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- // vector<bool> specialization -*- C++ -*-
- // Copyright (C) 2001-2022 Free Software Foundation, Inc.
- //
- // This file is part of the GNU ISO C++ Library. This library is free
- // software; you can redistribute it and/or modify it under the
- // terms of the GNU General Public License as published by the
- // Free Software Foundation; either version 3, or (at your option)
- // any later version.
- // This library is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- // GNU General Public License for more details.
- // Under Section 7 of GPL version 3, you are granted additional
- // permissions described in the GCC Runtime Library Exception, version
- // 3.1, as published by the Free Software Foundation.
- // You should have received a copy of the GNU General Public License and
- // a copy of the GCC Runtime Library Exception along with this program;
- // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
- // <http://www.gnu.org/licenses/>.
- /*
- *
- * Copyright (c) 1994
- * Hewlett-Packard Company
- *
- * Permission to use, copy, modify, distribute and sell this software
- * and its documentation for any purpose is hereby granted without fee,
- * provided that the above copyright notice appear in all copies and
- * that both that copyright notice and this permission notice appear
- * in supporting documentation. Hewlett-Packard Company makes no
- * representations about the suitability of this software for any
- * purpose. It is provided "as is" without express or implied warranty.
- *
- *
- * Copyright (c) 1996-1999
- * Silicon Graphics Computer Systems, Inc.
- *
- * Permission to use, copy, modify, distribute and sell this software
- * and its documentation for any purpose is hereby granted without fee,
- * provided that the above copyright notice appear in all copies and
- * that both that copyright notice and this permission notice appear
- * in supporting documentation. Silicon Graphics makes no
- * representations about the suitability of this software for any
- * purpose. It is provided "as is" without express or implied warranty.
- */
- /** @file bits/stl_bvector.h
- * This is an internal header file, included by other library headers.
- * Do not attempt to use it directly. @headername{vector}
- */
- #ifndef _STL_BVECTOR_H
- #define _STL_BVECTOR_H 1
- #if __cplusplus >= 201103L
- #include <initializer_list>
- #include <bits/functional_hash.h>
- #endif
- namespace std _GLIBCXX_VISIBILITY(default)
- {
- _GLIBCXX_BEGIN_NAMESPACE_VERSION
- typedef unsigned long _Bit_type;
- enum { _S_word_bit = int(__CHAR_BIT__ * sizeof(_Bit_type)) };
- __attribute__((__nonnull__))
- _GLIBCXX20_CONSTEXPR
- void
- __fill_bvector_n(_Bit_type*, size_t, bool) _GLIBCXX_NOEXCEPT;
- _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
- struct _Bit_reference
- {
- _Bit_type * _M_p;
- _Bit_type _M_mask;
- _GLIBCXX20_CONSTEXPR
- _Bit_reference(_Bit_type * __x, _Bit_type __y)
- : _M_p(__x), _M_mask(__y) { }
- _GLIBCXX20_CONSTEXPR
- _Bit_reference() _GLIBCXX_NOEXCEPT : _M_p(0), _M_mask(0) { }
- #if __cplusplus >= 201103L
- _Bit_reference(const _Bit_reference&) = default;
- #endif
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- operator bool() const _GLIBCXX_NOEXCEPT
- { return !!(*_M_p & _M_mask); }
- _GLIBCXX20_CONSTEXPR
- _Bit_reference&
- operator=(bool __x) _GLIBCXX_NOEXCEPT
- {
- if (__x)
- *_M_p |= _M_mask;
- else
- *_M_p &= ~_M_mask;
- return *this;
- }
- _GLIBCXX20_CONSTEXPR
- _Bit_reference&
- operator=(const _Bit_reference& __x) _GLIBCXX_NOEXCEPT
- { return *this = bool(__x); }
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- bool
- operator==(const _Bit_reference& __x) const
- { return bool(*this) == bool(__x); }
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- bool
- operator<(const _Bit_reference& __x) const
- { return !bool(*this) && bool(__x); }
- _GLIBCXX20_CONSTEXPR
- void
- flip() _GLIBCXX_NOEXCEPT
- { *_M_p ^= _M_mask; }
- #if __cplusplus >= 201103L
- _GLIBCXX20_CONSTEXPR
- friend void
- swap(_Bit_reference __x, _Bit_reference __y) noexcept
- {
- bool __tmp = __x;
- __x = __y;
- __y = __tmp;
- }
- _GLIBCXX20_CONSTEXPR
- friend void
- swap(_Bit_reference __x, bool& __y) noexcept
- {
- bool __tmp = __x;
- __x = __y;
- __y = __tmp;
- }
- _GLIBCXX20_CONSTEXPR
- friend void
- swap(bool& __x, _Bit_reference __y) noexcept
- {
- bool __tmp = __x;
- __x = __y;
- __y = __tmp;
- }
- #endif
- };
- // Ignore warnings about std::iterator.
