1// -*- C++ -*- 2//===----------------------------------------------------------------------===// 3// 4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5// See https://llvm.org/LICENSE.txt for license information. 6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7// 8//===----------------------------------------------------------------------===// 9 10#ifndef _LIBCPP_BITSET 11#define _LIBCPP_BITSET 12 13/* 14 bitset synopsis 15 16namespace std 17{ 18 19namespace std { 20 21template <size_t N> 22class bitset 23{ 24public: 25 // bit reference: 26 class reference 27 { 28 friend class bitset; 29 reference() noexcept; 30 public: 31 ~reference() noexcept; 32 reference& operator=(bool x) noexcept; // for b[i] = x; 33 reference& operator=(const reference&) noexcept; // for b[i] = b[j]; 34 bool operator~() const noexcept; // flips the bit 35 operator bool() const noexcept; // for x = b[i]; 36 reference& flip() noexcept; // for b[i].flip(); 37 }; 38 39 // 23.3.5.1 constructors: 40 constexpr bitset() noexcept; 41 constexpr bitset(unsigned long long val) noexcept; 42 template <class charT> 43 explicit bitset(const charT* str, 44 typename basic_string<charT>::size_type n = basic_string<charT>::npos, 45 charT zero = charT('0'), charT one = charT('1')); 46 template<class charT, class traits, class Allocator> 47 explicit bitset(const basic_string<charT,traits,Allocator>& str, 48 typename basic_string<charT,traits,Allocator>::size_type pos = 0, 49 typename basic_string<charT,traits,Allocator>::size_type n = 50 basic_string<charT,traits,Allocator>::npos, 51 charT zero = charT('0'), charT one = charT('1')); 52 53 // 23.3.5.2 bitset operations: 54 bitset& operator&=(const bitset& rhs) noexcept; 55 bitset& operator|=(const bitset& rhs) noexcept; 56 bitset& operator^=(const bitset& rhs) noexcept; 57 bitset& operator<<=(size_t pos) noexcept; 58 bitset& operator>>=(size_t pos) noexcept; 59 bitset& set() noexcept; 60 bitset& set(size_t pos, bool val = true); 61 bitset& reset() noexcept; 62 bitset& reset(size_t pos); 63 bitset operator~() const noexcept; 64 bitset& flip() noexcept; 65 bitset& flip(size_t pos); 66 67 // element access: 68 constexpr bool operator[](size_t pos) const; // for b[i]; 69 reference operator[](size_t pos); // for b[i]; 70 unsigned long to_ulong() const; 71 unsigned long long to_ullong() const; 72 template <class charT, class traits, class Allocator> 73 basic_string<charT, traits, Allocator> to_string(charT zero = charT('0'), charT one = charT('1')) const; 74 template <class charT, class traits> 75 basic_string<charT, traits, allocator<charT> > to_string(charT zero = charT('0'), charT one = charT('1')) const; 76 template <class charT> 77 basic_string<charT, char_traits<charT>, allocator<charT> > to_string(charT zero = charT('0'), charT one = charT('1')) const; 78 basic_string<char, char_traits<char>, allocator<char> > to_string(char zero = '0', char one = '1') const; 79 size_t count() const noexcept; 80 constexpr size_t size() const noexcept; 81 bool operator==(const bitset& rhs) const noexcept; 82 bool operator!=(const bitset& rhs) const noexcept; 83 bool test(size_t pos) const; 84 bool all() const noexcept; 85 bool any() const noexcept; 86 bool none() const noexcept; 87 bitset operator<<(size_t pos) const noexcept; 88 bitset operator>>(size_t pos) const noexcept; 89}; 90 91// 23.3.5.3 bitset operators: 92template <size_t N> 93bitset<N> operator&(const bitset<N>&, const bitset<N>&) noexcept; 94 95template <size_t N> 96bitset<N> operator|(const bitset<N>&, const bitset<N>&) noexcept; 97 98template <size_t N> 99bitset<N> operator^(const bitset<N>&, const bitset<N>&) noexcept; 100 101template <class charT, class traits, size_t N> 102basic_istream<charT, traits>& 103operator>>(basic_istream<charT, traits>& is, bitset<N>& x); 104 105template <class charT, class