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// { dg-options "-std=gnu++2a" }
// { dg-do run { target c++2a } }
// Copyright (C) 2020 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 <set>
#include <testsuite_hooks.h>
struct aggressive_aggregate
{
int a;
int b;
};
bool operator<(const aggressive_aggregate& a,
const aggressive_aggregate& b)
{
return a.a < b.a;
};
void test_emplace()
{
std::set<aggressive_aggregate> x;
auto emplaced = x.emplace(1, 2);
VERIFY(emplaced.first->a == 1);
VERIFY(emplaced.first->b == 2);
emplaced = x.emplace(2);
VERIFY(emplaced.first->a == 2);
VERIFY(emplaced.first->b == 0);
emplaced = x.emplace();
VERIFY(emplaced.first->a == 0);
VERIFY(emplaced.first->b == 0);
}
void test_emplace_hint()
{
std::set<aggressive_aggregate> x;
auto it = x.emplace_hint(x.begin(),
3, 2);
VERIFY(it->a == 3);
VERIFY(it->b == 2);
it = x.emplace_hint(x.begin(),
4);
VERIFY(it->a == 4);
VERIFY(it->b == 0);
it = x.emplace_hint(x.begin());
VERIFY(it->a == 0);
VERIFY(it->b == 0);
}
int main()
{
test_emplace();
test_emplace_hint();
}
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