1//===----------------------------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is dual licensed under the MIT and the University of Illinois Open 6// Source Licenses. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// UNSUPPORTED: c++98, c++03 11// 12// <functional> 13// 14// result_of<Fn(ArgTypes...)> 15 16#include <type_traits> 17#include <memory> 18#include <utility> 19#include "test_macros.h" 20 21struct wat 22{ 23 wat& operator*() { return *this; } 24 void foo(); 25}; 26 27struct F {}; 28struct FD : public F {}; 29 30#if TEST_STD_VER > 14 31template <typename T, typename U> 32struct test_invoke_result; 33 34template <typename Fn, typename ...Args, typename Ret> 35struct test_invoke_result<Fn(Args...), Ret> 36{ 37 static void call() 38 { 39 static_assert(std::is_invocable<Fn, Args...>::value, ""); 40 static_assert(std::is_invocable_r<Ret, Fn, Args...>::value, ""); 41 static_assert((std::is_same<typename std::invoke_result<Fn, Args...>::type, Ret>::value), ""); 42 static_assert((std::is_same<std::invoke_result_t<Fn, Args...>, Ret>::value), ""); 43 } 44}; 45#endif 46 47template <class T, class U> 48void test_result_of_imp() 49{ 50 static_assert((std::is_same<typename std::result_of<T>::type, U>::value), ""); 51#if TEST_STD_VER > 11 52 static_assert((std::is_same<std::result_of_t<T>, U>::value), ""); 53#endif 54#if TEST_STD_VER > 14 55 test_invoke_result<T, U>::call(); 56#endif 57} 58 59int main() 60{ 61 { 62 typedef char F::*PMD; 63 test_result_of_imp<PMD(F &), char &>(); 64 test_result_of_imp<PMD(F const &), char const &>(); 65 test_result_of_imp<PMD(F volatile &), char volatile &>(); 66 test_result_of_imp<PMD(F const volatile &), char const volatile &>(); 67 68 test_result_of_imp<PMD(F &&), char &&>(); 69 test_result_of_imp<PMD(F const &&), char const &&>(); 70 test_result_of_imp<PMD(F volatile &&), char volatile &&>(); 71 test_result_of_imp<PMD(F const volatile &&), char const volatile &&>(); 72 73 test_result_of_imp<PMD(F ), char &&>(); 74 test_result_of_imp<PMD(F const ), char &&>(); 75 test_result_of_imp<PMD(F volatile ), char &&>(); 76 test_result_of_imp<PMD(F const volatile ), char &&>(); 77 78 test_result_of_imp<PMD(FD &), char &>(); 79 test_result_of_imp<PMD(FD const &), char const &>(); 80 test_result_of_imp<PMD(FD volatile &), char volatile &>(); 81 test_result_of_imp<PMD(FD const volatile &), char const volatile &>(); 82 83 test_result_of_imp<PMD(FD &&), char &&>(); 84 test_result_of_imp<PMD(FD const &&), char const &&>(); 85 test_result_of_imp<PMD(FD volatile &&), char volatile &&>(); 86 test_result_of_imp<PMD(FD const volatile &&), char const volatile &&>(); 87 88 test_result_of_imp<PMD(FD ), char &&>(); 89 test_result_of_imp<PMD(FD const ), char &&>(); 90 test_result_of_imp<PMD(FD volatile ), char &&>(); 91 test_result_of_imp<PMD(FD const volatile ), char &&>(); 92 93 test_result_of_imp<PMD(std::unique_ptr<F>), char &>(); 94 test_result_of_imp<PMD(std::unique_ptr<F const>), const char &>(); 95 test_result_of_imp<PMD(std::unique_ptr<FD>), char &>(); 96 test_result_of_imp<PMD(std::unique_ptr<FD const>), const char &>(); 97 98 test_result_of_imp<PMD(std::reference_wrapper<F>), char &>(); 99 test_result_of_imp<PMD(std::reference_wrapper<F const>), const char &>(); 100 test_result_of_imp<PMD(std::reference_wrapper<FD>), char &>(); 101 test_result_of_imp<PMD(std::reference_wrapper<FD const>), const char &>(); 102 } 103 { 104 test_result_of_imp<int (F::* (F &)) () &, int> (); 105 test_result_of_imp<int (F::* (F &)) () const &, int> (); 106 test_result_of_imp<int (F::* (F &)) () volatile &, int> (); 107 test_result_of_imp<int (F::* (F &)) () const volatile &, int> (); 108 test_result_of_imp<int (F::* (F const &)) () const &, int> (); 109 test_result_of_imp<int (F::* (F const &)) () const volatile &, int> (); 110 test_result_of_imp<int (F::* (F