- #pragma GCC diagnostic push
- #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
- struct _Bit_iterator_base
- : public std::iterator<std::random_access_iterator_tag, bool>
- {
- _Bit_type * _M_p;
- unsigned int _M_offset;
- _GLIBCXX20_CONSTEXPR
- _Bit_iterator_base(_Bit_type * __x, unsigned int __y)
- : _M_p(__x), _M_offset(__y) { }
- _GLIBCXX20_CONSTEXPR
- void
- _M_bump_up()
- {
- if (_M_offset++ == int(_S_word_bit) - 1)
- {
- _M_offset = 0;
- ++_M_p;
- }
- }
- _GLIBCXX20_CONSTEXPR
- void
- _M_bump_down()
- {
- if (_M_offset-- == 0)
- {
- _M_offset = int(_S_word_bit) - 1;
- --_M_p;
- }
- }
- _GLIBCXX20_CONSTEXPR
- void
- _M_incr(ptrdiff_t __i)
- {
- difference_type __n = __i + _M_offset;
- _M_p += __n / int(_S_word_bit);
- __n = __n % int(_S_word_bit);
- if (__n < 0)
- {
- __n += int(_S_word_bit);
- --_M_p;
- }
- _M_offset = static_cast<unsigned int>(__n);
- }
- _GLIBCXX_NODISCARD
- friend _GLIBCXX20_CONSTEXPR bool
- operator==(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y)
- { return __x._M_p == __y._M_p && __x._M_offset == __y._M_offset; }
- #if __cpp_lib_three_way_comparison
- [[nodiscard]]
- friend constexpr strong_ordering
- operator<=>(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y)
- noexcept
- {
- if (const auto __cmp = __x._M_p <=> __y._M_p; __cmp != 0)
- return __cmp;
- return __x._M_offset <=> __y._M_offset;
- }
- #else
- _GLIBCXX_NODISCARD
- friend bool
- operator<(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y)
- {
- return __x._M_p < __y._M_p
- || (__x._M_p == __y._M_p && __x._M_offset < __y._M_offset);
- }
- _GLIBCXX_NODISCARD
- friend bool
- operator!=(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y)
- { return !(__x == __y); }
- _GLIBCXX_NODISCARD
- friend bool
- operator>(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y)
- { return __y < __x; }
- _GLIBCXX_NODISCARD
- friend bool
- operator<=(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y)
- { return !(__y < __x); }
- _GLIBCXX_NODISCARD
- friend bool
- operator>=(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y)
- { return !(__x < __y); }
- #endif // three-way comparison
- friend _GLIBCXX20_CONSTEXPR ptrdiff_t
- operator-(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y)
- {
- return (int(_S_word_bit) * (__x._M_p - __y._M_p)
- + __x._M_offset - __y._M_offset);
- }
- };
- #pragma GCC diagnostic pop
- struct _Bit_iterator : public _Bit_iterator_base
- {
- typedef _Bit_reference reference;
- #if __cplusplus > 201703L
- typedef void pointer;
- #else
- typedef _Bit_reference* pointer;
- #endif
- typedef _Bit_iterator iterator;
- _GLIBCXX20_CONSTEXPR
- _Bit_iterator() : _Bit_iterator_base(0, 0) { }
- _GLIBCXX20_CONSTEXPR
- _Bit_iterator(_Bit_type * __x, unsigned int __y)
- : _Bit_iterator_base(__x, __y) { }
- _GLIBCXX20_CONSTEXPR
- iterator
- _M_const_cast() const
- { return *this; }
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- reference
- operator*() const
- { return reference(_M_p, 1UL << _M_offset); }
- _GLIBCXX20_CONSTEXPR
- iterator&
- operator++()
- {
- _M_bump_up();
- return *this;
- }
- _GLIBCXX20_CONSTEXPR
- iterator
- operator++(int)
- {
- iterator __tmp = *this;
- _M_bump_up();
- return __tmp;
- }
- _GLIBCXX20_CONSTEXPR
- iterator&
- operator--()
- {
- _M_bump_down();
- return *this;
- }
- _GLIBCXX20_CONSTEXPR
- iterator
- operator--(int)
- {
- iterator __tmp = *this;
- _M_bump_down();
- return __tmp;
- }
- _GLIBCXX20_CONSTEXPR
- iterator&
- operator+=(difference_type __i)
- {
- _M_incr(__i);
- return *this;
- }
- _GLIBCXX20_CONSTEXPR
- iterator&
- operator-=(difference_type __i)
- {
- *this += -__i;
- return *this;
- }
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- reference
- operator[](difference_type __i) const
- { return *(*this + __i); }
- _GLIBCXX_NODISCARD
- friend _GLIBCXX20_CONSTEXPR iterator
- operator+(const iterator& __x, difference_type __n)
- {
- iterator __tmp = __x;
- __tmp += __n;
- return __tmp;
- }
- _GLIBCXX_NODISCARD
- friend _GLIBCXX20_CONSTEXPR iterator
- operator+(difference_type __n, const iterator& __x)
- { return __x + __n; }
- _GLIBCXX_NODISCARD
- friend _GLIBCXX20_CONSTEXPR iterator
- operator-(const iterator& __x, difference_type __n)
- {
- iterator __tmp = __x;
- __tmp -= __n;
- return __tmp;
- }
- };
- struct _Bit_const_iterator : public _Bit_iterator_base
- {
- typedef bool reference;
- typedef bool const_reference;
- #if __cplusplus > 201703L
- typedef void pointer;
- #else
- typedef const bool* pointer;
- #endif
- typedef _Bit_const_iterator const_iterator;
- _GLIBCXX20_CONSTEXPR
- _Bit_const_iterator() : _Bit_iterator_base(0, 0) { }
- _GLIBCXX20_CONSTEXPR
- _Bit_const_iterator(_Bit_type * __x, unsigned int __y)
- : _Bit_iterator_base(__x, __y) { }
- _GLIBCXX20_CONSTEXPR
- _Bit_const_iterator(const _Bit_iterator& __x)
- : _Bit_iterator_base(__x._M_p, __x._M_offset) { }
- _GLIBCXX20_CONSTEXPR
- _Bit_iterator
- _M_const_cast() const
- { return _Bit_iterator(_M_p, _M_offset); }
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- const_reference
- operator*() const
- { return _Bit_reference(_M_p, 1UL << _M_offset); }
- _GLIBCXX20_CONSTEXPR
- const_iterator&
- operator++()
- {
- _M_bump_up();
- return *this;
- }
- _GLIBCXX20_CONSTEXPR
- const_iterator
- operator++(int)
- {
- const_iterator __tmp = *this;
- _M_bump_up();
- return __tmp;
- }
- _GLIBCXX20_CONSTEXPR
- const_iterator&
- operator--()
- {
- _M_bump_down();
- return *this;
- }
- _GLIBCXX20_CONSTEXPR
- const_iterator
- operator--(int)
- {
- const_iterator __tmp = *this;
- _M_bump_down();
- return __tmp;
- }
- _GLIBCXX20_CONSTEXPR
- const_iterator&
- operator+=(difference_type __i)
- {
- _M_incr(__i);
- return *this;
- }
- _GLIBCXX20_CONSTEXPR
- const_iterator&
- operator-=(difference_type __i)
- {
- *this += -__i;
- return *this;
- }
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- const_reference
- operator[](difference_type __i) const
- { return *(*this + __i); }
- _GLIBCXX_NODISCARD
- friend _GLIBCXX20_CONSTEXPR const_iterator
- operator+(const const_iterator& __x, difference_type __n)
- {
- const_iterator __tmp = __x;
- __tmp += __n;
- return __tmp;
- }
- _GLIBCXX_NODISCARD
- friend _GLIBCXX20_CONSTEXPR const_iterator
- operator-(const const_iterator& __x, difference_type __n)
- {
- const_iterator __tmp = __x;
- __tmp -= __n;
- return __tmp;
- }
- _GLIBCXX_NODISCARD
- friend _GLIBCXX20_CONSTEXPR const_iterator
- operator+(difference_type __n, const const_iterator& __x)
- { return __x + __n; }
- };
- template<typename _Alloc>
- struct _Bvector_base
- {
- typedef typename __gnu_cxx::__alloc_traits<_Alloc>::template
- rebind<_Bit_type>::other _Bit_alloc_type;
- typedef typename __gnu_cxx::__alloc_traits<_Bit_alloc_type>
- _Bit_alloc_traits;
- typedef typename _Bit_alloc_traits::pointer _Bit_pointer;
- struct _Bvector_impl_data
- {
- #if !_GLIBCXX_INLINE_VERSION
- _Bit_iterator _M_start;
- #else
- // We don't need the offset field for the start, it's always zero.
