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 // type_traits 11 12 // member_function_pointer 13 14 #include <type_traits> 15 #include "test_macros.h" 16 17 // NOTE: On Windows the function `test_is_member_function<void()>` and 18 // `test_is_member_function<void() noexcept> has the same mangled despite being 19 // a distinct instantiation. This causes Clang to emit an error. However 20 // structs do not have this problem. 21 template <class T> 22 struct test_member_function_pointer_imp { 23 static_assert(!std::is_void<T>::value, ""); 24 #if TEST_STD_VER > 11 25 static_assert(!std::is_null_pointer<T>::value, ""); 26 #endif 27 static_assert(!std::is_integral<T>::value, ""); 28 static_assert(!std::is_floating_point<T>::value, ""); 29 static_assert(!std::is_array<T>::value, ""); 30 static_assert(!std::is_pointer<T>::value, ""); 31 static_assert(!std::is_lvalue_reference<T>::value, ""); 32 static_assert(!std::is_rvalue_reference<T>::value, ""); 33 static_assert(!std::is_member_object_pointer<T>::value, ""); 34 static_assert( std::is_member_function_pointer<T>::value, ""); 35 static_assert(!std::is_enum<T>::value, ""); 36 static_assert(!std::is_union<T>::value, ""); 37 static_assert(!std::is_class<T>::value, ""); 38 static_assert(!std::is_function<T>::value, ""); 39 }; 40 41 template <class T> 42 struct test_member_function_pointer : 43 test_member_function_pointer_imp<T>, 44 test_member_function_pointer_imp<const T>, 45 test_member_function_pointer_imp<volatile T>, 46 test_member_function_pointer_imp<const volatile T> 47 { 48 }; 49 50 class Class 51 { 52 }; 53 54 struct incomplete_type; 55 56 int main() 57 { 58 test_member_function_pointer<void (Class::*)()>(); 59 test_member_function_pointer<void (Class::*)(int)>(); 60 test_member_function_pointer<void (Class::*)(int, char)>(); 61 62 test_member_function_pointer<void (Class::*)() const>(); 63 test_member_function_pointer<void (Class::*)(int) const>(); 64 test_member_function_pointer<void (Class::*)(int, char) const>(); 65 66 test_member_function_pointer<void (Class::*)() volatile>(); 67 test_member_function_pointer<void (Class::*)(int) volatile>(); 68 test_member_function_pointer<void (Class::*)(int, char) volatile>(); 69 70 test_member_function_pointer<void (Class::*)(...)>(); 71 test_member_function_pointer<void (Class::*)(int, ...)>(); 72 test_member_function_pointer<void (Class::*)(int, char, ...)>(); 73 74 test_member_function_pointer<void (Class::*)(...) const>(); 75 test_member_function_pointer<void (Class::*)(int, ...) const>(); 76 test_member_function_pointer<void (Class::*)(int, char, ...) const>(); 77 78 test_member_function_pointer<void (Class::*)(...) volatile>(); 79 test_member_function_pointer<void (Class::*)(int, ...) volatile>(); 80 test_member_function_pointer<void (Class::*)(int, char, ...) volatile>(); 81 82 83 // reference qualifiers on functions are a C++11 extension 84 #if TEST_STD_VER >= 11 85 // Noexcept qualifiers 86 test_member_function_pointer<void (Class::*)() noexcept>(); 87 test_member_function_pointer<void (Class::*)(int) noexcept>(); 88 test_member_function_pointer<void (Class::*)(int, char) noexcept>(); 89 90 test_member_function_pointer<void (Class::*)() const noexcept>(); 91 test_member_function_pointer<void (Class::*)(int) const noexcept>(); 92 test_member_function_pointer<void (Class::*)(int, char) const noexcept>(); 93 94 test_member_function_pointer<void (Class::*)() volatile noexcept>(); 95 test_member_function_pointer<void (Class::*)(int) volatile noexcept>(); 96 test_member_function_pointer<void (Class::*)(int, char) volatile noexcept>(); 97 98 test_member_function_pointer<void (Class::*)(...) noexcept>(); 99 test_member_function_pointer<void (Class::*)(int, ...) noexcept>(); 100 test_member_function_pointer<void (Class::*)(int, char, ...) noexcept>(); 101 102 test_member_function_pointer<void (Class::*)(...) const noexcept>(); 103 test_member_function_pointer<void (Class::*)(int, ...) const