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Update documents and tests for #8270 from Jamboree.

Browse Source 
https://svn.boost.org/trac/boost/ticket/8270

see also: b36426c8e3
This commit is contained in:
Jamboree
2013-03-09 11:17:17 +09:00
committed by Kohei Takahashi
parent 52eb8768f2
commit d03f79b6fd
3 changed files with 120 additions and 2 deletions
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36
doc/container.qbk
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@ -1949,7 +1949,7 @@ Convert a fusion sequence to a __map__.
[*Semantics]: Convert a fusion sequence, `seq`, to a __map__.
[*Precondition]: The elements of the sequence are assumed to be
[*Precondition]: For non-associative sequence, the elements are assumed to be
__fusion_pair__s. There may be no duplicate __fusion_pair__ key types.
[heading Header]
@ -1959,10 +1959,26 @@ __fusion_pair__s. There may be no duplicate __fusion_pair__ key types.
[heading Example]
// from sequence of __fusion_pair__
as_map(__make_vector__(
__fusion_make_pair__<int>('X')
, __fusion_make_pair__<double>("Men")))
// from associative sequence
namespace ns
{
struct x_member;
struct y_member;
}
BOOST_FUSION_DEFINE_ASSOC_STRUCT(
(ns),
point,
(int, x, ns::x_member)
(int, y, ns::y_member)
)
...
as_map(ns::point(123, 456))
[endsect]
[endsect]
@ -2150,7 +2166,7 @@ Returns the result type of __as_map__.
[*Semantics]: Convert a fusion sequence, `Sequence`, to a __map__.
[*Precondition]: The elements of the sequence are assumed to be
[*Precondition]: For non-associative sequence, the elements are assumed to be
__fusion_pair__s. There may be no duplicate __fusion_pair__ key types.
[heading Header]
@ -2160,10 +2176,26 @@ __fusion_pair__s. There may be no duplicate __fusion_pair__ key types.
[heading Example]
// from sequence of __fusion_pair__
result_of::as_map<__vector__<
__fusion_pair__<int, char>
, __fusion_pair__<double, std::string> > >::type
// from associative sequence
namespace ns
{
struct x_member;
struct y_member;
}
BOOST_FUSION_DEFINE_ASSOC_STRUCT(
(ns),
point,
(int, x, ns::x_member)
(int, y, ns::y_member)
)
...
result_of::as_map<ns::point>::type // __map__<__fusion_pair__<ns::x_member, int>, __fusion_pair__<ns::y_member, int> >
[endsect]
[endsect]

1
test/Jamfile
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@ -59,6 +59,7 @@ project
[ run sequence/as_deque.cpp : : : : ]
[ run sequence/as_list.cpp : : : : ]
[ run sequence/as_map.cpp : : : : ]
[ run sequence/as_map_assoc.cpp : : : : ]
[ run sequence/as_set.cpp : : : : ]
[ run sequence/as_vector.cpp : : : : ]
[ run sequence/boost_tuple.cpp : : : : ]

85
test/sequence/as_map_assoc.cpp Normal file
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@ -0,0 +1,85 @@
/*=============================================================================
Copyright (c) 2001-2011 Joel de Guzman
Distributed under 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)
==============================================================================*/
#include <boost/detail/lightweight_test.hpp>
#include <boost/fusion/adapted/struct/adapt_assoc_struct.hpp>
#include <boost/fusion/container/vector/vector.hpp>
#include <boost/fusion/adapted/mpl.hpp>
#include <boost/fusion/container/generation/make_vector.hpp>
#include <boost/fusion/container/map/convert.hpp>
#include <boost/fusion/container/generation/make_set.hpp>
#include <boost/fusion/container/vector/convert.hpp>
#include <boost/fusion/sequence/comparison/equal_to.hpp>
#include <boost/fusion/sequence/intrinsic/at_key.hpp>
#include <boost/fusion/sequence/io/out.hpp>
#include <boost/fusion/support/pair.hpp>
namespace ns
{
struct x_member;
struct y_member;
struct z_member;
struct point
{
int x;
int y;
};
}
BOOST_FUSION_ADAPT_ASSOC_STRUCT(
ns::point,
(int, x, ns::x_member)
(int, y, ns::y_member)
)
int
main()
{
using namespace boost::fusion;
using namespace boost;
std::cout << tuple_open('[');
std::cout << tuple_close(']');
std::cout << tuple_delimiter(", ");
{
ns::point p = {123, 456};
std::cout << as_map(p) << std::endl;
}
{
ns::point p = {123, 456};
boost::fusion::result_of::as_map<ns::point>::type map(p);
std::cout << at_key<ns::x_member>(map) << std::endl;
std::cout << at_key<ns::y_member>(map) << std::endl;
BOOST_TEST(at_key<ns::x_member>(map) == 123);
BOOST_TEST(at_key<ns::y_member>(map) == 456);
}
{
boost::fusion::result_of::as_map<set<int, char> >::type map(make_set(1, '2'));
BOOST_TEST(at_key<int>(map) == 1);
BOOST_TEST(at_key<char>(map) == '2');
}
{
// test conversion
typedef map<
pair<ns::x_member, int>
, pair<ns::y_member, int> >
map_type;
ns::point p = {123, 456};
map_type m(p);
BOOST_TEST(as_vector(m) == make_vector(make_pair<ns::x_member>(123), make_pair<ns::y_member>(456)));
m = (make_vector(make_pair<ns::x_member>(123), make_pair<ns::y_member>(456))); // test assign
BOOST_TEST(as_vector(m) == make_vector(make_pair<ns::x_member>(123), make_pair<ns::y_member>(456)));
}
return boost::report_errors();
}