| 1 | #ifndef STD_COMPARE_H |
| 2 | #define STD_COMPARE_H |
| 3 | |
| 4 | namespace std { |
| 5 | inline namespace __1 { |
| 6 | |
| 7 | // exposition only |
| 8 | enum class _EqResult : unsigned char { |
| 9 | __zero = 0, |
| 10 | __equal = __zero, |
| 11 | __equiv = __equal, |
| 12 | __nonequal = 1, |
| 13 | __nonequiv = __nonequal |
| 14 | }; |
| 15 | |
| 16 | enum class _OrdResult : signed char { |
| 17 | __less = -1, |
| 18 | __greater = 1 |
| 19 | }; |
| 20 | |
| 21 | enum class _NCmpResult : signed char { |
| 22 | __unordered = -127 |
| 23 | }; |
| 24 | |
| 25 | struct _CmpUnspecifiedType; |
| 26 | using _CmpUnspecifiedParam = void (_CmpUnspecifiedType::*)(); |
| 27 | |
| 28 | class weak_equality { |
| 29 | constexpr explicit weak_equality(_EqResult __val) noexcept : __value_(__val) {} |
| 30 | |
| 31 | public: |
| 32 | static const weak_equality equivalent; |
| 33 | static const weak_equality nonequivalent; |
| 34 | |
| 35 | friend constexpr bool operator==(weak_equality __v, _CmpUnspecifiedParam) noexcept; |
| 36 | friend constexpr bool operator==(_CmpUnspecifiedParam, weak_equality __v) noexcept; |
| 37 | friend constexpr bool operator!=(weak_equality __v, _CmpUnspecifiedParam) noexcept; |
| 38 | friend constexpr bool operator!=(_CmpUnspecifiedParam, weak_equality __v) noexcept; |
| 39 | friend constexpr weak_equality operator<=>(weak_equality __v, _CmpUnspecifiedParam) noexcept; |
| 40 | friend constexpr weak_equality operator<=>(_CmpUnspecifiedParam, weak_equality __v) noexcept; |
| 41 | |
| 42 | // test helper |
| 43 | constexpr bool test_eq(weak_equality const &other) const noexcept { |
| 44 | return __value_ == other.__value_; |
| 45 | } |
| 46 | |
| 47 | private: |
| 48 | _EqResult __value_; |
| 49 | }; |
| 50 | |
| 51 | inline constexpr weak_equality weak_equality::equivalent(_EqResult::__equiv); |
| 52 | inline constexpr weak_equality weak_equality::nonequivalent(_EqResult::__nonequiv); |
| 53 | inline constexpr bool operator==(weak_equality __v, _CmpUnspecifiedParam) noexcept { |
| 54 | return __v.__value_ == _EqResult::__zero; |
| 55 | } |
| 56 | inline constexpr bool operator==(_CmpUnspecifiedParam, weak_equality __v) noexcept { |
| 57 | return __v.__value_ == _EqResult::__zero; |
| 58 | } |
| 59 | inline constexpr bool operator!=(weak_equality __v, _CmpUnspecifiedParam) noexcept { |
| 60 | return __v.__value_ != _EqResult::__zero; |
| 61 | } |
| 62 | inline constexpr bool operator!=(_CmpUnspecifiedParam, weak_equality __v) noexcept { |
| 63 | return __v.__value_ != _EqResult::__zero; |
| 64 | } |
| 65 | |
| 66 | inline constexpr weak_equality operator<=>(weak_equality __v, _CmpUnspecifiedParam) noexcept { |
| 67 | return __v; |
| 68 | } |
| 69 | inline constexpr weak_equality operator<=>(_CmpUnspecifiedParam, weak_equality __v) noexcept { |
| 70 | return __v; |
| 71 | } |
| 72 | |
| 73 | class strong_equality { |
| 74 | explicit constexpr strong_equality(_EqResult __val) noexcept : __value_(__val) {} |
| 75 | |
| 76 | public: |
| 77 | static const strong_equality equal; |
| 78 | static const strong_equality nonequal; |
