42 #ifndef _GLIBCXX_BITSET
43 #define _GLIBCXX_BITSET 1
45 #pragma GCC system_header
53 #define _GLIBCXX_BITSET_BITS_PER_WORD (__CHAR_BIT__ * __SIZEOF_LONG__)
54 #define _GLIBCXX_BITSET_WORDS(__n) \
55 ((__n) / _GLIBCXX_BITSET_BITS_PER_WORD + \
56 ((__n) % _GLIBCXX_BITSET_BITS_PER_WORD == 0 ? 0 : 1))
58 #define _GLIBCXX_BITSET_BITS_PER_ULL (__CHAR_BIT__ * __SIZEOF_LONG_LONG__)
60 namespace std _GLIBCXX_VISIBILITY(default)
62 _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
73 typedef unsigned long _WordT;
81 #if __cplusplus >= 201103L
82 constexpr
_Base_bitset(
unsigned long long __val) noexcept
84 #if __SIZEOF_LONG_LONG__ > __SIZEOF_LONG__
85 , _WordT(__val >> _GLIBCXX_BITSET_BITS_PER_WORD)
89 _Base_bitset(
unsigned long __val)
94 static _GLIBCXX_CONSTEXPR
size_t
95 _S_whichword(
size_t __pos) _GLIBCXX_NOEXCEPT
96 {
return __pos / _GLIBCXX_BITSET_BITS_PER_WORD; }
98 static _GLIBCXX_CONSTEXPR
size_t
99 _S_whichbyte(
size_t __pos) _GLIBCXX_NOEXCEPT
100 {
return (__pos % _GLIBCXX_BITSET_BITS_PER_WORD) / __CHAR_BIT__; }
102 static _GLIBCXX_CONSTEXPR
size_t
103 _S_whichbit(
size_t __pos) _GLIBCXX_NOEXCEPT
104 {
return __pos % _GLIBCXX_BITSET_BITS_PER_WORD; }
106 static _GLIBCXX_CONSTEXPR _WordT
107 _S_maskbit(
size_t __pos) _GLIBCXX_NOEXCEPT
108 {
return (static_cast<_WordT>(1)) << _S_whichbit(__pos); }
111 _M_getword(
size_t __pos) _GLIBCXX_NOEXCEPT
112 {
return _M_w[_S_whichword(__pos)]; }
114 _GLIBCXX_CONSTEXPR _WordT
115 _M_getword(
size_t __pos)
const _GLIBCXX_NOEXCEPT
116 {
return _M_w[_S_whichword(__pos)]; }
118 #if __cplusplus >= 201103L
120 _M_getdata() const noexcept
125 _M_hiword() _GLIBCXX_NOEXCEPT
126 {
return _M_w[_Nw - 1]; }
128 _GLIBCXX_CONSTEXPR _WordT
129 _M_hiword() const _GLIBCXX_NOEXCEPT
130 {
return _M_w[_Nw - 1]; }
133 _M_do_and(
const _Base_bitset<_Nw>& __x) _GLIBCXX_NOEXCEPT
135 for (
size_t __i = 0; __i < _Nw; __i++)
136 _M_w[__i] &= __x._M_w[__i];
140 _M_do_or(
const _Base_bitset<_Nw>& __x) _GLIBCXX_NOEXCEPT
142 for (
size_t __i = 0; __i < _Nw; __i++)
143 _M_w[__i] |= __x._M_w[__i];
147 _M_do_xor(
const _Base_bitset<_Nw>& __x) _GLIBCXX_NOEXCEPT
149 for (
size_t __i = 0; __i < _Nw; __i++)
150 _M_w[__i] ^= __x._M_w[__i];
154 _M_do_left_shift(
size_t __shift) _GLIBCXX_NOEXCEPT;
157 _M_do_right_shift(
size_t __shift) _GLIBCXX_NOEXCEPT;
160 _M_do_flip() _GLIBCXX_NOEXCEPT
162 for (
size_t __i = 0; __i < _Nw; __i++)
167 _M_do_set() _GLIBCXX_NOEXCEPT
169 for (
size_t __i = 0; __i < _Nw; __i++)
170 _M_w[__i] = ~static_cast<_WordT>(0);
174 _M_do_reset() _GLIBCXX_NOEXCEPT
175 { __builtin_memset(
_M_w, 0, _Nw *
sizeof(_WordT)); }
178 _M_is_equal(
const _Base_bitset<_Nw>& __x)
const _GLIBCXX_NOEXCEPT
180 for (
