// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_BITSET
#define _LIBCPP_BITSET
// clang-format off
/*
bitset synopsis
namespace std
{
namespace std {
template <size_t N>
class bitset
{
public:
// bit reference:
class reference
{
friend class bitset;
reference() noexcept;
public:
~reference() noexcept;
reference& operator=(bool x) noexcept; // for b[i] = x;
reference& operator=(const reference&) noexcept; // for b[i] = b[j];
bool operator~() const noexcept; // flips the bit
operator bool() const noexcept; // for x = b[i];
reference& flip() noexcept; // for b[i].flip();
};
// 23.3.5.1 constructors:
constexpr bitset() noexcept;
constexpr bitset(unsigned long long val) noexcept;
template <class charT>
constexpr explicit bitset(const charT* str,
typename basic_string<charT>::size_type n = basic_string<charT>::npos,
charT zero = charT('0'), charT one = charT('1')); // until C++26, constexpr since C++23
template <class charT>
constexpr explicit bitset(const charT* str,
typename basic_string_view<charT>::size_type n = basic_string_view<charT>::npos,
charT zero = charT('0'), charT one = charT('1')); // since C++26
template<class charT, class traits>
explicit bitset(
const basic_string_view<charT,traits>& str,
typename basic_string_view<charT,traits>::size_type pos = 0,
typename basic_string_view<charT,traits>::size_type n = basic_string_view<charT,traits>::npos,
charT zero = charT('0'), charT one = charT('1')); // since C++26
template<class charT, class traits, class Allocator>
constexpr explicit bitset(
const basic_string<charT,traits,Allocator>& str,
typename basic_string<charT,traits,Allocator>::size_type pos = 0,
typename basic_string<charT,traits,Allocator>::size_type n = basic_string<charT,traits,Allocator>::npos,
charT zero = charT('0'), charT one = charT('1')); // constexpr since C++23
// 23.3.5.2 bitset operations:
bitset& operator&=(const bitset& rhs) noexcept; // constexpr since C++23
bitset& operator|=(const bitset& rhs) noexcept; // constexpr since C++23
bitset& operator^=(const bitset& rhs) noexcept; // constexpr since C++23
bitset& operator<<=(size_t pos) noexcept; // constexpr since C++23
bitset& operator>>=(size_t pos) noexcept; // constexpr since C++23
bitset& set() noexcept; // constexpr since C++23
bitset& set(size_t pos, bool val = true); // constexpr since C++23
bitset& reset() noexcept; // constexpr since C++23
bitset& reset(size_t pos); // constexpr since C++23
bitset operator~() const noexcept; // constexpr since C++23
bitset& flip() noexcept; // constexpr since C++23
bitset& flip(size_t pos); // constexpr since C++23
// element access:
constexpr bool operator[](size_t pos) const;
reference operator[](size_t pos); // constexpr since C++23
unsigned long to_ulong() const; // constexpr since C++23
unsigned long long to_ullong() const; // constexpr since C++23
template <class charT, class traits, class Allocator> // constexpr since C++23
basic_string<charT, traits, Allocator> to_string(charT zero = charT('0'), charT one = charT('1')) const;
template <class charT, class traits> // constexpr since C++23
basic_string<charT, traits, allocator<charT> > to_string(charT zero = charT('0'), charT one = charT('1')) const;
template <class charT> // constexpr since C++23
basic_string<charT, char_traits<charT>, allocator<charT> > to_string(charT zero = charT('0'), charT one = charT('1')) const;
basic_string<char, char_traits<char>, allocator<char> > to_string(char zero = '0', char one = '1') const; // constexpr since C++23
size_t count() const noexcept; // constexpr since C++23
constexpr size_t size() const noexcept; // constexpr since C++23
bool operator==(const bitset& rhs) const noexcept; // constexpr since C++23
bool operator!=(const bitset& rhs) const noexcept; // removed in C++20
bool test(size_t pos) const; // constexpr since C++23
bool all() const noexcept; // constexpr since C++23
bool any() const noexcept; // constexpr since C++23
bool none() const noexcept; // constexpr since C++23
bitset<N> operator<<(size_t pos) const noexcept; // constexpr since C++23
bitset<N> operator>>(size_t pos) const noexcept; // constexpr since C++23
};
// 23.3.5.3 bitset operators:
template <size_t N>
bitset<N> operator&(const bitset<N>&, const bitset<N>&) noexcept; // constexpr since C++23
template <size_t N>
bitset<N> operator|(const bitset<N>&, const bitset<N>&) noexcept; // constexpr since C++23
template <size_t N>
