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 <__algorithm/fill.h> 116#include <__assert> // all public C++ headers provide the assertion handler 117#include <__bit_reference> 118#include <__config> 119#include <__functional/hash.h> 120#include <__functional/unary_function.h> 121#include <climits> 122#include <cstddef> 123#include <stdexcept> 124#include <version> 125 126// standard-mandated includes 127#include <iosfwd> 128#include <string> 129 130#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 131# pragma GCC system_header 132#endif 133 134_LIBCPP_PUSH_MACROS 135#include <__undef_macros> 136 137 138_LIBCPP_BEGIN_NAMESPACE_STD 139 140template <size_t _N_words, size_t _Size> 141class __bitset; 142 143template <size_t _N_words, size_t _Size> 144struct __has_storage_type<__bitset<_N_words, _Size> > 145{ 146 static const bool value = true; 147}; 148 149template <size_t _N_words, size_t _Size> 150class __bitset 151{ 152public: 153 typedef ptrdiff_t difference_type; 154 typedef size_t size_type; 155 typedef size_type __storage_type; 156protected: 157 typedef __bitset __self; 158 typedef __storage_type* __storage_pointer; 159 typedef const __storage_type* __const_storage_pointer; 160 static const unsigned __bits_per_word = static_cast<unsigned>(sizeof(__storage_type) * CHAR_BIT); 161 162 friend class __bit_reference<__bitset>; 163 friend class __bit_const_reference<__bitset>; 164 friend class __bit_iterator<__bitset, false>; 165 friend class __bit_iterator<__bitset, true>; 166 friend struct __bit_array<__bitset>; 167 168 __storage_type __first_[_N_words]; 169 170 typedef __bit_reference<__bitset> reference; 171 typedef __bit_const_reference<__bitset> const_reference; 172 typedef __bit_iterator<__bitset, false> iterator; 173 typedef __bit_iterator<__bitset, true> const_iterator; 174 175 _LIBCPP_INLINE_VISIBILITY 176 _LIBCPP_CONSTEXPR __bitset() _NOEXCEPT; 177 _LIBCPP_INLINE_VISIBILITY 178 explicit _LIBCPP_CONSTEXPR __bitset(unsigned long long __v) _NOEXCEPT; 179 180 _LIBCPP_INLINE_VISIBILITY reference __make_ref(size_t __pos) _NOEXCEPT 181 {return reference(__first_ + __pos / __bits_per_word, __storage_type(1) << __pos % __bits_per_word);} 182 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR const_reference __make_ref(size_t __pos) const _NOEXCEPT 183 {return const_reference(__first_ + __pos / __bits_per_word, __storage_type(1) << __pos % __bits_per_word);} 184 _LIBCPP_INLINE_VISIBILITY iterator __make_iter(size_t __pos) _NOEXCEPT 185 {return iterator(__first_ + __pos / __bits_per_word, __pos % __bits_per_word);} 186 _LIBCPP_INLINE_VISIBILITY const_iterator __make_iter(size_t __pos) const _NOEXCEPT 187 {return const_iterator(__first_ + __pos / __bits_per_word, __pos % __bits_per_word);} 188 189 _LIBCPP_INLINE_VISIBILITY 190 void operator&=(const __bitset& __v) _NOEXCEPT; 191 _LIBCPP_INLINE_VISIBILITY 192 void operator|=(const __bitset& __v) _NOEXCEPT; 193 _LIBCPP_INLINE_VISIBILITY 194 void operator^=(const __bitset& __v) _NOEXCEPT; 195 196 void flip() _NOEXCEPT; 197 _LIBCPP_INLINE_VISIBILITY unsigned long to_ulong() const 198 {return to_ulong(integral_constant<bool, _Size < sizeof(unsigned long) * CHAR_BIT>());} 199 _LIBCPP_INLINE_VISIBILITY unsigned long long to_ullong() const 200 {return to_ullong(integral_constant<bool, _Size < sizeof(unsigned long long) * CHAR_BIT>());} 201 202 bool all() const _NOEXCEPT; 203 bool any() const _NOEXCEPT; 204 _LIBCPP_INLINE_VISIBILITY 205 size_t __hash_code() const _NOEXCEPT; 206private: 207#ifdef _LIBCPP_CXX03_LANG 208 void __init(unsigned long long __v, false_type) _NOEXCEPT; 209 _LIBCPP_INLINE_VISIBILITY 210 void __init(unsigned long long __v, true_type) _NOEXCEPT; 211#endif // _LIBCPP_CXX03_LANG 212 unsigned long to_ulong(false_type) const; 213 _LIBCPP_INLINE_VISIBILITY 214 unsigned long