| 79 | static const strong_equality equivalent; |
| 80 | static const strong_equality nonequivalent; |
| 81 | |
| 82 | // conversion |
| 83 | constexpr operator weak_equality() const noexcept { |
| 84 | return __value_ == _EqResult::__zero ? weak_equality::equivalent |
| 85 | : weak_equality::nonequivalent; |
| 86 | } |
| 87 | |
| 88 | // comparisons |
| 89 | friend constexpr bool operator==(strong_equality __v, _CmpUnspecifiedParam) noexcept; |
| 90 | friend constexpr bool operator!=(strong_equality __v, _CmpUnspecifiedParam) noexcept; |
| 91 | friend constexpr bool operator==(_CmpUnspecifiedParam, strong_equality __v) noexcept; |
| 92 | friend constexpr bool operator!=(_CmpUnspecifiedParam, strong_equality __v) noexcept; |
| 93 | |
| 94 | friend constexpr strong_equality operator<=>(strong_equality __v, _CmpUnspecifiedParam) noexcept; |
| 95 | friend constexpr strong_equality operator<=>(_CmpUnspecifiedParam, strong_equality __v) noexcept; |
| 96 | |
| 97 | // test helper |
| 98 | constexpr bool test_eq(strong_equality const &other) const noexcept { |
| 99 | return __value_ == other.__value_; |
| 100 | } |
| 101 | |
| 102 | private: |
| 103 | _EqResult __value_; |
| 104 | }; |
| 105 | |
| 106 | inline constexpr strong_equality strong_equality::equal(_EqResult::__equal); |
| 107 | inline constexpr strong_equality strong_equality::nonequal(_EqResult::__nonequal); |
| 108 | inline constexpr strong_equality strong_equality::equivalent(_EqResult::__equiv); |
| 109 | inline constexpr strong_equality strong_equality::nonequivalent(_EqResult::__nonequiv); |
| 110 | constexpr bool operator==(strong_equality __v, _CmpUnspecifiedParam) noexcept { |
| 111 | return __v.__value_ == _EqResult::__zero; |
| 112 | } |
| 113 | constexpr bool operator==(_CmpUnspecifiedParam, strong_equality __v) noexcept { |
| 114 | return __v.__value_ == _EqResult::__zero; |
| 115 | } |
| 116 | constexpr bool operator!=(strong_equality __v, _CmpUnspecifiedParam) noexcept { |
| 117 | return __v.__value_ != _EqResult::__zero; |
| 118 | } |
| 119 | constexpr bool operator!=(_CmpUnspecifiedParam, strong_equality __v) noexcept { |
| 120 | return __v.__value_ != _EqResult::__zero; |
| 121 | } |
| 122 | |
| 123 | constexpr strong_equality operator<=>(strong_equality __v, _CmpUnspecifiedParam) noexcept { |
| 124 | return __v; |
| 125 | } |
| 126 | constexpr strong_equality operator<=>(_CmpUnspecifiedParam, strong_equality __v) noexcept { |
| 127 | return __v; |
| 128 | } |
| 129 | |
| 130 | class partial_ordering { |
| 131 | using _ValueT = signed char; |
| 132 | explicit constexpr partial_ordering(_EqResult __v) noexcept |
| 133 | : __value_(_ValueT(__v)) {} |
| 134 | explicit constexpr partial_ordering(_OrdResult __v) noexcept |
| 135 | : __value_(_ValueT(__v)) {} |
| 136 | explicit constexpr partial_ordering(_NCmpResult __v) noexcept |
| 137 | : __value_(_ValueT(__v)) {} |
| 138 | |
| 139 | constexpr bool __is_ordered() const noexcept { |
| 140 | return __value_ != _ValueT(_NCmpResult::__unordered); |
| 141 | } |
| 142 | |
| 143 | public: |
| 144 | // valid values |
