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stl_iterator.h (make_reverse_iterator): LWG DR 2285.

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* include/bits/stl_iterator.h (make_reverse_iterator): LWG DR 2285.
	* include/std/tuple: Add feature-test macro.
	* testsuite/24_iterators/reverse_iterator/make.cc: New.

From-SVN: r218670
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Jonathan Wakely 2014-12-12 13:35:55 +00:00 • committed by Jonathan Wakely
parent 3597c8dec2
commit db62401dee
4 changed files with 55 additions and 0 deletions
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6
libstdc++-v3/ChangeLog
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@ -1,3 +1,9 @@
2014-12-12 Jonathan Wakely <jwakely@redhat.com>
* include/bits/stl_iterator.h (make_reverse_iterator): LWG DR 2285.
* include/std/tuple: Add feature-test macro.
* testsuite/24_iterators/reverse_iterator/make.cc: New.
2014-12-12 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
* testsuite/lib/libstdc++.exp: Include target-utils.exp.

12
libstdc++-v3/include/bits/stl_iterator.h
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@ -388,6 +388,18 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
{ return __y.base() - __x.base(); }
//@}
#if __cplusplus > 201103L
#define __cpp_lib_make_reverse_iterator 201402
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// DR 2285. make_reverse_iterator
/// Generator function for reverse_iterator.
template<typename _Iterator>
inline reverse_iterator<_Iterator>
make_reverse_iterator(_Iterator __i)
{ return reverse_iterator<_Iterator>(__i); }
#endif
// 24.4.2.2.1 back_insert_iterator
/**
* @brief Turns assignment into insertion.

2
libstdc++-v3/include/std/tuple
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@ -687,6 +687,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
};
#if __cplusplus > 201103L
#define __cpp_lib_tuple_element_t 201402
template<std::size_t __i, typename _Tp>
using tuple_element_t = typename tuple_element<__i, _Tp>::type;
#endif

35
libstdc++-v3/testsuite/24_iterators/reverse_iterator/make.cc Normal file
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@ -0,0 +1,35 @@
// Copyright (C) 2014 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// { dg-options "-std=gnu++14" }
#include <iterator>
#include <testsuite_hooks.h>
void
test01()
{
int a[2]{ 1, 2 };
auto b = std::make_reverse_iterator(a);
VERIFY( b == std::reverse_iterator<int*>(a) );
}
int
main()
{
test01();
}