1 // -*- C++ -*- 2 //===---------------------------- bitset ----------------------------------===// 3 // 4 // The LLVM Compiler Infrastructure 5 // 6 // This file is dual licensed under the MIT and the University of Illinois Open 7 // Source Licenses. See LICENSE.TXT for details. 8 // 9 //===----------------------------------------------------------------------===// 10 11 #ifndef _LIBCPP_BITSET 12 #define _LIBCPP_BITSET 13 14 /* 15 bitset synopsis 16 17 namespace std 18 { 19 20 namespace std { 21 22 template <size_t N> 23 class bitset 24 { 25 public: 26 // bit reference: 27 class reference 28 { 29 friend class bitset; 30 reference() noexcept; 31 public: 32 ~reference() noexcept; 33 reference& operator=(bool x) noexcept; // for b[i] = x; 34 reference& operator=(const reference&) noexcept; // for b[i] = b[j]; 35 bool operator~() const noexcept; // flips the bit 36 operator bool() const noexcept; // for x = b[i]; 37 reference& flip() noexcept; // for b[i].flip(); 38 }; 39 40 // 23.3.5.1 constructors: 41 constexpr bitset() noexcept; 42 constexpr bitset(unsigned long long val) noexcept; 43 template <class charT> 44 explicit bitset(const charT* str, 45 typename basic_string<charT>::size_type n = basic_string<charT>::npos, 46 charT zero = charT('0'), charT one = charT('1')); 47 template<class charT, class traits, class Allocator> 48 explicit bitset(const basic_string<charT,traits,Allocator>& str, 49 typename basic_string<charT,traits,Allocator>::size_type pos = 0, 50 typename basic_string<charT,traits,Allocator>::size_type n = 51 basic_string<charT,traits,Allocator>::npos, 52 charT zero = charT('0'), charT one = charT('1')); 53 54 // 23.3.5.2 bitset operations: 55 bitset& operator&=(const bitset& rhs) noexcept; 56 bitset& operator|=(const bitset& rhs) noexcept; 57 bitset& operator^=(const bitset& rhs) noexcept; 58 bitset& operator<<=(size_t pos) noexcept; 59 bitset& operator>>=(size_t pos) noexcept; 60 bitset& set() noexcept; 61 bitset& set(size_t pos, bool val = true); 62 bitset& reset() noexcept; 63 bitset& reset(size_t pos); 64 bitset operator~() const noexcept; 65 bitset& flip() noexcept; 66 bitset& flip(size_t pos); 67 68 // element access: 69 constexpr bool operator[](size_t pos) const; // for b[i]; 70 reference operator[](size_t pos); // for b[i]; 71 unsigned long to_ulong() const; 72 unsigned long long to_ullong() const; 73 template <class charT, class traits, class Allocator> 74 basic_string<charT, traits, Allocator> to_string(charT zero = charT('0'), charT one = charT('1')) const; 75 template <class charT, class traits> 76 basic_string<charT, traits, allocator<charT> > to_string(charT zero = charT('0'), charT one = charT('1')) const; 77 template <class charT> 78 basic_string<charT, char_traits<charT>, allocator<charT> > to_string(charT zero = charT('0'), charT one = charT('1')) const; 79 basic_string<char, char_traits<char>, allocator<char> > to_string(char zero = '0', char one = '1') const; 80 size_t count() const noexcept; 81 constexpr size_t size() const noexcept; 82 bool operator==(const bitset& rhs) const noexcept; 83 bool operator!=(const bitset& rhs) const noexcept; 84 bool test(size_t pos) const; 85 bool all() const noexcept; 86 bool any() const noexcept; 87 bool none() const noexcept; 88 bitset operator<<(size_t pos) const noexcept; 89 bitset operator>>(size_t pos) const noexcept; 90 }; 91 92 // 23.3.5.3 bitset operators: 93 template <size_t N> 94 bitset<N> operator&(const bitset<N>&, const bitset<N>&) noexcept; 95 96 template <size_t N> 97 bitset<N> operator|(const bitset<N>&, const bitset<N>&) noexcept; 98 99 template <size_t N> 100 bitset<N> operator^(const bitset<N>&, const bitset<N>&) noexcept; 101 102 template <class charT, class traits, size_t N> 103 basic_istream<charT, traits>& 104 operator>>(basic_istream<charT, traits>& is, bitset<N>& x); 105 106 template <class charT, class traits, size_t N> 107 basic_ostream<charT, traits>& 108 operator<<(basic_ostream<charT, traits>& os, const bitset<N>& x); 109 110 template <size_t N> struct hash<std::bitset<N>>; 111 112 } // std 113 114 */ 115 116 #include <__config> 117 #include <__bit_reference> 118 #include <cstddef> 119 #include <climits> 120 #include <string> 121 #include <stdexcept> 122 #include <iosfwd> 123 #include <__functional_base> 124 125 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 126 #pragma GCC system_header 127 #endif 128 129 _LIBCPP_PUSH_MACROS 130 #include <__undef_macros> 131 132 133 _LIBCPP_BEGIN_NAMESPACE_STD 134 135 template <size_t _N_words, size_t _Size> 136 class __bitset; 137 138 template <size_t _N_words, size_t _Size> 139 struct __has_storage_type<__bitset<_N_words, _Size> > 140 { 141 static const bool value = true; 142 }; 143 144 template <size_t _N_words, size_t _Size> 145 class __bitset 146 { 147 public: 148 typedef ptrdiff_t difference_type; 149 typedef size_t size_type; 150 typedef size_type __storage_type; 151 protected: 152 typedef __bitset __self; 153 typedef __storage_type* __storage_pointer; 154 typedef const __storage_type* __const_storage_pointer; 155 static const unsigned __bits_per_word = static_cast<unsigned>(sizeof(__storage_type) * CHAR_BIT); 156 157 friend class __bit_reference<__bitset>; 158 friend class __bit_const_reference<__bitset>; 159 friend class __bit_iterator<__bitset, false>; 160 friend class __bit_iterator<__bitset, true>; 161 friend struct __bit_array<__bitset>; 162 163 __storage_type __first_[_N_words]; 164 165 typedef __bit_reference<__bitset> reference; 166 typedef __bit_const_reference<__bitset> const_reference; 167 typedef __bit_iterator<__bitset, false> iterator; 168 typedef __bit_iterator<__bitset, true> const_iterator; 169 170 _LIBCPP_INLINE_VISIBILITY 171 _LIBCPP_CONSTEXPR __bitset() _NOEXCEPT; 172 _LIBCPP_INLINE_VISIBILITY 173 explicit _LIBCPP_CONSTEXPR __bitset(unsigned long long __v) _NOEXCEPT; 174 175 _LIBCPP_INLINE_VISIBILITY reference __make_ref(size_t __pos) _NOEXCEPT 176 {return reference(__first_ + __pos / __bits_per_word, __storage_type(1) << __pos % __bits_per_word);} 177 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR const_reference __make_ref(size_t __pos) const _NOEXCEPT 178 {return const_reference(__first_ + __pos / __bits_per_word, __storage_type(1) << __pos % __bits_per_word);} 179 _LIBCPP_INLINE_VISIBILITY iterator __make_iter(size_t __pos) _NOEXCEPT 180 {return iterator(__first_ + __pos / __bits_per_word, __pos % __bits_per_word);} 181 _LIBCPP_INLINE_VISIBILITY const_iterator __make_iter(size_t __pos) const _NOEXCEPT 182 {return const_iterator(__first_ + __pos / __bits_per_word, __pos % __bits_per_word);} 183 184 _LIBCPP_INLINE_VISIBILITY 185 void operator&=(const __bitset& __v) _NOEXCEPT; 186 _LIBCPP_INLINE_VISIBILITY 187 void operator|=(const __bitset& __v) _NOEXCEPT; 188 _LIBCPP_INLINE_VISIBILITY 189 void operator^=(const __bitset& __v) _NOEXCEPT; 190 191 void flip() _NOEXCEPT; 192 _LIBCPP_INLINE_VISIBILITY unsigned long to_ulong() const 193 {return to_ulong(integral_constant<bool, _Size < sizeof(unsigned long) * CHAR_BIT>());} 194 _LIBCPP_INLINE_VISIBILITY unsigned long long to_ullong() const 195 {return to_ullong(integral_constant<bool, _Size < sizeof(unsigned long long) * CHAR_BIT>());} 196 197 bool all() const _NOEXCEPT; 198 bool any() const _NOEXCEPT; 199 _LIBCPP_INLINE_VISIBILITY 200 size_t __hash_code() const _NOEXCEPT; 201 private: 202 #ifdef _LIBCPP_CXX03_LANG 203 void __init(unsigned long long __v, false_type) _NOEXCEPT; 204 _LIBCPP_INLINE_VISIBILITY 205 void __init(unsigned long long __v, true_type) _NOEXCEPT; 206 #endif // _LIBCPP_CXX03_LANG 207 unsigned long to_ulong(false_type) const; 208 _LIBCPP_INLINE_VISIBILITY 209 unsigned long to_ulong(true_type) const; 210 unsigned long long to_ullong(false_type) const; 211 _LIBCPP_INLINE_VISIBILITY 212 unsigned long long to_ullong(true_type) const; 213 _LIBCPP_INLINE_VISIBILITY 214 unsigned long long to_ullong(true_type, false_type) const; 215 unsigned long long to_ullong(true_type, true_type) const; 216 }; 217 218 template <size_t _N_words, size_t _Size> 219 inline 220 _LIBCPP_CONSTEXPR 221 __bitset<_N_words, _Size>::__bitset() _NOEXCEPT 222 #ifndef _LIBCPP_CXX03_LANG 223 : __first_{0} 224 #endif 225 { 226 #ifdef _LIBCPP_CXX03_LANG 227 _VSTD::fill_n(__first_, _N_words, __storage_type(0)); 228 #endif 229 } 230 231 #ifdef _LIBCPP_CXX03_LANG 232 233 template <size_t _N_words, size_t _Size> 234 void 235 __bitset<_N_words, _Size>::__init(unsigned long long __v, false_type) _NOEXCEPT 236 { 237 __storage_type __t[sizeof(unsigned long