to_ulong(true_type) const; 215 unsigned long long to_ullong(false_type) const; 216 _LIBCPP_INLINE_VISIBILITY 217 unsigned long long to_ullong(true_type) const; 218 _LIBCPP_INLINE_VISIBILITY 219 unsigned long long to_ullong(true_type, false_type) const; 220 unsigned long long to_ullong(true_type, true_type) const; 221}; 222 223template <size_t _N_words, size_t _Size> 224inline 225_LIBCPP_CONSTEXPR 226__bitset<_N_words, _Size>::__bitset() _NOEXCEPT 227#ifndef _LIBCPP_CXX03_LANG 228 : __first_{0} 229#endif 230{ 231#ifdef _LIBCPP_CXX03_LANG 232 _VSTD::fill_n(__first_, _N_words, __storage_type(0)); 233#endif 234} 235 236#ifdef _LIBCPP_CXX03_LANG 237 238template <size_t _N_words, size_t _Size> 239void 240__bitset<_N_words, _Size>::__init(unsigned long long __v, false_type) _NOEXCEPT 241{ 242 __storage_type __t[sizeof(unsigned long long) / sizeof(__storage_type)]; 243 size_t __sz = _Size; 244 for (size_t __i = 0; __i < sizeof(__t)/sizeof(__t[0]); ++__i, __v >>= __bits_per_word, __sz -= __bits_per_word ) 245 if ( __sz < __bits_per_word) 246 __t[__i] = static_cast<__storage_type>(__v) & ( 1ULL << __sz ) - 1; 247 else 248 __t[__i] = static_cast<__storage_type>(__v); 249 250 _VSTD::copy(__t, __t + sizeof(__t)/sizeof(__t[0]), __first_); 251 _VSTD::fill(__first_ + sizeof(__t)/sizeof(__t[0]), __first_ + sizeof(__first_)/sizeof(__first_[0]), 252 __storage_type(0)); 253} 254 255template <size_t _N_words, size_t _Size> 256inline _LIBCPP_INLINE_VISIBILITY 257void 258__bitset<_N_words, _Size>::__init(unsigned long long __v, true_type) _NOEXCEPT 259{ 260 __first_[0] = __v; 261 if (_Size < __bits_per_word) 262 __first_[0] &= ( 1ULL << _Size ) - 1; 263 264 _VSTD::fill(__first_ + 1, __first_ + sizeof(__first_)/sizeof(__first_[0]), __storage_type(0)); 265} 266 267#endif // _LIBCPP_CXX03_LANG 268 269template <size_t _N_words, size_t _Size> 270inline 271_LIBCPP_CONSTEXPR 272__bitset<_N_words, _Size>::__bitset(unsigned long long __v) _NOEXCEPT 273#ifndef _LIBCPP_CXX03_LANG 274#if __SIZEOF_SIZE_T__ == 8 275 : __first_{__v} 276#elif __SIZEOF_SIZE_T__ == 4 277 : __first_{static_cast<__storage_type>(__v), 278 _Size >= 2 * __bits_per_word ? static_cast<__storage_type>(__v >> __bits_per_word) 279 : static_cast<__storage_type>((__v >> __bits_per_word) & (__storage_type(1) << (_Size - __bits_per_word)) - 1)} 280#else 281#error This constructor has not been ported to this platform 282#endif 283#endif 284{ 285#ifdef _LIBCPP_CXX03_LANG 286 __init(__v, integral_constant<bool, sizeof(unsigned long long) == sizeof(__storage_type)>()); 287#endif 288} 289 290template <size_t _N_words, size_t _Size> 291inline 292void 293__bitset<_N_words, _Size>::operator&=(const __bitset& __v) _NOEXCEPT 294{ 295 for (size_type __i = 0; __i < _N_words; ++__i) 296 __first_[__i] &= __v.__first_[__i]; 297} 298 299template <size_t _N_words, size_t _Size> 300inline 301void 302__bitset<_N_words, _Size>::operator|=(const __bitset& __v) _NOEXCEPT 303{ 304 for (size_type __i = 0; __i < _N_words; ++__i) 305 __first_[__i] |= __v.__first_[__i]; 306} 307 308template <size_t _N_words, size_t _Size> 309inline 310void 311__bitset<_N_words, _Size>::operator^=(const __bitset& __v) _NOEXCEPT 312{ 313 for (size_type __i = 0; __i < _N_words; ++__i) 314 __first_[__i] ^= __v.