rv_pair_U_V.pass.cpp revision 73d21a4f0774d3fadab98e690619a359cfb160a3 
1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. 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(pair<U, V>&& p);
15
16#include <utility>
17#include <memory>
18#include <cassert>
19
20struct Base
21{
22    virtual ~Base() {}
23};
24
25struct Derived
26    : public Base
27{
28};
29
30int main()
31{
32#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
33    {
34        typedef std::pair<std::unique_ptr<Derived>, short> P1;
35        typedef std::pair<std::unique_ptr<Base>, long> P2;
36        P1 p1(std::unique_ptr<Derived>(), 4);
37        P2 p2 = std::move(p1);
38        assert(p2.first == nullptr);
39        assert(p2.second == 4);
40    }
41#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
42}
43