bitset<N> operator^(const bitset<N>&, const bitset<N>&) noexcept; // constexpr since C++23
template <class charT, class traits, size_t N>
basic_istream<charT, traits>&
operator>>(basic_istream<charT, traits>& is, bitset<N>& x);
template <class charT, class traits, size_t N>
basic_ostream<charT, traits>&
operator<<(basic_ostream<charT, traits>& os, const bitset<N>& x);
template <size_t N> struct hash<std::bitset<N>>;
} // std
*/
// clang-format on
#include <__algorithm/count.h>
#include <__algorithm/fill.h>
#include <__algorithm/find.h>
#include <__bit_reference>
#include <__config>
#include <__functional/hash.h>
#include <__functional/unary_function.h>
#include <__type_traits/is_char_like_type.h>
#include <climits>
#include <cstddef>
#include <stdexcept>
#include <string_view>
#include <version>
// standard-mandated includes
// [bitset.syn]
#include <iosfwd>
#include <string>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include <__undef_macros>
_LIBCPP_BEGIN_NAMESPACE_STD
template <size_t _N_words, size_t _Size>
class __bitset;
template <size_t _N_words, size_t _Size>
struct __has_storage_type<__bitset<_N_words, _Size> > {
static const bool value = true;
};
template <size_t _N_words, size_t _Size>
class __bitset {
public:
typedef ptrdiff_t difference_type;
typedef size_t size_type;
typedef size_type __storage_type;
protected:
typedef __bitset __self;
typedef __storage_type* __storage_pointer;
typedef const __storage_type* __const_storage_pointer;
static const unsigned __bits_per_word = static_cast<unsigned>(sizeof(__storage_type) * CHAR_BIT);
friend class __bit_reference<__bitset>;
friend class __bit_const_reference<__bitset>;
friend class __bit_iterator<__bitset, false>;
friend class __bit_iterator<__bitset, true>;
friend struct __bit_array<__bitset>;
__storage_type __first_[_N_words];
typedef __bit_reference<__bitset> reference;
typedef __bit_const_reference<__bitset> const_reference;
typedef __bit_iterator<__bitset, false> iterator;
typedef __bit_iterator<__bitset, true> const_iterator;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR __bitset() _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI explicit _LIBCPP_CONSTEXPR __bitset(unsigned long long __v) _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 reference __make_ref(size_t __pos) _NOEXCEPT {
return reference(__first_ + __pos / __bits_per_word, __storage_type(1) << __pos % __bits_per_word);
}
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR const_reference __make_ref(size_t __pos) const _NOEXCEPT {
return const_reference(__first_ + __pos / __bits_per_word, __storage_type(1) << __pos % __bits_per_word);
}
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 iterator __make_iter(size_t __pos) _NOEXCEPT {
return iterator(__first_ + __pos / __bits_per_word, __pos % __bits_per_word);
}
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 const_iterator __make_iter(size_t __pos) const _NOEXCEPT {
return const_iterator(__first_ + __pos / __bits_per_word, __pos % __bits_per_word);
}
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void operator&=(const __bitset& __v) _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void operator|=(const __bitset& __v) _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void operator^=(const __bitset& __v) _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void flip() _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long to_ulong() const {
return to_ulong(integral_constant < bool, _Size< sizeof(unsigned long) * CHAR_BIT>());
}
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long long to_ullong() const {
return to_ullong(integral_constant < bool, _Size< sizeof(unsigned long long) * CHAR_BIT>());
}
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool all() const _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool any() const _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI size_t __hash_code() const _NOEXCEPT;
private:
#ifdef _LIBCPP_CXX03_LANG
void __init(unsigned long long __v, false_type) _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI void __init(unsigned long long __v, true_type) _NOEXCEPT;
#endif // _LIBCPP_CXX03_LANG
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long to_ulong(false_type) const;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long to_ulong(true_type) const;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long long to_ullong(false_type) const;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long long to_ullong(true_type) const;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long long to_ullong(true_type, false_type) const;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long long to_ullong(true_type, true_type) const;