traits, size_t N> 106basic_ostream<charT, traits>& 107operator<<(basic_ostream<charT, traits>& os, const bitset<N>& x); 108 109template <size_t N> struct hash<std::bitset<N>>; 110 111} // std 112 113*/ 114 115#include <__bit_reference> 116#include <__config> 117#include <__functional_base> 118#include <climits> 119#include <cstddef> 120#include <iosfwd> 121#include <stdexcept> 122#include <string> 123#include <version> 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 135template <size_t _N_words, size_t _Size> 136class __bitset; 137 138template <size_t _N_words, size_t _Size> 139struct __has_storage_type<__bitset<_N_words, _Size> > 140{ 141 static const bool value = true; 142}; 143 144template <size_t _N_words, size_t _Size> 145class __bitset 146{ 147public: 148 typedef ptrdiff_t difference_type; 149 typedef size_t size_type; 150 typedef size_type __storage_type; 151protected: 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; 201private: 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 218template <size_t _N_words, size_t _Size> 219inline 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 233template <size_t _N_words, size_t _Size> 234void 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 size_t __sz = _Size; 239 for (size_t __i = 0; __i < sizeof(__t)/sizeof(__t[0]); ++__i, __v >>= __bits_per_word, __sz -= __bits_per_word ) 240 if ( __sz < __bits_per_word) 241 __t[__i] = static_cast<__storage_type>(__v) & ( 1ULL << __sz ) - 1; 242 else 243 __t[__i] = static_cast<__storage_type>(__v); 244 245 _VSTD::copy(__t, __t + sizeof(__t)/sizeof(__t[0]), __first_); 246 _VSTD::fill(__first_ + sizeof(__t)/sizeof(__t[0]), __first_ + sizeof(__first_)/sizeof(__first_[0]), 247 __storage_type(0)); 248} 249 250template <size_t _N_words, size_t _Size> 251inline _LIBCPP_INLINE_VISIBILITY 252void 253__bitset<_N_words, _Size>::__init(unsigned long long __v, true_type) _NOEXCEPT 254{ 255 __first_[0] = __v; 256 if (_Size < __bits_per_word) 257 __first_[0] &= ( 1ULL << _Size ) - 1; 258 259 _VSTD::fill(__first_ + 1, __first_ + sizeof(__first_)/sizeof(__first_[0]), __storage_type(0)); 260} 261 262#endif // _LIBCPP_CXX03_LANG 263 264template <size_t _N_words, size_t _Size> 265inline 266_LIBCPP_CONSTEXPR 267__bitset<_N_words, _Size>::__bitset(unsigned long long __v) _NOEXCEPT 268#ifndef _LIBCPP_CXX03_LANG 269#if __SIZEOF_SIZE_T__ == 8 270 : __first_{__v} 271#elif __SIZEOF_SIZE_T__ == 4 272 : __first_{static_cast<__storage_type>(__v), 273 _Size >= 2 * __bits_per_word ? static_cast<__storage_type>(__v >> __bits_per_word) 274 : static_cast<__storage_type>((__v >> __bits_per_word) & (__storage_type(1) << (_Size - __bits_per_word)) - 1)} 275#else 276#error This constructor has not been ported to this platform 277#endif 278#endif 279{ 280#ifdef _LIBCPP_CXX03_LANG 281 __init(__v, integral_constant<bool, sizeof(unsigned long long) == sizeof(__storage_type)>()); 282#endif 283} 284 285template <size_t _N_words, size_t _Size> 286inline 287void 288__bitset<_N_words, _Size>::operator&=(const __bitset& __v) _NOEXCEPT 289{ 290 for (size_type __i = 0; __i < _N_words; ++__i) 291 __first_[__i] &= __v.__first_[__i]; 292} 293 294template <size_t _N_words, size_t _Size> 295inline 296void 297__bitset<_N_words, _Size>::operator|=(const __bitset& __v) _NOEXCEPT 298{ 299 for (size_type __i = 0; __i < _N_words; ++__i) 300 __first_[__i] |= __v.__first_[__i]; 301} 302 303template <size_t _N_words, size_t _Size> 304inline 305void 306__bitset<_N_words, _Size>::operator^=(const __bitset& __v) _NOEXCEPT 307{ 308 for (size_type __i = 0; __i < _N_words; ++__i) 309 __first_[__i] ^= __v.