1 // RUN: clang-cc -fsyntax-only -verify %s 2 template<typename T> 3 struct is_pointer { 4 static const bool value = false; 5 }; 6 7 template<typename T> 8 struct is_pointer<T*> { 9 static const bool value = true; 10 }; 11 12 template<typename T> 13 struct is_pointer<const T*> { 14 static const bool value = true; 15 }; 16 17 int array0[is_pointer<int>::value? -1 : 1]; 18 int array1[is_pointer<int*>::value? 1 : -1]; 19 int array2[is_pointer<const int*>::value? 1 : -1]; // expected-error{{partial ordering}} \ 20 // expected-error{{negative}} 21 22 template<typename T> 23 struct is_lvalue_reference { 24 static const bool value = false; 25 }; 26 27 template<typename T> 28 struct is_lvalue_reference<T&> { 29 static const bool value = true; 30 }; 31 32 int lvalue_ref0[is_lvalue_reference<int>::value? -1 : 1]; 33 int lvalue_ref1[is_lvalue_reference<const int&>::value? 1 : -1]; 34 35 template<typename T> 36 struct is_const { 37 static const bool value = false; 38 }; 39 40 template<typename T> 41 struct is_const<const T> { 42 static const bool value = true; 43 }; 44 45 int is_const0[is_const<int>::value? -1 : 1]; 46 int is_const1[is_const<const int>::value? 1 : -1]; 47 int is_const2[is_const<const volatile int>::value? 1 : -1]; 48 int is_const3[is_const<const int [3]>::value? 1 : -1]; 49 int is_const4[is_const<const volatile int[3]>::value? 1 : -1]; 50 int is_const4[is_const<volatile int[3]>::value? -1 : 1]; 51 52 template<typename T> 53 struct is_volatile { 54 static const bool value = false; 55 }; 56 57 template<typename T> 58 struct is_volatile<volatile T> { 59 static const bool value = true; 60 }; 61 62 int is_volatile0[is_volatile<int>::value? -1 : 1]; 63 int is_volatile1[is_volatile<volatile int>::value? 1 : -1]; 64 int is_volatile2[is_volatile<const volatile int>::value? 1 : -1]; 65 int is_volatile3[is_volatile<volatile char[3]>::value? 1 : -1]; 66 67 template<typename T, typename U> 68 struct is_same { 69 static const bool value = false; 70 }; 71 72 template<typename T> 73 struct is_same<T, T> { 74 static const bool value = true; 75 }; 76 77 typedef int INT; 78 typedef INT* int_ptr; 79 80 int is_same0[is_same<int, int>::value? 1 : -1]; 81 int is_same1[is_same<int, INT>::value? 1 : -1]; 82 int is_same2[is_same<const int, int>::value? -1 : 1]; 83 int is_same3[is_same<int_ptr, int>::value? -1 : 1]; 84 85 template<typename T> 86 struct remove_reference { 87 typedef T type; 88 }; 89 90 template<typename T> 91 struct remove_reference<T&> { 92 typedef T type; 93 }; 94 95 int remove_ref0[is_same<remove_reference<int>::type, int>::value? 1 : -1]; 96 int remove_ref1[is_same<remove_reference<int&>::type, int>::value? 1 : -1]; 97 98 template<typename T> 99 struct is_incomplete_array { 100 static const bool value = false; 101 }; 102 103 template<typename T> 104 struct is_incomplete_array<T[]> { 105 static const bool value = true; 106 }; 107 108 int incomplete_array0[is_incomplete_array<int>::value ? -1 : 1]; 109 int incomplete_array1[is_incomplete_array<int[1]>::value ? -1 : 1]; 110 int incomplete_array2[is_incomplete_array<bool[]>::value ? 1 : -1]; 111 int incomplete_array3[is_incomplete_array<int[]>::value ? 1 : -1]; 112 113 template<typename T> 114 struct is_array_with_4_elements { 115 static const bool value = false; 116 }; 117 118 template<typename T> 119 struct is_array_with_4_elements<T[4]> { 120 static const bool value = true; 121 }; 122 123 int array_with_4_elements0[is_array_with_4_elements<int[]>::value ? -1 : 1]; 124 int array_with_4_elements1[is_array_with_4_elements<int[1]>::value ? -1 : 1]; 125 int array_with_4_elements2[is_array_with_4_elements<int[4]>::value ? 