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// <tuple> 11bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 12bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// template <class... Types> class tuple; 13bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 14bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// template <class... Types, class Alloc> 15bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// struct uses_allocator<tuple<Types...>, Alloc> : true_type { }; 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 17bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <tuple> 18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <type_traits> 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantstruct A {}; 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 22bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main() 23bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef std::tuple<> T; 26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant static_assert((std::is_base_of<std::true_type, 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::uses_allocator<T, A>>::value), ""); 28bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 29bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 30bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef std::tuple<int> T; 31bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant static_assert((std::is_base_of<std::true_type, 32bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::uses_allocator<T, A>>::value), ""); 33bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 34bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 35bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef std::tuple<char, int> T; 36bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant static_assert((std::is_base_of<std::true_type, 37bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::uses_allocator<T, A>>::value), ""); 38bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 39bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 40bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef std::tuple<double&, char, int> T; 41bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant static_assert((std::is_base_of<std::true_type, 42bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::uses_allocator<T, A>>::value), ""); 43bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 44bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 45