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 17namespace std 18{ 19 20namespace std { 21 22template <size_t N> 23class bitset 24{ 25public: 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: 93template <size_t N> 94bitset<N> operator&(const bitset<N>&, const bitset<N>&) noexcept; 95 96template <size_t N> 97bitset<N> operator|(const bitset<N>&, const bitset<N>&) noexcept; 98 99template <size_t N> 100bitset<N> operator^(const bitset<N>&, const bitset<N>&) noexcept; 101 102template <class charT, class traits, size_t N> 103basic_istream<charT, traits>& 104operator>>(basic_istream<charT, traits>& is, bitset<N>& x); 105 106template <class charT, class traits, size_t N> 107basic_ostream<charT, traits>& 108operator<<(basic_ostream<charT, traits>& os, const bitset<N>& x); 109 110template <size_t N> struct hash<std::bitset<N>>; 111 112} // std 113 114*/ 115 116#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 117#pragma GCC system_header 118#endif 119 120#include <__config> 121#include <__bit_reference> 122#include <cstddef> 123#include <climits> 124#include <string> 125#include <stdexcept> 126#include <iosfwd> 127#include <__functional_base> 128#if defined(_LIBCPP_NO_EXCEPTIONS) 129 #include <cassert> 130#endif 131 132#include <__undef_min_max> 133 134_LIBCPP_BEGIN_NAMESPACE_STD 135 136template <size_t _N_words, size_t _Size> 137class __bitset; 138 139template <size_t _N_words, size_t _Size> 140struct __has_storage_type<__bitset<_N_words, _Size> > 141{ 142 static const bool value = true; 143}; 144 145template <size_t _N_words, size_t _Size> 146class __bitset 147{ 148public: 149 typedef ptrdiff_t difference_type; 150 typedef size_t size_type; 151 typedef size_type __storage_type; 152protected: 153 typedef __bitset __self; 154 typedef __storage_type* __storage_pointer; 155 typedef const __storage_type* __const_storage_pointer; 156 static const unsigned __bits_per_word = static_cast<unsigned>(sizeof(__storage_type) * CHAR_BIT); 157 158 friend class __bit_reference<__bitset>; 159 friend class __bit_const_reference<__bitset>; 160 friend class __bit_iterator<__bitset, false>; 161 friend class __bit_iterator<__bitset, true>; 162 friend struct __bit_array<__bitset>; 163 164 __storage_type __first_[_N_words]; 165 166 typedef __bit_reference<__bitset> reference; 167 typedef __bit_const_reference<__bitset> const_reference; 168 typedef __bit_iterator<__bitset, false> iterator; 169 typedef __bit_iterator<__bitset, true> const_iterator; 170 171 _LIBCPP_INLINE_VISIBILITY 172 _LIBCPP_CONSTEXPR __bitset() _NOEXCEPT; 173 _LIBCPP_INLINE_VISIBILITY 174 explicit _LIBCPP_CONSTEXPR __bitset(unsigned long long __v) _NOEXCEPT; 175 176 _LIBCPP_INLINE_VISIBILITY reference __make_ref(size_t __pos) _NOEXCEPT 177 {return reference(__first_ + __pos / __bits_per_word, __storage_type(1) << __pos % __bits_per_word);} 178 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR const_reference __make_ref(size_t __pos) const _NOEXCEPT 179 {return const_reference(__first_ + __pos / __bits_per_word, __storage_type(1) << __pos % __bits_per_word);} 180 _LIBCPP_INLINE_VISIBILITY iterator __make_iter(size_t __pos) _NOEXCEPT 181 {return iterator(__first_ + __pos / __bits_per_word, __pos % __bits_per_word);} 182 _LIBCPP_INLINE_VISIBILITY const_iterator __make_iter(size_t __pos) const _NOEXCEPT 183 {return const_iterator(__first_ + __pos / __bits_per_word, __pos % __bits_per_word);} 184 185 _LIBCPP_INLINE_VISIBILITY 186 void operator&=(const __bitset& __v) _NOEXCEPT; 187 _LIBCPP_INLINE_VISIBILITY 188 void operator|=(const __bitset& __v) _NOEXCEPT; 189 _LIBCPP_INLINE_VISIBILITY 190 void operator^=(const __bitset& __v) _NOEXCEPT; 191 192 void flip() _NOEXCEPT; 193 _LIBCPP_INLINE_VISIBILITY unsigned long to_ulong() const 194 {return