size_t __i = 0; __i < _Nw; ++__i)
181 if (
_M_w[__i] != __x._M_w[__i])
188 _M_are_all() const _GLIBCXX_NOEXCEPT
190 for (
size_t __i = 0; __i < _Nw - 1; __i++)
191 if (
_M_w[__i] != ~static_cast<_WordT>(0))
193 return _M_hiword() == (~static_cast<_WordT>(0)
194 >> (_Nw * _GLIBCXX_BITSET_BITS_PER_WORD
199 _M_is_any() const _GLIBCXX_NOEXCEPT
201 for (
size_t __i = 0; __i < _Nw; __i++)
202 if (
_M_w[__i] != static_cast<_WordT>(0))
208 _M_do_count() const _GLIBCXX_NOEXCEPT
211 for (
size_t __i = 0; __i < _Nw; __i++)
212 __result += __builtin_popcountl(
_M_w[__i]);
217 _M_do_to_ulong()
const;
219 #if __cplusplus >= 201103L
221 _M_do_to_ullong()
const;
226 _M_do_find_first(
size_t) const _GLIBCXX_NOEXCEPT;
230 _M_do_find_next(
size_t,
size_t) const _GLIBCXX_NOEXCEPT;
236 _Base_bitset<_Nw>::_M_do_left_shift(
size_t __shift) _GLIBCXX_NOEXCEPT
238 if (__builtin_expect(__shift != 0, 1))
240 const size_t __wshift = __shift / _GLIBCXX_BITSET_BITS_PER_WORD;
241 const size_t __offset = __shift % _GLIBCXX_BITSET_BITS_PER_WORD;
244 for (
size_t __n = _Nw - 1; __n >= __wshift; --__n)
248 const size_t __sub_offset = (_GLIBCXX_BITSET_BITS_PER_WORD
250 for (
size_t __n = _Nw - 1; __n > __wshift; --__n)
251 _M_w[__n] = ((
_M_w[__n - __wshift] << __offset)
252 | (
_M_w[__n - __wshift - 1] >> __sub_offset));
253 _M_w[__wshift] =
_M_w[0] << __offset;
256 std::fill(
_M_w + 0,
_M_w + __wshift, static_cast<_WordT>(0));
262 _Base_bitset<_Nw>::_M_do_right_shift(
size_t __shift) _GLIBCXX_NOEXCEPT
264 if (__builtin_expect(__shift != 0, 1))
266 const size_t __wshift = __shift / _GLIBCXX_BITSET_BITS_PER_WORD;
267 const size_t __offset = __shift % _GLIBCXX_BITSET_BITS_PER_WORD;
268 const size_t __limit = _Nw - __wshift - 1;
271 for (
size_t __n = 0; __n <= __limit; ++__n)
275 const size_t __sub_offset = (_GLIBCXX_BITSET_BITS_PER_WORD
277 for (
size_t __n = 0; __n < __limit; ++__n)
278 _M_w[__n] = ((
_M_w[__n + __wshift] >> __offset)
279 | (
_M_w[__n + __wshift + 1] << __sub_offset));
280 _M_w[__limit] =
_M_w[_Nw-1] >> __offset;
283 std::fill(
_M_w + __limit + 1,
_M_w + _Nw, static_cast<_WordT>(0));
289 _Base_bitset<_Nw>::_M_do_to_ulong()
const
291 for (
size_t __i = 1; __i < _Nw; ++__i)
293 __throw_overflow_error(__N(
"_Base_bitset::_M_do_to_ulong"));
297 #if __cplusplus >= 201103L
300 _Base_bitset<_Nw>::_M_do_to_ullong()
const
302 const bool __dw =
sizeof(
unsigned long long) >
sizeof(
unsigned long);
303 for (
size_t __i = 1 + __dw; __i < _Nw; ++__i)
305 __throw_overflow_error(__N(
"_Base_bitset::_M_do_to_ullong"));
308 return _M_w[0] + (
static_cast<unsigned long long>(
_M_w[1])
309 << _GLIBCXX_BITSET_BITS_PER_WORD);
317 _M_do_find_first(
size_t __not_found)