long) / sizeof(__storage_type)]; 238 for (size_t __i = 0; __i < sizeof(__t)/sizeof(__t[0]); ++__i, __v >>= __bits_per_word) 239 __t[__i] = static_cast<__storage_type>(__v); 240 _VSTD::copy(__t, __t + sizeof(__t)/sizeof(__t[0]), __first_); 241 _VSTD::fill(__first_ + sizeof(__t)/sizeof(__t[0]), __first_ + sizeof(__first_)/sizeof(__first_[0]), 242 __storage_type(0)); 243 } 244 245 template <size_t _N_words, size_t _Size> 246 inline _LIBCPP_INLINE_VISIBILITY 247 void 248 __bitset<_N_words, _Size>::__init(unsigned long long __v, true_type) _NOEXCEPT 249 { 250 __first_[0] = __v; 251 _VSTD::fill(__first_ + 1, __first_ + sizeof(__first_)/sizeof(__first_[0]), __storage_type(0)); 252 } 253 254 #endif // _LIBCPP_CXX03_LANG 255 256 template <size_t _N_words, size_t _Size> 257 inline 258 _LIBCPP_CONSTEXPR 259 __bitset<_N_words, _Size>::__bitset(unsigned long long __v) _NOEXCEPT 260 #ifndef _LIBCPP_CXX03_LANG 261 #if __SIZEOF_SIZE_T__ == 8 262 : __first_{__v} 263 #elif __SIZEOF_SIZE_T__ == 4 264 : __first_{static_cast<__storage_type>(__v), static_cast<__storage_type>(__v >> __bits_per_word)} 265 #else 266 #error This constructor has not been ported to this platform 267 #endif 268 #endif 269 { 270 #ifdef _LIBCPP_CXX03_LANG 271 __init(__v, integral_constant<bool, sizeof(unsigned long long) == sizeof(__storage_type)>()); 272 #endif 273 } 274 275 template <size_t _N_words, size_t _Size> 276 inline 277 void 278 __bitset<_N_words, _Size>::operator&=(const __bitset& __v) _NOEXCEPT 279 { 280 for (size_type __i = 0; __i < _N_words; ++__i) 281 __first_[__i] &= __v.__first_[__i]; 282 } 283 284 template <size_t _N_words, size_t _Size> 285 inline 286 void 287 __bitset<_N_words, _Size>::operator|=(const __bitset& __v) _NOEXCEPT 288 { 289 for (size_type __i = 0; __i < _N_words; ++__i) 290 __first_[__i] |= __v.__first_[__i]; 291 } 292 293 template <size_t _N_words, size_t _Size> 294 inline 295 void 296 __bitset<_N_words, _Size>::operator^=(const __bitset& __v) _NOEXCEPT 297 { 298 for (size_type __i = 0; __i < _N_words; ++__i) 299 __first_[__i] ^= __v.__first_[__i]; 300 } 301 302 template <size_t _N_words, size_t _Size> 303 void 304 __bitset<_N_words, _Size>::flip() _NOEXCEPT 305 { 306 // do middle whole words 307 size_type __n = _Size; 308 __storage_pointer __p = __first_; 309 for (; __n >= __bits_per_word; ++__p, __n -= __bits_per_word) 310 *__p = ~*__p; 311 // do last partial word 312 if (__n > 0) 313 { 314 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n); 315 __storage_type __b = *__p & __m; 316 *__p &= ~__m; 317 *__p |= ~__b & __m; 318 } 319 } 320 321 template <size_t _N_words, size_t _Size> 322 unsigned long 323 __bitset<_N_words, _Size>::to_ulong(false_type) const 324 { 325 const_iterator __e = __make_iter(_Size); 326 const_iterator __i = _VSTD::find(__make_iter(sizeof(unsigned long) * CHAR_BIT), __e, true); 327 if (__i != __e) 328 __throw_overflow_error("bitset to_ulong overflow error"); 329 330 return __first_[0]; 331 } 332 333 template <size_t _N_words, size_t _Size> 334 inline 335 unsigned long 336 __bitset<_N_words, _Size>::to_ulong(true_type) const 337 { 338 return __first_[0]; 339 } 340 341 template <size_t _N_words, size_t _Size> 342 unsigned long long 343 __bitset<_N_words, _Size>::to_ullong(false_type) const 344 { 345 const_iterator __e = __make_iter(_Size); 346 const_iterator __i = _VSTD::find(__make_iter(sizeof(unsigned long long) * CHAR_BIT), __e, true); 347 if (__i != __e) 348 __throw_overflow_error("bitset to_ullong overflow error"); 349 350 return to_ullong(true_type()); 351 } 352 353 template <size_t _N_words, size_t _Size> 354 inline 355 unsigned long long 356 __bitset<_N_words, _Size>::to_ullong(true_type) const 357 { 358 return to_ullong(true_type(), integral_constant<bool, sizeof(__storage_type) < sizeof(unsigned long long)>()); 359 } 360 361 template <size_t _N_words, size_t _Size> 362 inline 363 unsigned long long 364 __bitset<_N_words, _Size>::to_ullong(true_type, false_type) const 365 { 366 return __first_[0]; 367 } 368 369 template <size_t _N_words, size_t _Size> 370 unsigned long long 371 __bitset<_N_words, _Size>::to_ullong(true_type, true_type) const 372 { 373 unsigned long long __r = __first_[0]; 374 for (std::size_t __i = 1; __i < sizeof(unsigned long long) / sizeof(__storage_type); ++__i) 