[SVN r81870]
 2012-12-12 09:44:32 +00:00
Daniel James f572834b59 Hash: Fix int128 support. 
[SVN r81854]
 2012-12-11 15:48:19 +00:00
Daniel James 5fcfd1ae38 Hash: Support boost::int128_type. 
[SVN r81816]
 2012-12-10 10:40:44 +00:00
Daniel James 8a0c516b22 Hash: Detab. 
[SVN r81787]
 2012-12-08 09:19:24 +00:00
Daniel James 407df60e3e Hash: Remove container_fwd_0x.hpp 
[SVN r81678]
 2012-12-02 21:12:24 +00:00
Daniel James 2380fd919e Hash: Don't use workarounds with recent compilers. #7221, #7470 
[SVN r81677]
 2012-12-02 21:11:45 +00:00
Marshall Clow 89fd55fa96 Removed missed usage of deprecated macros in Boost.Functional 
[SVN r81578]
 2012-11-26 21:45:20 +00:00
Daniel James 376d6bd5eb Hash: Revert r81122. Refs #7470. 
I'll get back to this later, it probably requires compiler specific changes.


[SVN r81124]
 2012-10-31 19:05:25 +00:00
Marshall Clow 9c2c4bb1fa Narrower 'using'; Refs #7470 
[SVN r81122]
 2012-10-31 17:14:43 +00:00
Daniel James 945d78bc4f Hash: Avoid type punning warning. 
[SVN r80217]
 2012-08-25 20:54:10 +00:00
Daniel James 2f6cb78b80 Hash: A single unified algorithm for hashing floats. 
Attempts to automatically use a binary hash for floats where it's known to
work, and then use the generic hash algorithm as a fallback.

[SVN r80177]
 2012-08-24 22:52:42 +00:00
Daniel James b286131642 Hash: Quick attempt at supporting enums. 
Thanks to Filip Konvička.


[SVN r80139]
 2012-08-22 11:40:27 +00:00
Daniel James 75aeb563ae Hash: Remove C++11 forward declarations. 
It seems that on Visual C++ Dinkumware declares shared_ptr in std, but for
Intel C++ it imports it from std::tr1. I was thinking of doing a macro check
for this, but since we're close to release, just change it to always include
the headers and never forward declare the C++11 classes, which is much safer.

I might restore the forward declarations in the future, although I'm tempted
not to. I'm not sure the improvement in compile time is worth the hassle.


[SVN r80038]
 2012-08-14 20:06:07 +00:00
Daniel James 1a126042f8 Hash: Fix smart pointer macro check. 
[SVN r79527]
 2012-07-15 07:43:40 +00:00
Daniel James 84d32ce136 Hash: std::shared_ptr, std::unique_ptr support. 
[SVN r79516]
 2012-07-14 22:32:29 +00:00
Marshall Clow e723967c7e Switch from deprecated macros to new shiny ones; no functionality change 
[SVN r79392]
 2012-07-09 20:12:04 +00:00
Daniel James f54e6e8af1 Hash: Use SFINAE to avoid implicit casts to numbers. 
[SVN r78391]
 2012-05-08 22:24:46 +00:00
Daniel James dfa8524f2f Hash: Some formatting. 
[SVN r78164]
 2012-04-23 20:49:30 +00:00
Daniel James 7444eee62b Hash: Support std::array and std::tuple. Refs #6806. 
[SVN r78144]
 2012-04-22 19:46:28 +00:00
Daniel James 3910f072cd Unordered/hash: Avoid a gcc warning. Refs #6771 
[SVN r77832]
 2012-04-08 15:29:15 +00:00
Daniel James 048d92f36a Fix copy and paste typo. Refs #4756. 
[SVN r68182]
 2011-01-16 11:06:00 +00:00
Daniel James d631763584 Oops, make new hash_value overload inline. 
[SVN r68147]
 2011-01-14 03:36:39 +00:00
Daniel James 30618f1dff Support typeindex in hash. Refs #4756. 
[SVN r68145]
 2011-01-14 03:13:39 +00:00
Daniel James 948aee8aab Fix tabs and files without copyright. 
[SVN r67612]
 2011-01-03 12:43:34 +00:00
Daniel James e2d25b5c00 Avoid -Wconversion warnings in unordered & hash. 
[SVN r67170]
 2010-12-11 14:43:00 +00:00
Daniel James 0ae94ec276 Fix hashing pointers on 64-bit OpenVMS. 
Patch by Artyom. Refs #4477

[SVN r64397]
 2010-07-27 19:18:53 +00:00
Daniel James ef1bfd0174 Only include static_assert when necessary. 
[SVN r64009]
 2010-07-14 08:28:04 +00:00
Daniel James 3bb0cd29e4 Actually, make the change to hash opt-in, rather than opt-out. It's a bit late to introduce a breaking change. 
[SVN r64007]
 2010-07-14 08:17:48 +00:00
Daniel James 892623b401 Release notes for hash. 
[SVN r63810]
 2010-07-10 13:47:47 +00:00
Daniel James 67c3951e3f Try preventing static casts when calling hash_value. 
[SVN r63716]
 2010-07-06 23:32:37 +00:00
Daniel James a7d58c92b3 Remove optimization which causes 0.5 to hash to 0. Refs #4038. 
I have an internal requirement the 0 hashes to 0, a better solution
might be to remove that, put the optimization back and hash 0 to another
value. Or alternatively, use the main combine function instead.

[SVN r60805]
 2010-03-24 08:49:00 +00:00