38 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9// <stack>10 11// template <class T, class Container>12// void swap(stack<T, Container>& x, stack<T, Container>& y);13 14#include <stack>15#include <cassert>16 17#include "test_macros.h"18 19template <class C>20C make(int n) {21 C c;22 for (int i = 0; i < n; ++i)23 c.push(i);24 return c;25}26 27int main(int, char**) {28 std::stack<int> q1 = make<std::stack<int> >(5);29 std::stack<int> q2 = make<std::stack<int> >(10);30 std::stack<int> q1_save = q1;31 std::stack<int> q2_save = q2;32 swap(q1, q2);33 assert(q1 == q2_save);34 assert(q2 == q1_save);35 36 return 0;37}38