375 __r |= static_cast<unsigned long long>(__first_[__i]) << (sizeof(__storage_type) * CHAR_BIT); 376 return __r; 377 } 378 379 template <size_t _N_words, size_t _Size> 380 bool 381 __bitset<_N_words, _Size>::all() const _NOEXCEPT 382 { 383 // do middle whole words 384 size_type __n = _Size; 385 __const_storage_pointer __p = __first_; 386 for (; __n >= __bits_per_word; ++__p, __n -= __bits_per_word) 387 if (~*__p) 388 return false; 389 // do last partial word 390 if (__n > 0) 391 { 392 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n); 393 if (~*__p & __m) 394 return false; 395 } 396 return true; 397 } 398 399 template <size_t _N_words, size_t _Size> 400 bool 401 __bitset<_N_words, _Size>::any() const _NOEXCEPT 402 { 403 // do middle whole words 404 size_type __n = _Size; 405 __const_storage_pointer __p = __first_; 406 for (; __n >= __bits_per_word; ++__p, __n -= __bits_per_word) 407 if (*__p) 408 return true; 409 // do last partial word 410 if (__n > 0) 411 { 412 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n); 413 if (*__p & __m) 414 return true; 415 } 416 return false; 417 } 418 419 template <size_t _N_words, size_t _Size> 420 inline 421 size_t 422 __bitset<_N_words, _Size>::__hash_code() const _NOEXCEPT 423 { 424 size_t __h = 0; 425 for (size_type __i = 0; __i < _N_words; ++__i) 426 __h ^= __first_[__i]; 427 return __h; 428 } 429 430 template <size_t _Size> 431 class __bitset<1, _Size> 432 { 433 public: 434 typedef ptrdiff_t difference_type; 435 typedef size_t size_type; 436 typedef size_type __storage_type; 437 protected: 438 typedef __bitset __self; 439 typedef __storage_type* __storage_pointer; 440 typedef const __storage_type* __const_storage_pointer; 441 static const unsigned __bits_per_word = static_cast<unsigned>(sizeof(__storage_type) * CHAR_BIT); 442 443 friend class __bit_reference<__bitset>; 444 friend class __bit_const_reference<__bitset>; 445 friend class __bit_iterator<__bitset, false>; 446 friend class __bit_iterator<__bitset, true>; 447 friend struct __bit_array<__bitset>; 448 449 __storage_type __first_; 450 451 typedef __bit_reference<__bitset> reference; 452 typedef __bit_const_reference<__bitset> const_reference; 453 typedef __bit_iterator<__bitset, false> iterator; 454 typedef __bit_iterator<__bitset, true> const_iterator; 455 456 _LIBCPP_INLINE_VISIBILITY 457 _LIBCPP_CONSTEXPR __bitset() _NOEXCEPT; 458 _LIBCPP_INLINE_VISIBILITY 459 explicit _LIBCPP_CONSTEXPR __bitset(unsigned long long __v) _NOEXCEPT; 460 461 _LIBCPP_INLINE_VISIBILITY reference __make_ref(size_t __pos) _NOEXCEPT 462 {return reference(&__first_, __storage_type(1) << __pos);} 463 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR const_reference __make_ref(size_t __pos) const _NOEXCEPT 464 {return const_reference(&__first_, __storage_type(1) << __pos);} 465 _LIBCPP_INLINE_VISIBILITY iterator __make_iter(size_t __pos) _NOEXCEPT 466 {return iterator(&__first_ + __pos / __bits_per_word, __pos % __bits_per_word);} 467 _LIBCPP_INLINE_VISIBILITY const_iterator __make_iter(size_t __pos) const _NOEXCEPT 468 {return const_iterator(&__first_ + __pos / __bits_per_word, __pos % __bits_per_word);} 469 470 _LIBCPP_INLINE_VISIBILITY 471 void operator&=(const __bitset& __v) _NOEXCEPT; 472 _LIBCPP_INLINE_VISIBILITY 473 void operator|=(const __bitset& __v) _NOEXCEPT; 474 _LIBCPP_INLINE_VISIBILITY 475 void operator^=(const __bitset& __v) _NOEXCEPT; 476 477 _LIBCPP_INLINE_VISIBILITY 478 void flip() _NOEXCEPT; 479 480 _LIBCPP_INLINE_VISIBILITY 481 unsigned long to_ulong() const; 482 _LIBCPP_INLINE_VISIBILITY 483 unsigned long long to_ullong() const; 484 485 _LIBCPP_INLINE_VISIBILITY 486 bool all() const _NOEXCEPT; 487 _LIBCPP_INLINE_VISIBILITY 488 bool any() const _NOEXCEPT; 489 490 _LIBCPP_INLINE_VISIBILITY 491 size_t __hash_code() const _NOEXCEPT; 492 }; 493 494 template <size_t _Size> 495 inline 496 _LIBCPP_CONSTEXPR 497 __bitset<1, _Size>::__bitset() _NOEXCEPT 498 : __first_(0) 499 { 500 } 501 502 template <size_t _Size> 503 inline 504 _LIBCPP_CONSTEXPR 505 __bitset<1, _Size>::__bitset(unsigned long long __v) _NOEXCEPT 506 : __first_(static_cast<__storage_type>(__v)) 507 { 508 } 509 510 template <size_t _Size> 511 inline 512 void 513 __bitset<1, _Size>::operator&=(const __bitset& __v) _NOEXCEPT 514 { 515 __first_ &= __v.