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Unified Diff: third_party/libcxx/include/bitset

Issue 75213003: Add libc++ and libc++abi to third-party. (Closed) Base URL: https://src.chromium.org/chrome/trunk/src/
Patch Set: Created 7 years, 1 month ago
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Index: third_party/libcxx/include/bitset
===================================================================
--- third_party/libcxx/include/bitset (revision 0)
+++ third_party/libcxx/include/bitset (revision 0)
@@ -0,0 +1,1081 @@
+// -*- C++ -*-
+//===---------------------------- bitset ----------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#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'));
+ 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'));
+
+ // 23.3.5.2 bitset operations:
+ bitset& operator&=(const bitset& rhs) noexcept;
+ bitset& operator|=(const bitset& rhs) noexcept;
+ bitset& operator^=(const bitset& rhs) noexcept;
+ bitset& operator<<=(size_t pos) noexcept;
+ bitset& operator>>=(size_t pos) noexcept;
+ bitset& set() noexcept;
+ bitset& set(size_t pos, bool val = true);
+ bitset& reset() noexcept;
+ bitset& reset(size_t pos);
+ bitset operator~() const noexcept;
+ bitset& flip() noexcept;
+ bitset& flip(size_t pos);
+
+ // element access:
+ constexpr bool operator[](size_t pos) const; // for b[i];
+ reference operator[](size_t pos); // for b[i];
+ unsigned long to_ulong() const;
+ unsigned long long to_ullong() const;
+ template <class charT, class traits, class Allocator>
+ basic_string<charT, traits, Allocator> to_string(charT zero = charT('0'), charT one = charT('1')) const;
+ template <class charT, class traits>
+ basic_string<charT, traits, allocator<charT> > to_string(charT zero = charT('0'), charT one = charT('1')) const;
+ template <class charT>
+ 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;
+ size_t count() const noexcept;
+ constexpr size_t size() const noexcept;
+ bool operator==(const bitset& rhs) const noexcept;
+ bool operator!=(const bitset& rhs) const noexcept;
+ bool test(size_t pos) const;
+ bool all() const noexcept;
+ bool any() const noexcept;
+ bool none() const noexcept;
+ bitset operator<<(size_t pos) const noexcept;
+ bitset operator>>(size_t pos) const noexcept;
+};
+
+// 23.3.5.3 bitset operators:
+template <size_t N>
+bitset<N> operator&(const bitset<N>&, const bitset<N>&) noexcept;
+
+template <size_t N>
+bitset<N> operator|(const bitset<N>&, const bitset<N>&) noexcept;
+
+template <size_t N>
+bitset<N> operator^(const bitset<N>&, const bitset<N>&) noexcept;
+
+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
+
+*/
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#pragma GCC system_header
+#endif
+
+#include <__config>
+#include <__bit_reference>
+#include <cstddef>
+#include <climits>
+#include <string>
+#include <stdexcept>
+#include <iosfwd>
+#include <__functional_base>
+#if defined(_LIBCPP_NO_EXCEPTIONS)
+ #include <cassert>
+#endif
+
+#include <__undef_min_max>
+
+_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_CONSTEXPR __bitset() _NOEXCEPT;
+ explicit _LIBCPP_CONSTEXPR __bitset(unsigned long long __v) _NOEXCEPT;
+
+ _LIBCPP_INLINE_VISIBILITY 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 iterator __make_iter(size_t __pos) _NOEXCEPT
+ {return iterator(__first_ + __pos / __bits_per_word, __pos % __bits_per_word);}
+ _LIBCPP_INLINE_VISIBILITY const_iterator __make_iter(size_t __pos) const _NOEXCEPT
+ {return const_iterator(__first_ + __pos / __bits_per_word, __pos % __bits_per_word);}
+
+ void operator&=(const __bitset& __v) _NOEXCEPT;
+ void operator|=(const __bitset& __v) _NOEXCEPT;
+ void operator^=(const __bitset& __v) _NOEXCEPT;
+
+ void flip() _NOEXCEPT;
+ _LIBCPP_INLINE_VISIBILITY unsigned long to_ulong() const
+ {return to_ulong(integral_constant<bool, _Size < sizeof(unsigned long) * CHAR_BIT>());}
+ _LIBCPP_INLINE_VISIBILITY unsigned long long to_ullong() const
