Eric Fiselier | 13858ee | 2015-03-17 18:28:14 +0000 | [diff] [blame] | 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, c++11 |
| 11 | |
| 12 | // <experimental/tuple> |
| 13 | |
| 14 | // template <class F, class T> constexpr decltype(auto) apply(F &&, T &&) |
| 15 | |
| 16 | // Test function types. |
| 17 | |
| 18 | #include <experimental/tuple> |
| 19 | #include <array> |
| 20 | #include <utility> |
| 21 | #include <cassert> |
| 22 | |
Eric Fiselier | 13858ee | 2015-03-17 18:28:14 +0000 | [diff] [blame] | 23 | namespace ex = std::experimental; |
| 24 | |
| 25 | int count = 0; |
| 26 | |
| 27 | void f_void_0() { ++count; } |
| 28 | void f_void_1(int i) { count += i; } |
| 29 | void f_void_2(int x, int y) { count += (x + y); } |
| 30 | void f_void_3(int x, int y, int z) { count += (x + y + z); } |
| 31 | |
| 32 | int f_int_0() { return ++count; } |
| 33 | int f_int_1(int x) { return count += x; } |
| 34 | int f_int_2(int x, int y) { return count += (x + y); } |
| 35 | int f_int_3(int x, int y, int z) { return count += (x + y + z); } |
| 36 | |
| 37 | struct A_void_0 |
| 38 | { |
| 39 | A_void_0() {} |
| 40 | void operator()() { ++count; } |
| 41 | void operator()() const { ++count; ++count; } |
| 42 | }; |
| 43 | |
| 44 | struct A_void_1 |
| 45 | { |
| 46 | A_void_1() {} |
| 47 | void operator()(int x) { count += x; } |
| 48 | void operator()(int x) const { count += x + 1; } |
| 49 | }; |
| 50 | |
| 51 | struct A_void_2 |
| 52 | { |
| 53 | A_void_2() {} |
| 54 | void operator()(int x, int y) { count += (x + y); } |
| 55 | void operator()(int x, int y) const { count += (x + y) + 1; } |
| 56 | }; |
| 57 | |
| 58 | struct A_void_3 |
| 59 | { |
| 60 | A_void_3() {} |
| 61 | void operator()(int x, int y, int z) { count += (x + y + z); } |
| 62 | void operator()(int x, int y, int z) const { count += (x + y + z) + 1; } |
| 63 | }; |
| 64 | |
| 65 | |
| 66 | struct A_int_0 |
| 67 | { |
| 68 | A_int_0() {} |
| 69 | int operator()() { return ++count; } |
| 70 | int operator()() const { ++count; return ++count; } |
| 71 | }; |
| 72 | |
| 73 | struct A_int_1 |
| 74 | { |
| 75 | A_int_1() {} |
| 76 | int operator()(int x) { return count += x; } |
| 77 | int operator()(int x) const { return count += (x + 1); } |
| 78 | |
| 79 | }; |
| 80 | |
| 81 | struct A_int_2 |
| 82 | { |
| 83 | A_int_2() {} |
| 84 | int operator()(int x, int y) { return count += (x + y); } |
| 85 | int operator()(int x, int y) const { return count += (x + y + 1); } |
| 86 | }; |
| 87 | |
| 88 | struct A_int_3 |
| 89 | { |
| 90 | A_int_3() {} |
| 91 | int operator()(int x, int y, int z) { return count += (x + y + z); } |
| 92 | int operator()(int x, int y, int z) const { return count += (x + y + z + 1); } |
| 93 | }; |
| 94 | |
| 95 | |
| 96 | template <class Tuple> |
| 97 | void test_void_0() |
| 98 | { |
| 99 | count = 0; |
| 100 | // function |
| 101 | { |
| 102 | Tuple t{}; |
| 103 | ex::apply(f_void_0, t); |
| 104 | assert(count == 1); |
| 105 | } |
| 106 | count = 0; |
| 107 | // function pointer |
| 108 | { |
| 109 | Tuple t{}; |
| 110 | auto fp = &f_void_0; |
| 111 | ex::apply(fp, t); |
| 112 | assert(count == 1); |
| 113 | } |
| 114 | count = 0; |
| 115 | // functor |
| 116 | { |
| 117 | Tuple t{}; |
| 118 | A_void_0 a; |
| 119 | ex::apply(a, t); |
| 120 | assert(count == 1); |
| 121 | } |
| 122 | count = 0; |
| 123 | // const functor |
| 124 | { |
| 125 | Tuple t{}; |
| 126 | A_void_0 const a; |