- struct {
- _Bit_type* _M_p;
- // Allow assignment from iterators (assume offset is zero):
- _GLIBCXX20_CONSTEXPR
- void operator=(_Bit_iterator __it) { _M_p = __it._M_p; }
- } _M_start;
- #endif
- _Bit_iterator _M_finish;
- _Bit_pointer _M_end_of_storage;
- _GLIBCXX20_CONSTEXPR
- _Bvector_impl_data() _GLIBCXX_NOEXCEPT
- : _M_start(), _M_finish(), _M_end_of_storage()
- { }
- #if __cplusplus >= 201103L
- _Bvector_impl_data(const _Bvector_impl_data&) = default;
- _Bvector_impl_data&
- operator=(const _Bvector_impl_data&) = default;
- _GLIBCXX20_CONSTEXPR
- _Bvector_impl_data(_Bvector_impl_data&& __x) noexcept
- : _Bvector_impl_data(__x)
- { __x._M_reset(); }
- _GLIBCXX20_CONSTEXPR
- void
- _M_move_data(_Bvector_impl_data&& __x) noexcept
- {
- *this = __x;
- __x._M_reset();
- }
- #endif
- _GLIBCXX20_CONSTEXPR
- void
- _M_reset() _GLIBCXX_NOEXCEPT
- { *this = _Bvector_impl_data(); }
- _GLIBCXX20_CONSTEXPR
- void
- _M_swap_data(_Bvector_impl_data& __x) _GLIBCXX_NOEXCEPT
- {
- // Do not use std::swap(_M_start, __x._M_start), etc as it loses
- // information used by TBAA.
- std::swap(*this, __x);
- }
- };
- struct _Bvector_impl
- : public _Bit_alloc_type, public _Bvector_impl_data
- {
- _GLIBCXX20_CONSTEXPR
- _Bvector_impl() _GLIBCXX_NOEXCEPT_IF(
- is_nothrow_default_constructible<_Bit_alloc_type>::value)
- : _Bit_alloc_type()
- { }
- _GLIBCXX20_CONSTEXPR
- _Bvector_impl(const _Bit_alloc_type& __a) _GLIBCXX_NOEXCEPT
- : _Bit_alloc_type(__a)
- { }
- #if __cplusplus >= 201103L
- // Not defaulted, to enforce noexcept(true) even when
- // !is_nothrow_move_constructible<_Bit_alloc_type>.
- _GLIBCXX20_CONSTEXPR
- _Bvector_impl(_Bvector_impl&& __x) noexcept
- : _Bit_alloc_type(std::move(__x)), _Bvector_impl_data(std::move(__x))
- { }
- _GLIBCXX20_CONSTEXPR
- _Bvector_impl(_Bit_alloc_type&& __a, _Bvector_impl&& __x) noexcept
- : _Bit_alloc_type(std::move(__a)), _Bvector_impl_data(std::move(__x))
- { }
- #endif
- _GLIBCXX20_CONSTEXPR
- _Bit_type*
- _M_end_addr() const _GLIBCXX_NOEXCEPT
- {
- if (this->_M_end_of_storage)
- return std::__addressof(this->_M_end_of_storage[-1]) + 1;
- return 0;
- }
- };
- public:
- typedef _Alloc allocator_type;
- _GLIBCXX20_CONSTEXPR
- _Bit_alloc_type&
- _M_get_Bit_allocator() _GLIBCXX_NOEXCEPT
- { return this->_M_impl; }
- _GLIBCXX20_CONSTEXPR
- const _Bit_alloc_type&
- _M_get_Bit_allocator() const _GLIBCXX_NOEXCEPT
- { return this->_M_impl; }
- _GLIBCXX20_CONSTEXPR
- allocator_type
- get_allocator() const _GLIBCXX_NOEXCEPT
- { return allocator_type(_M_get_Bit_allocator()); }
- #if __cplusplus >= 201103L
- _Bvector_base() = default;
- #else
- _Bvector_base() { }
- #endif
- _GLIBCXX20_CONSTEXPR
- _Bvector_base(const allocator_type& __a)
- : _M_impl(__a) { }
- #if __cplusplus >= 201103L
- _Bvector_base(_Bvector_base&&) = default;
- _GLIBCXX20_CONSTEXPR
- _Bvector_base(_Bvector_base&& __x, const allocator_type& __a) noexcept
- : _M_impl(_Bit_alloc_type(__a), std::move(__x._M_impl))
- { }
- #endif
- _GLIBCXX20_CONSTEXPR
- ~_Bvector_base()
- { this->_M_deallocate(); }
- protected:
- _Bvector_impl _M_impl;
- _GLIBCXX20_CONSTEXPR
- _Bit_pointer
- _M_allocate(size_t __n)
- {
- _Bit_pointer __p = _Bit_alloc_traits::allocate(_M_impl, _S_nword(__n));
- #if __cpp_lib_is_constant_evaluated
- if (std::is_constant_evaluated())
- {
- __n = _S_nword(__n);
- for (size_t __i = 0; __i < __n; ++__i)
- __p[__i] = 0ul;
- }
- #endif
- return __p;
- }
- _GLIBCXX20_CONSTEXPR
- void
- _M_deallocate()
- {
- if (_M_impl._M_start._M_p)
- {
- const size_t __n = _M_impl._M_end_addr() - _M_impl._M_start._M_p;
- _Bit_alloc_traits::deallocate(_M_impl,
- _M_impl._M_end_of_storage - __n,
- __n);
- _M_impl._M_reset();
- }
- }
- #if __cplusplus >= 201103L
- _GLIBCXX20_CONSTEXPR
- void
- _M_move_data(_Bvector_base&& __x) noexcept
- { _M_impl._M_move_data(std::move(__x._M_impl)); }
- #endif
- _GLIBCXX_CONSTEXPR
- static size_t
- _S_nword(size_t __n)
- { return (__n + int(_S_word_bit) - 1) / int(_S_word_bit); }
- };
- /**
- * @brief A specialization of vector for booleans which offers fixed time
- * access to individual elements in any order.