__first_[__i]; 310} 311 312template <size_t _N_words, size_t _Size> 313void 314__bitset<_N_words, _Size>::flip() _NOEXCEPT 315{ 316 // do middle whole words 317 size_type __n = _Size; 318 __storage_pointer __p = __first_; 319 for (; __n >= __bits_per_word; ++__p, __n -= __bits_per_word) 320 *__p = ~*__p; 321 // do last partial word 322 if (__n > 0) 323 { 324 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n); 325 __storage_type __b = *__p & __m; 326 *__p &= ~__m; 327 *__p |= ~__b & __m; 328 } 329} 330 331template <size_t _N_words, size_t _Size> 332unsigned long 333__bitset<_N_words, _Size>::to_ulong(false_type) const 334{ 335 const_iterator __e = __make_iter(_Size); 336 const_iterator __i = _VSTD::find(__make_iter(sizeof(unsigned long) * CHAR_BIT), __e, true); 337 if (__i != __e) 338 __throw_overflow_error("bitset to_ulong overflow error"); 339 340 return __first_[0]; 341} 342 343template <size_t _N_words, size_t _Size> 344inline 345unsigned long 346__bitset<_N_words, _Size>::to_ulong(true_type) const 347{ 348 return __first_[0]; 349} 350 351template <size_t _N_words, size_t _Size> 352unsigned long long 353__bitset<_N_words, _Size>::to_ullong(false_type) const 354{ 355 const_iterator __e = __make_iter(_Size); 356 const_iterator __i = _VSTD::find(__make_iter(sizeof(unsigned long long) * CHAR_BIT), __e, true); 357 if (__i != __e) 358 __throw_overflow_error("bitset to_ullong overflow error"); 359 360 return to_ullong(true_type()); 361} 362 363template <size_t _N_words, size_t _Size> 364inline 365unsigned long long 366__bitset<_N_words, _Size>::to_ullong(true_type) const 367{ 368 return to_ullong(true_type(), integral_constant<bool, sizeof(__storage_type) < sizeof(unsigned long long)>()); 369} 370 371template <size_t _N_words, size_t _Size> 372inline 373unsigned long long 374__bitset<_N_words, _Size>::to_ullong(true_type, false_type) const 375{ 376 return __first_[0]; 377} 378 379template <size_t _N_words, size_t _Size> 380unsigned long long 381__bitset<_N_words, _Size>::to_ullong(true_type, true_type) const 382{ 383 unsigned long long __r = __first_[0]; 384 for (size_t __i = 1; __i < sizeof(unsigned long long) / sizeof(__storage_type); ++__i) 385 __r |= static_cast<unsigned long long>(__first_[__i]) << (sizeof(__storage_type) * CHAR_BIT); 386 return __r; 387} 388 389template <size_t _N_words, size_t _Size> 390bool 391__bitset<_N_words, _Size>::all() const _NOEXCEPT 392{ 393 // do middle whole words 394 size_type __n = _Size; 395 __const_storage_pointer __p = __first_; 396 for (; __n >= __bits_per_word; ++__p, __n -= __bits_per_word) 397 if (~*__p) 398 return false; 399 // do last partial word 400 if (__n > 0) 401 { 402 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n); 403 if (~*__p & __m) 404 return false; 405 } 406 return true; 407} 408 409template <size_t _N_words, size_t _Size> 410bool 411__bitset<_N_words, _Size>::any() const _NOEXCEPT 412{ 413 // do middle whole words 414 size_type __n = _Size; 415 __const_storage_pointer __p = __first_; 416 for (; __n >= __bits_per_word; ++__p, __n -= __bits_per_word) 417 if (*__p) 418 return true; 419 // do last partial word 420 if (__n > 0) 421 { 422 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n); 423 if (*__p & __m) 424 return true; 425 } 426 return false; 427} 428 429template <size_t _N_words, size_t _Size> 430inline 431size_t 432__bitset<_N_words, _Size>::__hash_code() const _NOEXCEPT 433{ 434 size_t __h = 0; 435 for (size_type __i = 0; __i < _N_words; ++__i) 436 __h ^= __first_[__i]; 437 return __h; 438} 439 440template <size_t _Size> 441class __bitset<1, _Size> 442{ 443public: 444 typedef ptrdiff_t difference_type; 445 typedef size_t size_type; 446 typedef size_type __storage_type; 447protected: 448 typedef __bitset __self; 449 typedef __storage_type* __storage_pointer; 450 typedef const __storage_type* __const_storage_pointer; 451 static const unsigned __bits_per_word = static_cast<unsigned>(sizeof(__storage_type) * CHAR_BIT); 452 453 friend class __bit_reference<__bitset>; 454 friend class __bit_const_reference<__bitset>; 455 