__first_; 516 } 517 518 template <size_t _Size> 519 inline 520 void 521 __bitset<1, _Size>::operator|=(const __bitset& __v) _NOEXCEPT 522 { 523 __first_ |= __v.__first_; 524 } 525 526 template <size_t _Size> 527 inline 528 void 529 __bitset<1, _Size>::operator^=(const __bitset& __v) _NOEXCEPT 530 { 531 __first_ ^= __v.__first_; 532 } 533 534 template <size_t _Size> 535 inline 536 void 537 __bitset<1, _Size>::flip() _NOEXCEPT 538 { 539 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - _Size); 540 __first_ = ~__first_; 541 __first_ &= __m; 542 } 543 544 template <size_t _Size> 545 inline 546 unsigned long 547 __bitset<1, _Size>::to_ulong() const 548 { 549 return __first_; 550 } 551 552 template <size_t _Size> 553 inline 554 unsigned long long 555 __bitset<1, _Size>::to_ullong() const 556 { 557 return __first_; 558 } 559 560 template <size_t _Size> 561 inline 562 bool 563 __bitset<1, _Size>::all() const _NOEXCEPT 564 { 565 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - _Size); 566 return !(~__first_ & __m); 567 } 568 569 template <size_t _Size> 570 inline 571 bool 572 __bitset<1, _Size>::any() const _NOEXCEPT 573 { 574 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - _Size); 575 return __first_ & __m; 576 } 577 578 template <size_t _Size> 579 inline 580 size_t 581 __bitset<1, _Size>::__hash_code() const _NOEXCEPT 582 { 583 return __first_; 584 } 585 586 template <> 587 class __bitset<0, 0> 588 { 589 public: 590 typedef ptrdiff_t difference_type; 591 typedef size_t size_type; 592 typedef size_type __storage_type; 593 protected: 594 typedef __bitset __self; 595 typedef __storage_type* __storage_pointer; 596 typedef const __storage_type* __const_storage_pointer; 597 static const unsigned __bits_per_word = static_cast<unsigned>(sizeof(__storage_type) * CHAR_BIT); 598 599 friend class __bit_reference<__bitset>; 600 friend class __bit_const_reference<__bitset>; 601 friend class __bit_iterator<__bitset, false>; 602 friend class __bit_iterator<__bitset, true>; 603 friend struct __bit_array<__bitset>; 604 605 typedef __bit_reference<__bitset> reference; 606 typedef __bit_const_reference<__bitset> const_reference; 607 typedef __bit_iterator<__bitset, false> iterator; 608 typedef __bit_iterator<__bitset, true> const_iterator; 609 610 _LIBCPP_INLINE_VISIBILITY 611 _LIBCPP_CONSTEXPR __bitset() _NOEXCEPT; 612 _LIBCPP_INLINE_VISIBILITY 613 explicit _LIBCPP_CONSTEXPR __bitset(unsigned long long) _NOEXCEPT; 614 615 _LIBCPP_INLINE_VISIBILITY reference __make_ref(size_t) _NOEXCEPT 616 {return reference(0, 1);} 617 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR const_reference __make_ref(size_t) const _NOEXCEPT 618 {return const_reference(0, 1);} 619 _LIBCPP_INLINE_VISIBILITY iterator __make_iter(size_t) _NOEXCEPT 620 {return iterator(0, 0);} 621 _LIBCPP_INLINE_VISIBILITY const_iterator __make_iter(size_t) const _NOEXCEPT 622 {return const_iterator(0, 0);} 623 624 _LIBCPP_INLINE_VISIBILITY void operator&=(const __bitset&) _NOEXCEPT {} 625 _LIBCPP_INLINE_VISIBILITY void operator|=(const __bitset&) _NOEXCEPT {} 626 _LIBCPP_INLINE_VISIBILITY void operator^=(const __bitset&) _NOEXCEPT {} 627 628 _LIBCPP_INLINE_VISIBILITY void flip() _NOEXCEPT {} 629 630 _LIBCPP_INLINE_VISIBILITY unsigned long to_ulong() const {return 0;} 631 _LIBCPP_INLINE_VISIBILITY unsigned long long to_ullong() const {return 0;} 632 633 _LIBCPP_INLINE_VISIBILITY bool all() const _NOEXCEPT {return true;} 634 _LIBCPP_INLINE_VISIBILITY bool any() const _NOEXCEPT {return false;} 635 636 _LIBCPP_INLINE_VISIBILITY size_t __hash_code() const _NOEXCEPT {return 0;} 637 }; 638 639 inline 640 _LIBCPP_CONSTEXPR 641 __bitset<0, 0>::__bitset() _NOEXCEPT 642 { 643 } 644 645 inline 646 _LIBCPP_CONSTEXPR 647 __bitset<0, 0>::__bitset(unsigned long long) _NOEXCEPT 648 { 649 } 650 651 template <size_t _Size> class _LIBCPP_TEMPLATE_VIS bitset; 652 template <size_t _Size> struct hash<bitset<_Size> >; 653 654 template <size_t _Size> 655 class _LIBCPP_TEMPLATE_VIS bitset 656 : private __bitset<_Size == 0 ? 0 : (_Size - 1) / (sizeof(size_t) * CHAR_BIT) + 1, _Size> 657 { 658 public: 659 static const unsigned __n_words = _Size == 0 ? 