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 // template <class T, class Container, class Compare> 15 // void swap(priority_queue<T, Container, Compare>& x, 16 // priority_queue<T, Container, Compare>& y); 17 18 #include <queue> 19 #include <cassert> 20 21 int main() 22 { 23 std::priority_queue<int> q1; 24 std::priority_queue<int> q2; 25 q1.push(1); 26 q1.push(3); 27 q1.push(2); 28 swap(q1, q2); 29 assert(q1.empty()); 30 assert(q2.size() == 3); 31 assert(q2.top() == 3); 32 } 33