friend class __bit_iterator<__bitset, false>; 456 friend class __bit_iterator<__bitset, true>; 457 friend struct __bit_array<__bitset>; 458 459 __storage_type __first_; 460 461 typedef __bit_reference<__bitset> reference; 462 typedef __bit_const_reference<__bitset> const_reference; 463 typedef __bit_iterator<__bitset, false> iterator; 464 typedef __bit_iterator<__bitset, true> const_iterator; 465 466 _LIBCPP_INLINE_VISIBILITY 467 _LIBCPP_CONSTEXPR __bitset() _NOEXCEPT; 468 _LIBCPP_INLINE_VISIBILITY 469 explicit _LIBCPP_CONSTEXPR __bitset(unsigned long long __v) _NOEXCEPT; 470 471 _LIBCPP_INLINE_VISIBILITY reference __make_ref(size_t __pos) _NOEXCEPT 472 {return reference(&__first_, __storage_type(1) << __pos);} 473 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR const_reference __make_ref(size_t __pos) const _NOEXCEPT 474 {return const_reference(&__first_, __storage_type(1) << __pos);} 475 _LIBCPP_INLINE_VISIBILITY iterator __make_iter(size_t __pos) _NOEXCEPT 476 {return iterator(&__first_ + __pos / __bits_per_word, __pos % __bits_per_word);} 477 _LIBCPP_INLINE_VISIBILITY const_iterator __make_iter(size_t __pos) const _NOEXCEPT 478 {return const_iterator(&__first_ + __pos / __bits_per_word, __pos % __bits_per_word);} 479 480 _LIBCPP_INLINE_VISIBILITY 481 void operator&=(const __bitset& __v) _NOEXCEPT; 482 _LIBCPP_INLINE_VISIBILITY 483 void operator|=(const __bitset& __v) _NOEXCEPT; 484 _LIBCPP_INLINE_VISIBILITY 485 void operator^=(const __bitset& __v) _NOEXCEPT; 486 487 _LIBCPP_INLINE_VISIBILITY 488 void flip() _NOEXCEPT; 489 490 _LIBCPP_INLINE_VISIBILITY 491 unsigned long to_ulong() const; 492 _LIBCPP_INLINE_VISIBILITY 493 unsigned long long to_ullong() const; 494 495 _LIBCPP_INLINE_VISIBILITY 496 bool all() const _NOEXCEPT; 497 _LIBCPP_INLINE_VISIBILITY 498 bool any() const _NOEXCEPT; 499 500 _LIBCPP_INLINE_VISIBILITY 501 size_t __hash_code() const _NOEXCEPT; 502}; 503 504template <size_t _Size> 505inline 506_LIBCPP_CONSTEXPR 507__bitset<1, _Size>::__bitset() _NOEXCEPT 508 : __first_(0) 509{ 510} 511 512template <size_t _Size> 513inline 514_LIBCPP_CONSTEXPR 515__bitset<1, _Size>::__bitset(unsigned long long __v) _NOEXCEPT 516 : __first_( 517 _Size == __bits_per_word ? static_cast<__storage_type>(__v) 518 : static_cast<__storage_type>(__v) & ((__storage_type(1) << _Size) - 1) 519 ) 520{ 521} 522 523template <size_t _Size> 524inline 525void 526__bitset<1, _Size>::operator&=(const __bitset& __v) _NOEXCEPT 527{ 528 __first_ &= __v.__first_; 529} 530 531template <size_t _Size> 532inline 533void 534__bitset<1, _Size>::operator|=(const __bitset& __v) _NOEXCEPT 535{ 536 __first_ |= __v.__first_; 537} 538 539template <size_t _Size> 540inline 541void 542__bitset<1, _Size>::operator^=(const __bitset& __v) _NOEXCEPT 543{ 544 __first_ ^= __v.__first_; 545} 546 547template <size_t _Size> 548inline 549void 550__bitset<1, _Size>::flip() _NOEXCEPT 551{ 552 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - _Size); 553 __first_ = ~__first_; 554 __first_ &= __m; 555} 556 557template <size_t _Size> 558inline 559unsigned long 560__bitset<1, _Size>::to_ulong() const 561{ 562 return __first_; 563} 564 565template <size_t _Size> 566inline 567unsigned long long 568__bitset<1, _Size>::to_ullong() const 569{ 570 return __first_; 571} 572 573template <size_t _Size> 574inline 575bool 576__bitset<1, _Size>::all() const _NOEXCEPT 577{ 578 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - _Size); 579 return !