__first_[__i]; 315} 316 317template <size_t _N_words, size_t _Size> 318void 319__bitset<_N_words, _Size>::flip() _NOEXCEPT 320{ 321 // do middle whole words 322 size_type __n = _Size; 323 __storage_pointer __p = __first_; 324 for (; __n >= __bits_per_word; ++__p, __n -= __bits_per_word) 325 *__p = ~*__p; 326 // do last partial word 327 if (__n > 0) 328 { 329 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n); 330 __storage_type __b = *__p & __m; 331 *__p &= ~__m; 332 *__p |= ~__b & __m; 333 } 334} 335 336template <size_t _N_words, size_t _Size> 337unsigned long 338__bitset<_N_words, _Size>::to_ulong(false_type) const 339{ 340 const_iterator __e = __make_iter(_Size); 341 const_iterator __i = _VSTD::find(__make_iter(sizeof(unsigned long) * CHAR_BIT), __e, true); 342 if (__i != __e) 343 __throw_overflow_error("bitset to_ulong overflow error"); 344 345 return __first_[0]; 346} 347 348template <size_t _N_words, size_t _Size> 349inline 350unsigned long 351__bitset<_N_words, _Size>::to_ulong(true_type) const 352{ 353 return __first_[0]; 354} 355 356template <size_t _N_words, size_t _Size> 357unsigned long long 358__bitset<_N_words, _Size>::to_ullong(false_type) const 359{ 360 const_iterator __e = __make_iter(_Size); 361 const_iterator __i = _VSTD::find(__make_iter(sizeof(unsigned long long) * CHAR_BIT), __e, true); 362 if (__i != __e) 363 __throw_overflow_error("bitset to_ullong overflow error"); 364 365 return to_ullong(true_type()); 366} 367 368template <size_t _N_words, size_t _Size> 369inline 370unsigned long long 371__bitset<_N_words, _Size>::to_ullong(true_type) const 372{ 373 return to_ullong(true_type(), integral_constant<bool, sizeof(__storage_type) < sizeof(unsigned long long)>()); 374} 375 376template <size_t _N_words, size_t _Size> 377inline 378unsigned long long 379__bitset<_N_words, _Size>::to_ullong(true_type, false_type) const 380{ 381 return __first_[0]; 382} 383 384template <size_t _N_words, size_t _Size> 385unsigned long long 386__bitset<_N_words, _Size>::to_ullong(true_type, true_type) const 387{ 388 unsigned long long __r = __first_[0]; 389 for (size_t __i = 1; __i < sizeof(unsigned long long) / sizeof(__storage_type); ++__i) 390 __r |= static_cast<unsigned long long>(__first_[__i]) << (sizeof(__storage_type) * CHAR_BIT); 391 return __r; 392} 393 394template <size_t _N_words, size_t _Size> 395bool 396__bitset<_N_words, _Size>::all() const _NOEXCEPT 397{ 398 // do middle whole words 399 size_type __n = _Size; 400 __const_storage_pointer __p = __first_; 401 for (; __n >= __bits_per_word; ++__p, __n -= __bits_per_word) 402 if (~*__p) 403 return false; 404 // do last partial word 405 if (__n > 0) 406 { 407 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n); 408 if (~*__p & __m) 409 return false; 410 } 411 return true; 412} 413 414template <size_t _N_words, size_t _Size> 415bool 416__bitset<_N_words, _Size>::any() const _NOEXCEPT 417{ 418 // do middle whole words 419 size_type __n = _Size; 420 __const_storage_pointer __p = __first_; 421 for (; __n >= __bits_per_word; ++__p, __n -= __bits_per_word) 422 if (*__p) 423 return true; 424 // do last partial word 425 if (__n > 0) 426 { 427 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n); 428 if (*__p & __m) 429 return true; 430 } 431 return false; 432} 433 434template <size_t _N_words, size_t _Size> 435inline 436size_t 437__bitset<_N_words, _Size>::__hash_code() const _NOEXCEPT 438{ 439 size_t __h = 0; 440 for (size_type __i = 0; __i < _N_words; ++__i) 441 __h ^= __first_[__i]; 442 return __h; 443} 444 445template <size_t _Size> 446class __bitset<1, _Size> 447{ 448public: 449 typedef ptrdiff_t difference_type; 450 typedef size_t size_type; 451 typedef size_type __storage_type; 452protected: 453 typedef __bitset __self; 454 typedef __storage_type* __storage_pointer; 455 typedef const __storage_type* __const_storage_pointer; 456 static const unsigned __bits_per_word = static_cast<unsigned>(sizeof(__storage_type) * CHAR_BIT); 457 458 friend class __bit_reference<__bitset>; 459 friend class __bit_const_reference<__bitset>; 460 friend class __bit_iterator<__bitset, false>; 461 friend class __bit_iterator<__bitset, true>; 462 friend struct __bit_array<__bitset>; 463 464 __storage_type __first_; 465 466 typedef __bit_reference<__bitset> reference; 467 typedef __bit_const_reference<__bitset> const_reference; 468 typedef __bit_iterator<__bitset, false> iterator; 