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// Copyright (C) 2018-2019 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++2a" }
// { dg-do run { target c++2a } }
#include <map>
#include <testsuite_hooks.h>
void
test01()
{
std::multimap<int, void*> m;
VERIFY( ! m.contains( 0 ) );
VERIFY( ! m.contains( 1 ) );
m.emplace(0, nullptr);
VERIFY( m.contains( 0 ) );
VERIFY( ! m.contains( 1 ) );
m.emplace(0, nullptr);
VERIFY( m.contains( 0 ) );
VERIFY( ! m.contains( 1 ) );
m.emplace(1, nullptr);
VERIFY( m.contains( 0 ) );
VERIFY( m.contains( 1 ) );
}
struct Zero { };
bool operator<(Zero, int i) { return 0 < i; }
bool operator<(int i, Zero) { return i < 0; }
struct One { };
bool operator<(One, int i) { return 1 < i; }
bool operator<(int i, One) { return i < 1; }
void
test02()
{
std::multimap<int, void*, std::less<>> m;
VERIFY( ! m.contains( Zero{} ) );
VERIFY( ! m.contains( One{} ) );
m.emplace(0, nullptr);
VERIFY( m.contains( Zero{} ) );
VERIFY( ! m.contains( One{} ) );
m.emplace(0, nullptr);
VERIFY( m.contains( Zero{} ) );
VERIFY( ! m.contains( One{} ) );
m.emplace(1, nullptr);
VERIFY( m.contains( Zero{} ) );
VERIFY( m.contains( One{} ) );
}
int
main()
{
test01();
test02();
}
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