0 : (_Size - 1) / (sizeof(size_t) * CHAR_BIT) + 1; 660 typedef __bitset<__n_words, _Size> base; 661 662 public: 663 typedef typename base::reference reference; 664 typedef typename base::const_reference const_reference; 665 666 // 23.3.5.1 constructors: 667 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR bitset() _NOEXCEPT {} 668 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 669 bitset(unsigned long long __v) _NOEXCEPT : base(__v) {} 670 template<class _CharT> 671 explicit bitset(const _CharT* __str, 672 typename basic_string<_CharT>::size_type __n = basic_string<_CharT>::npos, 673 _CharT __zero = _CharT('0'), _CharT __one = _CharT('1')); 674 template<class _CharT, class _Traits, class _Allocator> 675 explicit bitset(const basic_string<_CharT,_Traits,_Allocator>& __str, 676 typename basic_string<_CharT,_Traits,_Allocator>::size_type __pos = 0, 677 typename basic_string<_CharT,_Traits,_Allocator>::size_type __n = 678 (basic_string<_CharT,_Traits,_Allocator>::npos), 679 _CharT __zero = _CharT('0'), _CharT __one = _CharT('1')); 680 681 // 23.3.5.2 bitset operations: 682 _LIBCPP_INLINE_VISIBILITY 683 bitset& operator&=(const bitset& __rhs) _NOEXCEPT; 684 _LIBCPP_INLINE_VISIBILITY 685 bitset& operator|=(const bitset& __rhs) _NOEXCEPT; 686 _LIBCPP_INLINE_VISIBILITY 687 bitset& operator^=(const bitset& __rhs) _NOEXCEPT; 688 bitset& operator<<=(size_t __pos) _NOEXCEPT; 689 bitset& operator>>=(size_t __pos) _NOEXCEPT; 690 _LIBCPP_INLINE_VISIBILITY 691 bitset& set() _NOEXCEPT; 692 bitset& set(size_t __pos, bool __val = true); 693 _LIBCPP_INLINE_VISIBILITY 694 bitset& reset() _NOEXCEPT; 695 bitset& reset(size_t __pos); 696 _LIBCPP_INLINE_VISIBILITY 697 bitset operator~() const _NOEXCEPT; 698 _LIBCPP_INLINE_VISIBILITY 699 bitset& flip() _NOEXCEPT; 700 bitset& flip(size_t __pos); 701 702 // element access: 703 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 704 const_reference operator[](size_t __p) const {return base::__make_ref(__p);} 705 _LIBCPP_INLINE_VISIBILITY reference operator[](size_t __p) {return base::__make_ref(__p);} 706 _LIBCPP_INLINE_VISIBILITY 707 unsigned long to_ulong() const; 708 _LIBCPP_INLINE_VISIBILITY 709 unsigned long long to_ullong() const; 710 template <class _CharT, class _Traits, class _Allocator> 711 basic_string<_CharT, _Traits, _Allocator> to_string(_CharT __zero = _CharT('0'), 712 _CharT __one = _CharT('1')) const; 713 template <class _CharT, class _Traits> 714 _LIBCPP_INLINE_VISIBILITY 715 basic_string<_CharT, _Traits, allocator<_CharT> > to_string(_CharT __zero = _CharT('0'), 716 _CharT __one = _CharT('1')) const; 717 template <class _CharT> 718 _LIBCPP_INLINE_VISIBILITY 719 basic_string<_CharT, char_traits<_CharT>, allocator<_CharT> > to_string(_CharT __zero = _CharT('0'), 720 _CharT __one = _CharT('1')) const; 721 _LIBCPP_INLINE_VISIBILITY 722 basic_string<char, char_traits<char>, allocator<char> > to_string(char __zero = '0', 723 char __one = '1') const; 724 _LIBCPP_INLINE_VISIBILITY 725 size_t count() const _NOEXCEPT; 726 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR size_t size() const _NOEXCEPT {return _Size;} 727 _LIBCPP_INLINE_VISIBILITY 728 bool operator==(const bitset& __rhs) const _NOEXCEPT; 729 _LIBCPP_INLINE_VISIBILITY 730 bool operator!=(const bitset& __rhs) const _NOEXCEPT; 731 bool test(size_t __pos) const; 732 _LIBCPP_INLINE_VISIBILITY 733 bool all() const _NOEXCEPT; 734 _LIBCPP_INLINE_VISIBILITY 735 bool any() const _NOEXCEPT; 736 _LIBCPP_INLINE_VISIBILITY bool none() const _NOEXCEPT {return !any();} 737 _LIBCPP_INLINE_VISIBILITY 738 bitset operator<<(size_t __pos) const _NOEXCEPT; 739 _LIBCPP_INLINE_VISIBILITY 740 bitset operator>>(size_t __pos) const _NOEXCEPT; 741 742 private: 743 744 _LIBCPP_INLINE_VISIBILITY 745 size_t __hash_code() const _NOEXCEPT {return base::__hash_code();} 746 747 friend struct hash<bitset>; 748 }; 749 750 template <size_t _Size> 751 template<class _CharT> 752 bitset<_Size>::bitset(const _CharT* __str, 753 typename basic_string<_CharT>::size_type __n, 754 _CharT __zero, _CharT __one) 755 { 756 size_t __rlen = _VSTD::min(__n, char_traits<_CharT>::length(__str)); 757 for (size_t __i = 0; __i < __rlen; ++__i) 758 if (__str[__i] != __zero && __str[__i] != __one) 759 __throw_invalid_argument("bitset string ctor has invalid argument"); 760 761 