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(const pair<U, V>& p); 15bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <utility> 17bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <cassert> 18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main() 20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 22bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef std::pair<int, short> P1; 23bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef std::pair<double, long> P2; 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant P1 p1(3, 4); 25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant P2 p2 = p1; 26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(p2.first == 3); 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(p2.second == 4); 28bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 29206f6cdc3328959aed4ece29ad65d8320da246f2Marshall Clow 30206f6cdc3328959aed4ece29ad65d8320da246f2Marshall Clow#if _LIBCPP_STD_VER > 11 31206f6cdc3328959aed4ece29ad65d8320da246f2Marshall Clow { 32206f6cdc3328959aed4ece29ad65d8320da246f2Marshall Clow typedef std::pair<int, short> P1; 33206f6cdc3328959aed4ece29ad65d8320da246f2Marshall Clow typedef std::pair<double, long> P2; 34206f6cdc3328959aed4ece29ad65d8320da246f2Marshall Clow constexpr P1 p1(3, 4); 35206f6cdc3328959aed4ece29ad65d8320da246f2Marshall Clow constexpr P2 p2 = p1; 36206f6cdc3328959aed4ece29ad65d8320da246f2Marshall Clow static_assert(p2.first == 3, ""); 37206f6cdc3328959aed4ece29ad65d8320da246f2Marshall Clow static_assert(p2.second == 4, ""); 38206f6cdc3328959aed4ece29ad65d8320da246f2Marshall Clow } 39206f6cdc3328959aed4ece29ad65d8320da246f2Marshall Clow#endif 40bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 41