+ {return to_ullong(integral_constant<bool, _Size < sizeof(unsigned long long) * CHAR_BIT>());}
+
+ bool all() const _NOEXCEPT;
+ bool any() const _NOEXCEPT;
+ size_t __hash_code() const _NOEXCEPT;
+private:
+#ifdef _LIBCPP_HAS_NO_CONSTEXPR
+ void __init(unsigned long long __v, false_type) _NOEXCEPT;
+ void __init(unsigned long long __v, true_type) _NOEXCEPT;
+#endif // _LIBCPP_HAS_NO_CONSTEXPR
+ unsigned long to_ulong(false_type) const;
+ unsigned long to_ulong(true_type) const;
+ unsigned long long to_ullong(false_type) const;
+ unsigned long long to_ullong(true_type) const;
+ unsigned long long to_ullong(true_type, false_type) const;
+ unsigned long long to_ullong(true_type, true_type) const;
+};
+
+template <size_t _N_words, size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+_LIBCPP_CONSTEXPR
+__bitset<_N_words, _Size>::__bitset() _NOEXCEPT
+#ifndef _LIBCPP_HAS_NO_CONSTEXPR
+ : __first_{0}
+#endif
+{
+#ifdef _LIBCPP_HAS_NO_CONSTEXPR
+ _VSTD::fill_n(__first_, _N_words, __storage_type(0));
+#endif
+}
+
+#ifdef _LIBCPP_HAS_NO_CONSTEXPR
+
+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)];
+ for (size_t __i = 0; __i < sizeof(__t)/sizeof(__t[0]); ++__i, __v >>= __bits_per_word)
+ __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;
+ _VSTD::fill(__first_ + 1, __first_ + sizeof(__first_)/sizeof(__first_[0]), __storage_type(0));
+}
+
+#endif // _LIBCPP_HAS_NO_CONSTEXPR
+
+template <size_t _N_words, size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+_LIBCPP_CONSTEXPR
+__bitset<_N_words, _Size>::__bitset(unsigned long long __v) _NOEXCEPT
+#ifndef _LIBCPP_HAS_NO_CONSTEXPR
+#if __SIZE_WIDTH__ == 64
+ : __first_{__v}
+#elif __SIZE_WIDTH__ == 32
+ : __first_{__v, __v >> __bits_per_word}
+#else
+#error This constructor has not been ported to this platform
+#endif
+#endif
+{
+#ifdef _LIBCPP_HAS_NO_CONSTEXPR
+ __init(__v, integral_constant<bool, sizeof(unsigned long long) == sizeof(__storage_type)>());
+#endif
+}
+
+template <size_t _N_words, size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+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_INLINE_VISIBILITY
+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_INLINE_VISIBILITY
+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>
+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>
+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)
+#ifndef _LIBCPP_NO_EXCEPTIONS
+ throw overflow_error("bitset to_ulong overflow error");
+#else
+ assert(!"bitset to_ulong overflow error");
+#endif
+ return __first_[0];
+}
+
+template <size_t _N_words, size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+unsigned long
+__bitset<_N_words, _Size>::to_ulong(true_type) const
+{
+ return __first_[0];
+}
+
+template <size_t _N_words, size_t _Size>
+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)
+#ifndef _LIBCPP_NO_EXCEPTIONS
+ throw overflow_error("bitset to_ullong overflow error");
+#else
+ assert(!"bitset to_ullong overflow error");
+#endif
+ return to_ullong(true_type());
+}
+
+template <size_t _N_words, size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+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_INLINE_VISIBILITY
+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>
+unsigned long long
+__bitset<_N_words, _Size>::to_ullong(true_type, true_type) const
+{
+ unsigned long long __r = __first_[0];
+ for (std::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>
+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>
+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 _LIBCPP_INLINE_VISIBILITY
+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_CONSTEXPR __bitset() _NOEXCEPT;
+ explicit _LIBCPP_CONSTEXPR __bitset(unsigned long long __v) _NOEXCEPT;
+
+ _LIBCPP_INLINE_VISIBILITY 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 iterator __make_iter(size_t __pos) _NOEXCEPT
+ {return iterator(&__first_ + __pos / __bits_per_word, __pos % __bits_per_word);}
+ _LIBCPP_INLINE_VISIBILITY const_iterator __make_iter(size_t __pos) const _NOEXCEPT