to_ulong(integral_constant<bool, _Size < sizeof(unsigned long) * CHAR_BIT>());} 195 _LIBCPP_INLINE_VISIBILITY unsigned long long to_ullong() const 196 {return to_ullong(integral_constant<bool, _Size < sizeof(unsigned long long) * CHAR_BIT>());} 197 198 bool all() const _NOEXCEPT; 199 bool any() const _NOEXCEPT; 200 _LIBCPP_INLINE_VISIBILITY 201 size_t __hash_code() const _NOEXCEPT; 202private: 203#ifdef _LIBCPP_HAS_NO_CONSTEXPR 204 void __init(unsigned long long __v, false_type) _NOEXCEPT; 205 _LIBCPP_INLINE_VISIBILITY 206 void __init(unsigned long long __v, true_type) _NOEXCEPT; 207#endif // _LIBCPP_HAS_NO_CONSTEXPR 208 unsigned long to_ulong(false_type) const; 209 _LIBCPP_INLINE_VISIBILITY 210 unsigned long to_ulong(true_type) const; 211 unsigned long long to_ullong(false_type) const; 212 _LIBCPP_INLINE_VISIBILITY 213 unsigned long long to_ullong(true_type) const; 214 _LIBCPP_INLINE_VISIBILITY 215 unsigned long long to_ullong(true_type, false_type) const; 216 unsigned long long to_ullong(true_type, true_type) const; 217}; 218 219template <size_t _N_words, size_t _Size> 220inline 221_LIBCPP_CONSTEXPR 222__bitset<_N_words, _Size>::__bitset() _NOEXCEPT 223#ifndef _LIBCPP_HAS_NO_CONSTEXPR 224 : __first_{0} 225#endif 226{ 227#ifdef _LIBCPP_HAS_NO_CONSTEXPR 228 _VSTD::fill_n(__first_, _N_words, __storage_type(0)); 229#endif 230} 231 232#ifdef _LIBCPP_HAS_NO_CONSTEXPR 233 234template <size_t _N_words, size_t _Size> 235void 236__bitset<_N_words, _Size>::__init(unsigned long long __v, false_type) _NOEXCEPT 237{ 238 __storage_type __t[sizeof(unsigned long long) / sizeof(__storage_type)]; 239 for (size_t __i = 0; __i < sizeof(__t)/sizeof(__t[0]); ++__i, __v >>= __bits_per_word) 240 __t[__i] = static_cast<__storage_type>(__v); 241 _VSTD::copy(__t, __t + sizeof(__t)/sizeof(__t[0]), __first_); 242 _VSTD::fill(__first_ + sizeof(__t)/sizeof(__t[0]), __first_ + sizeof(__first_)/sizeof(__first_[0]), 243 __storage_type(0)); 244} 245 246template <size_t _N_words, size_t _Size> 247inline _LIBCPP_INLINE_VISIBILITY 248void 249__bitset<_N_words, _Size>::__init(unsigned long long __v, true_type) _NOEXCEPT 250{ 251 __first_[0] = __v; 252 _VSTD::fill(__first_ + 1, __first_ + sizeof(__first_)/sizeof(__first_[0]), __storage_type(0)); 253} 254 255#endif // _LIBCPP_HAS_NO_CONSTEXPR 256 257template <size_t _N_words, size_t _Size> 258inline 259_LIBCPP_CONSTEXPR 260__bitset<_N_words, _Size>::__bitset(unsigned long long __v) _NOEXCEPT 261#ifndef _LIBCPP_HAS_NO_CONSTEXPR 262#if __SIZEOF_SIZE_T__ == 8 263 : __first_{__v} 264#elif __SIZEOF_SIZE_T__ == 4 265 : __first_{__v, __v >> __bits_per_word} 266#else 267#error This constructor has not been ported to this platform 268#endif 269#endif 270{ 271#ifdef _LIBCPP_HAS_NO_CONSTEXPR 272 __init(__v, integral_constant<bool, sizeof(unsigned long long) == sizeof(__storage_type)>()); 273#endif 274} 275 276template <size_t _N_words, size_t _Size> 277inline 278void 279__bitset<_N_words, _Size>::operator&=(const __bitset& __v) _NOEXCEPT 280{ 281 for (size_type __i = 0; __i < _N_words; ++__i) 282 __first_[__i] &= __v.__first_[__i]; 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> 304void 305__bitset<_N_words, _Size>::flip() _NOEXCEPT 306{ 307 // do middle whole words 308 size_type __n = _Size; 309 __storage_pointer __p = __first_; 310 for (; __n >= __bits_per_word; ++__p, __n -= __bits_per_word) 311 *__p = ~*__p; 312 // do last partial word 313 if (__n > 0) 314 { 315 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n); 316 __storage_type __b = *__p & __m; 317 *__p &= ~__m; 318 *__p |= ~__b & __m; 319 } 320} 321 322template <size_t _N_words, size_t _Size> 323unsigned long 324__bitset<_N_words, _Size>::to_ulong(false_type) const 325{ 326 const_iterator __e = __make_iter(_Size); 327 const_iterator __i = _VSTD::find(__make_iter(sizeof(unsigned long) * CHAR_BIT), __e, true); 328 if (__i != __e) 329#ifndef _LIBCPP_NO_EXCEPTIONS 330 throw overflow_error("bitset to_ulong overflow error"); 331#else 332 assert(!"bitset to_ulong overflow error"); 333#endif 334 return __first_[0]; 335} 336 337template <size_t _N_words, size_t _Size> 338inline 339unsigned long 340__bitset<_N_words, _Size>::to_ulong(true_type) const 341{ 342 return __first_[0]; 343} 344 345template <size_t _N_words, size_t _Size> 346unsigned long long 347__bitset<_N_words, _Size>::to_ullong(false_type) const 348{ 349 const_iterator __e = __make_iter(_Size); 350 const_iterator __i = _VSTD::find(__make_iter(sizeof(unsigned long long) * CHAR_BIT), __e, true); 351 if (__i != __e) 352#ifndef _LIBCPP_NO_EXCEPTIONS 353 throw overflow_error("bitset to_ullong overflow error"); 354#else 355 assert(!"bitset to_ullong overflow error"); 356#endif 357 return to_ullong(true_type()); 358} 359 360template <size_t _N_words, size_t _Size> 361inline 362unsigned long long 363__bitset<_N_words, _Size>::to_ullong(true_type) const 364{ 365 return to_ullong(true_type(), integral_constant<bool, sizeof(__storage_type) < sizeof(unsigned long long)>()); 366} 367 368template <size_t _N_words, size_t _Size> 369inline 370unsigned long long 371__bitset<_N_words, _Size>::to_ullong(true_type, false_type) const 372{ 373 return __first_[0]; 374} 375 376template <size_t _N_words, size_t _Size> 377unsigned long long 378__bitset<_N_words, _Size>::to_ullong(true_type, true_type) const 379{ 380 unsigned long long __r = __first_[0]; 381 for (std::size_t __i = 1; __i < sizeof(unsigned long long) / sizeof(__storage_type); ++__i) 382 __r |= static_cast<unsigned long long>(__first_[__i]) << (sizeof(__storage_type) * CHAR_BIT); 383 return __r; 384} 385 386template <size_t _N_words, size_t _Size> 387bool 388__bitset<_N_words, _Size>::all() const _NOEXCEPT 389{ 390 // do middle whole words 391 size_type __n = _Size; 392 __const_storage_pointer __p = __first_; 393 for (; __n >= __bits_per_word; ++__p, __n -= __bits_per_word) 394 if (~*__p) 395 return false; 396 // do last partial word 397 if (__n > 0) 398 { 399 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n); 400 if (~*__p & __m) 401 return false; 402 } 403 return true; 404} 405 406template <size_t _N_words, size_t _Size> 407bool 408__bitset<_N_words, _Size>::any() const _NOEXCEPT 409{ 410 // do middle whole words 411 size_type __n = _Size; 412 __const_storage_pointer __p = __first_; 413 for (; __n >= __bits_per_word; ++__p, __n -= __bits_per_word) 414 if (*__p) 415 return true; 416 // do last partial word 417 if (__n > 0) 418 { 419 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n); 420 if (*__p & __m) 421 return true; 422 } 423 return false; 424} 425 426template <size_t _N_words, size_t _Size> 427inline 428size_t 429__bitset<_N_words, _Size>::__hash_code() const _NOEXCEPT 430{ 431 size_t __h = 0; 432 for (size_type __i = 0; __i < _N_words; ++__i) 433 __h ^= __first_[__i]; 434 return __h; 435} 436 437template <size_t _Size> 438class __bitset<1, _Size> 439{ 440public: 441 typedef ptrdiff_t difference_type; 442 typedef size_t size_type; 443 typedef size_type __storage_type; 444protected: 445 typedef __bitset __self; 446 typedef __storage_type* __storage_pointer; 447 typedef const __storage_type* __const_storage_pointer; 448 static const unsigned __bits_per_word = static_cast<unsigned>(sizeof(__storage_type) * CHAR_BIT); 449 450 friend class __bit_reference<__bitset>; 451 friend class __bit_const_reference<__bitset>; 452 friend class __bit_iterator<__bitset, false>; 453 friend class __bit_iterator<__bitset, true>; 454 friend struct __bit_array<__bitset>; 455 456 __storage_type __first_; 457 458 typedef __bit_reference<__bitset> reference; 