const _GLIBCXX_NOEXCEPT
319 for (
size_t __i = 0; __i < _Nw; __i++)
321 _WordT __thisword =
_M_w[__i];
322 if (__thisword != static_cast<_WordT>(0))
323 return (__i * _GLIBCXX_BITSET_BITS_PER_WORD
324 + __builtin_ctzl(__thisword));
333 _M_do_find_next(
size_t __prev,
size_t __not_found)
const _GLIBCXX_NOEXCEPT
339 if (__prev >= _Nw * _GLIBCXX_BITSET_BITS_PER_WORD)
343 size_t __i = _S_whichword(__prev);
344 _WordT __thisword =
_M_w[__i];
347 __thisword &= (~static_cast<_WordT>(0)) << _S_whichbit(__prev);
349 if (__thisword != static_cast<_WordT>(0))
350 return (__i * _GLIBCXX_BITSET_BITS_PER_WORD
351 + __builtin_ctzl(__thisword));
355 for (; __i < _Nw; __i++)
357 __thisword =
_M_w[__i];
358 if (__thisword != static_cast<_WordT>(0))
359 return (__i * _GLIBCXX_BITSET_BITS_PER_WORD
360 + __builtin_ctzl(__thisword));
374 typedef unsigned long _WordT;
381 #if __cplusplus >= 201103L
382 constexpr
_Base_bitset(
unsigned long long __val) noexcept
389 static _GLIBCXX_CONSTEXPR
size_t
390 _S_whichword(
size_t __pos) _GLIBCXX_NOEXCEPT
391 {
return __pos / _GLIBCXX_BITSET_BITS_PER_WORD; }
393 static _GLIBCXX_CONSTEXPR
size_t
394 _S_whichbyte(
size_t __pos) _GLIBCXX_NOEXCEPT
395 {
return (__pos % _GLIBCXX_BITSET_BITS_PER_WORD) / __CHAR_BIT__; }
397 static _GLIBCXX_CONSTEXPR
size_t
398 _S_whichbit(
size_t __pos) _GLIBCXX_NOEXCEPT
399 {
return __pos % _GLIBCXX_BITSET_BITS_PER_WORD; }
401 static _GLIBCXX_CONSTEXPR _WordT
402 _S_maskbit(
size_t __pos) _GLIBCXX_NOEXCEPT
403 {
return (static_cast<_WordT>(1)) << _S_whichbit(__pos); }
406 _M_getword(
size_t) _GLIBCXX_NOEXCEPT
409 _GLIBCXX_CONSTEXPR _WordT
410 _M_getword(
size_t)
const _GLIBCXX_NOEXCEPT
413 #if __cplusplus >= 201103L
415 _M_getdata()
const noexcept
420 _M_hiword() _GLIBCXX_NOEXCEPT
423 _GLIBCXX_CONSTEXPR _WordT
424 _M_hiword()
const _GLIBCXX_NOEXCEPT
429 {
_M_w &= __x._M_w; }
433 {
_M_w |= __x._M_w; }
437 {
_M_w ^= __x._M_w; }
440 _M_do_left_shift(
size_t __shift) _GLIBCXX_NOEXCEPT
441 {
_M_w <<= __shift; }
444 _M_do_right_shift(
size_t __shift) _GLIBCXX_NOEXCEPT
445 {
_M_w >>= __shift; }
448 _M_do_flip() _GLIBCXX_NOEXCEPT
452 _M_do_set() _GLIBCXX_NOEXCEPT
453 {
_M_w = ~static_cast<_WordT>(0); }
456 _M_do_reset() _GLIBCXX_NOEXCEPT
461 {
return _M_w == __x._M_w; }
465 _M_are_all()
const _GLIBCXX_NOEXCEPT
466 {
return _M_w == (~static_cast<_WordT>(0)
467 >> (_GLIBCXX_BITSET_BITS_PER_WORD - _Nb)); }
470 _M_is_any()
const _GLIBCXX_NOEXCEPT
471 {
return _M_w != 0; }
474 _M_do_count()
const _GLIBCXX_NOEXCEPT
475 {
return __builtin_popcountl(
_M_w); }
478 _M_do_to_ulong()
const _GLIBCXX_NOEXCEPT
481 #if __cplusplus >= 201103L
483 _M_do_to_ullong()
const noexcept
488 _M_do_find_first(