+ {return const_iterator(&__first_ + __pos / __bits_per_word, __pos % __bits_per_word);}
+
+ void operator&=(const __bitset& __v) _NOEXCEPT;
+ void operator|=(const __bitset& __v) _NOEXCEPT;
+ void operator^=(const __bitset& __v) _NOEXCEPT;
+
+ void flip() _NOEXCEPT;
+
+ unsigned long to_ulong() const;
+ unsigned long long to_ullong() const;
+
+ bool all() const _NOEXCEPT;
+ bool any() const _NOEXCEPT;
+
+ size_t __hash_code() const _NOEXCEPT;
+};
+
+template <size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+_LIBCPP_CONSTEXPR
+__bitset<1, _Size>::__bitset() _NOEXCEPT
+ : __first_(0)
+{
+}
+
+template <size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+_LIBCPP_CONSTEXPR
+__bitset<1, _Size>::__bitset(unsigned long long __v) _NOEXCEPT
+ : __first_(static_cast<__storage_type>(__v))
+{
+}
+
+template <size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+void
+__bitset<1, _Size>::operator&=(const __bitset& __v) _NOEXCEPT
+{
+ __first_ &= __v.__first_;
+}
+
+template <size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+void
+__bitset<1, _Size>::operator|=(const __bitset& __v) _NOEXCEPT
+{
+ __first_ |= __v.__first_;
+}
+
+template <size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+void
+__bitset<1, _Size>::operator^=(const __bitset& __v) _NOEXCEPT
+{
+ __first_ ^= __v.__first_;
+}
+
+template <size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+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_INLINE_VISIBILITY
+unsigned long
+__bitset<1, _Size>::to_ulong() const
+{
+ return __first_;
+}
+
+template <size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+unsigned long long
+__bitset<1, _Size>::to_ullong() const
+{
+ return __first_;
+}
+
+template <size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+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_INLINE_VISIBILITY
+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 _LIBCPP_INLINE_VISIBILITY
+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_CONSTEXPR __bitset() _NOEXCEPT;
+ explicit _LIBCPP_CONSTEXPR __bitset(unsigned long long) _NOEXCEPT;
+
+ _LIBCPP_INLINE_VISIBILITY reference __make_ref(size_t) _NOEXCEPT
+ {return reference(0, 1);}
+ _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR const_reference __make_ref(size_t) const _NOEXCEPT
+ {return const_reference(0, 1);}
+ _LIBCPP_INLINE_VISIBILITY iterator __make_iter(size_t) _NOEXCEPT
+ {return iterator(0, 0);}
+ _LIBCPP_INLINE_VISIBILITY const_iterator __make_iter(size_t) const _NOEXCEPT
+ {return const_iterator(0, 0);}
+
+ _LIBCPP_INLINE_VISIBILITY void operator&=(const __bitset&) _NOEXCEPT {}
+ _LIBCPP_INLINE_VISIBILITY void operator|=(const __bitset&) _NOEXCEPT {}
+ _LIBCPP_INLINE_VISIBILITY void operator^=(const __bitset&) _NOEXCEPT {}
+
+ _LIBCPP_INLINE_VISIBILITY void flip() _NOEXCEPT {}
+
+ _LIBCPP_INLINE_VISIBILITY unsigned long to_ulong() const {return 0;}
+ _LIBCPP_INLINE_VISIBILITY unsigned long long to_ullong() const {return 0;}
+
+ _LIBCPP_INLINE_VISIBILITY bool all() const _NOEXCEPT {return true;}
+ _LIBCPP_INLINE_VISIBILITY bool any() const _NOEXCEPT {return false;}
+
+ _LIBCPP_INLINE_VISIBILITY size_t __hash_code() const _NOEXCEPT {return 0;}
+};
+
+inline _LIBCPP_INLINE_VISIBILITY
+_LIBCPP_CONSTEXPR
+__bitset<0, 0>::__bitset() _NOEXCEPT
+{
+}
+
+inline _LIBCPP_INLINE_VISIBILITY
+_LIBCPP_CONSTEXPR
+__bitset<0, 0>::__bitset(unsigned long long) _NOEXCEPT
+{
+}
+
+template <size_t _Size> class _LIBCPP_TYPE_VIS_ONLY bitset;
+template <size_t _Size> struct _LIBCPP_TYPE_VIS_ONLY hash<bitset<_Size> >;
+
+template <size_t _Size>
+class _LIBCPP_TYPE_VIS_ONLY 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>
+ 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>
+ 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:
+ bitset& operator&=(const bitset& __rhs) _NOEXCEPT;
+ bitset& operator|=(const bitset& __rhs) _NOEXCEPT;
+ bitset& operator^=(const bitset& __rhs) _NOEXCEPT;