469 typedef __bit_iterator<__bitset, true> const_iterator; 470 471 _LIBCPP_INLINE_VISIBILITY 472 _LIBCPP_CONSTEXPR __bitset() _NOEXCEPT; 473 _LIBCPP_INLINE_VISIBILITY 474 explicit _LIBCPP_CONSTEXPR __bitset(unsigned long long __v) _NOEXCEPT; 475 476 _LIBCPP_INLINE_VISIBILITY reference __make_ref(size_t __pos) _NOEXCEPT 477 {return reference(&__first_, __storage_type(1) << __pos);} 478 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR const_reference __make_ref(size_t __pos) const _NOEXCEPT 479 {return const_reference(&__first_, __storage_type(1) << __pos);} 480 _LIBCPP_INLINE_VISIBILITY iterator __make_iter(size_t __pos) _NOEXCEPT 481 {return iterator(&__first_ + __pos / __bits_per_word, __pos % __bits_per_word);} 482 _LIBCPP_INLINE_VISIBILITY const_iterator __make_iter(size_t __pos) const _NOEXCEPT 483 {return const_iterator(&__first_ + __pos / __bits_per_word, __pos % __bits_per_word);} 484 485 _LIBCPP_INLINE_VISIBILITY 486 void operator&=(const __bitset& __v) _NOEXCEPT; 487 _LIBCPP_INLINE_VISIBILITY 488 void operator|=(const __bitset& __v) _NOEXCEPT; 489 _LIBCPP_INLINE_VISIBILITY 490 void operator^=(const __bitset& __v) _NOEXCEPT; 491 492 _LIBCPP_INLINE_VISIBILITY 493 void flip() _NOEXCEPT; 494 495 _LIBCPP_INLINE_VISIBILITY 496 unsigned long to_ulong() const; 497 _LIBCPP_INLINE_VISIBILITY 498 unsigned long long to_ullong() const; 499 500 _LIBCPP_INLINE_VISIBILITY 501 bool all() const _NOEXCEPT; 502 _LIBCPP_INLINE_VISIBILITY 503 bool any() const _NOEXCEPT; 504 505 _LIBCPP_INLINE_VISIBILITY 506 size_t __hash_code() const _NOEXCEPT; 507}; 508 509template <size_t _Size> 510inline 511_LIBCPP_CONSTEXPR 512__bitset<1, _Size>::__bitset() _NOEXCEPT 513 : __first_(0) 514{ 515} 516 517template <size_t _Size> 518inline 519_LIBCPP_CONSTEXPR 520__bitset<1, _Size>::__bitset(unsigned long long __v) _NOEXCEPT 521 : __first_( 522 _Size == __bits_per_word ? static_cast<__storage_type>(__v) 523 : static_cast<__storage_type>(__v) & ((__storage_type(1) << _Size) - 1) 524 ) 525{ 526} 527 528template <size_t _Size> 529inline 530void 531__bitset<1, _Size>::operator&=(const __bitset& __v) _NOEXCEPT 532{ 533 __first_ &= __v.__first_; 534} 535 536template <size_t _Size> 537inline 538void 539__bitset<1, _Size>::operator|=(const __bitset& __v) _NOEXCEPT 540{ 541 __first_ |= __v.__first_; 542} 543 544template <size_t _Size> 545inline 546void 547__bitset<1, _Size>::operator^=(const __bitset& __v) _NOEXCEPT 548{ 549 __first_ ^= __v.__first_; 550} 551 552template <size_t _Size> 553inline 554void 555__bitset<1, _Size>::flip() _NOEXCEPT 556{ 557 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - _Size); 558 __first_ = ~__first_; 559 __first_ &= __m; 560} 561 562template <size_t _Size> 563inline 564unsigned long 565__bitset<1, _Size>::to_ulong() const 566{ 567 return __first_; 568} 569 570template <size_t _Size> 571inline 572unsigned long long 573__bitset<1, _Size>::to_ullong() const 574{ 575 return __first_; 576} 577 578template <size_t _Size> 579inline 580bool 581__bitset<1, _Size>::all() const _NOEXCEPT 582{ 583 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - _Size); 584 return !(~__first_ & __m); 585} 586 587template <size_t _Size> 588inline 589bool 590__bitset<1, _Size>::any() const _NOEXCEPT 591{ 592 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - _Size); 593 return __first_ & __m; 594} 595 596template <size_t _Size> 597inline 598size_t 599__bitset<1, _Size>::__hash_code() const _NOEXCEPT 600{ 601 return __first_; 602} 603 604template <> 605class __bitset<0, 0> 606{ 607public: 608 typedef ptrdiff_t difference_type; 609 typedef size_t size_type; 610 typedef size_type __storage_type; 611protected: 612 typedef __bitset __self; 613 typedef __storage_type* __storage_pointer; 614 typedef const __storage_type* __const_storage_pointer; 615 