};
template <size_t _N_words, size_t _Size>
inline _LIBCPP_CONSTEXPR __bitset<_N_words, _Size>::__bitset() _NOEXCEPT
#ifndef _LIBCPP_CXX03_LANG
: __first_{0}
#endif
{
#ifdef _LIBCPP_CXX03_LANG
std::fill_n(__first_, _N_words, __storage_type(0));
#endif
}
#ifdef _LIBCPP_CXX03_LANG
template <size_t _N_words, size_t _Size>
void __bitset<_N_words, _Size>::__init(unsigned long long __v, false_type) _NOEXCEPT {
__storage_type __t[sizeof(unsigned long long) / sizeof(__storage_type)];
size_t __sz = _Size;
for (size_t __i = 0; __i < sizeof(__t) / sizeof(__t[0]); ++__i, __v >>= __bits_per_word, __sz -= __bits_per_word)
if (__sz < __bits_per_word)
__t[__i] = static_cast<__storage_type>(__v) & (1ULL << __sz) - 1;
else
__t[__i] = static_cast<__storage_type>(__v);
std::copy(__t, __t + sizeof(__t) / sizeof(__t[0]), __first_);
std::fill(
__first_ + sizeof(__t) / sizeof(__t[0]), __first_ + sizeof(__first_) / sizeof(__first_[0]), __storage_type(0));
}
template <size_t _N_words, size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI void __bitset<_N_words, _Size>::__init(unsigned long long __v, true_type) _NOEXCEPT {
__first_[0] = __v;
if (_Size < __bits_per_word)
__first_[0] &= (1ULL << _Size) - 1;
std::fill(__first_ + 1, __first_ + sizeof(__first_) / sizeof(__first_[0]), __storage_type(0));
}
#endif // _LIBCPP_CXX03_LANG
template <size_t _N_words, size_t _Size>
inline _LIBCPP_CONSTEXPR __bitset<_N_words, _Size>::__bitset(unsigned long long __v) _NOEXCEPT
#ifndef _LIBCPP_CXX03_LANG
# if __SIZEOF_SIZE_T__ == 8
: __first_{__v}
# elif __SIZEOF_SIZE_T__ == 4
: __first_{static_cast<__storage_type>(__v),
_Size >= 2 * __bits_per_word
? static_cast<__storage_type>(__v >> __bits_per_word)
: static_cast<__storage_type>((__v >> __bits_per_word) &
(__storage_type(1) << (_Size - __bits_per_word)) - 1)}
# else
# error This constructor has not been ported to this platform
# endif
#endif
{
#ifdef _LIBCPP_CXX03_LANG
__init(__v, integral_constant<bool, sizeof(unsigned long long) == sizeof(__storage_type)>());
#endif
}
template <size_t _N_words, size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void
__bitset<_N_words, _Size>::operator&=(const __bitset& __v) _NOEXCEPT {
for (size_type __i = 0; __i < _N_words; ++__i)
__first_[__i] &= __v.__first_[__i];
}
template <size_t _N_words, size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void
__bitset<_N_words, _Size>::operator|=(const __bitset& __v) _NOEXCEPT {
for (size_type __i = 0; __i < _N_words; ++__i)
__first_[__i] |= __v.__first_[__i];
}
template <size_t _N_words, size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void
__bitset<_N_words, _Size>::operator^=(const __bitset& __v) _NOEXCEPT {
for (size_type __i = 0; __i < _N_words; ++__i)
__first_[__i] ^= __v.__first_[__i];
}
template <size_t _N_words, size_t _Size>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void __bitset<_N_words, _Size>::flip() _NOEXCEPT {
// do middle whole words
size_type __n = _Size;
__storage_pointer __p = __first_;
for (; __n >= __bits_per_word; ++__p, __n -= __bits_per_word)
*__p = ~*__p;
// do last partial word
if (__n > 0) {
__storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n);
__storage_type __b = *__p & __m;
*__p &= ~__m;
*__p |= ~__b & __m;
}
}
template <size_t _N_words, size_t _Size>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long
__bitset<_N_words, _Size>::to_ulong(false_type) const {
const_iterator __e = __make_iter(_Size);
const_iterator __i = std::find(__make_iter(sizeof(unsigned long) * CHAR_BIT), __e, true);
if (__i != __e)
__throw_overflow_error("bitset to_ulong overflow error");
return __first_[0];
}
template <size_t _N_words, size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long
__bitset<_N_words, _Size>::to_ulong(true_type) const {
return __first_[0];
}
template <size_t _N_words, size_t _Size>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long long
__bitset<_N_words, _Size>::to_ullong(false_type) const {
const_iterator __e = __make_iter(_Size);
const_iterator __i = std::find(__make_iter(sizeof(unsigned long long) * CHAR_BIT), __e, true);
if (__i != __e)
__throw_overflow_error("bitset to_ullong overflow error");
return to_ullong(true_type());