459 typedef __bit_const_reference<__bitset> const_reference; 460 typedef __bit_iterator<__bitset, false> iterator; 461 typedef __bit_iterator<__bitset, true> const_iterator; 462 463 _LIBCPP_INLINE_VISIBILITY 464 _LIBCPP_CONSTEXPR __bitset() _NOEXCEPT; 465 _LIBCPP_INLINE_VISIBILITY 466 explicit _LIBCPP_CONSTEXPR __bitset(unsigned long long __v) _NOEXCEPT; 467 468 _LIBCPP_INLINE_VISIBILITY reference __make_ref(size_t __pos) _NOEXCEPT 469 {return reference(&__first_, __storage_type(1) << __pos);} 470 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR const_reference __make_ref(size_t __pos) const _NOEXCEPT 471 {return const_reference(&__first_, __storage_type(1) << __pos);} 472 _LIBCPP_INLINE_VISIBILITY iterator __make_iter(size_t __pos) _NOEXCEPT 473 {return iterator(&__first_ + __pos / __bits_per_word, __pos % __bits_per_word);} 474 _LIBCPP_INLINE_VISIBILITY const_iterator __make_iter(size_t __pos) const _NOEXCEPT 475 {return const_iterator(&__first_ + __pos / __bits_per_word, __pos % __bits_per_word);} 476 477 _LIBCPP_INLINE_VISIBILITY 478 void operator&=(const __bitset& __v) _NOEXCEPT; 479 _LIBCPP_INLINE_VISIBILITY 480 void operator|=(const __bitset& __v) _NOEXCEPT; 481 _LIBCPP_INLINE_VISIBILITY 482 void operator^=(const __bitset& __v) _NOEXCEPT; 483 484 _LIBCPP_INLINE_VISIBILITY 485 void flip() _NOEXCEPT; 486 487 _LIBCPP_INLINE_VISIBILITY 488 unsigned long to_ulong() const; 489 _LIBCPP_INLINE_VISIBILITY 490 unsigned long long to_ullong() const; 491 492 _LIBCPP_INLINE_VISIBILITY 493 bool all() const _NOEXCEPT; 494 _LIBCPP_INLINE_VISIBILITY 495 bool any() const _NOEXCEPT; 496 497 _LIBCPP_INLINE_VISIBILITY 498 size_t __hash_code() const _NOEXCEPT; 499}; 500 501template <size_t _Size> 502inline 503_LIBCPP_CONSTEXPR 504__bitset<1, _Size>::__bitset() _NOEXCEPT 505 : __first_(0) 506{ 507} 508 509template <size_t _Size> 510inline 511_LIBCPP_CONSTEXPR 512__bitset<1, _Size>::__bitset(unsigned long long __v) _NOEXCEPT 513 : __first_(static_cast<__storage_type>(__v)) 514{ 515} 516 517template <size_t _Size> 518inline 519void 520__bitset<1, _Size>::operator&=(const __bitset& __v) _NOEXCEPT 521{ 522 __first_ &= __v.__first_; 523} 524 525template <size_t _Size> 526inline 527void 528__bitset<1, _Size>::operator|=(const __bitset& __v) _NOEXCEPT 529{ 530 __first_ |= __v.__first_; 531} 532 533template <size_t _Size> 534inline 535void 536__bitset<1, _Size>::operator^=(const __bitset& __v) _NOEXCEPT 537{ 538 __first_ ^= __v.__first_; 539} 540 541template <size_t _Size> 542inline 543void 544__bitset<1, _Size>::flip() _NOEXCEPT 545{ 546 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - _Size); 547 __first_ = ~__first_; 548 __first_ &= __m; 549} 550 551template <size_t _Size> 552inline 553unsigned long 554__bitset<1, _Size>::to_ulong() const 555{ 556 return __first_; 557} 558 559template <size_t _Size> 560inline 561unsigned long long 562__bitset<1, _Size>::to_ullong() const 563{ 564 return __first_; 565} 566 567template <size_t _Size> 568inline 569bool 570__bitset<1, _Size>::all() const _NOEXCEPT 571{ 572 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - _Size); 573 return !(~__first_ & __m); 574} 575 576template <size_t _Size> 577inline 578bool 579__bitset<1, _Size>::any() const _NOEXCEPT 580{ 581 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - _Size); 582 return __first_ & __m; 583} 584 585template <size_t _Size> 586inline 587size_t 588__bitset<1, _Size>::__hash_code() const _NOEXCEPT 589{ 590 return __first_; 591} 592 593template <> 594class __bitset<0, 0> 595{ 596public: 597 typedef ptrdiff_t difference_type; 598 typedef size_t size_type; 599 typedef size_type __storage_type; 600protected: 601 typedef __bitset __self; 602 typedef __storage_type* __storage_pointer; 603 typedef const __storage_type* __const_storage_pointer; 604 static const unsigned __bits_per_word = static_cast<unsigned>(sizeof(__storage_type) * CHAR_BIT); 605 606 friend class __bit_reference<__bitset>; 607 friend class __bit_const_reference<__bitset>; 608 friend class __bit_iterator<__bitset, false>; 609 friend class __bit_iterator<__bitset, true>; 610 friend struct __bit_array<__bitset>; 611 612 typedef __bit_reference<__bitset> reference; 613 typedef __bit_const_reference<__bitset> const_reference; 614 typedef __bit_iterator<__bitset, false> iterator; 615 typedef __bit_iterator<__bitset, true> const_iterator; 616 617 _LIBCPP_INLINE_VISIBILITY 618 _LIBCPP_CONSTEXPR __bitset() _NOEXCEPT; 619 _LIBCPP_INLINE_VISIBILITY 620 explicit _LIBCPP_CONSTEXPR __bitset(unsigned long long) _NOEXCEPT; 621 622 _LIBCPP_INLINE_VISIBILITY reference __make_ref(size_t) _NOEXCEPT 623 {return reference(0, 1);} 624 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR const_reference __make_ref(size_t) const _NOEXCEPT 625 {return const_reference(0, 1);} 626 _LIBCPP_INLINE_VISIBILITY iterator __make_iter(size_t) _NOEXCEPT 627 {return iterator(0, 0);} 628 _LIBCPP_INLINE_VISIBILITY const_iterator __make_iter(size_t) const _NOEXCEPT 629 {return const_iterator(0, 0);} 630 631 _LIBCPP_INLINE_VISIBILITY void operator&=(const __bitset&) _NOEXCEPT {} 632 _LIBCPP_INLINE_VISIBILITY void operator|=(const __bitset&) _NOEXCEPT {} 633 _LIBCPP_INLINE_VISIBILITY void operator^=(const __bitset&) _NOEXCEPT {} 634 635 _LIBCPP_INLINE_VISIBILITY void flip() _NOEXCEPT {} 636 637 _LIBCPP_INLINE_VISIBILITY unsigned long to_ulong() const {return 0;} 638 _LIBCPP_INLINE_VISIBILITY unsigned long long to_ullong() const {return 0;} 639 640 _LIBCPP_INLINE_VISIBILITY bool all() const _NOEXCEPT {return true;} 641 _LIBCPP_INLINE_VISIBILITY bool any() const _NOEXCEPT {return false;} 642 643 _LIBCPP_INLINE_VISIBILITY size_t __hash_code() const _NOEXCEPT {return 0;} 644}; 645 646inline 647_LIBCPP_CONSTEXPR 648__bitset<0, 0>::__bitset() _NOEXCEPT 649{ 650} 651 652inline 653_LIBCPP_CONSTEXPR 654__bitset<0, 0>::__bitset(unsigned long long) _NOEXCEPT 655{ 656} 657 658template <size_t _Size> class _LIBCPP_TYPE_VIS_ONLY bitset; 659template <size_t _Size> struct _LIBCPP_TYPE_VIS_ONLY hash<bitset<_Size> >; 660 661template <size_t _Size> 662class _LIBCPP_TYPE_VIS_ONLY bitset 663 : private __bitset<_Size == 0 ? 0 : (_Size - 1) / (sizeof(size_t) * CHAR_BIT) + 1, _Size> 664{ 665public: 666 static const unsigned __n_words = _Size == 0 ? 0 : (_Size - 1) / (sizeof(size_t) * CHAR_BIT) + 1; 667 typedef __bitset<__n_words, _Size> base; 668 669public: 670 typedef typename base::reference reference; 671 typedef typename base::const_reference const_reference; 672 673 // 23.3.5.1 constructors: 674 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR bitset() _NOEXCEPT {} 675 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 676 bitset(unsigned long long __v) _NOEXCEPT : base(__v) {} 677 template<class _CharT> 678 explicit bitset(const _CharT* __str, 679 typename basic_string<_CharT>::size_type __n = basic_string<_CharT>::npos, 680 _CharT __zero = _CharT('0'), _CharT __one = _CharT('1')); 681 template<class _CharT, class _Traits, class _Allocator> 682 explicit bitset(const basic_string<_CharT,_Traits,_Allocator>& __str, 683 typename basic_string<_CharT,_Traits,_Allocator>::size_type __pos = 0, 684 typename basic_string<_CharT,_Traits,_Allocator>::size_type __n = 685 (basic_string<_CharT,_Traits,_Allocator>::npos), 686 _CharT __zero = _CharT('0'), _CharT __one = _CharT('1')); 687 688 // 23.3.5.2 bitset operations: 689 _LIBCPP_INLINE_VISIBILITY 690 bitset& operator&=(const bitset& __rhs) _NOEXCEPT; 691 _LIBCPP_INLINE_VISIBILITY 692 bitset& operator|=(const bitset& __rhs) _NOEXCEPT; 693 _LIBCPP_INLINE_VISIBILITY 694 bitset& operator^=(const bitset& __rhs) _NOEXCEPT; 695 bitset& operator<<=(size_t __pos) _NOEXCEPT; 696 bitset& operator>>=(size_t __pos) _NOEXCEPT; 697 _LIBCPP_INLINE_VISIBILITY 698 bitset& set() _NOEXCEPT; 699 bitset& set(size_t __pos, bool __val = true); 700 _LIBCPP_INLINE_VISIBILITY 701 bitset& reset() _NOEXCEPT; 702 bitset& reset(size_t __pos); 703 _LIBCPP_INLINE_VISIBILITY 704 bitset operator~() const _NOEXCEPT; 705 _LIBCPP_INLINE_VISIBILITY 706 bitset& flip() _NOEXCEPT; 707 bitset& flip(size_t __pos); 708 709 // element access: 710 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 711 const_reference operator[](size_t __p) const {return base::__make_ref(__p);} 712 _LIBCPP_INLINE_VISIBILITY reference operator[](size_t __p) {return base::__make_ref(__p);} 713 _LIBCPP_INLINE_VISIBILITY 714 unsigned long to_ulong() const; 715 _LIBCPP_INLINE_VISIBILITY 716 unsigned long long to_ullong() const; 717 template <class _CharT, class _Traits, class _Allocator> 718 basic_string<_CharT, _Traits, _Allocator> to_string(_CharT __zero = _CharT('0'), 719 _CharT __one = _CharT('1')) const; 720 template <class _CharT, class _Traits> 721 _LIBCPP_INLINE_VISIBILITY 722 basic_string<_CharT, _Traits, allocator<_CharT> > to_string(_CharT __zero = _CharT('0'), 723 _CharT __one = _CharT('1')) const; 724 template <class _CharT> 725 _LIBCPP_INLINE_VISIBILITY 726 basic_string<_CharT, char_traits<_CharT>, allocator<_CharT> > to_string(_CharT __zero = _CharT('0'), 727 _CharT __one = _CharT('1')) const; 728 _LIBCPP_INLINE_VISIBILITY 729 basic_string<char, char_traits<char>, allocator<char> > to_string(char __zero = '0', 730 char __one = '1') const; 731 _LIBCPP_INLINE_VISIBILITY 732 size_t count() const _NOEXCEPT; 733 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR size_t size() const _NOEXCEPT {return _Size;} 734 _LIBCPP_INLINE_VISIBILITY 735 bool operator==(const bitset& __rhs) const _NOEXCEPT; 736 _LIBCPP_INLINE_VISIBILITY 737 bool operator!=(const bitset& __rhs) const _NOEXCEPT; 738 bool test(size_t __pos) const; 739 _LIBCPP_INLINE_VISIBILITY 740 bool all() const _NOEXCEPT; 741 _LIBCPP_INLINE_VISIBILITY 742 bool any() const _NOEXCEPT; 743 _LIBCPP_INLINE_VISIBILITY bool none() const _NOEXCEPT {return !any();} 744 _LIBCPP_INLINE_VISIBILITY 745 bitset operator<<(size_t __pos) const _NOEXCEPT; 746 _LIBCPP_INLINE_VISIBILITY 747 bitset operator>>(size_t __pos) const _NOEXCEPT; 748 749private: 750 751 _LIBCPP_INLINE_VISIBILITY 752 size_t __hash_code() const _NOEXCEPT {return base::__hash_code();} 753 754 friend struct hash<bitset>; 755}; 756 757template <size_t _Size> 758template<class _CharT> 759bitset<_Size>::bitset(const _CharT* __str, 760 typename basic_string<_CharT>::size_type __n, 761 _CharT __zero, _CharT __one) 762{ 763 size_t __rlen = _VSTD::min(__n, char_traits<_CharT>::length(__str)); 764 for (size_t __i = 0; __i < __rlen; ++__i) 765 if (__str[__i] != __zero && __str[__i] != __one) 766#ifndef _LIBCPP_NO_EXCEPTIONS 767 throw invalid_argument("bitset string ctor has invalid argument"); 768#else 769 assert(!"bitset string ctor has invalid argument"); 770#endif 771 size_t _Mp = _VSTD::min(__rlen, _Size); 772 size_t __i = 0; 773 for (; __i < _Mp; ++__i) 774 { 775 _CharT __c = __str[_Mp - 1 - __i]; 776 if (__c == __zero) 777 (*this)[__i] = false; 778 else 779 (*this)[__i] = true; 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#ifndef _LIBCPP_NO_EXCEPTIONS 793 throw out_of_range("bitset string pos out of range"); 794#else 795 assert(!"bitset string pos out of range"); 796#endif 797 size_t __rlen = _VSTD::min(__n, __str.size() - __pos); 798 for (size_t __i = __pos; __i < __pos + __rlen; ++__i) 799 if (!_Traits::eq(__str[__i], __zero) && !