static const unsigned __bits_per_word = static_cast<unsigned>(sizeof(__storage_type) * CHAR_BIT); 616 617 friend class __bit_reference<__bitset>; 618 friend class __bit_const_reference<__bitset>; 619 friend class __bit_iterator<__bitset, false>; 620 friend class __bit_iterator<__bitset, true>; 621 friend struct __bit_array<__bitset>; 622 623 typedef __bit_reference<__bitset> reference; 624 typedef __bit_const_reference<__bitset> const_reference; 625 typedef __bit_iterator<__bitset, false> iterator; 626 typedef __bit_iterator<__bitset, true> const_iterator; 627 628 _LIBCPP_INLINE_VISIBILITY 629 _LIBCPP_CONSTEXPR __bitset() _NOEXCEPT; 630 _LIBCPP_INLINE_VISIBILITY 631 explicit _LIBCPP_CONSTEXPR __bitset(unsigned long long) _NOEXCEPT; 632 633 _LIBCPP_INLINE_VISIBILITY reference __make_ref(size_t) _NOEXCEPT 634 {return reference(nullptr, 1);} 635 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR const_reference __make_ref(size_t) const _NOEXCEPT 636 {return const_reference(nullptr, 1);} 637 _LIBCPP_INLINE_VISIBILITY iterator __make_iter(size_t) _NOEXCEPT 638 {return iterator(nullptr, 0);} 639 _LIBCPP_INLINE_VISIBILITY const_iterator __make_iter(size_t) const _NOEXCEPT 640 {return const_iterator(nullptr, 0);} 641 642 _LIBCPP_INLINE_VISIBILITY void operator&=(const __bitset&) _NOEXCEPT {} 643 _LIBCPP_INLINE_VISIBILITY void operator|=(const __bitset&) _NOEXCEPT {} 644 _LIBCPP_INLINE_VISIBILITY void operator^=(const __bitset&) _NOEXCEPT {} 645 646 _LIBCPP_INLINE_VISIBILITY void flip() _NOEXCEPT {} 647 648 _LIBCPP_INLINE_VISIBILITY unsigned long to_ulong() const {return 0;} 649 _LIBCPP_INLINE_VISIBILITY unsigned long long to_ullong() const {return 0;} 650 651 _LIBCPP_INLINE_VISIBILITY bool all() const _NOEXCEPT {return true;} 652 _LIBCPP_INLINE_VISIBILITY bool any() const _NOEXCEPT {return false;} 653 654 _LIBCPP_INLINE_VISIBILITY size_t __hash_code() const _NOEXCEPT {return 0;} 655}; 656 657inline 658_LIBCPP_CONSTEXPR 659__bitset<0, 0>::__bitset() _NOEXCEPT 660{ 661} 662 663inline 664_LIBCPP_CONSTEXPR 665__bitset<0, 0>::__bitset(unsigned long long) _NOEXCEPT 666{ 667} 668 669template <size_t _Size> class _LIBCPP_TEMPLATE_VIS bitset; 670template <size_t _Size> struct hash<bitset<_Size> >; 671 672template <size_t _Size> 673class _LIBCPP_TEMPLATE_VIS bitset 674 : private __bitset<_Size == 0 ? 0 : (_Size - 1) / (sizeof(size_t) * CHAR_BIT) + 1, _Size> 675{ 676public: 677 static const unsigned __n_words = _Size == 0 ? 0 : (_Size - 1) / (sizeof(size_t) * CHAR_BIT) + 1; 678 typedef __bitset<__n_words, _Size> base; 679 680public: 681 typedef typename base::reference reference; 682 typedef typename base::const_reference const_reference; 683 684 // 23.3.5.1 constructors: 685 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR bitset() _NOEXCEPT {} 686 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 687 bitset(unsigned long long __v) _NOEXCEPT : base(__v) {} 688 template<class _CharT, class = __enable_if_t<_IsCharLikeType<_CharT>::value> > 689 explicit bitset(const _CharT* __str, 690 typename basic_string<_CharT>::size_type __n = basic_string<_CharT>::npos, 691 _CharT __zero = _CharT('0'), _CharT __one = _CharT('1')); 692 template<class _CharT, class _Traits, class _Allocator> 693 explicit bitset(const basic_string<_CharT,_Traits,_Allocator>& __str, 694 typename basic_string<_CharT,_Traits,_Allocator>::size_type __pos = 0, 695 typename basic_string<_CharT,_Traits,_Allocator>::size_type __n = 696 (basic_string<_CharT,_Traits,_Allocator>::npos), 697 _CharT __zero = _CharT('0'), _CharT __one = _CharT('1')); 698 699 // 23.3.5.2 bitset operations: 700 _LIBCPP_INLINE_VISIBILITY 701 bitset& operator&=(const bitset& __rhs) _NOEXCEPT; 702 _LIBCPP_INLINE_VISIBILITY 703 bitset& operator|=(const bitset& __rhs) _NOEXCEPT; 704 _LIBCPP_INLINE_VISIBILITY 705 