volatile &)) () volatile &, int> (); 111 test_result_of_imp<int (F::* (F volatile &)) () const volatile &, int> (); 112 test_result_of_imp<int (F::* (F const volatile &)) () const volatile &, int> (); 113 114 test_result_of_imp<int (F::* (F &&)) () &&, int> (); 115 test_result_of_imp<int (F::* (F &&)) () const &&, int> (); 116 test_result_of_imp<int (F::* (F &&)) () volatile &&, int> (); 117 test_result_of_imp<int (F::* (F &&)) () const volatile &&, int> (); 118 test_result_of_imp<int (F::* (F const &&)) () const &&, int> (); 119 test_result_of_imp<int (F::* (F const &&)) () const volatile &&, int> (); 120 test_result_of_imp<int (F::* (F volatile &&)) () volatile &&, int> (); 121 test_result_of_imp<int (F::* (F volatile &&)) () const volatile &&, int> (); 122 test_result_of_imp<int (F::* (F const volatile &&)) () const volatile &&, int> (); 123 124 test_result_of_imp<int (F::* (F )) () &&, int> (); 125 test_result_of_imp<int (F::* (F )) () const &&, int> (); 126 test_result_of_imp<int (F::* (F )) () volatile &&, int> (); 127 test_result_of_imp<int (F::* (F )) () const volatile &&, int> (); 128 test_result_of_imp<int (F::* (F const )) () const &&, int> (); 129 test_result_of_imp<int (F::* (F const )) () const volatile &&, int> (); 130 test_result_of_imp<int (F::* (F volatile )) () volatile &&, int> (); 131 test_result_of_imp<int (F::* (F volatile )) () const volatile &&, int> (); 132 test_result_of_imp<int (F::* (F const volatile )) () const volatile &&, int> (); 133 } 134 { 135 test_result_of_imp<int (F::* (FD &)) () &, int> (); 136 test_result_of_imp<int (F::* (FD &)) () const &, int> (); 137 test_result_of_imp<int (F::* (FD &)) () volatile &, int> (); 138 test_result_of_imp<int (F::* (FD &)) () const volatile &, int> (); 139 test_result_of_imp<int (F::* (FD const &)) () const &, int> (); 140 test_result_of_imp<int (F::* (FD const &)) () const volatile &, int> (); 141 test_result_of_imp<int (F::* (FD volatile &)) () volatile &, int> (); 142 test_result_of_imp<int (F::* (FD volatile &)) () const volatile &, int> (); 143 test_result_of_imp<int (F::* (FD const volatile &)) () const volatile &, int> (); 144 145 test_result_of_imp<int (F::* (FD &&)) () &&, int> (); 146 test_result_of_imp<int (F::* (FD &&)) () const &&, int> (); 147 test_result_of_imp<int (F::* (FD &&)) () volatile &&, int> (); 148 test_result_of_imp<int (F::* (FD &&)) () const volatile &&, int> (); 149 test_result_of_imp<int (F::* (FD const &&)) () const &&, int> (); 150 test_result_of_imp<int (F::* (FD const &&)) () const volatile &&, int> (); 151 test_result_of_imp<int (F::* (FD volatile &&)) () volatile &&, int> (); 152 test_result_of_imp<int (F::* (FD volatile &&)) () const volatile &&, int> (); 153 test_result_of_imp<int (F::* (FD const volatile &&)) () const volatile &&, int> (); 154 155 test_result_of_imp<int (F::* (FD )) () &&, int> (); 156 test_result_of_imp<int (F::* (FD )) () const &&, int> (); 157 test_result_of_imp<int (F::* (FD )) () volatile &&, int> (); 158 test_result_of_imp<int (F::* (FD )) () const volatile &&, int> (); 159 test_result_of_imp<int (F::* (FD const )) () const &&, int> (); 160 test_result_of_imp<int (F::* (FD const )) () const volatile &&, int> (); 161 test_result_of_imp<int (F::* (FD volatile )) () volatile &&, int> (); 162 test_result_of_imp<int (F::* (FD volatile )) () const volatile &&, int> (); 163 test_result_of_imp<int (F::* (FD const volatile )) () const volatile &&, int> (); 164 } 165 { 166 test_result_of_imp<int (F::* (std::reference_wrapper<F>)) (), int>(); 167 test_result_of_imp<int (F::* (std::reference_wrapper<const F>)) () const, int>(); 168 test_result_of_imp<int (F::* (std::unique_ptr<F> )) (), int>(); 169 test_result_of_imp<int (F::* (std::unique_ptr<const F> )) () const, int>(); 170 } 171 test_result_of_imp<decltype(&wat::foo)(wat), void>(); 172} 173