}
template <size_t _N_words, size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long long
__bitset<_N_words, _Size>::to_ullong(true_type) const {
return to_ullong(true_type(), integral_constant<bool, sizeof(__storage_type) < sizeof(unsigned long long)>());
}
template <size_t _N_words, size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long long
__bitset<_N_words, _Size>::to_ullong(true_type, false_type) const {
return __first_[0];
}
template <size_t _N_words, size_t _Size>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long long
__bitset<_N_words, _Size>::to_ullong(true_type, true_type) const {
unsigned long long __r = __first_[0];
_LIBCPP_DIAGNOSTIC_PUSH
_LIBCPP_GCC_DIAGNOSTIC_IGNORED("-Wshift-count-overflow")
for (size_t __i = 1; __i < sizeof(unsigned long long) / sizeof(__storage_type); ++__i)
__r |= static_cast<unsigned long long>(__first_[__i]) << (sizeof(__storage_type) * CHAR_BIT);
_LIBCPP_DIAGNOSTIC_POP
return __r;
}
template <size_t _N_words, size_t _Size>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool __bitset<_N_words, _Size>::all() const _NOEXCEPT {
// do middle whole words
size_type __n = _Size;
__const_storage_pointer __p = __first_;
for (; __n >= __bits_per_word; ++__p, __n -= __bits_per_word)
if (~*__p)
return false;
// do last partial word
if (__n > 0) {
__storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n);
if (~*__p & __m)
return false;
}
return true;
}
template <size_t _N_words, size_t _Size>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool __bitset<_N_words, _Size>::any() const _NOEXCEPT {
// do middle whole words
size_type __n = _Size;
__const_storage_pointer __p = __first_;
for (; __n >= __bits_per_word; ++__p, __n -= __bits_per_word)
if (*__p)
return true;
// do last partial word
if (__n > 0) {
__storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n);
if (*__p & __m)
return true;
}
return false;
}
template <size_t _N_words, size_t _Size>
inline size_t __bitset<_N_words, _Size>::__hash_code() const _NOEXCEPT {
size_t __h = 0;
for (size_type __i = 0; __i < _N_words; ++__i)
__h ^= __first_[__i];
return __h;
}
template <size_t _Size>
class __bitset<1, _Size> {
public:
typedef ptrdiff_t difference_type;
typedef size_t size_type;
typedef size_type __storage_type;
protected:
typedef __bitset __self;
typedef __storage_type* __storage_pointer;
typedef const __storage_type* __const_storage_pointer;
static const unsigned __bits_per_word = static_cast<unsigned>(sizeof(__storage_type) * CHAR_BIT);
friend class __bit_reference<__bitset>;
friend class __bit_const_reference<__bitset>;
friend class __bit_iterator<__bitset, false>;
friend class __bit_iterator<__bitset, true>;
friend struct __bit_array<__bitset>;
__storage_type __first_;
typedef __bit_reference<__bitset> reference;
typedef __bit_const_reference<__bitset> const_reference;
typedef __bit_iterator<__bitset, false> iterator;
typedef __bit_iterator<__bitset, true> const_iterator;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR __bitset() _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI explicit _LIBCPP_CONSTEXPR __bitset(unsigned long long __v) _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 reference __make_ref(size_t __pos) _NOEXCEPT {
return reference(&__first_, __storage_type(1) << __pos);
}
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR const_reference __make_ref(size_t __pos) const _NOEXCEPT {
return const_reference(&__first_, __storage_type(1) << __pos);
}
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 iterator __make_iter(size_t __pos) _NOEXCEPT {
return iterator(&__first_ + __pos / __bits_per_word, __pos % __bits_per_word);
}
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 const_iterator __make_iter(size_t __pos) const _NOEXCEPT {
return const_iterator(&__first_ + __pos / __bits_per_word, __pos % __bits_per_word);
}
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void operator&=(const __bitset& __v) _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void operator|=(const __bitset& __v) _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void operator^=(const __bitset& __v) _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void flip() _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long to_ulong() const;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long long to_ullong() const;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool all() const _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool any() const _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI size_t __hash_code() const _NOEXCEPT;
