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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <queue>
// priority_queue();
// template <class T, class Container, class Compare>
// void swap(priority_queue<T, Container, Compare>& x,
// priority_queue<T, Container, Compare>& y);
#include <queue>
#include <cassert>
#include "test_macros.h"
int main(int, char**)
{
std::priority_queue<int> q1;
std::priority_queue<int> q2;
q1.push(1);
q1.push(3);
q1.push(2);
swap(q1, q2);
assert(q1.empty());
assert(q2.size() == 3);
assert(q2.top() == 3);
return 0;
}
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