(~__first_ & __m); 580} 581 582template <size_t _Size> 583inline 584bool 585__bitset<1, _Size>::any() const _NOEXCEPT 586{ 587 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - _Size); 588 return __first_ & __m; 589} 590 591template <size_t _Size> 592inline 593size_t 594__bitset<1, _Size>::__hash_code() const _NOEXCEPT 595{ 596 return __first_; 597} 598 599template <> 600class __bitset<0, 0> 601{ 602public: 603 typedef ptrdiff_t difference_type; 604 typedef size_t size_type; 605 typedef size_type __storage_type; 606protected: 607 typedef __bitset __self; 608 typedef __storage_type* __storage_pointer; 609 typedef const __storage_type* __const_storage_pointer; 610 static const unsigned __bits_per_word = static_cast<unsigned>(sizeof(__storage_type) * CHAR_BIT); 611 612 friend class __bit_reference<__bitset>; 613 friend class __bit_const_reference<__bitset>; 614 friend class __bit_iterator<__bitset, false>; 615 friend class __bit_iterator<__bitset, true>; 616 friend struct __bit_array<__bitset>; 617 618 typedef __bit_reference<__bitset> reference; 619 typedef __bit_const_reference<__bitset> const_reference; 620 typedef __bit_iterator<__bitset, false> iterator; 621 typedef __bit_iterator<__bitset, true> const_iterator; 622 623 _LIBCPP_INLINE_VISIBILITY 624 _LIBCPP_CONSTEXPR __bitset() _NOEXCEPT; 625 _LIBCPP_INLINE_VISIBILITY 626 explicit _LIBCPP_CONSTEXPR __bitset(unsigned long long) _NOEXCEPT; 627 628 _LIBCPP_INLINE_VISIBILITY reference __make_ref(size_t) _NOEXCEPT 629 {return reference(nullptr, 1);} 630 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR const_reference __make_ref(size_t) const _NOEXCEPT 631 {return const_reference(nullptr, 1);} 632 _LIBCPP_INLINE_VISIBILITY iterator __make_iter(size_t) _NOEXCEPT 633 {return iterator(nullptr, 0);} 634 _LIBCPP_INLINE_VISIBILITY const_iterator __make_iter(size_t) const _NOEXCEPT 635 {return const_iterator(nullptr, 0);} 636 637 _LIBCPP_INLINE_VISIBILITY void operator&=(const __bitset&) _NOEXCEPT {} 638 _LIBCPP_INLINE_VISIBILITY void operator|=(const __bitset&) _NOEXCEPT {} 639 _LIBCPP_INLINE_VISIBILITY void operator^=(const __bitset&) _NOEXCEPT {} 640 641 _LIBCPP_INLINE_VISIBILITY void flip() _NOEXCEPT {} 642 643 _LIBCPP_INLINE_VISIBILITY unsigned long to_ulong() const {return 0;} 644 _LIBCPP_INLINE_VISIBILITY unsigned long long to_ullong() const {return 0;} 645 646 _LIBCPP_INLINE_VISIBILITY bool all() const _NOEXCEPT {return true;} 647 _LIBCPP_INLINE_VISIBILITY bool any() const _NOEXCEPT {return false;} 648 649 _LIBCPP_INLINE_VISIBILITY size_t __hash_code() const _NOEXCEPT {return 0;} 650}; 651 652inline 653_LIBCPP_CONSTEXPR 654__bitset<0, 0>::__bitset() _NOEXCEPT 655{ 656} 657 658inline 659_LIBCPP_CONSTEXPR 660__bitset<0, 0>::__bitset(unsigned long long) _NOEXCEPT 661{ 662} 663 664template <size_t _Size> class _LIBCPP_TEMPLATE_VIS bitset; 665template <size_t _Size> struct hash<bitset<_Size> >; 666 667template <size_t _Size> 668class _LIBCPP_TEMPLATE_VIS bitset 669 : private __bitset<_Size == 0 ? 0 : (_Size - 1) / (sizeof(size_t) * CHAR_BIT) + 1, _Size> 670{ 671public: 672 static const unsigned __n_words = _Size == 0 ? 0 : (_Size - 1) / (sizeof(size_t) * CHAR_BIT) + 1; 673 typedef __bitset<__n_words, _Size> base; 674 675public: 676 typedef typename base::reference reference; 677 typedef typename base::const_reference const_reference; 678 679 // 23.3.5.1 constructors: 680 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR bitset() _NOEXCEPT {} 681 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 682 bitset(unsigned long long __v) _NOEXCEPT : base(__v) {} 683 template<class _CharT, class = __enable_if_t<_IsCharLikeType<_CharT>::value> > 684 explicit bitset(const _CharT* __str, 685 typename basic_string<_CharT>::size_type __n = basic_string<_CharT>::npos, 686 _CharT __zero = _CharT('0'), _CharT __one = _CharT('1')); 687 template<class _CharT, class _Traits, class _Allocator> 688 explicit bitset(const basic_string<_CharT,_Traits,_Allocator>& __str, 689 typename basic_string<_CharT,_Traits,_Allocator>::size_type __pos = 0, 690 typename basic_string<_CharT,_Traits,_Allocator>::size_type __n = 691 (basic_string<_CharT,_Traits,_Allocator>::npos), 692 _CharT __zero = _CharT('0'), _CharT __one = _CharT('1')); 693 694 // 23.3.5.2 bitset operations: 695 _LIBCPP_INLINE_VISIBILITY 696 bitset& operator&=(const bitset& __rhs) _NOEXCEPT; 697 _LIBCPP_INLINE_VISIBILITY 698 bitset& operator|=(const bitset& __rhs) _NOEXCEPT; 699 _LIBCPP_INLINE_VISIBILITY 700 bitset& operator^=(const bitset& __rhs) _NOEXCEPT; 701 bitset& operator<<=(size_t __pos) _NOEXCEPT; 702 bitset& operator>>=(size_t __pos) _NOEXCEPT; 703 _LIBCPP_INLINE_VISIBILITY 704 bitset& set() _NOEXCEPT; 705 bitset& set(size_t __pos, bool __val = true); 706 _LIBCPP_INLINE_VISIBILITY 707 bitset& reset() _NOEXCEPT; 708 bitset& reset(size_t __pos); 709 _LIBCPP_INLINE_VISIBILITY 710 bitset operator~() const _NOEXCEPT; 711 _LIBCPP_INLINE_VISIBILITY 712 bitset& flip() _NOEXCEPT; 713 bitset& flip(size_t __pos); 714 715 // element access: 716 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 717 const_reference operator[](size_t __p) const {return base::__make_ref(__p);} 718 _LIBCPP_INLINE_VISIBILITY reference operator[](size_t __p) {return base::__make_ref(__p);} 719 _LIBCPP_INLINE_VISIBILITY 720 unsigned long to_ulong() const; 721 _LIBCPP_INLINE_VISIBILITY 722 unsigned long long to_ullong() const; 723 template <class _CharT, class _Traits, class _Allocator> 724 basic_string<_CharT, _Traits, _Allocator> to_string(_CharT __zero = _CharT('0'), 725 _CharT __one = _CharT('1')) const; 726 template <class _CharT, class _Traits> 727 _LIBCPP_INLINE_VISIBILITY 728 basic_string<_CharT, _Traits, allocator<_CharT> > to_string(_CharT __zero = _CharT('0'), 729 _CharT __one = _CharT('1')) const; 730 template <class _CharT> 731 _LIBCPP_INLINE_VISIBILITY 732 basic_string<_CharT, char_traits<_CharT>, allocator<_CharT> > to_string(_CharT __zero = _CharT('0'), 733 _CharT __one = _CharT('1')) const; 734 _LIBCPP_INLINE_VISIBILITY 735 basic_string<char, char_traits<char>, allocator<char> > to_string(char __zero = '0', 736 char __one = '1') const; 737 _LIBCPP_INLINE_VISIBILITY 738 size_t count() const _NOEXCEPT; 739 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR size_t size() const _NOEXCEPT {return _Size;} 740 _LIBCPP_INLINE_VISIBILITY 741 bool operator==(const bitset& __rhs) const _NOEXCEPT; 742 _LIBCPP_INLINE_VISIBILITY 743 bool operator!=(const bitset& __rhs) const _NOEXCEPT; 744 bool test(size_t __pos) const; 745 _LIBCPP_INLINE_VISIBILITY 746 bool all() const _NOEXCEPT; 747 _LIBCPP_INLINE_VISIBILITY 748 bool any() const _NOEXCEPT; 749 _LIBCPP_INLINE_VISIBILITY bool none() const _NOEXCEPT {return !any();} 750 _LIBCPP_INLINE_VISIBILITY 751 bitset operator<<(size_t __pos) const _NOEXCEPT; 752 _LIBCPP_INLINE_VISIBILITY 753 bitset operator>>(size_t __pos) const _NOEXCEPT; 754 755private: 756 757 _LIBCPP_INLINE_VISIBILITY 758 size_t __hash_code() const _NOEXCEPT {return base::__hash_code();} 759 760 friend struct hash<bitset>; 761}; 762 763template <size_t _Size> 764template<class _CharT, class> 765bitset<_Size>::bitset(const _CharT* __str, 766 typename basic_string<_CharT>::size_type __n, 767 _CharT __zero, _CharT __one) 768{ 769 size_t __rlen = _VSTD::min(__n, char_traits<_CharT>::length(__str)); 770 for (size_t __i = 0; __i < __rlen; ++__i) 771 if (__str[__i] != __zero && __str[__i] != __one) 772 __throw_invalid_argument("bitset string ctor has invalid argument"); 773 774 size_t _Mp = _VSTD::min(__rlen, _Size); 775 size_t __i = 0; 776 for (; __i < _Mp; ++__i) 777 { 778 _CharT __c = __str[_Mp - 1 - __i]; 779 (*this)[__i] = (__c == __one); 780 } 781 _VSTD::fill(base::__make_iter(__i), base::__make_iter(_Size), false); 782} 783 784template <size_t _Size> 785template<class _CharT, class _Traits, class _Allocator> 786bitset<_Size>::bitset(const basic_string<_CharT,_Traits,_Allocator>& __str, 787 typename basic_string<_CharT,_Traits,_Allocator>::size_type __pos, 788 typename basic_string<_CharT,_Traits,_Allocator>::size_type __n, 789 _CharT __zero, _CharT __one) 790{ 791 if (__pos > __str.size()) 792 __throw_out_of_range("bitset string pos out of range"); 793 794 size_t __rlen = _VSTD::min(__n, __str.size() - __pos); 795 for (size_t __i = __pos; __i < __pos + __rlen; ++__i) 796 if (!