size_t __not_found)
const _GLIBCXX_NOEXCEPT
491 return __builtin_ctzl(
_M_w);
498 _M_do_find_next(
size_t __prev,
size_t __not_found)
const
502 if (__prev >= ((
size_t) _GLIBCXX_BITSET_BITS_PER_WORD))
505 _WordT __x =
_M_w >> __prev;
507 return __builtin_ctzl(__x) + __prev;
521 typedef unsigned long _WordT;
526 #if __cplusplus >= 201103L
533 static _GLIBCXX_CONSTEXPR
size_t
534 _S_whichword(
size_t __pos) _GLIBCXX_NOEXCEPT
535 {
return __pos / _GLIBCXX_BITSET_BITS_PER_WORD; }
537 static _GLIBCXX_CONSTEXPR
size_t
538 _S_whichbyte(
size_t __pos) _GLIBCXX_NOEXCEPT
539 {
return (__pos % _GLIBCXX_BITSET_BITS_PER_WORD) / __CHAR_BIT__; }
541 static _GLIBCXX_CONSTEXPR
size_t
542 _S_whichbit(
size_t __pos) _GLIBCXX_NOEXCEPT
543 {
return __pos % _GLIBCXX_BITSET_BITS_PER_WORD; }
545 static _GLIBCXX_CONSTEXPR _WordT
546 _S_maskbit(
size_t __pos) _GLIBCXX_NOEXCEPT
547 {
return (static_cast<_WordT>(1)) << _S_whichbit(__pos); }
557 _M_getword(
size_t) _GLIBCXX_NOEXCEPT
559 __throw_out_of_range(__N(
"_Base_bitset::_M_getword"));
563 _GLIBCXX_CONSTEXPR _WordT
564 _M_getword(
size_t __pos)
const _GLIBCXX_NOEXCEPT
567 _GLIBCXX_CONSTEXPR _WordT
568 _M_hiword()
const _GLIBCXX_NOEXCEPT
584 _M_do_left_shift(
size_t) _GLIBCXX_NOEXCEPT
588 _M_do_right_shift(
size_t) _GLIBCXX_NOEXCEPT
592 _M_do_flip() _GLIBCXX_NOEXCEPT
596 _M_do_set() _GLIBCXX_NOEXCEPT
600 _M_do_reset() _GLIBCXX_NOEXCEPT
612 _M_are_all()
const _GLIBCXX_NOEXCEPT
616 _M_is_any()
const _GLIBCXX_NOEXCEPT
620 _M_do_count()
const _GLIBCXX_NOEXCEPT
624 _M_do_to_ulong()
const _GLIBCXX_NOEXCEPT
627 #if __cplusplus >= 201103L
629 _M_do_to_ullong()
const noexcept
636 _M_do_find_first(
size_t)
const _GLIBCXX_NOEXCEPT
640 _M_do_find_next(
size_t,
size_t)
const _GLIBCXX_NOEXCEPT
646 template<
size_t _Extrabits>
649 typedef unsigned long _WordT;
652 _S_do_sanitize(_WordT& __val) _GLIBCXX_NOEXCEPT
653 { __val &= ~((~static_cast<_WordT>(0)) << _Extrabits); }
659 typedef unsigned long _WordT;
662 _S_do_sanitize(_WordT) _GLIBCXX_NOEXCEPT { }
665 #if __cplusplus >= 201103L
666 template<
size_t _Nb,
bool = (_Nb < _GLIBCXX_BITSET_BITS_PER_ULL)>
669 static constexpr
unsigned long long
670 _S_do_sanitize_val(
unsigned long long __val)
675 struct _Sanitize_val<_Nb, true>
677 static constexpr
unsigned long long
678 _S_do_sanitize_val(
unsigned long long __val)
679 {
return __val & ~((~static_cast<
unsigned long long>(0)) << _Nb); }
752 typedef unsigned long _WordT;
754 template<
class _CharT,
class _Traits,
class _Alloc>
757 size_t __position)
const
759 if (__position > __s.
size())
760 __throw_out_of_range_fmt(__N(
"bitset::bitset: __position "
761 "(which is %zu) > __s.size() "
763 __position, __s.
