bitset revision 232924
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; 151protected: 152 typedef __bitset __self; 153 typedef size_type __storage_type; 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 class __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 __bitset() _NOEXCEPT; 172 explicit __bitset(unsigned long long __v) _NOEXCEPT; 173 174 _LIBCPP_INLINE_VISIBILITY reference __make_ref(size_t __pos) _NOEXCEPT 175 {return reference(__first_ + __pos / __bits_per_word, __storage_type(1) << __pos % __bits_per_word);} 176 _LIBCPP_INLINE_VISIBILITY const_reference __make_ref(size_t __pos) const _NOEXCEPT 177 {return const_reference(__first_ + __pos / __bits_per_word, __storage_type(1) << __pos % __bits_per_word);} 178 _LIBCPP_INLINE_VISIBILITY iterator __make_iter(size_t __pos) _NOEXCEPT 179 {return iterator(__first_ + __pos / __bits_per_word, __pos % __bits_per_word);} 180 _LIBCPP_INLINE_VISIBILITY const_iterator __make_iter(size_t __pos) const _NOEXCEPT 181 {return const_iterator(__first_ + __pos / __bits_per_word, __pos % __bits_per_word);} 182 183 void operator&=(const __bitset& __v) _NOEXCEPT; 184 void operator|=(const __bitset& __v) _NOEXCEPT; 185 void operator^=(const __bitset& __v) _NOEXCEPT; 186 187 void flip() _NOEXCEPT; 188 _LIBCPP_INLINE_VISIBILITY unsigned long to_ulong() const 189 {return to_ulong(integral_constant<bool, _Size < sizeof(unsigned long) * CHAR_BIT>());} 190 _LIBCPP_INLINE_VISIBILITY unsigned long long to_ullong() const 191 {return to_ullong(integral_constant<bool, _Size < sizeof(unsigned long long) * CHAR_BIT>());} 192 193 bool all() const _NOEXCEPT; 194 bool any() const _NOEXCEPT; 195 size_t __hash_code() const _NOEXCEPT; 196private: 197 void __init(unsigned long long __v, false_type) _NOEXCEPT; 198 void __init(unsigned long long __v, true_type) _NOEXCEPT; 199 unsigned long to_ulong(false_type) const; 200 unsigned long to_ulong(true_type) const; 201 unsigned long long to_ullong(false_type) const; 202 unsigned long long to_ullong(true_type) const; 203 unsigned long long to_ullong(true_type, false_type) const; 204 unsigned long long to_ullong(true_type, true_type) const; 205}; 206 207template <size_t _N_words, size_t _Size> 208inline _LIBCPP_INLINE_VISIBILITY 209__bitset<_N_words, _Size>::__bitset() _NOEXCEPT 210{ 211 _VSTD::fill_n(__first_, _N_words, __storage_type(0)); 212} 213 214template <size_t _N_words, size_t _Size> 215void 216__bitset<_N_words, _Size>::__init(unsigned long long __v, false_type) _NOEXCEPT 217{ 218 __storage_type __t[sizeof(unsigned long long) / sizeof(__storage_type)]; 219 for (size_t __i = 0; __i < sizeof(__t)/sizeof(__t[0]); ++__i, __v >>= __bits_per_word) 220 __t[__i] = static_cast<__storage_type>(__v); 221 _VSTD::copy(__t, __t + sizeof(__t)/sizeof(__t[0]), __first_); 222 _VSTD::fill(__first_ + sizeof(__t)/sizeof(__t[0]), __first_ + sizeof(__first_)/sizeof(__first_[0]), 223 __storage_type(0)); 224} 225 226template <size_t _N_words, size_t _Size> 227inline _LIBCPP_INLINE_VISIBILITY 228void 229__bitset<_N_words, _Size>::__init(unsigned long long __v, true_type) _NOEXCEPT 230{ 231 __first_[0] = __v; 232 _VSTD::fill(__first_ + 1, __first_ + sizeof(__first_)/sizeof(__first_[0]), __storage_type(0)); 233} 234 235template <size_t _N_words, size_t _Size> 236inline _LIBCPP_INLINE_VISIBILITY 237__bitset<_N_words, _Size>::__bitset(unsigned long long __v) _NOEXCEPT 238{ 239 __init(__v, integral_constant<bool, sizeof(unsigned long long) == sizeof(__storage_type)>()); 240} 241 242template <size_t _N_words, size_t _Size> 243inline _LIBCPP_INLINE_VISIBILITY 244void 245__bitset<_N_words, _Size>::operator&=(const __bitset& __v) _NOEXCEPT 246{ 247 for (size_type __i = 0; __i < _N_words; ++__i) 248 __first_[__i] &= __v.