bitset& operator^=(const bitset& __rhs) _NOEXCEPT; 706 bitset& operator<<=(size_t __pos) _NOEXCEPT; 707 bitset& operator>>=(size_t __pos) _NOEXCEPT; 708 _LIBCPP_INLINE_VISIBILITY 709 bitset& set() _NOEXCEPT; 710 bitset& set(size_t __pos, bool __val = true); 711 _LIBCPP_INLINE_VISIBILITY 712 bitset& reset() _NOEXCEPT; 713 bitset& reset(size_t __pos); 714 _LIBCPP_INLINE_VISIBILITY 715 bitset operator~() const _NOEXCEPT; 716 _LIBCPP_INLINE_VISIBILITY 717 bitset& flip() _NOEXCEPT; 718 bitset& flip(size_t __pos); 719 720 // element access: 721#ifdef _LIBCPP_ABI_BITSET_VECTOR_BOOL_CONST_SUBSCRIPT_RETURN_BOOL 722 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR bool operator[](size_t __p) const {return base::__make_ref(__p);} 723#else 724 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR const_reference operator[](size_t __p) const {return base::__make_ref(__p);} 725#endif 726 _LIBCPP_HIDE_FROM_ABI reference operator[](size_t __p) {return base::__make_ref(__p);} 727 _LIBCPP_INLINE_VISIBILITY 728 unsigned long to_ulong() const; 729 _LIBCPP_INLINE_VISIBILITY 730 unsigned long long to_ullong() const; 731 template <class _CharT, class _Traits, class _Allocator> 732 basic_string<_CharT, _Traits, _Allocator> to_string(_CharT __zero = _CharT('0'), 733 _CharT __one = _CharT('1')) const; 734 template <class _CharT, class _Traits> 735 _LIBCPP_INLINE_VISIBILITY 736 basic_string<_CharT, _Traits, allocator<_CharT> > to_string(_CharT __zero = _CharT('0'), 737 _CharT __one = _CharT('1')) const; 738 template <class _CharT> 739 _LIBCPP_INLINE_VISIBILITY 740 basic_string<_CharT, char_traits<_CharT>, allocator<_CharT> > to_string(_CharT __zero = _CharT('0'), 741 _CharT __one = _CharT('1')) const; 742 _LIBCPP_INLINE_VISIBILITY 743 basic_string<char, char_traits<char>, allocator<char> > to_string(char __zero = '0', 744 char __one = '1') const; 745 _LIBCPP_INLINE_VISIBILITY 746 size_t count() const _NOEXCEPT; 747 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR size_t size() const _NOEXCEPT {return _Size;} 748 _LIBCPP_INLINE_VISIBILITY 749 bool operator==(const bitset& __rhs) const _NOEXCEPT; 750 _LIBCPP_INLINE_VISIBILITY 751 bool operator!=(const bitset& __rhs) const _NOEXCEPT; 752 bool test(size_t __pos) const; 753 _LIBCPP_INLINE_VISIBILITY 754 bool all() const _NOEXCEPT; 755 _LIBCPP_INLINE_VISIBILITY 756 bool any() const _NOEXCEPT; 757 _LIBCPP_INLINE_VISIBILITY bool none() const _NOEXCEPT {return !any();} 758 _LIBCPP_INLINE_VISIBILITY 759 bitset operator<<(size_t __pos) const _NOEXCEPT; 760 _LIBCPP_INLINE_VISIBILITY 761 bitset operator>>(size_t __pos) const _NOEXCEPT; 762 763private: 764 765 _LIBCPP_INLINE_VISIBILITY 766 size_t __hash_code() const _NOEXCEPT {return base::__hash_code();} 767 768 friend struct hash<bitset>; 769}; 770 771template <size_t _Size> 772template<class _CharT, class> 773bitset<_Size>::bitset(const _CharT* __str, 774 typename basic_string<_CharT>::size_type __n, 775 _CharT __zero, _CharT __one) 776{ 777 size_t __rlen = _VSTD::min(__n, char_traits<_CharT>::length(__str)); 778 for (size_t __i = 0; __i < __rlen; ++__i) 779 if (__str[__i] != __zero && __str[__i] != __one) 780 __throw_invalid_argument("bitset string ctor has invalid argument"); 781 782 size_t _Mp = _VSTD::min(__rlen, _Size); 783 size_t __i = 0; 784 for (; __i < _Mp; ++__i) 785 { 786 _CharT __c = __str[_Mp - 1 - __i]; 787 (*this)[__i] = (__c == __one); 788 } 789 _VSTD::fill(base::__make_iter(__i), base::__make_iter(_Size), false); 790} 791 792template <size_t _Size> 793template<class _CharT, class _Traits, class _Allocator> 794bitset<_Size>::bitset(const basic_string<_CharT,_Traits,_Allocator>& __str, 795 typename basic_string<_CharT,_Traits,_Allocator>::size_type __pos, 796 typename basic_string<_CharT,_Traits,_Allocator>::size_type __n, 797 _CharT __zero, _CharT __one) 798{ 799 if (__pos > __str.size()) 800 __throw_out_of_range("bitset string pos out of range"); 801 802 size_t __rlen = _VSTD::min(__n, __str.size() - __pos); 803 for (size_t __i = __pos; __i < __pos + __rlen; ++__i) 804 if (!