size());
766 void _M_check(
size_t __position,
const char *__s)
const
768 if (__position >= _Nb)
769 __throw_out_of_range_fmt(__N(
"%s: __position (which is %zu) "
770 ">= _Nb (which is %zu)"),
771 __s, __position, _Nb);
775 _M_do_sanitize() _GLIBCXX_NOEXCEPT
777 typedef _Sanitize<_Nb % _GLIBCXX_BITSET_BITS_PER_WORD> __sanitize_type;
778 __sanitize_type::_S_do_sanitize(this->_M_hiword());
781 #if __cplusplus >= 201103L
782 template<
typename>
friend struct hash;
811 _M_wp = &__b._M_getword(__pos);
812 _M_bpos = _Base::_S_whichbit(__pos);
820 operator=(
bool __x) _GLIBCXX_NOEXCEPT
823 *_M_wp |= _Base::_S_maskbit(_M_bpos);
825 *_M_wp &= ~
_Base::_S_maskbit(_M_bpos);
831 operator=(
const reference& __j) _GLIBCXX_NOEXCEPT
833 if ((*(__j._M_wp) & _Base::_S_maskbit(__j._M_bpos)))
834 *_M_wp |= _Base::_S_maskbit(_M_bpos);
836 *_M_wp &= ~
_Base::_S_maskbit(_M_bpos);
842 operator~()
const _GLIBCXX_NOEXCEPT
843 {
return (*(_M_wp) & _Base::_S_maskbit(_M_bpos)) == 0; }
846 operator bool()
const _GLIBCXX_NOEXCEPT
847 {
return (*(_M_wp) & _Base::_S_maskbit(_M_bpos)) != 0; }
851 flip() _GLIBCXX_NOEXCEPT
853 *_M_wp ^= _Base::_S_maskbit(_M_bpos);
861 _GLIBCXX_CONSTEXPR
bitset() _GLIBCXX_NOEXCEPT
865 #if __cplusplus >= 201103L
866 constexpr
bitset(
unsigned long long __val) noexcept
867 :
_Base(_Sanitize_val<_Nb>::_S_do_sanitize_val(__val)) { }
869 bitset(
unsigned long __val)
871 { _M_do_sanitize(); }
883 template<
class _CharT,
class _Traits,
class _Alloc>
886 size_t __position = 0)
889 _M_check_initial_position(__s, __position);
890 _M_copy_from_string(__s, __position,
892 _CharT(
'0'), _CharT(
'1'));
905 template<
class _CharT,
class _Traits,
class _Alloc>
907 size_t __position,
size_t __n)
910 _M_check_initial_position(__s, __position);
911 _M_copy_from_string(__s, __position, __n, _CharT(
'0'), _CharT(
'1'));
916 template<
class _CharT,
class _Traits,
class _Alloc>
918 size_t __position,
size_t __n,
919 _CharT __zero, _CharT __one = _CharT(
'1'))
922 _M_check_initial_position(__s, __position);
923 _M_copy_from_string(__s, __position, __n, __zero, __one);
926 #if __cplusplus >= 201103L
936 template<
typename _CharT>
939 typename std::basic_string<_CharT>::size_type __n
941 _CharT __zero = _CharT(
'0'), _CharT __one = _CharT(
'1'))
945 __throw_logic_error(__N(
"bitset::bitset(const _CharT*, ...)"));
949 _M_copy_from_ptr<_CharT, std::char_traits<_CharT>>(__str, __n, 0,
966 this->_M_do_and(__rhs);
973 this->_M_do_or(__rhs);
980 this->_M_do_xor(__rhs);
993 operator<<=(
size_t __position) _GLIBCXX_NOEXCEPT
995 if (__builtin_expect(__position < _Nb, 1))
997 this->_M_do_left_shift(__position);
998 this->_M_do_sanitize();
1001 this->_M_do_reset();
1008 if (__builtin_expect(__position < _Nb, 1))
1010 this->_M_do_right_shift(__position);
1011 this->_M_do_sanitize();
1014 this->_M_do_reset();
1028 this->_M_getword(__pos) |= _Base::_S_maskbit(__pos);
1036 this->_M_getword(__pos) |= _Base::_S_maskbit(__pos);
1038 this->_M_getword(__pos) &= ~
_Base::_S_maskbit(__pos);
1045 this->_M_getword(__pos) &= ~
_Base::_S_maskbit(__pos);
1052 this->_M_getword(__pos) ^= _Base::_S_maskbit(__pos);
1056 _GLIBCXX_CONSTEXPR
bool
1058 {
return ((this->_M_getword(__pos) & _Base::_S_maskbit(__pos))
1059 != static_cast<_WordT>(0)); }
1070 this->_M_do_sanitize();
1081 set(
size_t __position,
bool __val =
true)
1083 this->_M_check(__position, __N(
"bitset::set"));
1084 return _Unchecked_set(__position, __val);
1093 this->_M_do_reset();
1107 this->_M_check(__position, __N(
"bitset::reset"));
1108 return _Unchecked_reset(__position);