__first_[__i]; 249} 250 251template <size_t _N_words, size_t _Size> 252inline _LIBCPP_INLINE_VISIBILITY 253void 254__bitset<_N_words, _Size>::operator|=(const __bitset& __v) _NOEXCEPT 255{ 256 for (size_type __i = 0; __i < _N_words; ++__i) 257 __first_[__i] |= __v.__first_[__i]; 258} 259 260template <size_t _N_words, size_t _Size> 261inline _LIBCPP_INLINE_VISIBILITY 262void 263__bitset<_N_words, _Size>::operator^=(const __bitset& __v) _NOEXCEPT 264{ 265 for (size_type __i = 0; __i < _N_words; ++__i) 266 __first_[__i] ^= __v.__first_[__i]; 267} 268 269template <size_t _N_words, size_t _Size> 270void 271__bitset<_N_words, _Size>::flip() _NOEXCEPT 272{ 273 // do middle whole words 274 size_type __n = _Size; 275 __storage_pointer __p = __first_; 276 for (; __n >= __bits_per_word; ++__p, __n -= __bits_per_word) 277 *__p = ~*__p; 278 // do last partial word 279 if (__n > 0) 280 { 281 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n); 282 __storage_type __b = *__p & __m; 283 *__p &= ~__m; 284 *__p |= ~__b & __m; 285 } 286} 287 288template <size_t _N_words, size_t _Size> 289unsigned long 290__bitset<_N_words, _Size>::to_ulong(false_type) const 291{ 292 const_iterator __e = __make_iter(_Size); 293 const_iterator __i = _VSTD::find(__make_iter(sizeof(unsigned long) * CHAR_BIT), __e, true); 294 if (__i != __e) 295#ifndef _LIBCPP_NO_EXCEPTIONS 296 throw overflow_error("bitset to_ulong overflow error"); 297#else 298 assert(!"bitset to_ulong overflow error"); 299#endif 300 return __first_[0]; 301} 302 303template <size_t _N_words, size_t _Size> 304inline _LIBCPP_INLINE_VISIBILITY 305unsigned long 306__bitset<_N_words, _Size>::to_ulong(true_type) const 307{ 308 return __first_[0]; 309} 310 311template <size_t _N_words, size_t _Size> 312unsigned long long 313__bitset<_N_words, _Size>::to_ullong(false_type) const 314{ 315 const_iterator __e = __make_iter(_Size); 316 const_iterator __i = _VSTD::find(__make_iter(sizeof(unsigned long long) * CHAR_BIT), __e, true); 317 if (__i != __e) 318#ifndef _LIBCPP_NO_EXCEPTIONS 319 throw overflow_error("bitset to_ullong overflow error"); 320#else 321 assert(!"bitset to_ullong overflow error"); 322#endif 323 return to_ullong(true_type()); 324} 325 326template <size_t _N_words, size_t _Size> 327inline _LIBCPP_INLINE_VISIBILITY 328unsigned long long 329__bitset<_N_words, _Size>::to_ullong(true_type) const 330{ 331 return to_ullong(true_type(), integral_constant<bool, sizeof(__storage_type) < sizeof(unsigned long long)>()); 332} 333 334template <size_t _N_words, size_t _Size> 335inline _LIBCPP_INLINE_VISIBILITY 336unsigned long long 337__bitset<_N_words, _Size>::to_ullong(true_type, false_type) const 338{ 339 return __first_[0]; 340} 341 342template <size_t _N_words, size_t _Size> 343unsigned long long 344__bitset<_N_words, _Size>::to_ullong(true_type, true_type) const 345{ 346 unsigned long long __r = __first_[0]; 347 for (std::size_t __i = 1; __i < sizeof(unsigned long long) / sizeof(__storage_type); ++__i) 348 __r |= static_cast<unsigned long long>(__first_[__i]) << (sizeof(__storage_type) * CHAR_BIT); 349 return __r; 350} 351 352template <size_t _N_words, size_t _Size> 353bool 354__bitset<_N_words, _Size>::all() const _NOEXCEPT 355{ 356 // do middle