};
template <size_t _Size>
inline _LIBCPP_CONSTEXPR __bitset<1, _Size>::__bitset() _NOEXCEPT : __first_(0) {}
template <size_t _Size>
inline _LIBCPP_CONSTEXPR __bitset<1, _Size>::__bitset(unsigned long long __v) _NOEXCEPT
: __first_(_Size == __bits_per_word ? static_cast<__storage_type>(__v)
: static_cast<__storage_type>(__v) & ((__storage_type(1) << _Size) - 1)) {}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void
__bitset<1, _Size>::operator&=(const __bitset& __v) _NOEXCEPT {
__first_ &= __v.__first_;
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void
__bitset<1, _Size>::operator|=(const __bitset& __v) _NOEXCEPT {
__first_ |= __v.__first_;
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void
__bitset<1, _Size>::operator^=(const __bitset& __v) _NOEXCEPT {
__first_ ^= __v.__first_;
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void __bitset<1, _Size>::flip() _NOEXCEPT {
__storage_type __m = ~__storage_type(0) >> (__bits_per_word - _Size);
__first_ = ~__first_;
__first_ &= __m;
}
template <size_t _Size>
inline _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long __bitset<1, _Size>::to_ulong() const {
return __first_;
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long long __bitset<1, _Size>::to_ullong() const {
return __first_;
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool __bitset<1, _Size>::all() const _NOEXCEPT {
__storage_type __m = ~__storage_type(0) >> (__bits_per_word - _Size);
return !(~__first_ & __m);
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool __bitset<1, _Size>::any() const _NOEXCEPT {
__storage_type __m = ~__storage_type(0) >> (__bits_per_word - _Size);
return __first_ & __m;
}
template <size_t _Size>
inline size_t __bitset<1, _Size>::__hash_code() const _NOEXCEPT {
return __first_;
}
template <>
class __bitset<0, 0> {
public:
typedef ptrdiff_t difference_type;
typedef size_t size_type;
typedef size_type __storage_type;
protected:
typedef __bitset __self;
typedef __storage_type* __storage_pointer;
typedef const __storage_type* __const_storage_pointer;
static const unsigned __bits_per_word = static_cast<unsigned>(sizeof(__storage_type) * CHAR_BIT);
friend class __bit_reference<__bitset>;
friend class __bit_const_reference<__bitset>;
friend class __bit_iterator<__bitset, false>;
friend class __bit_iterator<__bitset, true>;
friend struct __bit_array<__bitset>;
typedef __bit_reference<__bitset> reference;
typedef __bit_const_reference<__bitset> const_reference;
typedef __bit_iterator<__bitset, false> iterator;
typedef __bit_iterator<__bitset, true> const_iterator;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR __bitset() _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI explicit _LIBCPP_CONSTEXPR __bitset(unsigned long long) _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 reference __make_ref(size_t) _NOEXCEPT {
return reference(nullptr, 1);
}
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR const_reference __make_ref(size_t) const _NOEXCEPT {
return const_reference(nullptr, 1);
}
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 iterator __make_iter(size_t) _NOEXCEPT {
return iterator(nullptr, 0);
}
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 const_iterator __make_iter(size_t) const _NOEXCEPT {
return const_iterator(nullptr, 0);
}
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void operator&=(const __bitset&) _NOEXCEPT {}
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void operator|=(const __bitset&) _NOEXCEPT {}
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void operator^=(const __bitset&) _NOEXCEPT {}
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void flip() _NOEXCEPT {}
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long to_ulong() const { return 0; }
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long long to_ullong() const { return 0; }
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool all() const _NOEXCEPT { return true; }
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool any() const _NOEXCEPT { return false; }
_LIBCPP_HIDE_FROM_ABI size_t __hash_code() const _NOEXCEPT { return 0; }
};
inline _LIBCPP_CONSTEXPR __bitset<0, 0>::__bitset() _NOEXCEPT {}
inline _LIBCPP_CONSTEXPR __bitset<0, 0>::__bitset(unsigned long long) _NOEXCEPT {}