1118 this->_M_do_sanitize();
1130 this->_M_check(__position, __N(
"bitset::flip"));
1131 return _Unchecked_flip(__position);
1156 {
return reference(*
this, __position); }
1158 _GLIBCXX_CONSTEXPR
bool
1160 {
return _Unchecked_test(__position); }
1171 {
return this->_M_do_to_ulong(); }
1173 #if __cplusplus >= 201103L
1176 {
return this->_M_do_to_ullong(); }
1187 template<
class _CharT,
class _Traits,
class _Alloc>
1192 _M_copy_to_string(__result, _CharT(
'0'), _CharT(
'1'));
1198 template<
class _CharT,
class _Traits,
class _Alloc>
1200 to_string(_CharT __zero, _CharT __one = _CharT(
'1'))
const
1203 _M_copy_to_string(__result, __zero, __one);
1209 template<
class _CharT,
class _Traits>
1212 {
return to_string<_CharT, _Traits, std::allocator<_CharT> >(); }
1216 template<
class _CharT,
class _Traits>
1218 to_string(_CharT __zero, _CharT __one = _CharT(
'1'))
const
1219 {
return to_string<_CharT, _Traits,
1222 template<
class _CharT>
1227 return to_string<_CharT, std::char_traits<_CharT>,
1231 template<
class _CharT>
1234 to_string(_CharT __zero, _CharT __one = _CharT(
'1'))
const
1236 return to_string<_CharT, std::char_traits<_CharT>,
1243 return to_string<char, std::char_traits<char>,
1248 to_string(
char __zero,
char __one =
'1')
const
1250 return to_string<char, std::char_traits<char>,
1255 template<
class _CharT,
class _Traits>
1257 _M_copy_from_ptr(
const _CharT*,
size_t,
size_t,
size_t,
1260 template<
class _CharT,
class _Traits,
class _Alloc>
1263 _Traits, _Alloc>& __s,
size_t __pos,
size_t __n,
1264 _CharT __zero, _CharT __one)
1265 { _M_copy_from_ptr<_CharT, _Traits>(__s.
data(), __s.
size(), __pos, __n,
1268 template<
class _CharT,
class _Traits,
class _Alloc>
1271 _CharT, _CharT)
const;
1274 template<
class _CharT,
class _Traits,
class _Alloc>
1277 _Traits, _Alloc>& __s,
size_t __pos,
size_t __n)
1278 { _M_copy_from_string(__s, __pos, __n, _CharT(
'0'), _CharT(
'1')); }
1280 template<
class _CharT,
class _Traits,
class _Alloc>
1283 { _M_copy_to_string(__s, _CharT(
'0'), _CharT(
'1')); }
1288 {
return this->_M_do_count(); }
1291 _GLIBCXX_CONSTEXPR
size_t
1299 {
return this->_M_is_equal(__rhs); }
1303 {
return !this->_M_is_equal(__rhs); }
1315 this->_M_check(__position, __N(
"bitset::test"));
1316 return _Unchecked_test(__position);
1327 {
return this->
template _M_are_all<_Nb>(); }
1335 {
return this->_M_is_any(); }
1343 {
return !this->_M_is_any(); }
1364 {
return this->_M_do_find_first(_Nb); }
1375 {
return this->_M_do_find_next(__prev, _Nb); }
1379 template<
size_t _Nb>
1380 template<
class _CharT,
class _Traits>
1383 _M_copy_from_ptr(
const _CharT* __s,
size_t __len,
1384 size_t __pos,
size_t __n, _CharT __zero, _CharT __one)
1387 const size_t __nbits =
std::min(_Nb,
std::min(__n,
size_t(__len - __pos)));
1388 for (
size_t __i = __nbits; __i > 0; --__i)
1390 const _CharT __c = __s[__pos + __nbits - __i];
1391 if (_Traits::eq(__c, __zero))
1393 else if (_Traits::eq(__c, __one))
1394 _Unchecked_set(__i - 1);
1396 __throw_invalid_argument(__N(
"bitset::_M_copy_from_ptr"));
1400 template<
size_t _Nb>
1401 template<
class _CharT,
class _Traits,
class _Alloc>
1405 _CharT __zero, _CharT __one)
const
1408 for (
size_t __i = _Nb; __i > 0; --__i)
1409 if (_Unchecked_test(__i - 1))
1410 _Traits::assign(__s[_Nb - __i], __one);
1423 template<
size_t _Nb>
1432 template<
size_t _Nb>
1441 template <
size_t _Nb>
1460 template<
class _CharT,
class _Traits,
size_t _Nb>
1464 typedef typename _Traits::char_type char_type;
1466 typedef typename __istream_type::ios_base __ios_base;
1473 const char_type __zero = __is.