1 : -1]; 126 int array_with_4_elements3[is_array_with_4_elements<int[4][2]>::value ? 1 : -1]; 127 128 template<typename T> 129 struct get_array_size; 130 131 template<typename T, unsigned N> 132 struct get_array_size<T[N]> { 133 static const unsigned value = N; 134 }; 135 136 int array_size0[get_array_size<int[12]>::value == 12? 1 : -1]; 137 138 template<typename T> 139 struct remove_extent { 140 typedef T type; 141 }; 142 143 template<typename T> 144 struct remove_extent<T[]> { 145 typedef T type; 146 }; 147 148 template<typename T, unsigned N> 149 struct remove_extent<T[N]> { 150 typedef T type; 151 }; 152 153 int remove_extent0[is_same<remove_extent<int[][5]>::type, int[5]>::value? 1 : -1]; 154 int remove_extent1[is_same<remove_extent<const int[][5]>::type, const int[5]>::value? 1 : -1]; 155 156 template<typename T> 157 struct is_unary_function { 158 static const bool value = false; 159 }; 160 161 template<typename T, typename U> 162 struct is_unary_function<T (*)(U)> { 163 static const bool value = true; 164 }; 165 166 int is_unary_function0[is_unary_function<int>::value ? -1 : 1]; 167 int is_unary_function1[is_unary_function<int (*)()>::value ? -1 : 1]; 168 int is_unary_function2[is_unary_function<int (*)(int, bool)>::value ? -1 : 1]; 169 int is_unary_function3[is_unary_function<int (*)(bool)>::value ? 1 : -1]; 170 int is_unary_function4[is_unary_function<int (*)(int)>::value ? 1 : -1]; 171 172 template<typename T> 173 struct is_unary_function_with_same_return_type_as_argument_type { 174 static const bool value = false; 175 }; 176 177 template<typename T> 178 struct is_unary_function_with_same_return_type_as_argument_type<T (*)(T)> { 179 static const bool value = true; 180 }; 181 182 int is_unary_function5[is_unary_function_with_same_return_type_as_argument_type<int>::value ? -1 : 1]; 183 int is_unary_function6[is_unary_function_with_same_return_type_as_argument_type<int (*)()>::value ? -1 : 1]; 184 int is_unary_function7[is_unary_function_with_same_return_type_as_argument_type<int (*)(int, bool)>::value ? -1 : 1]; 185 int is_unary_function8[is_unary_function_with_same_return_type_as_argument_type<int (*)(bool)>::value ? -1 : 1]; 186 int is_unary_function9[is_unary_function_with_same_return_type_as_argument_type<int (*)(int)>::value ? 1 : -1]; 187 int is_unary_function10[is_unary_function_with_same_return_type_as_argument_type<int (*)(int, ...)>::value ? -1 : 1]; 188 int is_unary_function11[is_unary_function_with_same_return_type_as_argument_type<int (* const)(int)>::value ? -1 : 1]; 189 190 template<typename T> 191 struct is_binary_function { 192 static const bool value = false; 193 }; 194 195 template<typename R, typename T1, typename T2> 196 struct is_binary_function<R(T1, T2)> { 197 static const bool value = true; 198 }; 199 200 int is_binary_function0[is_binary_function<int(float, double)>::value? 1 : -1]; 201 202 template<typename T> 203 struct is_member_pointer { 204 static const bool value = false; 205 }; 206 207 template<typename T, typename Class> 208 struct is_member_pointer<T Class::*> { 209 static const bool value = true; 210 }; 211 212 struct X { }; 213 214 int is_member_pointer0[is_member_pointer<int X::*>::value? 1 : -1]; 215 int is_member_pointer1[is_member_pointer<const int X::*>::value? 1 : -1]; 216 int is_member_pointer2[is_member_pointer<int (X::*)()>::value? 