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 // template <class T1, class T2> void swap(pair<T1, T2>& x, pair<T1, T2>& y);
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, static_cast<short>(4));
24 P1 p2(5, static_cast<short>(6));
25 swap(p1, p2);
26 assert(p1.first == 5);
27 assert(p1.second == 6);
28 assert(p2.first == 3);
29 assert(p2.second == 4);
30 }
31 }
32