- *
- * @ingroup sequences
- *
- * @tparam _Alloc Allocator type.
- *
- * Note that vector<bool> does not actually meet the requirements for being
- * a container. This is because the reference and pointer types are not
- * really references and pointers to bool. See DR96 for details. @see
- * vector for function documentation.
- *
- * In some terminology a %vector can be described as a dynamic
- * C-style array, it offers fast and efficient access to individual
- * elements in any order and saves the user from worrying about
- * memory and size allocation. Subscripting ( @c [] ) access is
- * also provided as with C-style arrays.
- */
- template<typename _Alloc>
- class vector<bool, _Alloc> : protected _Bvector_base<_Alloc>
- {
- typedef _Bvector_base<_Alloc> _Base;
- typedef typename _Base::_Bit_pointer _Bit_pointer;
- typedef typename _Base::_Bit_alloc_traits _Bit_alloc_traits;
- #if __cplusplus >= 201103L
- friend struct std::hash<vector>;
- #endif
- public:
- typedef bool value_type;
- typedef size_t size_type;
- typedef ptrdiff_t difference_type;
- typedef _Bit_reference reference;
- typedef bool const_reference;
- typedef _Bit_reference* pointer;
- typedef const bool* const_pointer;
- typedef _Bit_iterator iterator;
- typedef _Bit_const_iterator const_iterator;
- typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
- typedef std::reverse_iterator<iterator> reverse_iterator;
- typedef _Alloc allocator_type;
- _GLIBCXX20_CONSTEXPR
- allocator_type
- get_allocator() const
- { return _Base::get_allocator(); }
- protected:
- using _Base::_M_allocate;
- using _Base::_M_deallocate;
- using _Base::_S_nword;
- using _Base::_M_get_Bit_allocator;
- public:
- #if __cplusplus >= 201103L
- vector() = default;
- #else
- vector() { }
- #endif
- _GLIBCXX20_CONSTEXPR
- explicit
- vector(const allocator_type& __a)
- : _Base(__a) { }
- #if __cplusplus >= 201103L
- _GLIBCXX20_CONSTEXPR
- explicit
- vector(size_type __n, const allocator_type& __a = allocator_type())
- : vector(__n, false, __a)
- { }
- _GLIBCXX20_CONSTEXPR
- vector(size_type __n, const bool& __value,
- const allocator_type& __a = allocator_type())
- #else
- explicit
- vector(size_type __n, const bool& __value = bool(),
- const allocator_type& __a = allocator_type())
- #endif
- : _Base(__a)
- {
- _M_initialize(__n);
- _M_initialize_value(__value);
- }
- _GLIBCXX20_CONSTEXPR
- vector(const vector& __x)
- : _Base(_Bit_alloc_traits::_S_select_on_copy(__x._M_get_Bit_allocator()))
- {
- _M_initialize(__x.size());
- _M_copy_aligned(__x.begin(), __x.end(), begin());
- }
- #if __cplusplus >= 201103L
- vector(vector&&) = default;
- private:
- _GLIBCXX20_CONSTEXPR
- vector(vector&& __x, const allocator_type& __a, true_type) noexcept
- : _Base(std::move(__x), __a)
- { }
- _GLIBCXX20_CONSTEXPR
- vector(vector&& __x, const allocator_type& __a, false_type)
- : _Base(__a)
- {
- if (__x.get_allocator() == __a)
- this->_M_move_data(std::move(__x));
- else
- {
- _M_initialize(__x.size());
- _M_copy_aligned(__x.begin(), __x.end(), begin());
- __x.clear();
- }
- }
- public:
- _GLIBCXX20_CONSTEXPR
- vector(vector&& __x, const __type_identity_t<allocator_type>& __a)
- noexcept(_Bit_alloc_traits::_S_always_equal())
- : vector(std::move(__x), __a,
- typename _Bit_alloc_traits::is_always_equal{})
- { }
- _GLIBCXX20_CONSTEXPR
- vector(const vector& __x, const __type_identity_t<allocator_type>& __a)
- : _Base(__a)
- {
- _M_initialize(__x.size());
- _M_copy_aligned(__x.begin(), __x.end(), begin());
- }
- _GLIBCXX20_CONSTEXPR
- vector(initializer_list<bool> __l,
- const allocator_type& __a = allocator_type())
- : _Base(__a)
- {
- _M_initialize_range(__l.begin(), __l.end(),
- random_access_iterator_tag());
- }
- #endif
- #if __cplusplus >= 201103L
- template<typename _InputIterator,
- typename = std::_RequireInputIter<_InputIterator>>
- _GLIBCXX20_CONSTEXPR
- vector(_InputIterator __first, _InputIterator __last,
- const allocator_type& __a = allocator_type())
- : _Base(__a)
- {
- _M_initialize_range(__first, __last,
- std::__iterator_category(__first));
- }
- #else
- template<typename _InputIterator>
- vector(_InputIterator __first, _InputIterator __last,
- const allocator_type& __a = allocator_type())
- : _Base(__a)
- {
- // Check whether it's an integral type. If so, it's not an iterator.