noexcept>(); 104 test_member_function_pointer<void (Class::*)(int, char, ...) const noexcept>(); 105 106 test_member_function_pointer<void (Class::*)(...) volatile noexcept>(); 107 test_member_function_pointer<void (Class::*)(int, ...) volatile noexcept>(); 108 test_member_function_pointer<void (Class::*)(int, char, ...) volatile noexcept>(); 109 110 // lvalue qualifiers 111 test_member_function_pointer<void (Class::*)() &>(); 112 test_member_function_pointer<void (Class::*)(int) &>(); 113 test_member_function_pointer<void (Class::*)(int, char) &>(); 114 test_member_function_pointer<void (Class::*)(...) &>(); 115 test_member_function_pointer<void (Class::*)(int,...) &>(); 116 test_member_function_pointer<void (Class::*)(int, char,...) &>(); 117 118 test_member_function_pointer<void (Class::*)() const &>(); 119 test_member_function_pointer<void (Class::*)(int) const &>(); 120 test_member_function_pointer<void (Class::*)(int, char) const &>(); 121 test_member_function_pointer<void (Class::*)(...) const &>(); 122 test_member_function_pointer<void (Class::*)(int,...) const &>(); 123 test_member_function_pointer<void (Class::*)(int, char,...) const &>(); 124 125 test_member_function_pointer<void (Class::*)() volatile &>(); 126 test_member_function_pointer<void (Class::*)(int) volatile &>(); 127 test_member_function_pointer<void (Class::*)(int, char) volatile &>(); 128 test_member_function_pointer<void (Class::*)(...) volatile &>(); 129 test_member_function_pointer<void (Class::*)(int,...) volatile &>(); 130 test_member_function_pointer<void (Class::*)(int, char,...) volatile &>(); 131 132 test_member_function_pointer<void (Class::*)() const volatile &>(); 133 test_member_function_pointer<void (Class::*)(int) const volatile &>(); 134 test_member_function_pointer<void (Class::*)(int, char) const volatile &>(); 135 test_member_function_pointer<void (Class::*)(...) const volatile &>(); 136 test_member_function_pointer<void (Class::*)(int,...) const volatile &>(); 137 test_member_function_pointer<void (Class::*)(int, char,...) const volatile &>(); 138 139 // Lvalue qualifiers with noexcept 140 test_member_function_pointer<void (Class::*)() & noexcept>(); 141 test_member_function_pointer<void (Class::*)(int) & noexcept>(); 142 test_member_function_pointer<void (Class::*)(int, char) & noexcept>(); 143 test_member_function_pointer<void (Class::*)(...) & noexcept>(); 144 test_member_function_pointer<void (Class::*)(int,...) & noexcept>(); 145 test_member_function_pointer<void (Class::*)(int, char,...) & noexcept>(); 146 147 test_member_function_pointer<void (Class::*)() const & noexcept>(); 148 test_member_function_pointer<void (Class::*)(int) const & noexcept>(); 149 test_member_function_pointer<void (Class::*)(int, char) const & noexcept>(); 150 test_member_function_pointer<void (Class::*)(...) const & noexcept>(); 151 test_member_function_pointer<void (Class::*)(int,...) const & noexcept>(); 152 test_member_function_pointer<void (Class::*)(int, char,...) const & noexcept>(); 153 154 test_member_function_pointer<void (Class::*)() volatile & noexcept>(); 155 test_member_function_pointer<void (Class::*)(int) volatile & noexcept>(); 156 test_member_function_pointer<void (Class::*)(int, char) volatile & noexcept>(); 157 test_member_function_pointer<void (Class::*)(...) volatile & noexcept>(); 158 test_member_function_pointer<void (Class::*)(int,...) volatile & noexcept>(); 159 test_member_function_pointer<void (Class::*)(int, char,...) volatile & noexcept>(); 160 161 test_member_function_pointer<void (Class::*)() const volatile & noexcept>(); 162 test_member_function_pointer<void (Class::*)(int) const volatile & noexcept>(); 163 test_member_function_pointer<void (Class::*)(int, char) const volatile & noexcept>(); 164 test_member_function_pointer<void (Class::*)(...) const volatile & noexcept>(); 165 test_member_function_pointer<void (Class::*)(int,...) const volatile & noexcept>(); 