+ bitset& operator<<=(size_t __pos) _NOEXCEPT;
+ bitset& operator>>=(size_t __pos) _NOEXCEPT;
+ bitset& set() _NOEXCEPT;
+ bitset& set(size_t __pos, bool __val = true);
+ bitset& reset() _NOEXCEPT;
+ bitset& reset(size_t __pos);
+ bitset operator~() const _NOEXCEPT;
+ bitset& flip() _NOEXCEPT;
+ bitset& flip(size_t __pos);
+
+ // element access:
+ _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
+ const_reference operator[](size_t __p) const {return base::__make_ref(__p);}
+ _LIBCPP_INLINE_VISIBILITY reference operator[](size_t __p) {return base::__make_ref(__p);}
+ unsigned long to_ulong() const;
+ unsigned long long to_ullong() const;
+ template <class _CharT, class _Traits, class _Allocator>
+ basic_string<_CharT, _Traits, _Allocator> to_string(_CharT __zero = _CharT('0'),
+ _CharT __one = _CharT('1')) const;
+ template <class _CharT, class _Traits>
+ basic_string<_CharT, _Traits, allocator<_CharT> > to_string(_CharT __zero = _CharT('0'),
+ _CharT __one = _CharT('1')) const;
+ template <class _CharT>
+ 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;
+ size_t count() const _NOEXCEPT;
+ _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR size_t size() const _NOEXCEPT {return _Size;}
+ bool operator==(const bitset& __rhs) const _NOEXCEPT;
+ bool operator!=(const bitset& __rhs) const _NOEXCEPT;
+ bool test(size_t __pos) const;
+ bool all() const _NOEXCEPT;
+ bool any() const _NOEXCEPT;
+ _LIBCPP_INLINE_VISIBILITY bool none() const _NOEXCEPT {return !any();}
+ bitset operator<<(size_t __pos) const _NOEXCEPT;
+ 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>
+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)
+#ifndef _LIBCPP_NO_EXCEPTIONS
+ throw invalid_argument("bitset string ctor has invalid argument");
+#else
+ assert(!"bitset string ctor has invalid argument");
+#endif
+ size_t _Mp = _VSTD::min(__rlen, _Size);
+ size_t __i = 0;
+ for (; __i < _Mp; ++__i)
+ {
+ _CharT __c = __str[_Mp - 1 - __i];
+ if (__c == __zero)
+ (*this)[__i] = false;
+ else
+ (*this)[__i] = true;
+ }
+ _VSTD::fill(base::__make_iter(__i), base::__make_iter(_Size), false);
+}
+
+template <size_t _Size>
+template<class _CharT, class _Traits, class _Allocator>
+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())
+#ifndef _LIBCPP_NO_EXCEPTIONS
+ throw out_of_range("bitset string pos out of range");
+#else
+ assert(!"bitset string pos out of range");
+#endif
+ 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))
+#ifndef _LIBCPP_NO_EXCEPTIONS
+ throw invalid_argument("bitset string ctor has invalid argument");
+#else
+ assert(!"bitset string ctor has invalid argument");
+#endif
+ size_t _Mp = _VSTD::min(__rlen, _Size);
+ size_t __i = 0;
+ for (; __i < _Mp; ++__i)
+ {
+ _CharT __c = __str[__pos + _Mp - 1 - __i];
+ if (_Traits::eq(__c, __zero))
+ (*this)[__i] = false;
+ else
+ (*this)[__i] = true;
+ }
+ _VSTD::fill(base::__make_iter(__i), base::__make_iter(_Size), false);
+}
+
+template <size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+bitset<_Size>&
+bitset<_Size>::operator&=(const bitset& __rhs) _NOEXCEPT
+{
+ base::operator&=(__rhs);
+ return *this;
+}
+
+template <size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+bitset<_Size>&
+bitset<_Size>::operator|=(const bitset& __rhs) _NOEXCEPT
+{
+ base::operator|=(__rhs);
+ return *this;
+}
+
+template <size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+bitset<_Size>&
+bitset<_Size>::operator^=(const bitset& __rhs) _NOEXCEPT
+{
+ base::operator^=(__rhs);
+ return *this;
+}
+
+template <size_t _Size>
+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>
+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_INLINE_VISIBILITY
+bitset<_Size>&
+bitset<_Size>::set() _NOEXCEPT
+{
+ _VSTD::fill_n(base::__make_iter(0), _Size, true);
+ return *this;
+}
+
+template <size_t _Size>
+bitset<_Size>&
+bitset<_Size>::set(size_t __pos, bool __val)
+{
+ if (__pos >= _Size)
+#ifndef _LIBCPP_NO_EXCEPTIONS
