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// Copyright (C) 2018-2022 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/>.
#include <utility>
#include <testsuite_hooks.h>
void
test01()
{
std::pair<std::pair<int, int>, int> p;
#if __cplusplus >= 201103L
static_assert(sizeof(p) == (3 * sizeof(int)), "PR libstdc++/87822");
#endif
VERIFY( (void*)&p == (void*)&p.first );
VERIFY( (void*)&p == (void*)&p.first.first );
}
struct empty { };
void
test02()
{
std::pair<std::pair<empty, empty>, empty> p;
#if __cplusplus >= 201103L
static_assert(sizeof(p) == (3 * sizeof(empty)), "PR libstdc++/87822");
#endif
VERIFY( (void*)&p == (void*)&p.first );
}
void
test03()
{
typedef std::pair<int, int> int_pair;
typedef std::pair<int_pair, int_pair> int_pair_pair;
std::pair<int_pair_pair, int_pair_pair> p;
#if __cplusplus >= 201103L
static_assert(sizeof(int_pair_pair) == (2 * sizeof(int_pair)), "nested");
static_assert(sizeof(p) == (2 * sizeof(int_pair_pair)), "nested again");
#endif
VERIFY( (void*)&p == (void*)&p.first );
VERIFY( (void*)&p == (void*)&p.first.first );
VERIFY( (void*)&p == (void*)&p.first.first.first );
}
int main()
{
test01();
test02();
test03();
}
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