// -*- 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

/*

    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>

        explicit bitset(const charT* str,

                        typename basic_string<charT>::size_type n = basic_string<charT>::npos,

                        charT zero = charT('0'), charT one = charT('1')); // constexpr since C++23

    template<class charT, class traits, class Allocator>

        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; // constexpr since C++23

    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

*/

#include <__algorithm/fill.h>

#include <__assert> // all public C++ headers provide the assertion handler

#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 <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_INLINE_VISIBILITY

    _LIBCPP_CONSTEXPR __bitset() _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY

    explicit _LIBCPP_CONSTEXPR __bitset(unsigned long long __v) _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY _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_INLINE_VISIBILITY _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_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23 iterator __make_iter(size_t __pos) _NOEXCEPT

        {return iterator(__first_ + __pos / __bits_per_word, __pos % __bits_per_word);}

    _LIBCPP_INLINE_VISIBILITY _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_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    void operator&=(const __bitset& __v) _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    void operator|=(const __bitset& __v) _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    void operator^=(const __bitset& __v) _NOEXCEPT;

    _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void flip() _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long to_ulong() const

        {return to_ulong(integral_constant<bool, _Size < sizeof(unsigned long) * CHAR_BIT>());}

    _LIBCPP_INLINE_VISIBILITY _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_INLINE_VISIBILITY

    size_t __hash_code() const _NOEXCEPT;

private:

#ifdef _LIBCPP_CXX03_LANG

    void __init(unsigned long long __v, false_type) _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY

    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_INLINE_VISIBILITY _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_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    unsigned long long to_ullong(true_type) const;

    _LIBCPP_INLINE_VISIBILITY _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

    _VSTD::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);

    _VSTD::copy(__t, __t + sizeof(__t)/sizeof(__t[0]), __first_);

    _VSTD::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_INLINE_VISIBILITY

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;

    _VSTD::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 = _VSTD::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 = _VSTD::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];

    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);

    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_INLINE_VISIBILITY

    _LIBCPP_CONSTEXPR __bitset() _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY

    explicit _LIBCPP_CONSTEXPR __bitset(unsigned long long __v) _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23 reference __make_ref(size_t __pos) _NOEXCEPT

        {return reference(&__first_, __storage_type(1) << __pos);}

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR const_reference __make_ref(size_t __pos) const _NOEXCEPT

        {return const_reference(&__first_, __storage_type(1) << __pos);}

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23 iterator __make_iter(size_t __pos) _NOEXCEPT

        {return iterator(&__first_ + __pos / __bits_per_word, __pos % __bits_per_word);}

    _LIBCPP_INLINE_VISIBILITY _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_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    void operator&=(const __bitset& __v) _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    void operator|=(const __bitset& __v) _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    void operator^=(const __bitset& __v) _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    void flip() _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    unsigned long to_ulong() const;

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    unsigned long long to_ullong() const;

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    bool all() const _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    bool any() const _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY

    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_INLINE_VISIBILITY

    _LIBCPP_CONSTEXPR __bitset() _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY

    explicit _LIBCPP_CONSTEXPR __bitset(unsigned long long) _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23 reference __make_ref(size_t) _NOEXCEPT

        {return reference(nullptr, 1);}

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR const_reference __make_ref(size_t) const _NOEXCEPT

        {return const_reference(nullptr, 1);}

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23 iterator __make_iter(size_t) _NOEXCEPT

        {return iterator(nullptr, 0);}

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23 const_iterator __make_iter(size_t) const _NOEXCEPT

        {return const_iterator(nullptr, 0);}

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23 void operator&=(const __bitset&) _NOEXCEPT {}

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23 void operator|=(const __bitset&) _NOEXCEPT {}

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23 void operator^=(const __bitset&) _NOEXCEPT {}

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23 void flip() _NOEXCEPT {}

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long to_ulong() const {return 0;}

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long long to_ullong() const {return 0;}

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23 bool all() const _NOEXCEPT {return true;}

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23 bool any() const _NOEXCEPT {return false;}

    _LIBCPP_INLINE_VISIBILITY 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_INLINE_VISIBILITY _LIBCPP_CONSTEXPR bitset() _NOEXCEPT {}

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR

        bitset(unsigned long long __v) _NOEXCEPT : base(__v) {}

    template<class _CharT, class = __enable_if_t<_IsCharLikeType<_CharT>::value> >

    _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23

        explicit bitset(const _CharT* __str,

                        typename basic_string<_CharT>::size_type __n = basic_string<_CharT>::npos,

                        _CharT __zero = _CharT('0'), _CharT __one = _CharT('1'));

    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'));

    // 23.3.5.2 bitset operations:

