1//===----------------------------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is dual licensed under the MIT and the University of Illinois Open 6// Source Licenses. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10// <queue> 11 12// priority_queue(); 13 14// void swap(priority_queue& q); 15 16#include <queue> 17#include <cassert> 18 19int main() 20{ 21 std::priority_queue<int> q1; 22 std::priority_queue<int> q2; 23 q1.push(1); 24 q1.push(3); 25 q1.push(2); 26 q1.swap(q2); 27 assert(q1.empty()); 28 assert(q2.size() == 3); 29 assert(q2.top() == 3); 30} 31