template <size_t _Size>
class _LIBCPP_TEMPLATE_VIS bitset;
template <size_t _Size>
struct hash<bitset<_Size> >;
template <size_t _Size>
class _LIBCPP_TEMPLATE_VIS bitset
: private __bitset<_Size == 0 ? 0 : (_Size - 1) / (sizeof(size_t) * CHAR_BIT) + 1, _Size> {
public:
static const unsigned __n_words = _Size == 0 ? 0 : (_Size - 1) / (sizeof(size_t) * CHAR_BIT) + 1;
typedef __bitset<__n_words, _Size> base;
public:
typedef typename base::reference reference;
typedef typename base::const_reference const_reference;
// 23.3.5.1 constructors:
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR bitset() _NOEXCEPT {}
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR bitset(unsigned long long __v) _NOEXCEPT : base(__v) {}
template <class _CharT, __enable_if_t<_IsCharLikeType<_CharT>::value, int> = 0>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 explicit bitset(
const _CharT* __str,
#if _LIBCPP_STD_VER >= 26
typename basic_string_view<_CharT>::size_type __n = basic_string_view<_CharT>::npos,
#else
typename basic_string<_CharT>::size_type __n = basic_string<_CharT>::npos,
#endif
_CharT __zero = _CharT('0'),
_CharT __one = _CharT('1')) {
size_t __rlen = std::min(__n, char_traits<_CharT>::length(__str));
__init_from_string_view(basic_string_view<_CharT>(__str, __rlen), __zero, __one);
}
#if _LIBCPP_STD_VER >= 26
template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI constexpr explicit bitset(
basic_string_view<_CharT, _Traits> __str,
typename basic_string_view<_CharT, _Traits>::size_type __pos = 0,
typename basic_string_view<_CharT, _Traits>::size_type __n = basic_string_view<_CharT, _Traits>::npos,
_CharT __zero = _CharT('0'),
_CharT __one = _CharT('1')) {
if (__pos > __str.size())
__throw_out_of_range("bitset string pos out of range");
size_t __rlen = std::min(__n, __str.size() - __pos);
__init_from_string_view(basic_string_view<_CharT, _Traits>(__str.data() + __pos, __rlen), __zero, __one);
}
#endif
template <class _CharT, class _Traits, class _Allocator>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 explicit bitset(
const basic_string<_CharT, _Traits, _Allocator>& __str,
typename basic_string<_CharT, _Traits, _Allocator>::size_type __pos = 0,
typename basic_string<_CharT, _Traits, _Allocator>::size_type __n =
basic_string<_CharT, _Traits, _Allocator>::npos,
_CharT __zero = _CharT('0'),
_CharT __one = _CharT('1')) {
if (__pos > __str.size())
std::__throw_out_of_range("bitset string pos out of range");
size_t __rlen = std::min(__n, __str.size() - __pos);
__init_from_string_view(basic_string_view<_CharT, _Traits>(__str.data() + __pos, __rlen), __zero, __one);
}
// 23.3.5.2 bitset operations:
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset& operator&=(const bitset& __rhs) _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset& operator|=(const bitset& __rhs) _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset& operator^=(const bitset& __rhs) _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset& operator<<=(size_t __pos) _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset& operator>>=(size_t __pos) _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset& set() _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset& set(size_t __pos, bool __val = true);
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset& reset() _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset& reset(size_t __pos);
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset operator~() const _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset& flip() _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset& flip(size_t __pos);
// element access:
#ifdef _LIBCPP_ABI_BITSET_VECTOR_BOOL_CONST_SUBSCRIPT_RETURN_BOOL
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR bool operator[](size_t __p) const { return base::__make_ref(__p); }
#else
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR const_reference operator[](size_t __p) const { return base::__make_ref(__p); }
#endif
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 reference operator[](size_t __p) { return base::__make_ref(__p); }
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long to_ulong() const;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long long to_ullong() const;
template <class _CharT, class _Traits, class _Allocator>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 basic_string<_CharT, _Traits, _Allocator>
