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 // <utility> 11 12 // template <class T1, class T2> struct pair 13 14 // void swap(pair& p); 15 16 #include <utility> 17 #include <cassert> 18 main()19int main() 20 { 21 { 22 typedef std::pair<int, short> P1; 23 P1 p1(3, 4); 24 P1 p2(5, 6); 25 p1.swap(p2); 26 assert(p1.first == 5); 27 assert(p1.second == 6); 28 assert(p2.first == 3); 29 assert(p2.second == 4); 30 } 31 } 32