size_t _Mp = _VSTD::min(__rlen, _Size); 762 size_t __i = 0; 763 for (; __i < _Mp; ++__i) 764 { 765 _CharT __c = __str[_Mp - 1 - __i]; 766 if (__c == __zero) 767 (*this)[__i] = false; 768 else 769 (*this)[__i] = true; 770 } 771 _VSTD::fill(base::__make_iter(__i), base::__make_iter(_Size), false); 772 } 773 774 template <size_t _Size> 775 template<class _CharT, class _Traits, class _Allocator> 776 bitset<_Size>::bitset(const basic_string<_CharT,_Traits,_Allocator>& __str, 777 typename basic_string<_CharT,_Traits,_Allocator>::size_type __pos, 778 typename basic_string<_CharT,_Traits,_Allocator>::size_type __n, 779 _CharT __zero, _CharT __one) 780 { 781 if (__pos > __str.size()) 782 __throw_out_of_range("bitset string pos out of range"); 783 784 size_t __rlen = _VSTD::min(__n, __str.size() - __pos); 785 for (size_t __i = __pos; __i < __pos + __rlen; ++__i) 786 if (!_Traits::eq(__str[__i], __zero) && !_Traits::eq(__str[__i], __one)) 787 __throw_invalid_argument("bitset string ctor has invalid argument"); 788 789 size_t _Mp = _VSTD::min(__rlen, _Size); 790 size_t __i = 0; 791 for (; __i < _Mp; ++__i) 792 { 793 _CharT __c = __str[__pos + _Mp - 1 - __i]; 794 if (_Traits::eq(__c, __zero)) 795 (*this)[__i] = false; 796 else 797 (*this)[__i] = true; 798 } 799 _VSTD::fill(base::__make_iter(__i), base::__make_iter(_Size), false); 800 } 801 802 template <size_t _Size> 803 inline 804 bitset<_Size>& 805 bitset<_Size>::operator&=(const bitset& __rhs) _NOEXCEPT 806 { 807 base::operator&=(__rhs); 808 return *this; 809 } 810 811 template <size_t _Size> 812 inline 813 bitset<_Size>& 814 bitset<_Size>::operator|=(const bitset& __rhs) _NOEXCEPT 815 { 816 base::operator|=(__rhs); 817 return *this; 818 } 819 820 template <size_t _Size> 821 inline 822 bitset<_Size>& 823 bitset<_Size>::operator^=(const bitset& __rhs) _NOEXCEPT 824 { 825 base::operator^=(__rhs); 826 return *this; 827 } 828 829 template <size_t _Size> 830 bitset<_Size>& 831 bitset<_Size>::operator<<=(size_t __pos) _NOEXCEPT 832 { 833 __pos = _VSTD::min(__pos, _Size); 834 _VSTD::copy_backward(base::__make_iter(0), base::__make_iter(_Size - __pos), base::__make_iter(_Size)); 835 _VSTD::fill_n(base::__make_iter(0), __pos, false); 836 return *this; 837 } 838 839 template <size_t _Size> 840 bitset<_Size>& 841 bitset<_Size>::operator>>=(size_t __pos) _NOEXCEPT 842 { 843 __pos = _VSTD::min(__pos, _Size); 844 _VSTD::copy(base::__make_iter(__pos), base::__make_iter(_Size), base::__make_iter(0)); 845 _VSTD::fill_n(base::__make_iter(_Size - __pos), __pos, false); 846 return *this; 847 } 848 849 template <size_t _Size> 850 inline 851 bitset<_Size>& 852 bitset<_Size>::set() _NOEXCEPT 853 { 854 _VSTD::fill_n(base::__make_iter(0), _Size, true); 855 return *this; 856 } 857 858 template <size_t _Size> 859 bitset<_Size>& 860 bitset<_Size>::set(size_t __pos, bool __val) 861 { 862 if (__pos >= _Size) 863 __throw_out_of_range("bitset set argument out of range"); 864 865 (*this)[__pos] = __val; 866 return *this; 867 } 868 869 template <size_t _Size> 870 inline 871 bitset<_Size>& 872 bitset<_Size>::reset() _NOEXCEPT 873 { 874 _VSTD::fill_n(base::__make_iter(0), _Size, false); 875 return *this; 876 } 877 878 template <size_t _Size> 879 bitset<_Size>& 880 bitset<_Size>::reset(size_t __pos) 881 { 882 if (__pos >= _Size) 883 __throw_out_of_range("bitset reset argument out of range"); 884 885 (*this)[__pos] = false; 886 return *this; 887 } 888 889 template <size_t _Size> 890 inline 891 bitset<_Size> 892 bitset<_Size>::operator~() const _NOEXCEPT 893 { 894 bitset __x(*this); 895 __x.flip(); 896 return __x; 897 } 898 899 template <size_t _Size> 900 inline 901 bitset<_Size>& 902 bitset<_Size>::flip() _NOEXCEPT 903 { 904 base::flip(); 905 return *this; 906 } 907 908 template <size_t _Size> 909 bitset<_Size>& 910 bitset<_Size>::flip(size_t __pos) 911 { 912 if (__pos >= _Size) 913 __throw_out_of_range("bitset flip argument out of range"); 914 915 reference r = base::__make_ref(__pos); 916 r = ~r; 917 return *this; 918 } 919 920 template <size_t _Size> 921 inline 922 unsigned long 923 bitset<_Size>::to_ulong() const 924 { 925 return base::to_ulong(); 926 } 927 928 template <size_t _Size> 929 inline 930 unsigned long long 931 bitset<_Size>::to_ullong() const 932 { 933 return