- typedef typename std::__is_integer<_InputIterator>::__type _Integral;
- _M_initialize_dispatch(__first, __last, _Integral());
- }
- #endif
- _GLIBCXX20_CONSTEXPR
- ~vector() _GLIBCXX_NOEXCEPT { }
- _GLIBCXX20_CONSTEXPR
- vector&
- operator=(const vector& __x)
- {
- if (&__x == this)
- return *this;
- #if __cplusplus >= 201103L
- if (_Bit_alloc_traits::_S_propagate_on_copy_assign())
- {
- if (this->_M_get_Bit_allocator() != __x._M_get_Bit_allocator())
- {
- this->_M_deallocate();
- std::__alloc_on_copy(_M_get_Bit_allocator(),
- __x._M_get_Bit_allocator());
- _M_initialize(__x.size());
- }
- else
- std::__alloc_on_copy(_M_get_Bit_allocator(),
- __x._M_get_Bit_allocator());
- }
- #endif
- if (__x.size() > capacity())
- {
- this->_M_deallocate();
- _M_initialize(__x.size());
- }
- this->_M_impl._M_finish = _M_copy_aligned(__x.begin(), __x.end(),
- begin());
- return *this;
- }
- #if __cplusplus >= 201103L
- _GLIBCXX20_CONSTEXPR
- vector&
- operator=(vector&& __x) noexcept(_Bit_alloc_traits::_S_nothrow_move())
- {
- if (_Bit_alloc_traits::_S_propagate_on_move_assign()
- || this->_M_get_Bit_allocator() == __x._M_get_Bit_allocator())
- {
- this->_M_deallocate();
- this->_M_move_data(std::move(__x));
- std::__alloc_on_move(_M_get_Bit_allocator(),
- __x._M_get_Bit_allocator());
- }
- else
- {
- if (__x.size() > capacity())
- {
- this->_M_deallocate();
- _M_initialize(__x.size());
- }
- this->_M_impl._M_finish = _M_copy_aligned(__x.begin(), __x.end(),
- begin());
- __x.clear();
- }
- return *this;
- }
- _GLIBCXX20_CONSTEXPR
- vector&
- operator=(initializer_list<bool> __l)
- {
- this->assign(__l.begin(), __l.end());
- return *this;
- }
- #endif
- // assign(), a generalized assignment member function. Two
- // versions: one that takes a count, and one that takes a range.
- // The range version is a member template, so we dispatch on whether
- // or not the type is an integer.
- _GLIBCXX20_CONSTEXPR
- void
- assign(size_type __n, const bool& __x)
- { _M_fill_assign(__n, __x); }
- #if __cplusplus >= 201103L
- template<typename _InputIterator,
- typename = std::_RequireInputIter<_InputIterator>>
- _GLIBCXX20_CONSTEXPR
- void
- assign(_InputIterator __first, _InputIterator __last)
- { _M_assign_aux(__first, __last, std::__iterator_category(__first)); }
- #else
- template<typename _InputIterator>
- void
- assign(_InputIterator __first, _InputIterator __last)
- {
- // Check whether it's an integral type. If so, it's not an iterator.
- typedef typename std::__is_integer<_InputIterator>::__type _Integral;
- _M_assign_dispatch(__first, __last, _Integral());
- }
- #endif
- #if __cplusplus >= 201103L
- _GLIBCXX20_CONSTEXPR
- void
- assign(initializer_list<bool> __l)
- { _M_assign_aux(__l.begin(), __l.end(), random_access_iterator_tag()); }
- #endif
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- iterator
- begin() _GLIBCXX_NOEXCEPT
- { return iterator(this->_M_impl._M_start._M_p, 0); }
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- const_iterator
- begin() const _GLIBCXX_NOEXCEPT
- { return const_iterator(this->_M_impl._M_start._M_p, 0); }
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- iterator
- end() _GLIBCXX_NOEXCEPT
- { return this->_M_impl._M_finish; }
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- const_iterator
- end() const _GLIBCXX_NOEXCEPT
- { return this->_M_impl._M_finish; }
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- reverse_iterator
- rbegin() _GLIBCXX_NOEXCEPT
- { return reverse_iterator(end()); }
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- const_reverse_iterator
- rbegin() const _GLIBCXX_NOEXCEPT
- { return const_reverse_iterator(end()); }
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- reverse_iterator
- rend() _GLIBCXX_NOEXCEPT
- { return reverse_iterator(begin()); }
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- const_reverse_iterator
- rend() const _GLIBCXX_NOEXCEPT
- { return const_reverse_iterator(begin()); }
- #if __cplusplus >= 201103L
- [[__nodiscard__]] _GLIBCXX20_CONSTEXPR
- const_iterator
- cbegin() const noexcept
- { return const_iterator(this->_M_impl._M_start._M_p, 0); }
- [[__nodiscard__]] _GLIBCXX20_CONSTEXPR
- const_iterator
- cend() const noexcept
- { return this->_M_impl._M_finish; }
- [[__nodiscard__]] _GLIBCXX20_CONSTEXPR
- const_reverse_iterator
- crbegin() const noexcept
- { return const_reverse_iterator(end()); }