whole words 357 size_type __n = _Size; 358 __const_storage_pointer __p = __first_; 359 for (; __n >= __bits_per_word; ++__p, __n -= __bits_per_word) 360 if (~*__p) 361 return false; 362 // do last partial word 363 if (__n > 0) 364 { 365 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n); 366 if (~*__p & __m) 367 return false; 368 } 369 return true; 370} 371 372template <size_t _N_words, size_t _Size> 373bool 374__bitset<_N_words, _Size>::any() const _NOEXCEPT 375{ 376 // do middle whole words 377 size_type __n = _Size; 378 __const_storage_pointer __p = __first_; 379 for (; __n >= __bits_per_word; ++__p, __n -= __bits_per_word) 380 if (*__p) 381 return true; 382 // do last partial word 383 if (__n > 0) 384 { 385 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n); 386 if (*__p & __m) 387 return true; 388 } 389 return false; 390} 391 392template <size_t _N_words, size_t _Size> 393inline _LIBCPP_INLINE_VISIBILITY 394size_t 395__bitset<_N_words, _Size>::__hash_code() const _NOEXCEPT 396{ 397 size_t __h = 0; 398 for (size_type __i = 0; __i < _N_words; ++__i) 399 __h ^= __first_[__i]; 400 return __h; 401} 402 403template <size_t _Size> 404class __bitset<1, _Size> 405{ 406public: 407 typedef ptrdiff_t difference_type; 408 typedef size_t size_type; 409protected: 410 typedef __bitset __self; 411 typedef size_type __storage_type; 412 typedef __storage_type* __storage_pointer; 413 typedef const __storage_type* __const_storage_pointer; 414 static const unsigned __bits_per_word = static_cast<unsigned>(sizeof(__storage_type) * CHAR_BIT); 415 416 friend class __bit_reference<__bitset>; 417 friend class __bit_const_reference<__bitset>; 418 friend class __bit_iterator<__bitset, false>; 419 friend class __bit_iterator<__bitset, true>; 420 friend class __bit_array<__bitset>; 421 422 __storage_type __first_; 423 424 typedef __bit_reference<__bitset> reference; 425 typedef __bit_const_reference<__bitset> const_reference; 426 typedef __bit_iterator<__bitset, false> iterator; 427 typedef __bit_iterator<__bitset, true> const_iterator; 428 429 __bitset() _NOEXCEPT; 430 explicit __bitset(unsigned long long __v) _NOEXCEPT; 431 432 _LIBCPP_INLINE_VISIBILITY reference __make_ref(size_t __pos) _NOEXCEPT 433 {return reference(&__first_, __storage_type(1) << __pos);} 434 _LIBCPP_INLINE_VISIBILITY const_reference __make_ref(size_t __pos) const _NOEXCEPT 435 {return const_reference(&__first_, __storage_type(1) << __pos);} 436 _LIBCPP_INLINE_VISIBILITY iterator __make_iter(size_t __pos) _NOEXCEPT 437 {return iterator(&__first_ + __pos / __bits_per_word, __pos % __bits_per_word);} 438 _LIBCPP_INLINE_VISIBILITY const_iterator __make_iter(size_t __pos) const _NOEXCEPT 439 {return const_iterator(&__first_ + __pos / __bits_per_word, __pos % __bits_per_word);} 440 441 void operator&=(const __bitset& __v) _NOEXCEPT; 442 void operator|=(const __bitset& __v) _NOEXCEPT; 443 void operator^=(const __bitset& __v) _NOEXCEPT; 444 445 void flip() _NOEXCEPT; 446 447 unsigned long to_ulong() const; 448 unsigned long long to_ullong() const; 449 450 bool all() const _NOEXCEPT; 451 bool any() const _NOEXCEPT; 452 453 size_t __hash_code() const _NOEXCEPT; 454}; 455 456template <size_t _Size> 457inline _LIBCPP_INLINE_VISIBILITY 458__bitset<1, _Size>::__bitset() _NOEXCEPT 459 : __first_(0) 460{ 461} 462 463template <size_t _Size> 464inline _LIBCPP_INLINE_VISIBILITY 465__bitset<1, _Size>::__bitset(unsigned long long __v) _NOEXCEPT 466 : __first_(static_cast<__storage_type>(__v)) 467{ 468} 469 470template <size_t _Size> 471inline _LIBCPP_INLINE_VISIBILITY 472void 473__bitset<1, _Size>::operator&=(const __bitset& __v) _NOEXCEPT 474{ 475 __first_ &= __v.