166 test_member_function_pointer<void (Class::*)(int, char,...) const volatile & noexcept>(); 167 168 // RValue qualifiers 169 test_member_function_pointer<void (Class::*)() &&>(); 170 test_member_function_pointer<void (Class::*)(int) &&>(); 171 test_member_function_pointer<void (Class::*)(int, char) &&>(); 172 test_member_function_pointer<void (Class::*)(...) &&>(); 173 test_member_function_pointer<void (Class::*)(int,...) &&>(); 174 test_member_function_pointer<void (Class::*)(int, char,...) &&>(); 175 176 test_member_function_pointer<void (Class::*)() const &&>(); 177 test_member_function_pointer<void (Class::*)(int) const &&>(); 178 test_member_function_pointer<void (Class::*)(int, char) const &&>(); 179 test_member_function_pointer<void (Class::*)(...) const &&>(); 180 test_member_function_pointer<void (Class::*)(int,...) const &&>(); 181 test_member_function_pointer<void (Class::*)(int, char,...) const &&>(); 182 183 test_member_function_pointer<void (Class::*)() volatile &&>(); 184 test_member_function_pointer<void (Class::*)(int) volatile &&>(); 185 test_member_function_pointer<void (Class::*)(int, char) volatile &&>(); 186 test_member_function_pointer<void (Class::*)(...) volatile &&>(); 187 test_member_function_pointer<void (Class::*)(int,...) volatile &&>(); 188 test_member_function_pointer<void (Class::*)(int, char,...) volatile &&>(); 189 190 test_member_function_pointer<void (Class::*)() const volatile &&>(); 191 test_member_function_pointer<void (Class::*)(int) const volatile &&>(); 192 test_member_function_pointer<void (Class::*)(int, char) const volatile &&>(); 193 test_member_function_pointer<void (Class::*)(...) const volatile &&>(); 194 test_member_function_pointer<void (Class::*)(int,...) const volatile &&>(); 195 test_member_function_pointer<void (Class::*)(int, char,...) const volatile &&>(); 196 197 // RValue qualifiers with noexcept 198 test_member_function_pointer<void (Class::*)() && noexcept>(); 199 test_member_function_pointer<void (Class::*)(int) && noexcept>(); 200 test_member_function_pointer<void (Class::*)(int, char) && noexcept>(); 201 test_member_function_pointer<void (Class::*)(...) && noexcept>(); 202 test_member_function_pointer<void (Class::*)(int,...) && noexcept>(); 203 test_member_function_pointer<void (Class::*)(int, char,...) && noexcept>(); 204 205 test_member_function_pointer<void (Class::*)() const && noexcept>(); 206 test_member_function_pointer<void (Class::*)(int) const && noexcept>(); 207 test_member_function_pointer<void (Class::*)(int, char) const && noexcept>(); 208 test_member_function_pointer<void (Class::*)(...) const && noexcept>(); 209 test_member_function_pointer<void (Class::*)(int,...) const && noexcept>(); 210 test_member_function_pointer<void (Class::*)(int, char,...) const && noexcept>(); 211 212 test_member_function_pointer<void (Class::*)() volatile && noexcept>(); 213 test_member_function_pointer<void (Class::*)(int) volatile && noexcept>(); 214 test_member_function_pointer<void (Class::*)(int, char) volatile && noexcept>(); 215 test_member_function_pointer<void (Class::*)(...) volatile && noexcept>(); 216 test_member_function_pointer<void (Class::*)(int,...) volatile && noexcept>(); 217 test_member_function_pointer<void (Class::*)(int, char,...) volatile && noexcept>(); 218 219 test_member_function_pointer<void (Class::*)() const volatile && noexcept>(); 220 test_member_function_pointer<void (Class::*)(int) const volatile && noexcept>(); 221 test_member_function_pointer<void (Class::*)(int, char) const volatile && noexcept>(); 222 test_member_function_pointer<void (Class::*)(...) const volatile && noexcept>(); 223 test_member_function_pointer<void (Class::*)(int,...) const volatile && noexcept>(); 224 test_member_function_pointer<void (Class::*)(int, char,...) const volatile && noexcept>(); 225 #endif 226 227 // LWG#2582 228 static_assert(!std::is_member_function_pointer<incomplete_type>::value, ""); 229 } 230
