1bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 2bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 3f5256e16dfc425c1d466f6308d4026d529ce9e0bHoward Hinnant// The LLVM Compiler Infrastructure 4bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 5b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// This file is dual licensed under the MIT and the University of Illinois Open 6b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// Source Licenses. See LICENSE.TXT for details. 7bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 8bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 9bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 10bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// <utility> 11bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 12bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// template <class T1, class T2> struct pair 13bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 14bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// template <class U, class V> pair(pair<U, V>&& p); 15bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <utility> 17bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <memory> 18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <cassert> 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantstruct Base 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 22bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant virtual ~Base() {} 23bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant}; 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantstruct Derived 26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant : public Base 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 28bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant}; 29bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 30bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main() 31bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 3273d21a4f0774d3fadab98e690619a359cfb160a3Howard Hinnant#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 33bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 34bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef std::pair<std::unique_ptr<Derived>, short> P1; 35bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef std::pair<std::unique_ptr<Base>, long> P2; 36bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant P1 p1(std::unique_ptr<Derived>(), 4); 37bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant P2 p2 = std::move(p1); 38bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(p2.first == nullptr); 39bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(p2.second == 4); 40bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 4173d21a4f0774d3fadab98e690619a359cfb160a3Howard Hinnant#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 42bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 43