__first_; 476} 477 478template <size_t _Size> 479inline _LIBCPP_INLINE_VISIBILITY 480void 481__bitset<1, _Size>::operator|=(const __bitset& __v) _NOEXCEPT 482{ 483 __first_ |= __v.__first_; 484} 485 486template <size_t _Size> 487inline _LIBCPP_INLINE_VISIBILITY 488void 489__bitset<1, _Size>::operator^=(const __bitset& __v) _NOEXCEPT 490{ 491 __first_ ^= __v.__first_; 492} 493 494template <size_t _Size> 495inline _LIBCPP_INLINE_VISIBILITY 496void 497__bitset<1, _Size>::flip() _NOEXCEPT 498{ 499 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - _Size); 500 __first_ = ~__first_; 501 __first_ &= __m; 502} 503 504template <size_t _Size> 505inline _LIBCPP_INLINE_VISIBILITY 506unsigned long 507__bitset<1, _Size>::to_ulong() const 508{ 509 return __first_; 510} 511 512template <size_t _Size> 513inline _LIBCPP_INLINE_VISIBILITY 514unsigned long long 515__bitset<1, _Size>::to_ullong() const 516{ 517 return __first_; 518} 519 520template <size_t _Size> 521inline _LIBCPP_INLINE_VISIBILITY 522bool 523__bitset<1, _Size>::all() const _NOEXCEPT 524{ 525 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - _Size); 526 return !(~__first_ & __m); 527} 528 529template <size_t _Size> 530inline _LIBCPP_INLINE_VISIBILITY 531bool 532__bitset<1, _Size>::any() const _NOEXCEPT 533{ 534 __storage_type __m = ~__storage_type(0) >> (__bits_per_word - _Size); 535 return __first_ & __m; 536} 537 538template <size_t _Size> 539inline _LIBCPP_INLINE_VISIBILITY 540size_t 541__bitset<1, _Size>::__hash_code() const _NOEXCEPT 542{ 543 return __first_; 544} 545 546template <> 547class __bitset<0, 0> 548{ 549public: 550 typedef ptrdiff_t difference_type; 551 typedef size_t size_type; 552protected: 553 typedef __bitset __self; 554 typedef size_type __storage_type; 555 typedef __storage_type* __storage_pointer; 556 typedef const __storage_type* __const_storage_pointer; 557 static const unsigned __bits_per_word = static_cast<unsigned>(sizeof(__storage_type) * CHAR_BIT); 558 559 friend class __bit_reference<__bitset>; 560 friend class __bit_const_reference<__bitset>; 561 friend class __bit_iterator<__bitset, false>; 562 friend class __bit_iterator<__bitset, true>; 563 friend struct __bit_array<__bitset>; 564 565 typedef __bit_reference<__bitset> reference; 566 typedef __bit_const_reference<__bitset> const_reference; 567 typedef __bit_iterator<__bitset, false> iterator; 568 typedef __bit_iterator<__bitset, true> const_iterator; 569 570 __bitset() _NOEXCEPT; 571 explicit __bitset(unsigned long long) _NOEXCEPT; 572 573 _LIBCPP_INLINE_VISIBILITY reference __make_ref(size_t) _NOEXCEPT 574 {return reference(0, 1);} 575 _LIBCPP_INLINE_VISIBILITY const_reference __make_ref(size_t) const _NOEXCEPT 576 {return const_reference(0, 1);} 577 _LIBCPP_INLINE_VISIBILITY iterator __make_iter(size_t) _NOEXCEPT 578 {return iterator(0, 0);} 579 _LIBCPP_INLINE_VISIBILITY const_iterator __make_iter(size_t) const _NOEXCEPT 580 {return const_iterator(0, 0);} 581 582 _LIBCPP_INLINE_VISIBILITY void operator&=(const __bitset&) _NOEXCEPT {} 583 _LIBCPP_INLINE_VISIBILITY void operator|=(const __bitset&) _NOEXCEPT {} 584 _LIBCPP_INLINE_VISIBILITY void operator^=(const __bitset&) _NOEXCEPT {} 585 586 _LIBCPP_INLINE_VISIBILITY void flip() _NOEXCEPT {} 587 588 _LIBCPP_INLINE_VISIBILITY unsigned long