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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// priority_queue();
// void swap(priority_queue& q);
#include <queue>
#include <cassert>
int main()
{
std::priority_queue<int> q1;
std::priority_queue<int> q2;
q1.push(1);
q1.push(3);
q1.push(2);
q1.swap(q2);
assert(q1.empty());
assert(q2.size() == 3);
assert(q2.top() == 3);
}
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