_Traits::eq(__str[__i], __zero) && !_Traits::eq(__str[__i], __one)) 797 __throw_invalid_argument("bitset string ctor has invalid argument"); 798 799 size_t _Mp = _VSTD::min(__rlen, _Size); 800 size_t __i = 0; 801 for (; __i < _Mp; ++__i) 802 { 803 _CharT __c = __str[__pos + _Mp - 1 - __i]; 804 (*this)[__i] = _Traits::eq(__c, __one); 805 } 806 _VSTD::fill(base::__make_iter(__i), base::__make_iter(_Size), false); 807} 808 809template <size_t _Size> 810inline 811bitset<_Size>& 812bitset<_Size>::operator&=(const bitset& __rhs) _NOEXCEPT 813{ 814 base::operator&=(__rhs); 815 return *this; 816} 817 818template <size_t _Size> 819inline 820bitset<_Size>& 821bitset<_Size>::operator|=(const bitset& __rhs) _NOEXCEPT 822{ 823 base::operator|=(__rhs); 824 return *this; 825} 826 827template <size_t _Size> 828inline 829bitset<_Size>& 830bitset<_Size>::operator^=(const bitset& __rhs) _NOEXCEPT 831{ 832 base::operator^=(__rhs); 833 return *this; 834} 835 836template <size_t _Size> 837bitset<_Size>& 838bitset<_Size>::operator<<=(size_t __pos) _NOEXCEPT 839{ 840 __pos = _VSTD::min(__pos, _Size); 841 _VSTD::copy_backward(base::__make_iter(0), base::__make_iter(_Size - __pos), base::__make_iter(_Size)); 842 _VSTD::fill_n(base::__make_iter(0), __pos, false); 843 return *this; 844} 845 846template <size_t _Size> 847bitset<_Size>& 848bitset<_Size>::operator>>=(size_t __pos) _NOEXCEPT 849{ 850 __pos = _VSTD::min(__pos, _Size); 851 _VSTD::copy(base::__make_iter(__pos), base::__make_iter(_Size), base::__make_iter(0)); 852 _VSTD::fill_n(base::__make_iter(_Size - __pos), __pos, false); 853 return *this; 854} 855 856template <size_t _Size> 857inline 858bitset<_Size>& 859bitset<_Size>::set() _NOEXCEPT 860{ 861 _VSTD::fill_n(base::__make_iter(0), _Size, true); 862 return *this; 863} 864 865template <size_t _Size> 866bitset<_Size>& 867bitset<_Size>::set(size_t __pos, bool __val) 868{ 869 if (__pos >= _Size) 870 __throw_out_of_range("bitset set argument out of range"); 871 872 (*this)[__pos] = __val; 873 return *this; 874} 875 876template <size_t _Size> 877inline 878bitset<_Size>& 879bitset<_Size>::reset() _NOEXCEPT 880{ 881 _VSTD::fill_n(base::__make_iter(0), _Size, false); 882 return *this; 883} 884 885template <size_t _Size> 886bitset<_Size>& 887bitset<_Size>::reset(size_t __pos) 888{ 889 if (__pos >= _Size) 890 __throw_out_of_range("bitset reset argument out of range"); 891 892 (*this)[__pos] = false; 893 return *this; 894} 895 896template <size_t _Size> 897inline 898bitset<_Size> 899bitset<_Size>::operator~() const _NOEXCEPT 900{ 901 bitset __x(*this); 902 __x.flip(); 903 return __x; 904} 905 906template <size_t _Size> 907inline 908bitset<_Size>& 909bitset<_Size>::flip() _NOEXCEPT 910{ 911 base::flip(); 912 return *this; 913} 914 915template <size_t _Size> 916bitset<_Size>& 917bitset<_Size>::flip(size_t __pos) 918{ 919 if (__pos >= _Size) 920 __throw_out_of_range("bitset flip argument out of range"); 921 922 reference r = base::__make_ref(__pos); 923 r = ~r; 924 return *this; 925} 926 927template <size_t _Size> 928inline 929unsigned long 930bitset<_Size>::to_ulong() const 931{ 932 return base::to_ulong(); 933} 934 935template <size_t _Size> 936inline 937unsigned long long 938bitset<_Size>::to_ullong() const 939{ 940 return base::to_ullong(); 941} 942 943template <size_t _Size> 944template <class _CharT, class _Traits, class _Allocator> 945basic_string<_CharT, _Traits, _Allocator> 946bitset<_Size>::to_string(_CharT __zero, _CharT __one) const 947{ 948 basic_string<_CharT, _Traits, _Allocator> __r(_Size, __zero); 949 for (size_t __i = 0; __i < _Size; ++__i) 950 { 951 if ((*this)[__i]) 952 __r[_Size - 1 - __i] = __one; 953 } 954 return __r; 955} 956 957template <size_t _Size> 958template <class _CharT, class _Traits> 959inline 960basic_string<_CharT, _Traits, allocator<_CharT> > 961bitset<_Size>::to_string(_CharT __zero, _CharT __one) const 962{ 963 return to_string<_CharT, _Traits, allocator<_CharT> >(__zero, __one); 964} 965 966template <size_t _Size> 967template <class _CharT> 968inline 969basic_string<_CharT, char_traits<_CharT>, allocator<_CharT> > 970bitset<_Size>::to_string(_CharT __zero, _CharT __one) const 971{ 972 return to_string<_CharT, char_traits<_CharT>, allocator<_CharT> >(__zero, __one); 973} 974 975template <size_t _Size> 976inline 977basic_string<char, char_traits<char>, allocator<char> > 978bitset<_Size>::to_string(char __zero, char __one) const 979{ 980 return to_string<char, char_traits<char>, allocator<char> >(__zero, __one); 981} 982 983template <size_t _Size> 984inline 985size_t 986bitset<_Size>::count() const _NOEXCEPT 987{ 988 return static_cast<size_t>(_VSTD::__count_bool_true(base::__make_iter(0), _Size)); 989} 990 991template <size_t _Size> 992inline 993bool 994bitset<_Size>::operator==(const bitset& __rhs) const _NOEXCEPT 995{ 996 return _VSTD::equal(base::__make_iter(0), base::__make_iter(_Size), __rhs.__make_iter(0)); 997} 998 999template <size_t _Size> 1000inline 1001bool 1002bitset<_Size>::operator!=(const bitset& __rhs) const _NOEXCEPT 1003{ 1004 return !(*this == __rhs); 1005} 1006 1007template <size_t _Size> 1008bool 1009bitset<_Size>::test(size_t __pos) const 1010{ 1011 if (__pos >= _Size) 1012 __throw_out_of_range("bitset test argument out of range"); 1013 1014 return (*this)[__pos]; 1015} 1016 1017template <size_t _Size> 1018inline 1019bool 1020bitset<_Size>::all() const _NOEXCEPT 1021{ 1022 return base::all(); 1023} 1024 1025template <size_t _Size> 1026inline 1027bool 1028bitset<_Size>::any() const _NOEXCEPT 1029{ 1030 return base::any(); 1031} 1032 1033template <size_t _Size> 1034inline 1035bitset<_Size> 1036bitset<_Size>::operator<<(size_t __pos) const _NOEXCEPT 1037{ 1038 bitset __r = *this; 1039 __r <<= __pos; 1040 return __r; 1041} 1042 1043template <size_t _Size> 1044inline 1045bitset<_Size> 1046bitset<_Size>::operator>>(size_t __pos) const _NOEXCEPT 1047{ 1048 bitset __r = *this; 1049 __r >>= __pos; 1050 return __r; 1051} 1052 1053template <size_t _Size> 1054inline _LIBCPP_INLINE_VISIBILITY 1055bitset<_Size> 1056operator&(const bitset<_Size>& __x, const bitset<_Size>& __y) _NOEXCEPT 1057{ 1058 bitset<_Size> __r = __x; 1059 __r &= __y; 1060 return __r; 1061} 1062 1063template <size_t _Size> 1064inline _LIBCPP_INLINE_VISIBILITY 1065bitset<_Size> 1066operator|(const bitset<_Size>& __x, const bitset<_Size>& __y) _NOEXCEPT 1067{ 1068 bitset<_Size> __r = __x; 1069 __r |= __y; 1070 return __r; 1071} 1072 1073template <size_t _Size> 1074inline _LIBCPP_INLINE_VISIBILITY 1075bitset<_Size> 1076operator^(const bitset<_Size>& __x, const bitset<_Size>& __y) _NOEXCEPT 1077{ 1078 bitset<_Size> __r = __x; 1079 __r ^= __y; 1080 return __r; 1081} 1082 1083template <size_t _Size> 1084struct _LIBCPP_TEMPLATE_VIS hash<bitset<_Size> > 1085 : public unary_function<bitset<_Size>, size_t> 1086{ 1087 _LIBCPP_INLINE_VISIBILITY 1088 size_t operator()(const bitset<_Size>& __bs) const _NOEXCEPT 1089 {return __bs.__hash_code();} 1090}; 1091 1092template <class _CharT, class _Traits, size_t _Size> 1093basic_istream<_CharT, _Traits>& 1094operator>>(basic_istream<_CharT, _Traits>& __is, bitset<_Size>& __x); 1095 1096template <class _CharT, class _Traits, size_t _Size> 1097basic_ostream<_CharT, _Traits>& 1098operator<<(basic_ostream<_CharT, _Traits>& __os, const bitset<_Size>& __x); 1099 1100_LIBCPP_END_NAMESPACE_STD 1101 1102_LIBCPP_POP_MACROS 1103 1104#endif // _LIBCPP_BITSET 1105