70 lines
2.3 KiB
C++
70 lines
2.3 KiB
C++
// { dg-do run { target c++11 } }
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// Copyright (C) 2010-2024 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// C++11 26.6.10 valarray range access: [valarray.range]
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#include <valarray>
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void
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test01()
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{
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std::valarray<double> va{1.0, 2.0, 3.0};
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(void) std::begin(va);
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(void) std::end(va);
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const auto& cva = va;
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(void) std::begin(cva);
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(void) std::end(cva);
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using Iter = decltype(std::begin(va));
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using IterTraits = std::iterator_traits<Iter>;
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static_assert( std::is_same<Iter, decltype(std::end(va))>::value, "" );
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static_assert( std::is_same<IterTraits::iterator_category,
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std::random_access_iterator_tag>::value, "" );
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static_assert( std::is_same<IterTraits::value_type, double>::value, "" );
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static_assert( std::is_same<IterTraits::reference, double&>::value, "" );
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using CIter = decltype(std::begin(cva));
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using CIterTraits = std::iterator_traits<CIter>;
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static_assert( std::is_same<CIter, decltype(std::end(cva))>::value, "" );
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static_assert( std::is_same<CIterTraits::iterator_category,
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std::random_access_iterator_tag>::value, "" );
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static_assert( std::is_same<CIterTraits::value_type, double>::value, "" );
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static_assert( std::is_same<CIterTraits::reference, const double&>::value, "" );
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#if __cplusplus >= 202002L
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static_assert( std::contiguous_iterator<Iter> );
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static_assert( std::contiguous_iterator<CIter> );
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#endif
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}
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// PR libstdc++/103022
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void
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test02()
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{
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std::valarray<double> va;
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(void) std::begin(va);
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(void) std::end(va);
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const auto& cva = va;
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(void) std::begin(cva);
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(void) std::end(cva);
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}
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int main()
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{
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test01();
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test02();
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}
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