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 // <stack> 11 12 // void swap(stack& q); 13 14 #include <stack> 15 #include <cassert> 16 17 template <class C> 18 C make(int n)19make(int n) 20 { 21 C c; 22 for (int i = 0; i < n; ++i) 23 c.push(i); 24 return c; 25 } 26 main()27int main() 28 { 29 std::stack<int> q1 = make<std::stack<int> >(5); 30 std::stack<int> q2 = make<std::stack<int> >(10); 31 std::stack<int> q1_save = q1; 32 std::stack<int> q2_save = q2; 33 q1.swap(q2); 34 assert(q1 == q2_save); 35 assert(q2 == q1_save); 36 } 37