65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
// Copyright (C) 2018-2019 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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#include <utility>
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#include <testsuite_hooks.h>
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void
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test01()
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{
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std::pair<std::pair<int, int>, int> p;
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#if __cplusplus >= 201103L
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static_assert(sizeof(p) == (3 * sizeof(int)), "PR libstdc++/87822");
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#endif
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VERIFY( (void*)&p == (void*)&p.first );
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VERIFY( (void*)&p == (void*)&p.first.first );
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}
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struct empty { };
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void
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test02()
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{
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std::pair<std::pair<empty, empty>, empty> p;
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#if __cplusplus >= 201103L
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static_assert(sizeof(p) == (3 * sizeof(empty)), "PR libstdc++/87822");
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#endif
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VERIFY( (void*)&p == (void*)&p.first );
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}
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void
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test03()
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{
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typedef std::pair<int, int> int_pair;
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typedef std::pair<int_pair, int_pair> int_pair_pair;
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std::pair<int_pair_pair, int_pair_pair> p;
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#if __cplusplus >= 201103L
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static_assert(sizeof(int_pair_pair) == (2 * sizeof(int_pair)), "nested");
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static_assert(sizeof(p) == (2 * sizeof(int_pair_pair)), "nested again");
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#endif
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VERIFY( (void*)&p == (void*)&p.first );
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VERIFY( (void*)&p == (void*)&p.first.first );
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VERIFY( (void*)&p == (void*)&p.first.first.first );
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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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test03();
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}
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