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re PR libstdc++/67374 (std::cbegin can't call valarray range access functions)

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PR libstdc++/67374
	* include/bits/range_access.h (valarray, begin, end): Declare.
	* testsuite/26_numerics/valarray/range_access.cc: Test const
	overloads.
	* testsuite/26_numerics/valarray/range_access2.cc: New.

From-SVN: r227274
This commit is contained in:
Jonathan Wakely 2015-08-27 20:05:19 +01:00 • committed by Jonathan Wakely
parent a443ee6e5b
commit e994d230f1
4 changed files with 55 additions and 0 deletions
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8
libstdc++-v3/ChangeLog
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@ -1,3 +1,11 @@
2015-08-27 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/67374
* include/bits/range_access.h (valarray, begin, end): Declare.
* testsuite/26_numerics/valarray/range_access.cc: Test const
overloads.
* testsuite/26_numerics/valarray/range_access2.cc: New.
2015-08-27 John Marino <gnugcc@marino.st>
* acinclude.m4 (*-*-dragonfly*): Change 7 locale support files

8
libstdc++-v3/include/bits/range_access.h
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@ -98,6 +98,14 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
{ return __arr + _Nm; }
#if __cplusplus >= 201402L
template<typename _Tp> class valarray;
// These overloads must be declared for cbegin and cend to use them.
template<typename _Tp> _Tp* begin(valarray<_Tp>&);
template<typename _Tp> const _Tp* begin(const valarray<_Tp>&);
template<typename _Tp> _Tp* end(valarray<_Tp>&);
template<typename _Tp> const _Tp* end(const valarray<_Tp>&);
/**
* @brief Return an iterator pointing to the first element of
* the const container.

3
libstdc++-v3/testsuite/26_numerics/valarray/range_access.cc
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@ -28,4 +28,7 @@ test01()
std::valarray<double> va{1.0, 2.0, 3.0};
std::begin(va);
std::end(va);
const auto& cva = va;
std::begin(cva);
std::end(cva);
}

36
libstdc++-v3/testsuite/26_numerics/valarray/range_access2.cc Normal file
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@ -0,0 +1,36 @@
// { dg-do compile }
// { dg-options "-std=gnu++14" }
// Copyright (C) 2015 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/>.
// 26.6.10 valarray range access: [valarray.range]
#include <iterator>
#include <valarray>
// PR libstdc++/67374
void
test01()
{
std::valarray<double> va{1.0, 2.0, 3.0};
std::cbegin(va);
std::cend(va);
const auto& cva = va;
std::cbegin(cva);
std::cend(cva);
}