to_string(_CharT __zero = _CharT('0'), _CharT __one = _CharT('1')) const;
template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 basic_string<_CharT, _Traits, allocator<_CharT> >
to_string(_CharT __zero = _CharT('0'), _CharT __one = _CharT('1')) const;
template <class _CharT>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 basic_string<_CharT, char_traits<_CharT>, allocator<_CharT> >
to_string(_CharT __zero = _CharT('0'), _CharT __one = _CharT('1')) const;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 basic_string<char, char_traits<char>, allocator<char> >
to_string(char __zero = '0', char __one = '1') const;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 size_t count() const _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR size_t size() const _NOEXCEPT { return _Size; }
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool operator==(const bitset& __rhs) const _NOEXCEPT;
#if _LIBCPP_STD_VER <= 17
_LIBCPP_HIDE_FROM_ABI bool operator!=(const bitset& __rhs) const _NOEXCEPT;
#endif
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool test(size_t __pos) const;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool all() const _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool any() const _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool none() const _NOEXCEPT { return !any(); }
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset operator<<(size_t __pos) const _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset operator>>(size_t __pos) const _NOEXCEPT;
private:
template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void
__init_from_string_view(basic_string_view<_CharT, _Traits> __str, _CharT __zero, _CharT __one) {
for (size_t __i = 0; __i < __str.size(); ++__i)
if (!_Traits::eq(__str[__i], __zero) && !_Traits::eq(__str[__i], __one))
std::__throw_invalid_argument("bitset string ctor has invalid argument");
size_t __mp = std::min(__str.size(), _Size);
size_t __i = 0;
for (; __i < __mp; ++__i) {
_CharT __c = __str[__mp - 1 - __i];
(*this)[__i] = _Traits::eq(__c, __one);
}
std::fill(base::__make_iter(__i), base::__make_iter(_Size), false);
}
_LIBCPP_HIDE_FROM_ABI size_t __hash_code() const _NOEXCEPT { return base::__hash_code(); }
friend struct hash<bitset>;
};
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>&
bitset<_Size>::operator&=(const bitset& __rhs) _NOEXCEPT {
base::operator&=(__rhs);
return *this;
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>&
bitset<_Size>::operator|=(const bitset& __rhs) _NOEXCEPT {
base::operator|=(__rhs);
return *this;
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>&
bitset<_Size>::operator^=(const bitset& __rhs) _NOEXCEPT {
base::operator^=(__rhs);
return *this;
}
template <size_t _Size>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>& bitset<_Size>::operator<<=(size_t __pos) _NOEXCEPT {
__pos = std::min(__pos, _Size);
std::copy_backward(base::__make_iter(0), base::__make_iter(_Size - __pos), base::__make_iter(_Size));
std::fill_n(base::__make_iter(0), __pos, false);
return *this;
}
template <size_t _Size>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>& bitset<_Size>::operator>>=(size_t __pos) _NOEXCEPT {
__pos = std::min(__pos, _Size);
std::copy(base::__make_iter(__pos), base::__make_iter(_Size), base::__make_iter(0));
std::fill_n(base::__make_iter(_Size - __pos), __pos, false);
return *this;
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>& bitset<_Size>::set() _NOEXCEPT {
std::fill_n(base::__make_iter(0), _Size, true);
return *this;
}
template <size_t _Size>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>& bitset<_Size>::set(size_t __pos, bool __val) {
if (__pos >= _Size)
__throw_out_of_range("bitset set argument out of range");
(*this)[__pos] = __val;
return *this;
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>& bitset<_Size>::reset() _NOEXCEPT {
std::fill_n(base::__make_iter(0), _Size, false);
return *this;
}
template <size_t _Size>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>& bitset<_Size>::reset(size_t __pos) {
if (__pos >= _Size)
__throw_out_of_range("bitset reset argument out of range");
(*this)[__pos] = false;
return *this;
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size> bitset<_Size>::operator~() const _NOEXCEPT {
bitset __x(*this);
__x.flip();
return __x;
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>& bitset<_Size>::flip() _NOEXCEPT {
base::flip();
return *this;
}
