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 // constexpr pair();
15 
16 #include <utility>
17 #include <cassert>
18 
19 int main()
20 {
21     {
22     typedef std::pair<float, short*> P;
23     P p;
24     assert(p.first == 0.0f);
25     assert(p.second == nullptr);
26     }
27 
28 #if _LIBCPP_STD_VER > 11
29     {
30     typedef std::pair<float, short*> P;
31     constexpr P p;
32     static_assert(p.first == 0.0f, "");
33     static_assert(p.second == nullptr, "");
34     }
35 #endif
36 }
37