+ throw out_of_range("bitset set argument out of range");
+#else
+ assert(!"bitset set argument out of range");
+#endif
+ (*this)[__pos] = __val;
+ return *this;
+}
+
+template <size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+bitset<_Size>&
+bitset<_Size>::reset() _NOEXCEPT
+{
+ _VSTD::fill_n(base::__make_iter(0), _Size, false);
+ return *this;
+}
+
+template <size_t _Size>
+bitset<_Size>&
+bitset<_Size>::reset(size_t __pos)
+{
+ if (__pos >= _Size)
+#ifndef _LIBCPP_NO_EXCEPTIONS
+ throw out_of_range("bitset reset argument out of range");
+#else
+ assert(!"bitset reset argument out of range");
+#endif
+ (*this)[__pos] = false;
+ return *this;
+}
+
+template <size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+bitset<_Size>
+bitset<_Size>::operator~() const _NOEXCEPT
+{
+ bitset __x(*this);
+ __x.flip();
+ return __x;
+}
+
+template <size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+bitset<_Size>&
+bitset<_Size>::flip() _NOEXCEPT
+{
+ base::flip();
+ return *this;
+}
+
+template <size_t _Size>
+bitset<_Size>&
+bitset<_Size>::flip(size_t __pos)
+{
+ if (__pos >= _Size)
+#ifndef _LIBCPP_NO_EXCEPTIONS
+ throw out_of_range("bitset flip argument out of range");
+#else
+ assert(!"bitset flip argument out of range");
+#endif
+ reference r = base::__make_ref(__pos);
+ r = ~r;
+ return *this;
+}
+
+template <size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+unsigned long
+bitset<_Size>::to_ulong() const
+{
+ return base::to_ulong();
+}
+
+template <size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+unsigned long long
+bitset<_Size>::to_ullong() const
+{
+ return base::to_ullong();
+}
+
+template <size_t _Size>
+template <class _CharT, class _Traits, class _Allocator>
+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_INLINE_VISIBILITY
+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_INLINE_VISIBILITY
+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_INLINE_VISIBILITY
+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_INLINE_VISIBILITY
+size_t
+bitset<_Size>::count() const _NOEXCEPT
+{
+ return static_cast<size_t>(_VSTD::count(base::__make_iter(0), base::__make_iter(_Size), true));
+}
+
+template <size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+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_INLINE_VISIBILITY
+bool
+bitset<_Size>::operator!=(const bitset& __rhs) const _NOEXCEPT
+{
+ return !(*this == __rhs);
+}
+
+template <size_t _Size>
+bool
+bitset<_Size>::test(size_t __pos) const
+{
+ if (__pos >= _Size)
+#ifndef _LIBCPP_NO_EXCEPTIONS
+ throw out_of_range("bitset test argument out of range");
+#else
+ assert(!"bitset test argument out of range");
+#endif
+ return (*this)[__pos];
+}
+
+template <size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+bool
+bitset<_Size>::all() const _NOEXCEPT
+{
+ return base::all();
+}
+
+template <size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+bool
+bitset<_Size>::any() const _NOEXCEPT
+{
+ return base::any();
+}
+
+template <size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY
+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
+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
+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
+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
+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_TYPE_VIS_ONLY hash<bitset<_Size> >
+ : public unary_function<bitset<_Size>, size_t>
+{
+ _LIBCPP_INLINE_VISIBILITY
+ size_t operator()(const bitset<_Size>& __bs) const _NOEXCEPT
+ {return __bs.__hash_code();}
+};
+
+template <class _CharT, class _Traits, size_t _Size>
+basic_istream<_CharT, _Traits>&
+operator>>(basic_istream<_CharT, _Traits>& __is, bitset<_Size>& __x);
+
+template <class _CharT, class _Traits, size_t _Size>
+basic_ostream<_CharT, _Traits>&
+operator<<(basic_ostream<_CharT, _Traits>& __os, const bitset<_Size>& __x);
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP_BITSET
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