1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // <stack> 10 11 // reference top(); 12 13 #include <stack> 14 #include <cassert> 15 16 #include "test_macros.h" 17 main(int,char **)18int main(int, char**) 19 { 20 std::stack<int> q; 21 assert(q.size() == 0); 22 q.push(1); 23 q.push(2); 24 q.push(3); 25 int& ir = q.top(); 26 assert(ir == 3); 27 28 return 0; 29 } 30