to_ulong() const {return 0;} 589 _LIBCPP_INLINE_VISIBILITY unsigned long long to_ullong() const {return 0;} 590 591 _LIBCPP_INLINE_VISIBILITY bool all() const _NOEXCEPT {return true;} 592 _LIBCPP_INLINE_VISIBILITY bool any() const _NOEXCEPT {return false;} 593 594 _LIBCPP_INLINE_VISIBILITY size_t __hash_code() const _NOEXCEPT {return 0;} 595}; 596 597inline _LIBCPP_INLINE_VISIBILITY 598__bitset<0, 0>::__bitset() _NOEXCEPT 599{ 600} 601 602inline _LIBCPP_INLINE_VISIBILITY 603__bitset<0, 0>::__bitset(unsigned long long) _NOEXCEPT 604{ 605} 606 607template <size_t _Size> class bitset; 608template <size_t _Size> struct hash<bitset<_Size> >; 609 610template <size_t _Size> 611class _LIBCPP_VISIBLE bitset 612 : private __bitset<_Size == 0 ? 0 : (_Size - 1) / (sizeof(size_t) * CHAR_BIT) + 1, _Size> 613{ 614 static const unsigned __n_words = _Size == 0 ? 0 : (_Size - 1) / (sizeof(size_t) * CHAR_BIT) + 1; 615 typedef __bitset<__n_words, _Size> base; 616 617public: 618 typedef typename base::reference reference; 619 typedef typename base::const_reference const_reference; 620 621 // 23.3.5.1 constructors: 622 /*constexpr*/ _LIBCPP_INLINE_VISIBILITY bitset() _NOEXCEPT {} 623 /*constexpr*/ _LIBCPP_INLINE_VISIBILITY bitset(unsigned long long __v) _NOEXCEPT : base(__v) {} 624 template<class _CharT> 625 explicit bitset(const _CharT* __str, 626 typename basic_string<_CharT>::size_type __n = basic_string<_CharT>::npos, 627 _CharT __zero = _CharT('0'), _CharT __one = _CharT('1')); 628 template<class _CharT, class _Traits, class _Allocator> 629 explicit bitset(const basic_string<_CharT,_Traits,_Allocator>& __str, 630 typename basic_string<_CharT,_Traits,_Allocator>::size_type __pos = 0, 631 typename basic_string<_CharT,_Traits,_Allocator>::size_type __n = 632 (basic_string<_CharT,_Traits,_Allocator>::npos), 633 _CharT __zero = _CharT('0'), _CharT __one = _CharT('1')); 634 635 // 23.3.5.2 bitset operations: 636 bitset& operator&=(const bitset& __rhs) _NOEXCEPT; 637 bitset& operator|=(const bitset& __rhs) _NOEXCEPT; 638 bitset& operator^=(const bitset& __rhs) _NOEXCEPT; 639 bitset& operator<<=(size_t __pos) _NOEXCEPT; 640 bitset& operator>>=(size_t __pos) _NOEXCEPT; 641 bitset& set() _NOEXCEPT; 642 bitset& set(size_t __pos, bool __val = true); 643 bitset& reset() _NOEXCEPT; 644 bitset& reset(size_t __pos); 645 bitset operator~() const _NOEXCEPT; 646 bitset& flip() _NOEXCEPT; 647 bitset& flip(size_t __pos); 648 649 // element access: 650 _LIBCPP_INLINE_VISIBILITY const_reference operator[](size_t __p) const {return base::__make_ref(__p);} 651 _LIBCPP_INLINE_VISIBILITY reference operator[](size_t __p) {return base::__make_ref(__p);} 652 unsigned long to_ulong() const; 653 unsigned long long to_ullong() const; 654 template <class _CharT, class _Traits, class _Allocator> 655 basic_string<_CharT, _Traits, _Allocator> to_string(_CharT __zero = _CharT('0'), 656 _CharT __one = _CharT('1')) const; 657 template <class _CharT, class _Traits> 658 basic_string<_CharT, _Traits, allocator<_CharT> > to_string(_CharT __zero = _CharT('0'), 659 _CharT __one = _CharT('1')) const; 660 template <class _CharT> 661 basic_string<_CharT, char_traits<_CharT>, allocator<_CharT> > to_string(_CharT __zero = _CharT('0'), 662 _CharT __one = _CharT('1')) const; 663 basic_string<char, char_traits<char>, allocator<char> > to_string(char __zero = '0', 664 char __one = '1') const; 665 size_t count() const _NOEXCEPT; 666 /*constexpr*/ _LIBCPP_INLINE_VISIBILITY size_t size() const _NOEXCEPT {return _Size;} 667 bool operator==(const bitset& __rhs) const _NOEXCEPT; 668 bool operator!