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    bitset& operator&=(const bitset& __rhs) _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    bitset& operator|=(const bitset& __rhs) _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY _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_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    bitset& set() _NOEXCEPT;

    _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23

    bitset& set(size_t __pos, bool __val = true);

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    bitset& reset() _NOEXCEPT;

    _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23

    bitset& reset(size_t __pos);

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    bitset  operator~() const _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY _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_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    unsigned long to_ulong() const;

    _LIBCPP_INLINE_VISIBILITY _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_INLINE_VISIBILITY _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_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

        basic_string<_CharT, char_traits<_CharT>, allocator<_CharT> > to_string(_CharT __zero = _CharT('0'),

                                                                                _CharT __one = _CharT('1')) const;

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    basic_string<char, char_traits<char>, allocator<char> > to_string(char __zero = '0',

                                                                      char __one = '1') const;

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    size_t count() const _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR size_t size() const _NOEXCEPT {return _Size;}

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    bool operator==(const bitset& __rhs) const _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    bool operator!=(const bitset& __rhs) const _NOEXCEPT;

    _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23

    bool test(size_t __pos) const;

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    bool all() const _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    bool any() const _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23 bool none() const _NOEXCEPT {return !any();}

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    bitset operator<<(size_t __pos) const _NOEXCEPT;

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23

    bitset operator>>(size_t __pos) const _NOEXCEPT;

private:

    _LIBCPP_INLINE_VISIBILITY

    size_t __hash_code() const _NOEXCEPT {return base::__hash_code();}

    friend struct hash<bitset>;

};

template <size_t _Size>

template<class _CharT, class>

_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23

bitset<_Size>::bitset(const _CharT* __str,

                      typename basic_string<_CharT>::size_type __n,

                      _CharT __zero, _CharT __one)

{

    size_t __rlen = _VSTD::min(__n, char_traits<_CharT>::length(__str));

    for (size_t __i = 0; __i < __rlen; ++__i)

        if (__str[__i] != __zero && __str[__i] != __one)

            __throw_invalid_argument("bitset string ctor has invalid argument");

    size_t _Mp = _VSTD::min(__rlen, _Size);

    size_t __i = 0;

    for (; __i < _Mp; ++__i)

    {

        _CharT __c = __str[_Mp - 1 - __i];

        (*this)[__i] = (__c == __one);

    }

    _VSTD::fill(base::__make_iter(__i), base::__make_iter(_Size), false);

}

template <size_t _Size>

template<class _CharT, class _Traits, class _Allocator>

_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23

bitset<_Size>::bitset(const basic_string<_CharT,_Traits,_Allocator>& __str,

       typename basic_string<_CharT,_Traits,_Allocator>::size_type __pos,

       typename basic_string<_CharT,_Traits,_Allocator>::size_type __n,

       _CharT __zero, _CharT __one)

{

    if (__pos > __str.size())

        __throw_out_of_range("bitset string pos out of range");

    size_t __rlen = _VSTD::min(__n, __str.size() - __pos);

    for (size_t __i = __pos; __i < __pos + __rlen; ++__i)

        if (!_Traits::eq(__str[__i], __zero) && !_Traits::eq(__str[__i], __one))

            __throw_invalid_argument("bitset string ctor has invalid argument");

    size_t _Mp = _VSTD::min(__rlen, _Size);

    size_t __i = 0;

    for (; __i < _Mp; ++__i)

    {

        _CharT __c = __str[__pos + _Mp - 1 - __i];

        (*this)[__i] = _Traits::eq(__c, __one);

    }

    _VSTD::fill(base::__make_iter(__i), base::__make_iter(_Size), false);

}

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 = _VSTD::min(__pos, _Size);

    _VSTD::copy_backward(base::__make_iter(0), base::__make_iter(_Size - __pos), base::__make_iter(_Size));

    _VSTD::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 = _VSTD::min(__pos, _Size);

    _VSTD::copy(base::__make_iter(__pos), base::__make_iter(_Size), base::__make_iter(0));

    _VSTD::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

{

    _VSTD::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

{

    _VSTD::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>(_VSTD::__count_bool_true(base::__make_iter(0), _Size));

}

template <size_t _Size>

inline

_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23

bool

bitset<_Size>::operator==(const bitset& __rhs) const _NOEXCEPT

{

    return _VSTD::equal(base::__make_iter(0), base::__make_iter(_Size), __rhs.__make_iter(0));

}

template <size_t _Size>

inline

_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23

bool

bitset<_Size>::operator!=(const bitset& __rhs) const _NOEXCEPT

{

    return !(*this == __rhs);

}

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_INLINE_VISIBILITY _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_INLINE_VISIBILITY _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_INLINE_VISIBILITY _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>