| 127 | ex::apply(a, t); |
| 128 | assert(count == 2); |
| 129 | } |
| 130 | } |
| 131 | |
| 132 | template <class Tuple> |
| 133 | void test_void_1() |
| 134 | { |
| 135 | count = 0; |
| 136 | // function |
| 137 | { |
| 138 | Tuple t{1}; |
| 139 | ex::apply(f_void_1, t); |
| 140 | assert(count == 1); |
| 141 | } |
| 142 | count = 0; |
| 143 | // function pointer |
| 144 | { |
| 145 | Tuple t{2}; |
| 146 | void (*fp)(int) = f_void_1; |
| 147 | ex::apply(fp, t); |
| 148 | assert(count == 2); |
| 149 | } |
| 150 | count = 0; |
| 151 | // functor |
| 152 | { |
| 153 | Tuple t{3}; |
| 154 | A_void_1 fn; |
| 155 | ex::apply(fn, t); |
| 156 | assert(count == 3); |
| 157 | } |
| 158 | count = 0; |
| 159 | // const functor |
| 160 | { |
| 161 | Tuple t{4}; |
| 162 | A_void_1 const a; |
| 163 | ex::apply(a, t); |
| 164 | assert(count == 5); |
| 165 | } |
| 166 | } |
| 167 | |
| 168 | template <class Tuple> |
| 169 | void test_void_2() |
| 170 | { |
| 171 | count = 0; |
| 172 | // function |
| 173 | { |
| 174 | Tuple t{1, 2}; |
| 175 | ex::apply(f_void_2, t); |
| 176 | assert(count == 3); |
| 177 | } |
| 178 | count = 0; |
| 179 | // function pointer |
| 180 | { |
| 181 | Tuple t{2, 3}; |
| 182 | auto fp = &f_void_2; |
| 183 | ex::apply(fp, t); |
| 184 | assert(count == 5); |
| 185 | } |
| 186 | count = 0; |
| 187 | // functor |
| 188 | { |
| 189 | Tuple t{3, 4}; |
| 190 | A_void_2 a; |
| 191 | ex::apply(a, t); |
| 192 | assert(count == 7); |
| 193 | } |
| 194 | count = 0; |
| 195 | // const functor |
| 196 | { |
| 197 | Tuple t{4, 5}; |
| 198 | A_void_2 const a; |
| 199 | ex::apply(a, t); |
| 200 | assert(count == 10); |
| 201 | } |
| 202 | } |
| 203 | |
| 204 | template <class Tuple> |
| 205 | void test_void_3() |
| 206 | { |
| 207 | count = 0; |
| 208 | // function |
| 209 | { |
| 210 | Tuple t{1, 2, 3}; |
| 211 | ex::apply(f_void_3, t); |
| 212 | assert(count == 6); |
| 213 | } |
| 214 | count = 0; |
| 215 | // function pointer |
| 216 | { |
| 217 | Tuple t{2, 3, 4}; |
| 218 | auto fp = &f_void_3; |
| 219 | ex::apply(fp, t); |
| 220 | assert(count == 9); |
| 221 | } |
| 222 | count = 0; |
| 223 | // functor |
| 224 | { |
| 225 | Tuple t{3, 4, 5}; |
| 226 | A_void_3 a; |
| 227 | ex::apply(a, t); |
| 228 | assert(count == 12); |
| 229 | } |
| 230 | count = 0; |
| 231 | // const functor |
| 232 | { |
| 233 | Tuple t{4, 5, 6}; |
| 234 | A_void_3 const a; |
| 235 | ex::apply(a, t); |
| 236 | assert(count == 16); |
| 237 | } |
| 238 | } |
| 239 | |
| 240 | |
| 241 | |
| 242 | template <class Tuple> |
| 243 | void test_int_0() |
| 244 | { |
| 245 | count = 0; |
| 246 | // function |
| 247 | { |
| 248 | Tuple t{}; |
| 249 | assert(1 == ex::apply(f_int_0, t)); |
| 250 | assert(count == 1); |
| 251 | } |
| 252 | count = 0; |
| 253 | // function pointer |
| 254 | { |
| 255 | Tuple t{}; |
| 256 | auto fp = &f_int_0; |
| 257 | assert(1 == ex::apply(fp, t)); |
| 258 | assert(count == 1); |
| 259 | } |
| 260 | count = 0; |
| 261 | // functor |
| 262 | { |
| 263 | Tuple t{}; |
| 264 | A_int_0 a; |
| 265 | assert(1 == ex::apply(a, t)); |
| 266 | assert(count == 1); |
| 267 | } |
| 268 | count = 0; |
| 269 | // const functor |
| 270 | { |
| 271 | Tuple t{}; |
| 272 | A_int_0 const a; |
| 273 | assert(2 == ex::apply(a, t)); |
| 274 | assert(count == 2); |
| 275 | } |
| 276 | } |
| 277 | |
| 278 | template <class Tuple> |
| 279 | void test_int_1() |
| 280 | { |
| 281 | count = 0; |
| 282 | // function |