- [[__nodiscard__]] _GLIBCXX20_CONSTEXPR
- const_reverse_iterator
- crend() const noexcept
- { return const_reverse_iterator(begin()); }
- #endif
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- size_type
- size() const _GLIBCXX_NOEXCEPT
- { return size_type(end() - begin()); }
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- size_type
- max_size() const _GLIBCXX_NOEXCEPT
- {
- const size_type __isize =
- __gnu_cxx::__numeric_traits<difference_type>::__max
- - int(_S_word_bit) + 1;
- const size_type __asize
- = _Bit_alloc_traits::max_size(_M_get_Bit_allocator());
- return (__asize <= __isize / int(_S_word_bit)
- ? __asize * int(_S_word_bit) : __isize);
- }
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- size_type
- capacity() const _GLIBCXX_NOEXCEPT
- { return size_type(const_iterator(this->_M_impl._M_end_addr(), 0)
- - begin()); }
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- bool
- empty() const _GLIBCXX_NOEXCEPT
- { return begin() == end(); }
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- reference
- operator[](size_type __n)
- { return begin()[__n]; }
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- const_reference
- operator[](size_type __n) const
- { return begin()[__n]; }
- protected:
- _GLIBCXX20_CONSTEXPR
- void
- _M_range_check(size_type __n) const
- {
- if (__n >= this->size())
- __throw_out_of_range_fmt(__N("vector<bool>::_M_range_check: __n "
- "(which is %zu) >= this->size() "
- "(which is %zu)"),
- __n, this->size());
- }
- public:
- _GLIBCXX20_CONSTEXPR
- reference
- at(size_type __n)
- {
- _M_range_check(__n);
- return (*this)[__n];
- }
- _GLIBCXX20_CONSTEXPR
- const_reference
- at(size_type __n) const
- {
- _M_range_check(__n);
- return (*this)[__n];
- }
- _GLIBCXX20_CONSTEXPR
- void
- reserve(size_type __n)
- {
- if (__n > max_size())
- __throw_length_error(__N("vector::reserve"));
- if (capacity() < __n)
- _M_reallocate(__n);
- }
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- reference
- front()
- { return *begin(); }
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- const_reference
- front() const
- { return *begin(); }
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- reference
- back()
- { return *(end() - 1); }
- _GLIBCXX_NODISCARD _GLIBCXX20_CONSTEXPR
- const_reference
- back() const
- { return *(end() - 1); }
- _GLIBCXX20_CONSTEXPR
- void
- push_back(bool __x)
- {
- if (this->_M_impl._M_finish._M_p != this->_M_impl._M_end_addr())
- *this->_M_impl._M_finish++ = __x;
- else
- _M_insert_aux(end(), __x);
- }
- _GLIBCXX20_CONSTEXPR
- void
- swap(vector& __x) _GLIBCXX_NOEXCEPT
- {
- #if __cplusplus >= 201103L
- __glibcxx_assert(_Bit_alloc_traits::propagate_on_container_swap::value
- || _M_get_Bit_allocator() == __x._M_get_Bit_allocator());
- #endif
- this->_M_impl._M_swap_data(__x._M_impl);
- _Bit_alloc_traits::_S_on_swap(_M_get_Bit_allocator(),
- __x._M_get_Bit_allocator());
- }
- // [23.2.5]/1, third-to-last entry in synopsis listing
- _GLIBCXX20_CONSTEXPR
- static void
- swap(reference __x, reference __y) _GLIBCXX_NOEXCEPT
- {
- bool __tmp = __x;
- __x = __y;
- __y = __tmp;
- }
- _GLIBCXX20_CONSTEXPR
- iterator
- #if __cplusplus >= 201103L
- insert(const_iterator __position, const bool& __x)
- #else
- insert(iterator __position, const bool& __x)
- #endif
- {
- const difference_type __n = __position - begin();
- if (this->_M_impl._M_finish._M_p != this->_M_impl._M_end_addr()
- && __position == end())
- *this->_M_impl._M_finish++ = __x;
- else
- _M_insert_aux(__position._M_const_cast(), __x);
- return begin() + __n;
- }
- #if _GLIBCXX_USE_DEPRECATED
- _GLIBCXX_DEPRECATED_SUGGEST("insert(position, false)")
- iterator
- insert(const_iterator __position)
- { return this->insert(__position._M_const_cast(), false); }
- #endif
- #if __cplusplus >= 201103L
- template<typename _InputIterator,
- typename = std::_RequireInputIter<_InputIterator>>
- _GLIBCXX20_CONSTEXPR
- iterator
- insert(const_iterator __position,
- _InputIterator __first, _InputIterator __last)
- {
- difference_type __offset = __position - cbegin();
- _M_insert_range(__position._M_const_cast(),
- __first, __last,
- std::__iterator_category(__first));
- return begin() + __offset;
- }
- #else
- template<typename _InputIterator>
- void
- insert(iterator __position,
- _InputIterator __first, _InputIterator __last)
- {
- // Check whether it's an integral type. If so, it's not an iterator.
