// -*- 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; __has_storage_type<__bitset<_N_words, _Size>>; template <size_t _N_words, size_t _Size> class __bitset { … }; template <size_t _N_words, size_t _Size> inline _LIBCPP_CONSTEXPR __bitset<_N_words, _Size>::__bitset() _NOEXCEPT #ifndef _LIBCPP_CXX03_LANG : … { … } #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 : … { … } 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 { … } 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 { … } 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 { … } template <size_t _N_words, size_t _Size> _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void __bitset<_N_words, _Size>::flip() _NOEXCEPT { … } 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 { … } 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 { … } 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 { … } 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 { … } 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 { … } 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 { … } template <size_t _N_words, size_t _Size> _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool __bitset<_N_words, _Size>::all() const _NOEXCEPT { … } template <size_t _N_words, size_t _Size> _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool __bitset<_N_words, _Size>::any() const _NOEXCEPT { … } template <size_t _N_words, size_t _Size> inline size_t __bitset<_N_words, _Size>::__hash_code() const _NOEXCEPT { … } __bitset<1, _Size>; template <size_t _Size> inline _LIBCPP_CONSTEXPR __bitset<1, _Size>::__bitset() _NOEXCEPT : … { … } template <size_t _Size> inline _LIBCPP_CONSTEXPR __bitset<1, _Size>::__bitset(unsigned long long __v) _NOEXCEPT : … { … } template <size_t _Size> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void __bitset<1, _Size>::operator&=(const __bitset& __v) _NOEXCEPT { … } template <size_t _Size> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void __bitset<1, _Size>::operator|=(const __bitset& __v) _NOEXCEPT { … } template <size_t _Size> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void __bitset<1, _Size>::operator^=(const __bitset& __v) _NOEXCEPT { … } template <size_t _Size> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 void __bitset<1, _Size>::flip() _NOEXCEPT { … } template <size_t _Size> inline _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long __bitset<1, _Size>::to_ulong() const { … } template <size_t _Size> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long long __bitset<1, _Size>::to_ullong() const { … } template <size_t _Size> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool __bitset<1, _Size>::all() const _NOEXCEPT { … } template <size_t _Size> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool __bitset<1, _Size>::any() const _NOEXCEPT { … } template <size_t _Size> inline size_t __bitset<1, _Size>::__hash_code() const _NOEXCEPT { … } template <> class __bitset<0, 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; 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> { … }; template <size_t _Size> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>& bitset<_Size>::operator&=(const bitset& __rhs) _NOEXCEPT { … } template <size_t _Size> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>& bitset<_Size>::operator|=(const bitset& __rhs) _NOEXCEPT { … } template <size_t _Size> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>& bitset<_Size>::operator^=(const bitset& __rhs) _NOEXCEPT { … } template <size_t _Size> _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>& bitset<_Size>::operator<<=(size_t __pos) _NOEXCEPT { … } template <size_t _Size> _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>& bitset<_Size>::operator>>=(size_t __pos) _NOEXCEPT { … } template <size_t _Size> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>& bitset<_Size>::set() _NOEXCEPT { … } template <size_t _Size> _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>& bitset<_Size>::set(size_t __pos, bool __val) { … } template <size_t _Size> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>& bitset<_Size>::reset() _NOEXCEPT { … } template <size_t _Size> _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>& bitset<_Size>::reset(size_t __pos) { … } template <size_t _Size> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size> bitset<_Size>::operator~() const _NOEXCEPT { … } template <size_t _Size> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>& bitset<_Size>::flip() _NOEXCEPT { … } template <size_t _Size> _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size>& bitset<_Size>::flip(size_t __pos) { … } template <size_t _Size> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long bitset<_Size>::to_ulong() const { … } template <size_t _Size> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 unsigned long long bitset<_Size>::to_ullong() const { … } 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 { … } 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 { … } 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 { … } 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 { … } template <size_t _Size> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 size_t bitset<_Size>::count() const _NOEXCEPT { … } template <size_t _Size> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool bitset<_Size>::operator==(const bitset& __rhs) const _NOEXCEPT { … } #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 { … } template <size_t _Size> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool bitset<_Size>::all() const _NOEXCEPT { … } template <size_t _Size> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bool bitset<_Size>::any() const _NOEXCEPT { … } template <size_t _Size> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size> bitset<_Size>::operator<<(size_t __pos) const _NOEXCEPT { … } template <size_t _Size> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX23 bitset<_Size> bitset<_Size>::operator>>(size_t __pos) const _NOEXCEPT { … } 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 { … } 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 { … } 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 { … } hash<bitset<_Size>>; 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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