111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert//===----------------------------------------------------------------------===// 211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// 311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// The LLVM Compiler Infrastructure 411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// 511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// This file is dual licensed under the MIT and the University of Illinois Open 611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Source Licenses. See LICENSE.TXT for details. 711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// 811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert//===----------------------------------------------------------------------===// 911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 1011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// <functional> 1111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 1211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// equal_to 1311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 1411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <functional> 1511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <type_traits> 1611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <cassert> 1711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 1811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint main() 1911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert{ 2011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert typedef std::equal_to<int> F; 2111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const F f = F(); 2211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert static_assert((std::is_same<int, F::first_argument_type>::value), "" ); 2311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert static_assert((std::is_same<int, F::second_argument_type>::value), "" ); 2411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert static_assert((std::is_same<bool, F::result_type>::value), "" ); 2511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert assert(f(36, 36)); 2611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert assert(!f(36, 6)); 2711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if _LIBCPP_STD_VER > 11 2811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert typedef std::equal_to<> F2; 2911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const F2 f2 = F2(); 3011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert assert(f2(36, 36)); 3111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert assert(!f2(36, 6)); 3211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert assert(f2(36, 36.0)); 3311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert assert(f2(36.0, 36L)); 3411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 3511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert constexpr bool foo = std::equal_to<int> () (36, 36); 3611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert static_assert ( foo, "" ); 3711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 3811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert constexpr bool bar = std::equal_to<> () (36.0, 36); 3911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert static_assert ( bar, "" ); 4011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 4111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 42