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