59 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS10 11// <functional>12 13// less_equal14 15#include <functional>16#include <type_traits>17#include <cassert>18 19#include "test_macros.h"20#include "pointer_comparison_test_helper.h"21 22int main(int, char**)23{24 typedef std::less_equal<int> F;25 const F f = F();26#if TEST_STD_VER <= 1727 static_assert((std::is_same<int, F::first_argument_type>::value), "" );28 static_assert((std::is_same<int, F::second_argument_type>::value), "" );29 static_assert((std::is_same<bool, F::result_type>::value), "" );30#endif31 assert(f(36, 36));32 assert(!f(36, 6));33 assert(f(6, 36));34 {35 // test total ordering of int* for less_equal<int*> and36 // less_equal<void>.37 do_pointer_comparison_test<std::less_equal>();38 }39#if TEST_STD_VER > 1140 typedef std::less_equal<> F2;41 const F2 f2 = F2();42 assert( f2(36, 36));43 assert(!f2(36, 6));44 assert( f2(6, 36));45 assert(!f2(36, 6.0));46 assert(!f2(36.0, 6));47 assert( f2(6, 36.0));48 assert( f2(6.0, 36));49 50 constexpr bool foo = std::less_equal<int> () (36, 36);51 static_assert ( foo, "" );52 53 constexpr bool bar = std::less_equal<> () (36.0, 36);54 static_assert ( bar, "" );55#endif56 57 return 0;58}59