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