template <size_t _Size>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>& bitset<_Size>::flip(size_t __pos) {
if (__pos >= _Size)
__throw_out_of_range("bitset flip argument out of range");
reference __r = base::__make_ref(__pos);
__r = ~__r;
return *this;
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long bitset<_Size>::to_ulong() const {
return base::to_ulong();
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long long bitset<_Size>::to_ullong() const {
return base::to_ullong();
}
template <size_t _Size>
template <class _CharT, class _Traits, class _Allocator>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 basic_string<_CharT, _Traits, _Allocator>
bitset<_Size>::to_string(_CharT __zero, _CharT __one) const {
basic_string<_CharT, _Traits, _Allocator> __r(_Size, __zero);
for (size_t __i = 0; __i != _Size; ++__i) {
if ((*this)[__i])
__r[_Size - 1 - __i] = __one;
}
return __r;
}
template <size_t _Size>
template <class _CharT, class _Traits>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 basic_string<_CharT, _Traits, allocator<_CharT> >
bitset<_Size>::to_string(_CharT __zero, _CharT __one) const {
return to_string<_CharT, _Traits, allocator<_CharT> >(__zero, __one);
}
template <size_t _Size>
template <class _CharT>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 basic_string<_CharT, char_traits<_CharT>, allocator<_CharT> >
bitset<_Size>::to_string(_CharT __zero, _CharT __one) const {
return to_string<_CharT, char_traits<_CharT>, allocator<_CharT> >(__zero, __one);
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 basic_string<char, char_traits<char>, allocator<char> >
bitset<_Size>::to_string(char __zero, char __one) const {
return to_string<char, char_traits<char>, allocator<char> >(__zero, __one);
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 size_t bitset<_Size>::count() const _NOEXCEPT {
return static_cast<size_t>(std::count(base::__make_iter(0), base::__make_iter(_Size), true));
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool
bitset<_Size>::operator==(const bitset& __rhs) const _NOEXCEPT {
return std::equal(base::__make_iter(0), base::__make_iter(_Size), __rhs.__make_iter(0));
}
#if _LIBCPP_STD_VER <= 17
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI bool bitset<_Size>::operator!=(const bitset& __rhs) const _NOEXCEPT {
return !(*this == __rhs);
}
#endif
template <size_t _Size>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool bitset<_Size>::test(size_t __pos) const {
if (__pos >= _Size)
__throw_out_of_range("bitset test argument out of range");
return (*this)[__pos];
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool bitset<_Size>::all() const _NOEXCEPT {
return base::all();
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool bitset<_Size>::any() const _NOEXCEPT {
return base::any();
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>
bitset<_Size>::operator<<(size_t __pos) const _NOEXCEPT {
bitset __r = *this;
__r <<= __pos;
return __r;
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>
bitset<_Size>::operator>>(size_t __pos) const _NOEXCEPT {
bitset __r = *this;
__r >>= __pos;
return __r;
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>
operator&(const bitset<_Size>& __x, const bitset<_Size>& __y) _NOEXCEPT {
bitset<_Size> __r = __x;
__r &= __y;
return __r;
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>
operator|(const bitset<_Size>& __x, const bitset<_Size>& __y) _NOEXCEPT {
bitset<_Size> __r = __x;
__r |= __y;
return __r;
}
template <size_t _Size>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>
operator^(const bitset<_Size>& __x, const bitset<_Size>& __y) _NOEXCEPT {
bitset<_Size> __r = __x;
__r ^= __y;
return __r;
}
template <size_t _Size>
struct _LIBCPP_TEMPLATE_VIS hash<bitset<_Size> > : public __unary_function<bitset<_Size>, size_t> {
_LIBCPP_HIDE_FROM_ABI size_t operator()(const bitset<_Size>& __bs) const _NOEXCEPT { return __bs.__hash_code(); }
};
template <class _CharT, class _Traits, size_t _Size>
_LIBCPP_HIDE_FROM_ABI basic_istream<_CharT, _Traits>&
operator>>(basic_istream<_CharT, _Traits>& __is, bitset<_Size>& __x);
template <class _CharT, class _Traits, size_t _Size>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const bitset<_Size>& __x);
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
# include <concepts>
# include <cstdlib>
# include <type_traits>
#endif
#endif // _LIBCPP_BITSET
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