| 145 | static const partial_ordering less; |
| 146 | static const partial_ordering equivalent; |
| 147 | static const partial_ordering greater; |
| 148 | static const partial_ordering unordered; |
| 149 | |
| 150 | // conversion |
| 151 | constexpr operator weak_equality() const noexcept { |
| 152 | return __value_ == 0 ? weak_equality::equivalent : weak_equality::nonequivalent; |
| 153 | } |
| 154 | |
| 155 | // comparisons |
| 156 | friend constexpr bool operator==(partial_ordering __v, _CmpUnspecifiedParam) noexcept; |
| 157 | friend constexpr bool operator!=(partial_ordering __v, _CmpUnspecifiedParam) noexcept; |
| 158 | friend constexpr bool operator<(partial_ordering __v, _CmpUnspecifiedParam) noexcept; |
| 159 | friend constexpr bool operator<=(partial_ordering __v, _CmpUnspecifiedParam) noexcept; |
| 160 | friend constexpr bool operator>(partial_ordering __v, _CmpUnspecifiedParam) noexcept; |
| 161 | friend constexpr bool operator>=(partial_ordering __v, _CmpUnspecifiedParam) noexcept; |
| 162 | friend constexpr bool operator==(_CmpUnspecifiedParam, partial_ordering __v) noexcept; |
| 163 | friend constexpr bool operator!=(_CmpUnspecifiedParam, partial_ordering __v) noexcept; |
| 164 | friend constexpr bool operator<(_CmpUnspecifiedParam, partial_ordering __v) noexcept; |
| 165 | friend constexpr bool operator<=(_CmpUnspecifiedParam, partial_ordering __v) noexcept; |
| 166 | friend constexpr bool operator>(_CmpUnspecifiedParam, partial_ordering __v) noexcept; |
| 167 | friend constexpr bool operator>=(_CmpUnspecifiedParam, partial_ordering __v) noexcept; |
| 168 | |
| 169 | friend constexpr partial_ordering operator<=>(partial_ordering __v, _CmpUnspecifiedParam) noexcept; |
| 170 | friend constexpr partial_ordering operator<=>(_CmpUnspecifiedParam, partial_ordering __v) noexcept; |
| 171 | |
| 172 | // test helper |
| 173 | constexpr bool test_eq(partial_ordering const &other) const noexcept { |
| 174 | return __value_ == other.__value_; |
| 175 | } |
| 176 | |
| 177 | private: |
| 178 | _ValueT __value_; |
| 179 | }; |
| 180 | |
| 181 | inline constexpr partial_ordering partial_ordering::less(_OrdResult::__less); |
| 182 | inline constexpr partial_ordering partial_ordering::equivalent(_EqResult::__equiv); |
| 183 | inline constexpr partial_ordering partial_ordering::greater(_OrdResult::__greater); |
| 184 | inline constexpr partial_ordering partial_ordering::unordered(_NCmpResult ::__unordered); |
| 185 | constexpr bool operator==(partial_ordering __v, _CmpUnspecifiedParam) noexcept { |
| 186 | return __v.__is_ordered() && __v.__value_ == 0; |
| 187 | } |
| 188 | constexpr bool operator<(partial_ordering __v, _CmpUnspecifiedParam) noexcept { |
| 189 | return __v.__is_ordered() && __v.__value_ < 0; |
| 190 | } |
| 191 | constexpr bool operator<=(partial_ordering __v, _CmpUnspecifiedParam) noexcept { |
| 192 | return __v.__is_ordered() && __v.__value_ <= 0; |
| 193 | } |
| 194 | constexpr bool operator>(partial_ordering __v, _CmpUnspecifiedParam) noexcept { |
| 195 | return __v.__is_ordered() && __v.__value_ > 0; |
| 196 | } |
