make_pair.pass.cpp revision b64f8b07c104c6cc986570ac8ee0ed16a9f23976 
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> pair<V1, V2> make_pair(T1&&, T2&&);
13
14#include <utility>
15#include <memory>
16#include <cassert>
17
18int main()
19{
20    {
21        typedef std::pair<int, short> P1;
22        P1 p1 = std::make_pair(3, 4);
23        assert(p1.first == 3);
24        assert(p1.second == 4);
25    }
26#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
27    {
28        typedef std::pair<std::unique_ptr<int>, short> P1;
29        P1 p1 = std::make_pair(std::unique_ptr<int>(new int(3)), 4);
30        assert(*p1.first == 3);
31        assert(p1.second == 4);
32    }
33    {
34        typedef std::pair<std::unique_ptr<int>, short> P1;
35        P1 p1 = std::make_pair(nullptr, 4);
36        assert(p1.first == nullptr);
37        assert(p1.second == 4);
38    }
39#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
40}
41