base::to_ullong(); 934 } 935 936 template <size_t _Size> 937 template <class _CharT, class _Traits, class _Allocator> 938 basic_string<_CharT, _Traits, _Allocator> 939 bitset<_Size>::to_string(_CharT __zero, _CharT __one) const 940 { 941 basic_string<_CharT, _Traits, _Allocator> __r(_Size, __zero); 942 for (size_t __i = 0; __i < _Size; ++__i) 943 { 944 if ((*this)[__i]) 945 __r[_Size - 1 - __i] = __one; 946 } 947 return __r; 948 } 949 950 template <size_t _Size> 951 template <class _CharT, class _Traits> 952 inline 953 basic_string<_CharT, _Traits, allocator<_CharT> > 954 bitset<_Size>::to_string(_CharT __zero, _CharT __one) const 955 { 956 return to_string<_CharT, _Traits, allocator<_CharT> >(__zero, __one); 957 } 958 959 template <size_t _Size> 960 template <class _CharT> 961 inline 962 basic_string<_CharT, char_traits<_CharT>, allocator<_CharT> > 963 bitset<_Size>::to_string(_CharT __zero, _CharT __one) const 964 { 965 return to_string<_CharT, char_traits<_CharT>, allocator<_CharT> >(__zero, __one); 966 } 967 968 template <size_t _Size> 969 inline 970 basic_string<char, char_traits<char>, allocator<char> > 971 bitset<_Size>::to_string(char __zero, char __one) const 972 { 973 return to_string<char, char_traits<char>, allocator<char> >(__zero, __one); 974 } 975 976 template <size_t _Size> 977 inline 978 size_t 979 bitset<_Size>::count() const _NOEXCEPT 980 { 981 return static_cast<size_t>(_VSTD::count(base::__make_iter(0), base::__make_iter(_Size), true)); 982 } 983 984 template <size_t _Size> 985 inline 986 bool 987 bitset<_Size>::operator==(const bitset& __rhs) const _NOEXCEPT 988 { 989 return _VSTD::equal(base::__make_iter(0), base::__make_iter(_Size), __rhs.__make_iter(0)); 990 } 991 992 template <size_t _Size> 993 inline 994 bool 995 bitset<_Size>::operator!=(const bitset& __rhs) const _NOEXCEPT 996 { 997 return !(*this == __rhs); 998 } 999 1000 template <size_t _Size> 1001 bool 1002 bitset<_Size>::test(size_t __pos) const 1003 { 1004 if (__pos >= _Size) 1005 __throw_out_of_range("bitset test argument out of range"); 1006 1007 return (*this)[__pos]; 1008 } 1009 1010 template <size_t _Size> 1011 inline 1012 bool 1013 bitset<_Size>::all() const _NOEXCEPT 1014 { 1015 return base::all(); 1016 } 1017 1018 template <size_t _Size> 1019 inline 1020 bool 1021 bitset<_Size>::any() const _NOEXCEPT 1022 { 1023 return base::any(); 1024 } 1025 1026 template <size_t _Size> 1027 inline 1028 bitset<_Size> 1029 bitset<_Size>::operator<<(size_t __pos) const _NOEXCEPT 1030 { 1031 bitset __r = *this; 1032 __r <<= __pos; 1033 return __r; 1034 } 1035 1036 template <size_t _Size> 1037 inline 1038 bitset<_Size> 1039 bitset<_Size>::operator>>(size_t __pos) const _NOEXCEPT 1040 { 1041 bitset __r = *this; 1042 __r >>= __pos; 1043 return __r; 1044 } 1045 1046 template <size_t _Size> 1047 inline _LIBCPP_INLINE_VISIBILITY 1048 bitset<_Size> 1049 operator&(const bitset<_Size>& __x, const bitset<_Size>& __y) _NOEXCEPT 1050 { 1051 bitset<_Size> __r = __x; 1052 __r &= __y; 1053 return __r; 1054 } 1055 1056 template <size_t _Size> 1057 inline _LIBCPP_INLINE_VISIBILITY 1058 bitset<_Size> 1059 operator|(const bitset<_Size>& __x, const bitset<_Size>& __y) _NOEXCEPT 1060 { 1061 bitset<_Size> __r = __x; 1062 __r |= __y; 1063 return __r; 1064 } 1065 1066 template <size_t _Size> 1067 inline _LIBCPP_INLINE_VISIBILITY 1068 bitset<_Size> 1069 operator^(const bitset<_Size>& __x, const bitset<_Size>& __y) _NOEXCEPT 1070 { 1071 bitset<_Size> __r = __x; 1072 __r ^= __y; 1073 return __r; 1074 } 1075 1076 template <size_t _Size> 1077 struct _LIBCPP_TEMPLATE_VIS hash<bitset<_Size> > 1078 : public unary_function<bitset<_Size>, size_t> 1079 { 1080 _LIBCPP_INLINE_VISIBILITY 1081 size_t operator()(const bitset<_Size>& __bs) const _NOEXCEPT 1082 {return __bs.__hash_code();} 1083 }; 1084 1085 template <class _CharT, class _Traits, size_t _Size> 1086 basic_istream<_CharT, _Traits>& 1087 operator>>(basic_istream<_CharT, _Traits>& __is, bitset<_Size>& __x); 1088 1089 template <class _CharT, class _Traits, size_t _Size> 1090 basic_ostream<_CharT, _Traits>& 1091 operator<<(basic_ostream<_CharT, _Traits>& __os, const bitset<_Size>& __x); 1092 1093 _LIBCPP_END_NAMESPACE_STD 1094 1095 _LIBCPP_POP_MACROS 1096 1097 #endif // _LIBCPP_BITSET 1098