- typedef typename std::__is_integer<_InputIterator>::__type _Integral;
- _M_insert_dispatch(__position, __first, __last, _Integral());
- }
- #endif
- #if __cplusplus >= 201103L
- _GLIBCXX20_CONSTEXPR
- iterator
- insert(const_iterator __position, size_type __n, const bool& __x)
- {
- difference_type __offset = __position - cbegin();
- _M_fill_insert(__position._M_const_cast(), __n, __x);
- return begin() + __offset;
- }
- #else
- void
- insert(iterator __position, size_type __n, const bool& __x)
- { _M_fill_insert(__position, __n, __x); }
- #endif
- #if __cplusplus >= 201103L
- _GLIBCXX20_CONSTEXPR
- iterator
- insert(const_iterator __p, initializer_list<bool> __l)
- { return this->insert(__p, __l.begin(), __l.end()); }
- #endif
- _GLIBCXX20_CONSTEXPR
- void
- pop_back()
- { --this->_M_impl._M_finish; }
- _GLIBCXX20_CONSTEXPR
- iterator
- #if __cplusplus >= 201103L
- erase(const_iterator __position)
- #else
- erase(iterator __position)
- #endif
- { return _M_erase(__position._M_const_cast()); }
- _GLIBCXX20_CONSTEXPR
- iterator
- #if __cplusplus >= 201103L
- erase(const_iterator __first, const_iterator __last)
- #else
- erase(iterator __first, iterator __last)
- #endif
- { return _M_erase(__first._M_const_cast(), __last._M_const_cast()); }
- _GLIBCXX20_CONSTEXPR
- void
- resize(size_type __new_size, bool __x = bool())
- {
- if (__new_size < size())
- _M_erase_at_end(begin() + difference_type(__new_size));
- else
- insert(end(), __new_size - size(), __x);
- }
- #if __cplusplus >= 201103L
- _GLIBCXX20_CONSTEXPR
- void
- shrink_to_fit()
- { _M_shrink_to_fit(); }
- #endif
- _GLIBCXX20_CONSTEXPR
- void
- flip() _GLIBCXX_NOEXCEPT
- {
- _Bit_type * const __end = this->_M_impl._M_end_addr();
- for (_Bit_type * __p = this->_M_impl._M_start._M_p; __p != __end; ++__p)
- *__p = ~*__p;
- }
- _GLIBCXX20_CONSTEXPR
- void
- clear() _GLIBCXX_NOEXCEPT
- { _M_erase_at_end(begin()); }
- #if __cplusplus >= 201103L
- template<typename... _Args>
- #if __cplusplus > 201402L
- _GLIBCXX20_CONSTEXPR
- reference
- #else
- void
- #endif
- emplace_back(_Args&&... __args)
- {
- push_back(bool(__args...));
- #if __cplusplus > 201402L
- return back();
- #endif
- }
- template<typename... _Args>
- _GLIBCXX20_CONSTEXPR
- iterator
- emplace(const_iterator __pos, _Args&&... __args)
- { return insert(__pos, bool(__args...)); }
- #endif
- protected:
- // Precondition: __first._M_offset == 0 && __result._M_offset == 0.
- _GLIBCXX20_CONSTEXPR
- iterator
- _M_copy_aligned(const_iterator __first, const_iterator __last,
- iterator __result)
- {
- _Bit_type* __q = std::copy(__first._M_p, __last._M_p, __result._M_p);
- return std::copy(const_iterator(__last._M_p, 0), __last,
- iterator(__q, 0));
- }
- _GLIBCXX20_CONSTEXPR
- void
- _M_initialize(size_type __n)
- {
- if (__n)
- {
- _Bit_pointer __q = this->_M_allocate(__n);
- this->_M_impl._M_end_of_storage = __q + _S_nword(__n);
- iterator __start = iterator(std::__addressof(*__q), 0);
- this->_M_impl._M_start = __start;
- this->_M_impl._M_finish = __start + difference_type(__n);
- }
- }
- _GLIBCXX20_CONSTEXPR
- void
- _M_initialize_value(bool __x) _GLIBCXX_NOEXCEPT
- {
- if (_Bit_type* __p = this->_M_impl._M_start._M_p)
- __fill_bvector_n(__p, this->_M_impl._M_end_addr() - __p, __x);
- }
- _GLIBCXX20_CONSTEXPR
- void
- _M_reallocate(size_type __n);
- #if __cplusplus >= 201103L
- _GLIBCXX20_CONSTEXPR
- bool
- _M_shrink_to_fit();
- #endif
- #if __cplusplus < 201103L
- // _GLIBCXX_RESOLVE_LIB_DEFECTS
- // 438. Ambiguity in the "do the right thing" clause
- template<typename _Integer>
- void
- _M_initialize_dispatch(_Integer __n, _Integer __x, __true_type)
- {
- _M_initialize(static_cast<size_type>(__n));
- _M_initialize_value(__x);
- }
- template<typename _InputIterator>
- void
- _M_initialize_dispatch(_InputIterator __first, _InputIterator __last,
- __false_type)
- { _M_initialize_range(__first, __last,
- std::__iterator_category(__first)); }
- #endif
- template<typename _InputIterator>
- _GLIBCXX20_CONSTEXPR
- void
- _M_initialize_range(_InputIterator __first, _InputIterator __last,
- std::input_iterator_tag)
- {
- for (; __first != __last; ++__first)
- push_back(*__first);
- }
- template<typename _ForwardIterator>
- _GLIBCXX20_CONSTEXPR
- void
- _M_initialize_range(_ForwardIterator __first, _ForwardIterator __last,
- std::forward_iterator_tag)
- {
- const size_type __n = std::distance(__first, __last);
- _M_initialize(__n);
- std::copy(__first, __last, begin());
- }
- #if __cplusplus < 201103L
- // _GLIBCXX_RESOLVE_LIB_DEFECTS
- // 438. Ambiguity in the "do the right thing" clause
- template<typename _Integer>
- void
- _M_assign_dispatch(_Integer __n, _Integer __val, __true_type)
- { _M_fill_assign(__n, __val); }
- template<class _InputIterator>
- void
- _M_assign_dispatch(_InputIterator __first, _InputIterator __last,
- __false_type)
- { _M_assign_aux(__first, __last, std::__iterator_category(__first)); }
- #endif
- _GLIBCXX20_CONSTEXPR
- void
- _M_fill_assign(size_t __n, bool __x)
- {
- if (__n > size())
