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()19 int 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