| 283 | { |
| 284 | Tuple t{1}; |
| 285 | assert(1 == ex::apply(f_int_1, t)); |
| 286 | assert(count == 1); |
| 287 | } |
| 288 | count = 0; |
| 289 | // function pointer |
| 290 | { |
| 291 | Tuple t{2}; |
| 292 | int (*fp)(int) = f_int_1; |
| 293 | assert(2 == ex::apply(fp, t)); |
| 294 | assert(count == 2); |
| 295 | } |
| 296 | count = 0; |
| 297 | // functor |
| 298 | { |
| 299 | Tuple t{3}; |
| 300 | A_int_1 fn; |
| 301 | assert(3 == ex::apply(fn, t)); |
| 302 | assert(count == 3); |
| 303 | } |
| 304 | count = 0; |
| 305 | // const functor |
| 306 | { |
| 307 | Tuple t{4}; |
| 308 | A_int_1 const a; |
| 309 | assert(5 == ex::apply(a, t)); |
| 310 | assert(count == 5); |
| 311 | } |
| 312 | } |
| 313 | |
| 314 | template <class Tuple> |
| 315 | void test_int_2() |
| 316 | { |
| 317 | count = 0; |
| 318 | // function |
| 319 | { |
| 320 | Tuple t{1, 2}; |
| 321 | assert(3 == ex::apply(f_int_2, t)); |
| 322 | assert(count == 3); |
| 323 | } |
| 324 | count = 0; |
| 325 | // function pointer |
| 326 | { |
| 327 | Tuple t{2, 3}; |
| 328 | auto fp = &f_int_2; |
| 329 | assert(5 == ex::apply(fp, t)); |
| 330 | assert(count == 5); |
| 331 | } |
| 332 | count = 0; |
| 333 | // functor |
| 334 | { |
| 335 | Tuple t{3, 4}; |
| 336 | A_int_2 a; |
| 337 | assert(7 == ex::apply(a, t)); |
| 338 | assert(count == 7); |
| 339 | } |
| 340 | count = 0; |
| 341 | // const functor |
| 342 | { |
| 343 | Tuple t{4, 5}; |
| 344 | A_int_2 const a; |
| 345 | assert(10 == ex::apply(a, t)); |
| 346 | assert(count == 10); |
| 347 | } |
| 348 | } |
| 349 | |
| 350 | template <class Tuple> |
| 351 | void test_int_3() |
| 352 | { |
| 353 | count = 0; |
| 354 | // function |
| 355 | { |
| 356 | Tuple t{1, 2, 3}; |
| 357 | assert(6 == ex::apply(f_int_3, t)); |
| 358 | assert(count == 6); |
| 359 | } |
| 360 | count = 0; |
| 361 | // function pointer |
| 362 | { |
| 363 | Tuple t{2, 3, 4}; |
| 364 | auto fp = &f_int_3; |
| 365 | assert(9 == ex::apply(fp, t)); |
| 366 | assert(count == 9); |
| 367 | } |
| 368 | count = 0; |
| 369 | // functor |
| 370 | { |
| 371 | Tuple t{3, 4, 5}; |
| 372 | A_int_3 a; |
| 373 | assert(12 == ex::apply(a, t)); |
| 374 | assert(count == 12); |
| 375 | } |
| 376 | count = 0; |
| 377 | // const functor |
| 378 | { |
| 379 | Tuple t{4, 5, 6}; |
| 380 | A_int_3 const a; |
| 381 | assert(16 == ex::apply(a, t)); |
| 382 | assert(count == 16); |
| 383 | } |
| 384 | } |
| 385 | |
| 386 | template <class Tuple> |
| 387 | void test_0() |
| 388 | { |
| 389 | test_void_0<Tuple>(); |
| 390 | test_int_0<Tuple>(); |
| 391 | } |
| 392 | |
| 393 | template <class Tuple> |
| 394 | void test_1() |
| 395 | { |
| 396 | test_void_1<Tuple>(); |
| 397 | test_int_1<Tuple>(); |
| 398 | } |
| 399 | |
| 400 | template <class Tuple> |
| 401 | void test_2() |
| 402 | { |
| 403 | test_void_2<Tuple>(); |
| 404 | test_int_2<Tuple>(); |
| 405 | } |
| 406 | |
| 407 | template <class Tuple> |
| 408 | void test_3() |
| 409 | { |
| 410 | test_void_3<Tuple>(); |
| 411 | test_int_3<Tuple>(); |
| 412 | } |
| 413 | |
| 414 | int main() |
| 415 | { |
| 416 | test_0<std::tuple<>>(); |
| 417 | |
| 418 | test_1<std::tuple<int>>(); |
| 419 | test_1<std::array<int, 1>>(); |
| 420 | |
| 421 | test_2<std::tuple<int, int>>(); |
| 422 | test_2<std::pair<int, int>>(); |
| 423 | test_2<std::array<int, 2>>(); |
| 424 | |
| 425 | test_3<std::tuple<int, int, int>>(); |
| 426 | test_3<std::array<int, 3>>(); |
| 427 | } |