=(const bitset& __rhs) const _NOEXCEPT; 669 bool test(size_t __pos) const; 670 bool all() const _NOEXCEPT; 671 bool any() const _NOEXCEPT; 672 _LIBCPP_INLINE_VISIBILITY bool none() const _NOEXCEPT {return !any();} 673 bitset operator<<(size_t __pos) const _NOEXCEPT; 674 bitset operator>>(size_t __pos) const _NOEXCEPT; 675 676private: 677 678 _LIBCPP_INLINE_VISIBILITY 679 size_t __hash_code() const _NOEXCEPT {return base::__hash_code();} 680 681 friend struct hash<bitset>; 682}; 683 684template <size_t _Size> 685template<class _CharT> 686bitset<_Size>::bitset(const _CharT* __str, 687 typename basic_string<_CharT>::size_type __n, 688 _CharT __zero, _CharT __one) 689{ 690 size_t __rlen = _VSTD::min(__n, char_traits<_CharT>::length(__str)); 691 for (size_t __i = 0; __i < __rlen; ++__i) 692 if (__str[__i] != __zero && __str[__i] != __one) 693#ifndef _LIBCPP_NO_EXCEPTIONS 694 throw invalid_argument("bitset string ctor has invalid argument"); 695#else 696 assert(!"bitset string ctor has invalid argument"); 697#endif 698 size_t _Mp = _VSTD::min(__rlen, _Size); 699 size_t __i = 0; 700 for (; __i < _Mp; ++__i) 701 { 702 _CharT __c = __str[_Mp - 1 - __i]; 703 if (__c == __zero) 704 (*this)[__i] = false; 705 else 706 (*this)[__i] = true; 707 } 708 _VSTD::fill(base::__make_iter(__i), base::__make_iter(_Size), false); 709} 710 711template <size_t _Size> 712template<class _CharT, class _Traits, class _Allocator> 713bitset<_Size>::bitset(const basic_string<_CharT,_Traits,_Allocator>& __str, 714 typename basic_string<_CharT,_Traits,_Allocator>::size_type __pos, 715 typename basic_string<_CharT,_Traits,_Allocator>::size_type __n, 716 _CharT __zero, _CharT __one) 717{ 718 if (__pos > __str.size()) 719#ifndef _LIBCPP_NO_EXCEPTIONS 720 throw out_of_range("bitset string pos out of range"); 721#else 722 assert(!"bitset string pos out of range"); 723#endif 724 size_t __rlen = _VSTD::min(__n, __str.size() - __pos); 725 for (size_t __i = __pos; __i < __pos + __rlen; ++__i) 726 if (!_Traits::eq(__str[__i], __zero) && !_Traits::eq(__str[__i], __one)) 727#ifndef _LIBCPP_NO_EXCEPTIONS 728 throw invalid_argument("bitset string ctor has invalid argument"); 729#else 730 assert(!"bitset string ctor has invalid argument"); 731#endif 732 size_t _Mp = _VSTD::min(__rlen, _Size); 733 size_t __i = 0; 734 for (; __i < _Mp; ++__i) 735 { 736 _CharT __c = __str[__pos + _Mp - 1 - __i]; 737 if (_Traits::eq(__c, __zero)) 738 (*this)[__i] = false; 739 else 740 (*this)[__i] = true; 741 } 742 _VSTD::fill(base::__make_iter(__i), base::__make_iter(_Size), false); 743} 744 745template <size_t _Size> 746inline _LIBCPP_INLINE_VISIBILITY 747bitset<_Size>& 748bitset<_Size>::operator&=(const bitset& __rhs) _NOEXCEPT 749{ 750 base::operator&=(__rhs); 751 return *this; 752} 753 754template <size_t _Size> 755inline _LIBCPP_INLINE_VISIBILITY 756bitset<_Size>& 757bitset<_Size>::operator|=(const bitset& __rhs) _NOEXCEPT 758{ 759 base::operator|=(__rhs); 760 return *this; 761} 762 763template <size_t _Size> 764inline _LIBCPP_INLINE_VISIBILITY 765bitset<_Size>& 766bitset<_Size>::operator^=(const bitset& __rhs) _NOEXCEPT 767{ 768 base::operator^=(__rhs); 769 return *this; 770} 771 772template <size_t _Size> 773bitset<_Size>& 774bitset<_Size>::operator<<=(size_t __pos) _NOEXCEPT 775{ 776 __pos = _VSTD::min(__pos, _Size); 777 _VSTD::copy_backward(base::__make_iter(0), base::__make_iter(_Size - __pos), base::__make_iter(_Size)); 778 _VSTD::fill_n(base::__make_iter(0), __pos, false); 779 return *this; 780} 781 782template <size_t _Size> 783bitset<_Size>& 784bitset<_Size>::operator>>=(size_t __pos) _NOEXCEPT 785{ 786 __pos = _VSTD::min(__pos, _Size); 787 _VSTD::copy(base::__make_iter(__pos), base::__make_iter(_Size), base::__make_iter(0)); 788 _VSTD::fill_n(base::__make_iter(_Size - __pos), __pos, false); 789 return *this; 790} 791 792template <size_t _Size> 793inline _LIBCPP_INLINE_VISIBILITY 794bitset<_Size>& 795bitset<_Size>::set() _NOEXCEPT 796{ 797 _VSTD::fill_n(base::__make_iter(0), _Size, true); 798 return *this; 799} 800 801template <size_t _Size> 802bitset<_Size>& 803bitset<_Size>::set(size_t __pos, bool __val) 804{ 805 if (__pos >= _Size) 806#ifndef _LIBCPP_NO_EXCEPTIONS 807 throw out_of_range("bitset set argument out of range"); 808#else 809 assert(!"bitset set argument out of range"); 810#endif 811 (*this)[__pos] = __val; 812 return *this; 813} 814 815template <size_t _Size> 816inline _LIBCPP_INLINE_VISIBILITY 817bitset<_Size>& 818bitset<_Size>::reset() _NOEXCEPT 819{ 820 _VSTD::fill_n(base::__make_iter(0), _Size, false); 821 return *this; 822} 823 824template <size_t _Size> 825bitset<_Size>& 826bitset<_Size>::reset(size_t __pos) 827{ 828 if (__pos >= _Size) 829#ifndef _LIBCPP_NO_EXCEPTIONS 830 throw out_of_range("bitset reset argument out of range"); 831#else 832 assert(!"bitset reset argument out of range"); 833#endif 834 (*this)[__pos] = false; 835 return *this; 836} 837 838template <size_t _Size> 839inline _LIBCPP_INLINE_VISIBILITY 840bitset<_Size> 841bitset<_Size>::operator~() const _NOEXCEPT 842{ 843 bitset __x(*this); 844 __x.flip(); 845 return __x; 846} 847 848template <size_t _Size> 849inline _LIBCPP_INLINE_VISIBILITY 850bitset<_Size>& 851bitset<_Size>::flip() _NOEXCEPT 852{ 853 base::flip(); 854 return *this; 855} 856 857template <size_t _Size> 858bitset<_Size>& 859bitset<_Size>::flip(size_t __pos) 860{ 861 if (__pos >= _Size) 862#ifndef _LIBCPP_NO_EXCEPTIONS 863 throw out_of_range("bitset flip argument out of range"); 864#else 865 assert(!"bitset flip argument out of range"); 866#endif 867 reference r = base::__make_ref(__pos); 868 r = ~r; 869 return *this; 870} 871 872template <size_t _Size> 873inline _LIBCPP_INLINE_VISIBILITY 874unsigned long 875bitset<_Size>::to_ulong() const 876{ 877 return base::to_ulong(); 878} 879 880template <size_t _Size> 881inline _LIBCPP_INLINE_VISIBILITY 882unsigned long long 883bitset<_Size>::to_ullong() const 884{ 885 return base::to_ullong(); 886} 887 888template <size_t _Size> 889template <class _CharT, class _Traits, class _Allocator> 890basic_string<_CharT, _Traits, _Allocator> 891bitset<_Size>::to_string(_CharT __zero, _CharT __one) const 892{ 893 basic_string<_CharT, _Traits, _Allocator> __r(_Size, __zero); 894 for (size_t __i = 0; __i < _Size; ++__i) 895 { 896 if ((*this)[__i]) 897 __r[_Size - 1 - __i] = __one; 898 } 899 return __r; 900} 901 902template <size_t _Size> 903template <class _CharT, class _Traits> 904inline _LIBCPP_INLINE_VISIBILITY 905basic_string<_CharT, _Traits, allocator<_CharT> > 906bitset<_Size>::to_string(_CharT __zero, _CharT __one) const 907{ 908 return to_string<_CharT, _Traits, allocator<_CharT> >(__zero, __one); 909} 910 911template <size_t _Size> 912template <class _CharT> 913inline _LIBCPP_INLINE_VISIBILITY 914basic_string<_CharT, char_traits<_CharT>, allocator<_CharT> > 915bitset<_Size>::to_string(_CharT __zero, _CharT __one) const 916{ 917 return to_string<_CharT, char_traits<_CharT>, allocator<_CharT> >(__zero, __one); 918} 919 920template <size_t _Size> 921inline _LIBCPP_INLINE_VISIBILITY 922basic_string<char, char_traits<char>, allocator<char> > 923bitset<_Size>::to_string(char __zero, char __one) const 924{ 925 return to_string<char, char_traits<char>, allocator<char> >(__zero, __one); 926} 927 928template <size_t _Size> 929inline _LIBCPP_INLINE_VISIBILITY 930size_t 931bitset<_Size>::count() const _NOEXCEPT 932{ 933 return static_cast<size_t>(_VSTD::count(base::__make_iter(0), base::__make_iter(_Size), true)); 934} 935 936template <size_t _Size> 937inline _LIBCPP_INLINE_VISIBILITY 938bool 939bitset<_Size>::operator==(const bitset& __rhs) const _NOEXCEPT 940{ 941 return _VSTD::equal(base::__make_iter(0), base::__make_iter(_Size), __rhs.__make_iter(0)); 942} 943 944template <size_t _Size> 945inline _LIBCPP_INLINE_VISIBILITY 946bool 947bitset<_Size>::operator!=(const bitset& __rhs) const _NOEXCEPT 948{ 949 return !(*this == __rhs); 950} 951 952template <size_t _Size> 953bool 954bitset<_Size>::test(size_t __pos) const 955{ 956 if (__pos >= _Size) 957#ifndef _LIBCPP_NO_EXCEPTIONS 958 throw out_of_range("bitset test argument out of range"); 959#else 960 assert(!"bitset test argument out of range"); 961#endif 962 return (*this)[__pos]; 963} 964 965template <size_t _Size> 966inline _LIBCPP_INLINE_VISIBILITY 967bool 968bitset<_Size>::all() const _NOEXCEPT 969{ 970 return base::all(); 971} 972 973template <size_t _Size> 974inline _LIBCPP_INLINE_VISIBILITY 975bool 976bitset<_Size>::any() const _NOEXCEPT 977{ 978 return base::any(); 979} 980 981template <size_t _Size> 982inline _LIBCPP_INLINE_VISIBILITY 983bitset<_Size> 984bitset<_Size>::operator<<(size_t __pos) const _NOEXCEPT 985{ 986 bitset __r = *this; 987 __r <<= __pos; 988 return __r; 989} 990 991template <size_t _Size> 992inline _LIBCPP_INLINE_VISIBILITY 993bitset<_Size> 994bitset<_Size>::operator>>(size_t __pos) const _NOEXCEPT 995{ 996 bitset __r = *this; 997 __r >>= __pos; 998 return __r; 999} 1000 1001template <size_t _Size> 1002inline _LIBCPP_INLINE_VISIBILITY 1003bitset<_Size> 1004operator&(const bitset<_Size>& __x, const bitset<_Size>& __y) _NOEXCEPT 1005{ 1006 bitset<_Size> __r = __x; 1007 __r &= __y; 1008 return __r; 1009} 1010 1011template <size_t _Size> 1012inline _LIBCPP_INLINE_VISIBILITY 1013bitset<_Size> 1014operator|(const bitset<_Size>& __x, const bitset<_Size>& __y) _NOEXCEPT 1015{ 1016 bitset<_Size> __r = __x; 1017 __r |= __y; 1018 return __r; 1019} 1020 1021template <size_t _Size> 1022inline _LIBCPP_INLINE_VISIBILITY 1023bitset<_Size> 1024operator^(const bitset<_Size>& __x, const bitset<_Size>& __y) _NOEXCEPT 1025{ 1026 bitset<_Size> __r = __x; 1027 __r ^= __y; 1028 return __r; 1029} 1030 1031template <size_t _Size> 1032struct _LIBCPP_VISIBLE hash<bitset<_Size> > 1033 : public unary_function<bitset<_Size>, size_t> 1034{ 1035 _LIBCPP_INLINE_VISIBILITY 1036 size_t operator()(const bitset<_Size>& __bs) const _NOEXCEPT 1037 {return __bs.__hash_code();} 1038}; 1039 1040template <class _CharT, class _Traits, size_t _Size> 1041basic_istream<_CharT, _Traits>& 1042operator>>(basic_istream<_CharT, _Traits>& __is, bitset<_Size>& __x); 1043 1044template <class _CharT, class _Traits, size_t _Size> 1045basic_ostream<_CharT, _Traits>& 1046operator<<(basic_ostream<_CharT, _Traits>& __os, const bitset<_Size>& __x); 1047 1048_LIBCPP_END_NAMESPACE_STD 1049 1050#endif // _LIBCPP_BITSET 1051