- {
- _M_initialize_value(__x);
- insert(end(), __n - size(), __x);
- }
- else
- {
- _M_erase_at_end(begin() + __n);
- _M_initialize_value(__x);
- }
- }
- template<typename _InputIterator>
- _GLIBCXX20_CONSTEXPR
- void
- _M_assign_aux(_InputIterator __first, _InputIterator __last,
- std::input_iterator_tag)
- {
- iterator __cur = begin();
- for (; __first != __last && __cur != end(); ++__cur, (void)++__first)
- *__cur = *__first;
- if (__first == __last)
- _M_erase_at_end(__cur);
- else
- insert(end(), __first, __last);
- }
- template<typename _ForwardIterator>
- _GLIBCXX20_CONSTEXPR
- void
- _M_assign_aux(_ForwardIterator __first, _ForwardIterator __last,
- std::forward_iterator_tag)
- {
- const size_type __len = std::distance(__first, __last);
- if (__len < size())
- _M_erase_at_end(std::copy(__first, __last, begin()));
- else
- {
- _ForwardIterator __mid = __first;
- std::advance(__mid, size());
- std::copy(__first, __mid, begin());
- insert(end(), __mid, __last);
- }
- }
- #if __cplusplus < 201103L
- // _GLIBCXX_RESOLVE_LIB_DEFECTS
- // 438. Ambiguity in the "do the right thing" clause
- template<typename _Integer>
- void
- _M_insert_dispatch(iterator __pos, _Integer __n, _Integer __x,
- __true_type)
- { _M_fill_insert(__pos, __n, __x); }
- template<typename _InputIterator>
- void
- _M_insert_dispatch(iterator __pos,
- _InputIterator __first, _InputIterator __last,
- __false_type)
- { _M_insert_range(__pos, __first, __last,
- std::__iterator_category(__first)); }
- #endif
- _GLIBCXX20_CONSTEXPR
- void
- _M_fill_insert(iterator __position, size_type __n, bool __x);
- template<typename _InputIterator>
- _GLIBCXX20_CONSTEXPR
- void
- _M_insert_range(iterator __pos, _InputIterator __first,
- _InputIterator __last, std::input_iterator_tag)
- {
- for (; __first != __last; ++__first)
- {
- __pos = insert(__pos, *__first);
- ++__pos;
- }
- }
- template<typename _ForwardIterator>
- _GLIBCXX20_CONSTEXPR
- void
- _M_insert_range(iterator __position, _ForwardIterator __first,
- _ForwardIterator __last, std::forward_iterator_tag);
- _GLIBCXX20_CONSTEXPR
- void
- _M_insert_aux(iterator __position, bool __x);
- _GLIBCXX20_CONSTEXPR
- size_type
- _M_check_len(size_type __n, const char* __s) const
- {
- if (max_size() - size() < __n)
- __throw_length_error(__N(__s));
- const size_type __len = size() + std::max(size(), __n);
- return (__len < size() || __len > max_size()) ? max_size() : __len;
- }
- _GLIBCXX20_CONSTEXPR
- void
- _M_erase_at_end(iterator __pos)
- { this->_M_impl._M_finish = __pos; }
- _GLIBCXX20_CONSTEXPR
- iterator
- _M_erase(iterator __pos);
- _GLIBCXX20_CONSTEXPR
- iterator
- _M_erase(iterator __first, iterator __last);
- protected:
- // _GLIBCXX_RESOLVE_LIB_DEFECTS
- // DR 464. Suggestion for new member functions in standard containers.
- // N.B. DR 464 says nothing about vector<bool> but we need something
- // here due to the using-declaration in __gnu_debug::vector.
- // vector class.
- #if __cplusplus >= 201103L
- void data() = delete;
- #else
- void data() { }
- #endif
- };
- _GLIBCXX_END_NAMESPACE_CONTAINER
- // Fill a partial word.
- _GLIBCXX20_CONSTEXPR
- inline void
- __fill_bvector(_Bit_type* __v, unsigned int __first, unsigned int __last,
- bool __x) _GLIBCXX_NOEXCEPT
- {
- const _Bit_type __fmask = ~0ul << __first;
- const _Bit_type __lmask = ~0ul >> (_S_word_bit - __last);
- const _Bit_type __mask = __fmask & __lmask;
- if (__x)
- *__v |= __mask;
- else
- *__v &= ~__mask;
- }
- // Fill N full words, as if using memset, but usable in constant expressions.
- __attribute__((__nonnull__))
- _GLIBCXX20_CONSTEXPR
- inline void
- __fill_bvector_n(_Bit_type* __p, size_t __n, bool __x) _GLIBCXX_NOEXCEPT
- {
- #if __cpp_lib_is_constant_evaluated
- if (std::is_constant_evaluated())
- {
- for (size_t __i = 0; __i < __n; ++__i)
- __p[__i] = __x ? ~0ul : 0ul;
- return;
- }
- #endif
- __builtin_memset(__p, __x ? ~0 : 0, __n * sizeof(_Bit_type));
- }
- _GLIBCXX20_CONSTEXPR
- inline void
- __fill_a1(_GLIBCXX_STD_C::_Bit_iterator __first,
- _GLIBCXX_STD_C::_Bit_iterator __last, const bool& __x)
- {
- if (__first._M_p != __last._M_p)
- {
- _Bit_type* __first_p = __first._M_p;
- if (__first._M_offset != 0)
- __fill_bvector(__first_p++, __first._M_offset, _S_word_bit, __x);
- __fill_bvector_n(__first_p, __last._M_p - __first_p, __x);
- if (__last._M_offset != 0)
- __fill_bvector(__last._M_p, 0, __last._M_offset, __x);
- }
- else if (__first._M_offset != __last._M_offset)
- __fill_bvector(__first._M_p, __first._M_offset, __last._M_offset, __x);
- }
- #if __cplusplus >= 201103L
- // DR 1182.
- /// std::hash specialization for vector<bool>.
- template<typename _Alloc>
- struct hash<_GLIBCXX_STD_C::vector<bool, _Alloc>>
- : public __hash_base<size_t, _GLIBCXX_STD_C::vector<bool, _Alloc>>
- {
- size_t
- operator()(const _GLIBCXX_STD_C::vector<bool, _Alloc>&) const noexcept;
- };
- #endif // C++11
- _GLIBCXX_END_NAMESPACE_VERSION
- } // namespace std
- #endif
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