_Traits::eq(__str[__i], __zero) && !_Traits::eq(__str[__i], __one)) 805 __throw_invalid_argument("bitset string ctor has invalid argument"); 806 807 size_t _Mp = _VSTD::min(__rlen, _Size); 808 size_t __i = 0; 809 for (; __i < _Mp; ++__i) 810 { 811 _CharT __c = __str[__pos + _Mp - 1 - __i]; 812 (*this)[__i] = _Traits::eq(__c, __one); 813 } 814 _VSTD::fill(base::__make_iter(__i), base::__make_iter(_Size), false); 815} 816 817template <size_t _Size> 818inline 819bitset<_Size>& 820bitset<_Size>::operator&=(const bitset& __rhs) _NOEXCEPT 821{ 822 base::operator&=(__rhs); 823 return *this; 824} 825 826template <size_t _Size> 827inline 828bitset<_Size>& 829bitset<_Size>::operator|=(const bitset& __rhs) _NOEXCEPT 830{ 831 base::operator|=(__rhs); 832 return *this; 833} 834 835template <size_t _Size> 836inline 837bitset<_Size>& 838bitset<_Size>::operator^=(const bitset& __rhs) _NOEXCEPT 839{ 840 base::operator^=(__rhs); 841 return *this; 842} 843 844template <size_t _Size> 845bitset<_Size>& 846bitset<_Size>::operator<<=(size_t __pos) _NOEXCEPT 847{ 848 __pos = _VSTD::min(__pos, _Size); 849 _VSTD::copy_backward(base::__make_iter(0), base::__make_iter(_Size - __pos), base::__make_iter(_Size)); 850 _VSTD::fill_n(base::__make_iter(0), __pos, false); 851 return *this; 852} 853 854template <size_t _Size> 855bitset<_Size>& 856bitset<_Size>::operator>>=(size_t __pos) _NOEXCEPT 857{ 858 __pos = _VSTD::min(__pos, _Size); 859 _VSTD::copy(base::__make_iter(__pos), base::__make_iter(_Size), base::__make_iter(0)); 860 _VSTD::fill_n(base::__make_iter(_Size - __pos), __pos, false); 861 return *this; 862} 863 864template <size_t _Size> 865inline 866bitset<_Size>& 867bitset<_Size>::set() _NOEXCEPT 868{ 869 _VSTD::fill_n(base::__make_iter(0), _Size, true); 870 return *this; 871} 872 873template <size_t _Size> 874bitset<_Size>& 875bitset<_Size>::set(size_t __pos, bool __val) 876{ 877 if (__pos >= _Size) 878 __throw_out_of_range("bitset set argument out of range"); 879 880 (*this)[__pos] = __val; 881 return *this; 882} 883 884template <size_t _Size> 885inline 886bitset<_Size>& 887bitset<_Size>::reset() _NOEXCEPT 888{ 889 _VSTD::fill_n(base::__make_iter(0), _Size, false); 890 return *this; 891} 892 893template <size_t _Size> 894bitset<_Size>& 895bitset<_Size>::reset(size_t __pos) 896{ 897 if (__pos >= _Size) 898 __throw_out_of_range("bitset reset argument out of range"); 899 900 (*this)[__pos] = false; 901 return *this; 902} 903 904template <size_t _Size> 905inline 906bitset<_Size> 907bitset<_Size>::operator~() const _NOEXCEPT 908{ 909 bitset __x(*this); 910 __x.flip(); 911 return __x; 912} 913 914template <size_t _Size> 915inline 916bitset<_Size>& 917bitset<_Size>::flip() _NOEXCEPT 918{ 919 base::flip(); 920 return *this; 921} 922 923template <size_t _Size> 924bitset<_Size>& 925bitset<_Size>::flip(size_t __pos) 926{ 927 if (__pos >= _Size) 928 __throw_out_of_range("bitset flip argument out of range"); 929 930 reference r = base::__make_ref(__pos); 931 r = ~r; 932 return *this; 933} 934 935template <size_t _Size> 936inline 937unsigned long 938bitset<_Size>::to_ulong() const 939{ 940 return base::to_ulong(); 941} 942 943template <size_t _Size> 944inline 945unsigned long long 946bitset<_Size>::to_ullong() const 947{ 948 return base::to_ullong(); 949} 950 951template <size_t _Size> 952template <class _CharT, class _Traits, class _Allocator> 953basic_string<_CharT, _Traits, _Allocator> 954bitset<_Size>::to_string(_CharT __zero, _CharT __one) const 955{ 956 basic_string<_CharT, _Traits, _Allocator> __r(_Size, __zero); 957 for (size_t __i = 0; __i != _Size; ++__i) 958 { 