| 197 | constexpr bool operator>=(partial_ordering __v, _CmpUnspecifiedParam) noexcept { |
| 198 | return __v.__is_ordered() && __v.__value_ >= 0; |
| 199 | } |
| 200 | constexpr bool operator==(_CmpUnspecifiedParam, partial_ordering __v) noexcept { |
| 201 | return __v.__is_ordered() && 0 == __v.__value_; |
| 202 | } |
| 203 | constexpr bool operator<(_CmpUnspecifiedParam, partial_ordering __v) noexcept { |
| 204 | return __v.__is_ordered() && 0 < __v.__value_; |
| 205 | } |
| 206 | constexpr bool operator<=(_CmpUnspecifiedParam, partial_ordering __v) noexcept { |
| 207 | return __v.__is_ordered() && 0 <= __v.__value_; |
| 208 | } |
| 209 | constexpr bool operator>(_CmpUnspecifiedParam, partial_ordering __v) noexcept { |
| 210 | return __v.__is_ordered() && 0 > __v.__value_; |
| 211 | } |
| 212 | constexpr bool operator>=(_CmpUnspecifiedParam, partial_ordering __v) noexcept { |
| 213 | return __v.__is_ordered() && 0 >= __v.__value_; |
| 214 | } |
| 215 | constexpr bool operator!=(partial_ordering __v, _CmpUnspecifiedParam) noexcept { |
| 216 | return !__v.__is_ordered() || __v.__value_ != 0; |
| 217 | } |
| 218 | constexpr bool operator!=(_CmpUnspecifiedParam, partial_ordering __v) noexcept { |
| 219 | return !__v.__is_ordered() || __v.__value_ != 0; |
| 220 | } |
| 221 | |
| 222 | constexpr partial_ordering operator<=>(partial_ordering __v, _CmpUnspecifiedParam) noexcept { |
| 223 | return __v; |
| 224 | } |
| 225 | constexpr partial_ordering operator<=>(_CmpUnspecifiedParam, partial_ordering __v) noexcept { |
| 226 | return __v < 0 ? partial_ordering::greater : (__v > 0 ? partial_ordering::less : __v); |
| 227 | } |
| 228 | |
| 229 | class weak_ordering { |
| 230 | using _ValueT = signed char; |
| 231 | explicit constexpr weak_ordering(_EqResult __v) noexcept : __value_(_ValueT(__v)) {} |
| 232 | explicit constexpr weak_ordering(_OrdResult __v) noexcept : __value_(_ValueT(__v)) {} |
| 233 | |
| 234 | public: |
| 235 | static const weak_ordering less; |
| 236 | static const weak_ordering equivalent; |
| 237 | static const weak_ordering greater; |
| 238 | |
| 239 | // conversions |
| 240 | constexpr operator weak_equality() const noexcept { |
| 241 | return __value_ == 0 ? weak_equality::equivalent |
| 242 | : weak_equality::nonequivalent; |
| 243 | } |
| 244 | constexpr operator partial_ordering() const noexcept { |
| 245 | return __value_ == 0 ? partial_ordering::equivalent |
| 246 | : (__value_ < 0 ? partial_ordering::less : partial_ordering::greater); |
| 247 | } |
| 248 | |
| 249 | // comparisons |
| 250 | friend constexpr bool operator==(weak_ordering __v, _CmpUnspecifiedParam) noexcept; |
| 251 | friend constexpr bool operator!=(weak_ordering __v, _CmpUnspecifiedParam) noexcept; |
| 252 | friend constexpr bool operator<(weak_ordering __v, _CmpUnspecifiedParam) noexcept; |
| 253 | friend constexpr bool operator<=(weak_ordering __v, _CmpUnspecifiedParam) noexcept; |
| 254 | friend constexpr bool operator>(weak_ordering __v, _CmpUnspecifiedParam) noexcept; |
| 255 | friend constexpr bool operator>=(weak_ordering __v, _CmpUnspecifiedParam) noexcept; |
