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 U, class V> pair(const pair<U, V>& p);
15
16 #include <utility>
17 #include <cassert>
18
main()19 int main()
20 {
21 {
22 typedef std::pair<int, short> P1;
23 typedef std::pair<double, long> P2;
24 P1 p1(3, 4);
25 P2 p2 = p1;
26 assert(p2.first == 3);
27 assert(p2.second == 4);
28 }
29
30 #if _LIBCPP_STD_VER > 11
31 {
32 typedef std::pair<int, short> P1;
33 typedef std::pair<double, long> P2;
34 constexpr P1 p1(3, 4);
35 constexpr P2 p2 = p1;
36 static_assert(p2.first == 3, "");
37 static_assert(p2.second == 4, "");
38 }
39 #endif
40 }
41