959 if ((*this)[__i]) 960 __r[_Size - 1 - __i] = __one; 961 } 962 return __r; 963} 964 965template <size_t _Size> 966template <class _CharT, class _Traits> 967inline 968basic_string<_CharT, _Traits, allocator<_CharT> > 969bitset<_Size>::to_string(_CharT __zero, _CharT __one) const 970{ 971 return to_string<_CharT, _Traits, allocator<_CharT> >(__zero, __one); 972} 973 974template <size_t _Size> 975template <class _CharT> 976inline 977basic_string<_CharT, char_traits<_CharT>, allocator<_CharT> > 978bitset<_Size>::to_string(_CharT __zero, _CharT __one) const 979{ 980 return to_string<_CharT, char_traits<_CharT>, allocator<_CharT> >(__zero, __one); 981} 982 983template <size_t _Size> 984inline 985basic_string<char, char_traits<char>, allocator<char> > 986bitset<_Size>::to_string(char __zero, char __one) const 987{ 988 return to_string<char, char_traits<char>, allocator<char> >(__zero, __one); 989} 990 991template <size_t _Size> 992inline 993size_t 994bitset<_Size>::count() const _NOEXCEPT 995{ 996 return static_cast<size_t>(_VSTD::__count_bool_true(base::__make_iter(0), _Size)); 997} 998 999template <size_t _Size> 1000inline 1001bool 1002bitset<_Size>::operator==(const bitset& __rhs) const _NOEXCEPT 1003{ 1004 return _VSTD::equal(base::__make_iter(0), base::__make_iter(_Size), __rhs.__make_iter(0)); 1005} 1006 1007template <size_t _Size> 1008inline 1009bool 1010bitset<_Size>::operator!=(const bitset& __rhs) const _NOEXCEPT 1011{ 1012 return !(*this == __rhs); 1013} 1014 1015template <size_t _Size> 1016bool 1017bitset<_Size>::test(size_t __pos) const 1018{ 1019 if (__pos >= _Size) 1020 __throw_out_of_range("bitset test argument out of range"); 1021 1022 return (*this)[__pos]; 1023} 1024 1025template <size_t _Size> 1026inline 1027bool 1028bitset<_Size>::all() const _NOEXCEPT 1029{ 1030 return base::all(); 1031} 1032 1033template <size_t _Size> 1034inline 1035bool 1036bitset<_Size>::any() const _NOEXCEPT 1037{ 1038 return base::any(); 1039} 1040 1041template <size_t _Size> 1042inline 1043bitset<_Size> 1044bitset<_Size>::operator<<(size_t __pos) const _NOEXCEPT 1045{ 1046 bitset __r = *this; 1047 __r <<= __pos; 1048 return __r; 1049} 1050 1051template <size_t _Size> 1052inline 1053bitset<_Size> 1054bitset<_Size>::operator>>(size_t __pos) const _NOEXCEPT 1055{ 1056 bitset __r = *this; 1057 __r >>= __pos; 1058 return __r; 1059} 1060 1061template <size_t _Size> 1062inline _LIBCPP_INLINE_VISIBILITY 1063bitset<_Size> 1064operator&(const bitset<_Size>& __x, const bitset<_Size>& __y) _NOEXCEPT 1065{ 1066 bitset<_Size> __r = __x; 1067 __r &= __y; 1068 return __r; 1069} 1070 1071template <size_t _Size> 1072inline _LIBCPP_INLINE_VISIBILITY 1073bitset<_Size> 1074operator|(const bitset<_Size>& __x, const bitset<_Size>& __y) _NOEXCEPT 1075{ 1076 bitset<_Size> __r = __x; 1077 __r |= __y; 1078 return __r; 1079} 1080 1081template <size_t _Size> 1082inline _LIBCPP_INLINE_VISIBILITY 1083bitset<_Size> 1084operator^(const bitset<_Size>& __x, const bitset<_Size>& __y) _NOEXCEPT 1085{ 1086 bitset<_Size> __r = __x; 1087 __r ^= __y; 1088 return __r; 1089} 1090 1091template <size_t _Size> 1092struct _LIBCPP_TEMPLATE_VIS hash<bitset<_Size> > 1093 : public __unary_function<bitset<_Size>, size_t> 1094{ 1095 _LIBCPP_INLINE_VISIBILITY 1096 size_t operator()(const bitset<_Size>& __bs) const _NOEXCEPT 1097 {return __bs.__hash_code();} 1098}; 1099 1100template <class _CharT, class _Traits, size_t _Size> 1101basic_istream<_CharT, _Traits>& 1102operator>>(basic_istream<_CharT, _Traits>& __is, bitset<_Size>& __x); 1103 1104template <class _CharT, class _Traits, size_t _Size> 1105basic_ostream<_CharT, _Traits>& 1106operator<<(basic_ostream<_CharT, _Traits>& __os, const bitset<_Size>& __x); 1107 1108_LIBCPP_END_NAMESPACE_STD 1109 1110_LIBCPP_POP_MACROS 1111 1112#endif // _LIBCPP_BITSET 1113