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 // bool empty() const; 13 14 #include <queue> 15 #include <cassert> 16 main()17int main() 18 { 19 std::queue<int> q; 20 assert(q.empty()); 21 q.push(1); 22 assert(!q.empty()); 23 q.pop(); 24 assert(q.empty()); 25 } 26