widen(
'0');
1474 const char_type __one = __is.
widen(
'1');
1476 typename __ios_base::iostate __state = __ios_base::goodbit;
1477 typename __istream_type::sentry __sentry(__is);
1482 for (
size_t __i = _Nb; __i > 0; --__i)
1484 static typename _Traits::int_type __eof = _Traits::eof();
1486 typename _Traits::int_type __c1 = __is.
rdbuf()->sbumpc();
1487 if (_Traits::eq_int_type(__c1, __eof))
1489 __state |= __ios_base::eofbit;
1494 const char_type __c2 = _Traits::to_char_type(__c1);
1495 if (_Traits::eq(__c2, __zero))
1497 else if (_Traits::eq(__c2, __one))
1500 eq_int_type(__is.
rdbuf()->sputbackc(__c2),
1503 __state |= __ios_base::failbit;
1511 __is._M_setstate(__ios_base::badbit);
1512 __throw_exception_again;
1515 { __is._M_setstate(__ios_base::badbit); }
1518 if (__tmp.
empty() && _Nb)
1519 __state |= __ios_base::failbit;
1521 __x._M_copy_from_string(__tmp, static_cast<size_t>(0), _Nb,
1528 template <
class _CharT,
class _Traits,
size_t _Nb>
1530 operator<<(std::basic_ostream<_CharT, _Traits>& __os,
1537 const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__os.getloc());
1538 __x._M_copy_to_string(__tmp, __ct.
widen(
'0'), __ct.
widen(
'1'));
1539 return __os << __tmp;
1543 _GLIBCXX_END_NAMESPACE_CONTAINER
1546 #undef _GLIBCXX_BITSET_WORDS
1547 #undef _GLIBCXX_BITSET_BITS_PER_WORD
1548 #undef _GLIBCXX_BITSET_BITS_PER_ULL
1550 #if __cplusplus >= 201103L
1554 namespace std _GLIBCXX_VISIBILITY(default)
1556 _GLIBCXX_BEGIN_NAMESPACE_VERSION
1560 template<
size_t _Nb>
1562 :
public __hash_base<size_t, _GLIBCXX_STD_C::bitset<_Nb>>
1565 operator()(
const _GLIBCXX_STD_C::bitset<_Nb>& __b)
const noexcept
1567 const size_t __clength = (_Nb + __CHAR_BIT__ - 1) / __CHAR_BIT__;
1568 return std::_Hash_impl::hash(__b._M_getdata(), __clength);
1574 :
public __hash_base<size_t, _GLIBCXX_STD_C::bitset<0>>
1577 operator()(
const _GLIBCXX_STD_C::bitset<0>&) const noexcept
1581 _GLIBCXX_END_NAMESPACE_VERSION
1586 #ifdef _GLIBCXX_DEBUG
1590 #ifdef _GLIBCXX_PROFILE
constexpr bitset(unsigned long long __val) noexcept
Initial bits bitwise-copied from a single word (others set to zero).
bitset< _Nb > operator&(const bitset< _Nb > &__x, const bitset< _Nb > &__y) noexcept
Global bitwise operations on bitsets.
_GLIBCXX14_CONSTEXPR const _Tp & min(const _Tp &, const _Tp &)
This does what you think it does.
constexpr size_t size() const noexcept
Returns the total number of bits.
bitset< _Nb > & reset() noexcept
Sets every bit to false.
bitset< _Nb > & operator>>=(size_t __position) noexcept
bitset< _Nb > & operator|=(const bitset< _Nb > &__rhs) noexcept
Primary class template hash.
bitset< _Nb > & flip(size_t __position)
Toggles a given bit to its opposite value.
basic_string & assign(const basic_string &__str)
Set value to contents of another string.
bitset< _Nb > & reset(size_t __position)
Sets a given bit to false.
std::basic_ostream< _CharT, _Traits > & operator<<(std::basic_ostream< _CharT, _Traits > &__os, const bitset< _Nb > &__x)
Global I/O operators for bitsets.
bitset< _Nb > operator~() const noexcept
See the no-argument flip().