| 256 | friend constexpr bool operator==(_CmpUnspecifiedParam, weak_ordering __v) noexcept; |
| 257 | friend constexpr bool operator!=(_CmpUnspecifiedParam, weak_ordering __v) noexcept; |
| 258 | friend constexpr bool operator<(_CmpUnspecifiedParam, weak_ordering __v) noexcept; |
| 259 | friend constexpr bool operator<=(_CmpUnspecifiedParam, weak_ordering __v) noexcept; |
| 260 | friend constexpr bool operator>(_CmpUnspecifiedParam, weak_ordering __v) noexcept; |
| 261 | friend constexpr bool operator>=(_CmpUnspecifiedParam, weak_ordering __v) noexcept; |
| 262 | |
| 263 | friend constexpr weak_ordering operator<=>(weak_ordering __v, _CmpUnspecifiedParam) noexcept; |
| 264 | friend constexpr weak_ordering operator<=>(_CmpUnspecifiedParam, weak_ordering __v) noexcept; |
| 265 | |
| 266 | // test helper |
| 267 | constexpr bool test_eq(weak_ordering const &other) const noexcept { |
| 268 | return __value_ == other.__value_; |
| 269 | } |
| 270 | |
| 271 | private: |
| 272 | _ValueT __value_; |
| 273 | }; |
| 274 | |
| 275 | inline constexpr weak_ordering weak_ordering::less(_OrdResult::__less); |
| 276 | inline constexpr weak_ordering weak_ordering::equivalent(_EqResult::__equiv); |
| 277 | inline constexpr weak_ordering weak_ordering::greater(_OrdResult::__greater); |
| 278 | constexpr bool operator==(weak_ordering __v, _CmpUnspecifiedParam) noexcept { |
| 279 | return __v.__value_ == 0; |
| 280 | } |
| 281 | constexpr bool operator!=(weak_ordering __v, _CmpUnspecifiedParam) noexcept { |
| 282 | return __v.__value_ != 0; |
| 283 | } |
| 284 | constexpr bool operator<(weak_ordering __v, _CmpUnspecifiedParam) noexcept { |
| 285 | return __v.__value_ < 0; |
| 286 | } |
| 287 | constexpr bool operator<=(weak_ordering __v, _CmpUnspecifiedParam) noexcept { |
| 288 | return __v.__value_ <= 0; |
| 289 | } |
| 290 | constexpr bool operator>(weak_ordering __v, _CmpUnspecifiedParam) noexcept { |
| 291 | return __v.__value_ > 0; |
| 292 | } |
| 293 | constexpr bool operator>=(weak_ordering __v, _CmpUnspecifiedParam) noexcept { |
| 294 | return __v.__value_ >= 0; |
| 295 | } |
| 296 | constexpr bool operator==(_CmpUnspecifiedParam, weak_ordering __v) noexcept { |
| 297 | return 0 == __v.__value_; |
| 298 | } |
| 299 | constexpr bool operator!=(_CmpUnspecifiedParam, weak_ordering __v) noexcept { |
| 300 | return 0 != __v.__value_; |
| 301 | } |
| 302 | constexpr bool operator<(_CmpUnspecifiedParam, weak_ordering __v) noexcept { |
| 303 | return 0 < __v.__value_; |
| 304 | } |
| 305 | constexpr bool operator<=(_CmpUnspecifiedParam, weak_ordering __v) noexcept { |
| 306 | return 0 <= __v.__value_; |
| 307 | } |
| 308 | constexpr bool operator>(_CmpUnspecifiedParam, weak_ordering __v) noexcept { |
| 309 | return 0 > __v.__value_; |
| 310 | } |
| 311 | constexpr bool operator>=(_CmpUnspecifiedParam, weak_ordering __v) noexcept { |
| 312 | return 0 >= __v.__value_; |
| 313 | } |
| 314 | |
| 315 | constexpr weak_ordering operator<=>(weak_ordering __v, _CmpUnspecifiedParam) noexcept { |
| 316 | return __v; |
| 317 | } |
| 318 | constexpr weak_ordering operator<=>(_CmpUnspecifiedParam, weak_ordering __v) noexcept { |