1 : -1]; 217 int is_member_pointer3[is_member_pointer<int (X::*)(int) const>::value? 1 : -1]; 218 int is_member_pointer4[is_member_pointer<int (X::**)(int) const>::value? -1 : 1]; 219 int is_member_pointer5[is_member_pointer<int>::value? -1 : 1]; 220 221 template<typename T> 222 struct is_member_function_pointer { 223 static const bool value = false; 224 }; 225 226 template<typename T, typename Class> 227 struct is_member_function_pointer<T (Class::*)()> { 228 static const bool value = true; 229 }; 230 231 template<typename T, typename Class> 232 struct is_member_function_pointer<T (Class::*)() const> { 233 static const bool value = true; 234 }; 235 236 template<typename T, typename Class> 237 struct is_member_function_pointer<T (Class::*)() volatile> { 238 static const bool value = true; 239 }; 240 241 template<typename T, typename Class> 242 struct is_member_function_pointer<T (Class::*)() const volatile> { 243 static const bool value = true; 244 }; 245 246 template<typename T, typename Class, typename A1> 247 struct is_member_function_pointer<T (Class::*)(A1)> { 248 static const bool value = true; 249 }; 250 251 template<typename T, typename Class, typename A1> 252 struct is_member_function_pointer<T (Class::*)(A1) const> { 253 static const bool value = true; 254 }; 255 256 template<typename T, typename Class, typename A1> 257 struct is_member_function_pointer<T (Class::*)(A1) volatile> { 258 static const bool value = true; 259 }; 260 261 template<typename T, typename Class, typename A1> 262 struct is_member_function_pointer<T (Class::*)(A1) const volatile> { 263 static const bool value = true; 264 }; 265 266 int is_member_function_pointer0[ 267 is_member_function_pointer<int X::*>::value? -1 : 1]; 268 int is_member_function_pointer1[ 269 is_member_function_pointer<int (X::*)()>::value? 1 : -1]; 270 int is_member_function_pointer2[ 271 is_member_function_pointer<X (X::*)(X&)>::value? 1 : -1]; 272 int is_member_function_pointer3[ 273 is_member_function_pointer<int (X::*)() const>::value? 1 : -1]; 274 int is_member_function_pointer4[ 275 is_member_function_pointer<int (X::*)(float) const>::value? 1 : -1]; 276 277 // Test substitution of non-dependent arguments back into the template 278 // argument list of the class template partial specialization. 279 template<typename T, typename ValueType = T> 280 struct is_nested_value_type_identity { 281 static const bool value = false; 282 }; 283 284 template<typename T> 285 struct is_nested_value_type_identity<T, typename T::value_type> { 286 static const bool value = true; 287 }; 288 289 template<typename T> 290 struct HasValueType { 291 typedef T value_type; 292 }; 293 294 struct HasIdentityValueType { 295 typedef HasIdentityValueType value_type; 296 }; 297 298 struct NoValueType { }; 299 300 int is_nested_value_type_identity0[ 301 is_nested_value_type_identity<HasValueType<int> >::value? -1 : 1]; 302 int is_nested_value_type_identity1[ 303 is_nested_value_type_identity<HasIdentityValueType>::value? 1 : -1]; 304 int is_nested_value_type_identity2[ 305 is_nested_value_type_identity<NoValueType>::value? -1 : 1]; 306 307 308 // C++ [temp.class.spec]p4: 309 template<class T1, class T2, int I> class A { }; //#1 310 template<class T, int I> class A<T, T*, I> { }; //#2 311 template<class T1, class T2, int I> class A<T1*, T2, I> { }; //#3 312 template<class T> class A<int, T*, 5> { }; //#4 313 template<class T1, class T2, int I> class A<T1, T2*, I> { }; //#5 314