_Traits::eq(__str[__i], __one)) 800#ifndef _LIBCPP_NO_EXCEPTIONS 801 throw invalid_argument("bitset string ctor has invalid argument"); 802#else 803 assert(!"bitset string ctor has invalid argument"); 804#endif 805 size_t _Mp = _VSTD::min(__rlen, _Size); 806 size_t __i = 0; 807 for (; __i < _Mp; ++__i) 808 { 809 _CharT __c = __str[__pos + _Mp - 1 - __i]; 810 if (_Traits::eq(__c, __zero)) 811 (*this)[__i] = false; 812 else 813 (*this)[__i] = true; 814 } 815 _VSTD::fill(base::__make_iter(__i), base::__make_iter(_Size), false); 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> 837inline 838bitset<_Size>& 839bitset<_Size>::operator^=(const bitset& __rhs) _NOEXCEPT 840{ 841 base::operator^=(__rhs); 842 return *this; 843} 844 845template <size_t _Size> 846bitset<_Size>& 847bitset<_Size>::operator<<=(size_t __pos) _NOEXCEPT 848{ 849 __pos = _VSTD::min(__pos, _Size); 850 _VSTD::copy_backward(base::__make_iter(0), base::__make_iter(_Size - __pos), base::__make_iter(_Size)); 851 _VSTD::fill_n(base::__make_iter(0), __pos, false); 852 return *this; 853} 854 855template <size_t _Size> 856bitset<_Size>& 857bitset<_Size>::operator>>=(size_t __pos) _NOEXCEPT 858{ 859 __pos = _VSTD::min(__pos, _Size); 860 _VSTD::copy(base::__make_iter(__pos), base::__make_iter(_Size), base::__make_iter(0)); 861 _VSTD::fill_n(base::__make_iter(_Size - __pos), __pos, false); 862 return *this; 863} 864 865template <size_t _Size> 866inline 867bitset<_Size>& 868bitset<_Size>::set() _NOEXCEPT 869{ 870 _VSTD::fill_n(base::__make_iter(0), _Size, true); 871 return *this; 872} 873 874template <size_t _Size> 875bitset<_Size>& 876bitset<_Size>::set(size_t __pos, bool __val) 877{ 878 if (__pos >= _Size) 879#ifndef _LIBCPP_NO_EXCEPTIONS 880 throw out_of_range("bitset set argument out of range"); 881#else 882 assert(!"bitset set argument out of range"); 883#endif 884 (*this)[__pos] = __val; 885 return *this; 886} 887 888template <size_t _Size> 889inline 890bitset<_Size>& 891bitset<_Size>::reset() _NOEXCEPT 892{ 893 _VSTD::fill_n(base::__make_iter(0), _Size, false); 894 return *this; 895} 896 897template <size_t _Size> 898bitset<_Size>& 899bitset<_Size>::reset(size_t __pos) 900{ 901 if (__pos >= _Size) 902#ifndef _LIBCPP_NO_EXCEPTIONS 903 throw out_of_range("bitset reset argument out of range"); 904#else 905 assert(!"bitset reset argument out of range"); 906#endif 907 (*this)[__pos] = false; 908 return *this; 909} 910 911template <size_t _Size> 912inline 913bitset<_Size> 914bitset<_Size>::operator~() const _NOEXCEPT 915{ 916 bitset __x(*this); 917 __x.flip(); 918 return __x; 919} 920 921template <size_t _Size> 922inline 923bitset<_Size>& 924bitset<_Size>::flip() _NOEXCEPT 925{ 926 base::flip(); 927 return *this; 928} 929 930template <size_t _Size> 931bitset<_Size>& 932bitset<_Size>::flip(size_t __pos) 933{ 934 if (__pos >= _Size) 935#ifndef _LIBCPP_NO_EXCEPTIONS 936 throw out_of_range("bitset flip argument out of range"); 937#else 938 assert(!"bitset flip argument out of range"); 939#endif 940 reference r = base::__make_ref(__pos); 941 r = ~r; 942 return *this; 943} 944 945template <size_t _Size> 946inline 947unsigned long 948bitset<_Size>::to_ulong() const 949{ 950 return base::to_ulong(); 951} 952 953template <size_t _Size> 954inline 955unsigned long long 956bitset<_Size>::to_ullong() const 957{ 958 return base::to_ullong(); 959} 960 961template <size_t _Size> 962template <class _CharT, class _Traits, class _Allocator> 963basic_string<_CharT, _Traits, _Allocator> 964bitset<_Size>::to_string(_CharT __zero, _CharT __one) const 965{ 966 basic_string<_CharT, _Traits, _Allocator> __r(_Size, __zero); 967 for (size_t __i = 0; __i < _Size; ++__i) 968 { 969 if ((*this)[__i]) 970 __r[_Size - 1 - __i] = __one; 971 } 972 return __r; 973} 974 975template <size_t _Size> 976template <class _CharT, class _Traits> 977inline 978basic_string<_CharT, _Traits, allocator<_CharT> > 979bitset<_Size>::to_string(_CharT __zero, _CharT __one) const 980{ 981 return to_string<_CharT, _Traits, allocator<_CharT> >(__zero, __one); 982} 983 984template <size_t _Size> 985template <class _CharT> 986inline 987basic_string<_CharT, char_traits<_CharT>, allocator<_CharT> > 988bitset<_Size>::to_string(_CharT __zero, _CharT __one) const 989{ 990 return to_string<_CharT, char_traits<_CharT>, allocator<_CharT> >(__zero, __one); 991} 992 993template <size_t _Size> 994inline 995basic_string<char, char_traits<char>, allocator<char> > 996bitset<_Size>::to_string(char __zero, char __one) const 997{ 998 return to_string<char, char_traits<char>, allocator<char> >(__zero, __one); 999} 1000 1001template <size_t _Size> 1002inline 1003size_t 1004bitset<_Size>::count() const _NOEXCEPT 1005{ 1006 return static_cast<size_t>(_VSTD::count(base::__make_iter(0), base::__make_iter(_Size), true)); 1007} 1008 1009template <size_t _Size> 1010inline 1011bool 1012bitset<_Size>::operator==(const bitset& __rhs) const _NOEXCEPT 1013{ 1014 return _VSTD::equal(base::__make_iter(0), base::__make_iter(_Size), __rhs.__make_iter(0)); 1015} 1016 1017template <size_t _Size> 1018inline 1019bool 1020bitset<_Size>::operator!=(const bitset& __rhs) const _NOEXCEPT 1021{ 1022 return !(*this == __rhs); 1023} 1024 1025template <size_t _Size> 1026bool 1027bitset<_Size>::test(size_t __pos) const 1028{ 1029 if (__pos >= _Size) 1030#ifndef _LIBCPP_NO_EXCEPTIONS 1031 throw out_of_range("bitset test argument out of range"); 1032#else 1033 assert(!"bitset test argument out of range"); 1034#endif 1035 return (*this)[__pos]; 1036} 1037 1038template <size_t _Size> 1039inline 1040bool 1041bitset<_Size>::all() const _NOEXCEPT 1042{ 1043 return base::all(); 1044} 1045 1046template <size_t _Size> 1047inline 1048bool 1049bitset<_Size>::any() const _NOEXCEPT 1050{ 1051 return base::any(); 1052} 1053 1054template <size_t _Size> 1055inline 1056bitset<_Size> 1057bitset<_Size>::operator<<(size_t __pos) const _NOEXCEPT 1058{ 1059 bitset __r = *this; 1060 __r <<= __pos; 1061 return __r; 1062} 1063 1064template <size_t _Size> 1065inline 1066bitset<_Size> 1067bitset<_Size>::operator>>(size_t __pos) const _NOEXCEPT 1068{ 1069 bitset __r = *this; 1070 __r >>= __pos; 1071 return __r; 1072} 1073 1074template <size_t _Size> 1075inline _LIBCPP_INLINE_VISIBILITY 1076bitset<_Size> 1077operator&(const bitset<_Size>& __x, const bitset<_Size>& __y) _NOEXCEPT 1078{ 1079 bitset<_Size> __r = __x; 1080 __r &= __y; 1081 return __r; 1082} 1083 1084template <size_t _Size> 1085inline _LIBCPP_INLINE_VISIBILITY 1086bitset<_Size> 1087operator|(const bitset<_Size>& __x, const bitset<_Size>& __y) _NOEXCEPT 1088{ 1089 bitset<_Size> __r = __x; 1090 __r |= __y; 1091 return __r; 1092} 1093 1094template <size_t _Size> 1095inline _LIBCPP_INLINE_VISIBILITY 1096bitset<_Size> 1097operator^(const bitset<_Size>& __x, const bitset<_Size>& __y) _NOEXCEPT 1098{ 1099 bitset<_Size> __r = __x; 1100 __r ^= __y; 1101 return __r; 1102} 1103 1104template <size_t _Size> 1105struct _LIBCPP_TYPE_VIS_ONLY hash<bitset<_Size> > 1106 : public unary_function<bitset<_Size>, size_t> 1107{ 1108 _LIBCPP_INLINE_VISIBILITY 1109 size_t operator()(const bitset<_Size>& __bs) const _NOEXCEPT 1110 {return __bs.__hash_code();} 1111}; 1112 1113template <class _CharT, class _Traits, size_t _Size> 1114basic_istream<_CharT, _Traits>& 1115operator>>(basic_istream<_CharT, _Traits>& __is, bitset<_Size>& __x); 1116 1117template <class _CharT, class _Traits, size_t _Size> 1118basic_ostream<_CharT, _Traits>& 1119operator<<(basic_ostream<_CharT, _Traits>& __os, const bitset<_Size>& __x); 1120 1121_LIBCPP_END_NAMESPACE_STD 1122 1123#endif // _LIBCPP_BITSET 1124