The standard allocator, as per [20.4].
bool test(size_t __position) const
Tests the value of a bit.
bitset(const _CharT *__str, typename std::basic_string< _CharT >::size_type __n=std::basic_string< _CharT >::npos, _CharT __zero=_CharT('0'), _CharT __one=_CharT('1'))
_WordT _M_w[_Nw]
0 is the least significant word.
Primary class template ctype facet.This template class defines classification and conversion function...
std::basic_istream< _CharT, _Traits > & operator>>(std::basic_istream< _CharT, _Traits > &__is, bitset< _Nb > &__x)
Global I/O operators for bitsets.
unsigned long to_ulong() const
Returns a numerical interpretation of the bitset.
Managing sequences of characters and character-like objects.
bool operator==(const bitset< _Nb > &__rhs) const noexcept
These comparisons for equality/inequality are, well, bitwise.
Template class basic_ostream.
bitset< _Nb > & operator&=(const bitset< _Nb > &__rhs) noexcept
size_t _Find_next(size_t __prev) const noexcept
Finds the index of the next "on" bit after prev.
bitset< _Nb > operator^(const bitset< _Nb > &__x, const bitset< _Nb > &__y) noexcept
Global bitwise operations on bitsets.
size_t _Find_first() const noexcept
Finds the index of the first "on" bit.
const _CharT * data() const noexcept
Return const pointer to contents.
void reserve(size_type __res_arg=0)
Attempt to preallocate enough memory for specified number of characters.
basic_streambuf< _CharT, _Traits > * rdbuf() const
Accessing the underlying buffer.
char_type widen(char __c) const
Widens characters.
bitset< _Nb > & operator^=(const bitset< _Nb > &__rhs) noexcept
bitset< _Nb > & _Unchecked_set(size_t __pos, int __val) noexcept
reference operator[](size_t __position)
Array-indexing support.
bitset< _Nb > & _Unchecked_set(size_t __pos) noexcept
bitset< _Nb > & set() noexcept
Sets every bit to true.
constexpr bitset() noexcept
All bits set to zero.
char_type widen(char __c) const
Widen char to char_type.
Basis for explicit traits specializations.
bitset< _Nb > & flip() noexcept
Toggles every bit to its opposite value.
size_type size() const noexcept
Returns the number of characters in the string, not including any null-termination.
bitset(const std::basic_string< _CharT, _Traits, _Alloc > &__s, size_t __position, size_t __n)
constexpr bool operator[](size_t __position) const
Array-indexing support.
Template class basic_istream.
void push_back(_CharT __c)
Append a single character.
bitset< _Nb > & set(size_t __position, bool __val=true)
Sets a given bit to a particular value.
bool all() const noexcept
Tests whether all the bits are on.
bool empty() const noexcept
bitset< _Nb > & _Unchecked_flip(size_t __pos) noexcept
size_t count() const noexcept
Returns the number of bits which are set.
The bitset class represents a fixed-size sequence of bits.(Note that bitset does not meet the formal ...
constexpr bool _Unchecked_test(size_t __pos) const noexcept
bool none() const noexcept
Tests whether any of the bits are on.
bitset< _Nb > operator|(const bitset< _Nb > &__x, const bitset< _Nb > &__y) noexcept
Global bitwise operations on bitsets.
bool any() const noexcept
Tests whether any of the bits are on.
bitset(const std::basic_string< _CharT, _Traits, _Alloc > &__s, size_t __position=0)
bitset< _Nb > operator>>(size_t __position) const noexcept
Self-explanatory.
std::basic_string< _CharT, _Traits, _Alloc > to_string() const
Returns a character interpretation of the bitset.
bitset< _Nb > & _Unchecked_reset(size_t __pos) noexcept
bool operator!=(const bitset< _Nb > &__rhs) const noexcept
These comparisons for equality/inequality are, well, bitwise.
void setstate(iostate __state)
Sets additional flags in the error state.
Thrown as part of forced unwinding.A magic placeholder class that can be caught by reference to recog...