| 319 | return __v < 0 ? weak_ordering::greater : (__v > 0 ? weak_ordering::less : __v); |
| 320 | } |
| 321 | |
| 322 | class strong_ordering { |
| 323 | using _ValueT = signed char; |
| 324 | explicit constexpr strong_ordering(_EqResult __v) noexcept : __value_(static_cast<signed char>(__v)) {} |
| 325 | explicit constexpr strong_ordering(_OrdResult __v) noexcept : __value_(static_cast<signed char>(__v)) {} |
| 326 | |
| 327 | public: |
| 328 | static const strong_ordering less; |
| 329 | static const strong_ordering equal; |
| 330 | static const strong_ordering equivalent; |
| 331 | static const strong_ordering greater; |
| 332 | |
| 333 | // conversions |
| 334 | constexpr operator weak_equality() const noexcept { |
| 335 | return __value_ == 0 ? weak_equality::equivalent |
| 336 | : weak_equality::nonequivalent; |
| 337 | } |
| 338 | constexpr operator strong_equality() const noexcept { |
| 339 | return __value_ == 0 ? strong_equality::equal |
| 340 | : strong_equality::nonequal; |
| 341 | } |
| 342 | constexpr operator partial_ordering() const noexcept { |
| 343 | return __value_ == 0 ? partial_ordering::equivalent |
| 344 | : (__value_ < 0 ? partial_ordering::less : partial_ordering::greater); |
| 345 | } |
| 346 | constexpr operator weak_ordering() const noexcept { |
| 347 | return __value_ == 0 ? weak_ordering::equivalent |
| 348 | : (__value_ < 0 ? weak_ordering::less : weak_ordering::greater); |
| 349 | } |
| 350 | |
| 351 | // comparisons |
| 352 | friend constexpr bool operator==(strong_ordering __v, _CmpUnspecifiedParam) noexcept; |
| 353 | friend constexpr bool operator!=(strong_ordering __v, _CmpUnspecifiedParam) noexcept; |
| 354 | friend constexpr bool operator<(strong_ordering __v, _CmpUnspecifiedParam) noexcept; |
| 355 | friend constexpr bool operator<=(strong_ordering __v, _CmpUnspecifiedParam) noexcept; |
| 356 | friend constexpr bool operator>(strong_ordering __v, _CmpUnspecifiedParam) noexcept; |
| 357 | friend constexpr bool operator>=(strong_ordering __v, _CmpUnspecifiedParam) noexcept; |
| 358 | friend constexpr bool operator==(_CmpUnspecifiedParam, strong_ordering __v) noexcept; |
| 359 | friend constexpr bool operator!=(_CmpUnspecifiedParam, strong_ordering __v) noexcept; |
| 360 | friend constexpr bool operator<(_CmpUnspecifiedParam, strong_ordering __v) noexcept; |
| 361 | friend constexpr bool operator<=(_CmpUnspecifiedParam, strong_ordering __v) noexcept; |
| 362 | friend constexpr bool operator>(_CmpUnspecifiedParam, strong_ordering __v) noexcept; |
| 363 | friend constexpr bool operator>=(_CmpUnspecifiedParam, strong_ordering __v) noexcept; |
| 364 | |
| 365 | friend constexpr strong_ordering operator<=>(strong_ordering __v, _CmpUnspecifiedParam) noexcept; |
| 366 | friend constexpr strong_ordering operator<=>(_CmpUnspecifiedParam, strong_ordering __v) noexcept; |
| 367 | |
| 368 | // test helper |
| 369 | constexpr bool test_eq(strong_ordering const &other) const noexcept { |
| 370 | return __value_ == other.__value_; |
| 371 | } |
| 372 | |
| 373 | private: |
| 374 | _ValueT __value_; |
| 375 | }; |
| 376 | |
| 377 | inline constexpr strong_ordering strong_ordering::less(_OrdResult::__less); |
| 378 | inline constexpr strong_ordering strong_ordering::equal(_EqResult::__equal); |
| 379 | inline constexpr strong_ordering strong_ordering::equivalent(_EqResult::__equiv); |
| 380 | inline constexpr strong_ordering strong_ordering::greater(_OrdResult::__greater); |
| 381 | |
| 382 | constexpr bool operator==(strong_ordering __v, _CmpUnspecifiedParam) noexcept { |
| 383 | return __v.__value_ == 0; |
| 384 | } |
| 385 | constexpr bool operator!=(strong_ordering __v, _CmpUnspecifiedParam) noexcept { |
| 386 | return __v.__value_ != 0; |
| 387 | } |
| 388 | constexpr bool operator<(strong_ordering __v, _CmpUnspecifiedParam) noexcept { |
| 389 | return __v.__value_ < 0; |
| 390 | } |
| 391 | constexpr bool operator<=(strong_ordering __v, _CmpUnspecifiedParam) noexcept { |
| 392 | return __v.__value_ <= 0; |
| 393 | } |
| 394 | constexpr bool operator>(strong_ordering __v, _CmpUnspecifiedParam) noexcept { |
| 395 | return __v.__value_ > 0; |
| 396 | } |
| 397 | constexpr bool operator>=(strong_ordering __v, _CmpUnspecifiedParam) noexcept { |
| 398 | return __v.__value_ >= 0; |
| 399 | } |
| 400 | constexpr bool operator==(_CmpUnspecifiedParam, strong_ordering __v) noexcept { |
| 401 | return 0 == __v.__value_; |
| 402 | } |
| 403 | constexpr bool operator!=(_CmpUnspecifiedParam, strong_ordering __v) noexcept { |
| 404 | return 0 != __v.__value_; |
| 405 | } |
| 406 | constexpr bool operator<(_CmpUnspecifiedParam, strong_ordering __v) noexcept { |
| 407 | return 0 < __v.__value_; |
| 408 | } |
| 409 | constexpr bool operator<=(_CmpUnspecifiedParam, strong_ordering __v) noexcept { |
| 410 | return 0 <= __v.__value_; |
| 411 | } |
| 412 | constexpr bool operator>(_CmpUnspecifiedParam, strong_ordering __v) noexcept { |
| 413 | return 0 > __v.__value_; |
| 414 | } |
| 415 | constexpr bool operator>=(_CmpUnspecifiedParam, strong_ordering __v) noexcept { |
| 416 | return 0 >= __v.__value_; |
| 417 | } |
| 418 | |
| 419 | constexpr strong_ordering operator<=>(strong_ordering __v, _CmpUnspecifiedParam) noexcept { |
| 420 | return __v; |
| 421 | } |
| 422 | constexpr strong_ordering operator<=>(_CmpUnspecifiedParam, strong_ordering __v) noexcept { |
| 423 | return __v < 0 ? strong_ordering::greater : (__v > 0 ? strong_ordering::less : __v); |
| 424 | } |
| 425 | |
| 426 | // named comparison functions |
| 427 | constexpr bool is_eq(weak_equality __cmp) noexcept { return __cmp == 0; } |
| 428 | constexpr bool is_neq(weak_equality __cmp) noexcept { return __cmp != 0; } |
| 429 | constexpr bool is_lt(partial_ordering __cmp) noexcept { return __cmp < 0; } |
| 430 | constexpr bool is_lteq(partial_ordering __cmp) noexcept { return __cmp <= 0; } |
| 431 | constexpr bool is_gt(partial_ordering __cmp) noexcept { return __cmp > 0; } |
| 432 | constexpr bool is_gteq(partial_ordering __cmp) noexcept { return __cmp >= 0; } |
| 433 | |
| 434 | } // namespace __1 |
| 435 | } // end namespace std |
| 436 | |
| 437 | #endif // STD_COMPARE_H |
| 438 | |