|
- // Vector implementation (out of line) -*- C++ -*-
-
- // Copyright (C) 2001-2020 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
- * 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/vector.tcc
- * This is an internal header file, included by other library headers.
- * Do not attempt to use it directly. @headername{vector}
- */
-
- #ifndef _VECTOR_TCC
- #define _VECTOR_TCC 1
-
- namespace std _GLIBCXX_VISIBILITY(default)
- {
- _GLIBCXX_BEGIN_NAMESPACE_VERSION
- _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
-
- template<typename _Tp, typename _Alloc>
- void
- vector<_Tp, _Alloc>::
- reserve(size_type __n)
- {
- if (__n > this->max_size())
- __throw_length_error(__N("vector::reserve"));
- if (this->capacity() < __n)
- {
- const size_type __old_size = size();
- pointer __tmp;
- #if __cplusplus >= 201103L
- if _GLIBCXX17_CONSTEXPR (_S_use_relocate())
- {
- __tmp = this->_M_allocate(__n);
- _S_relocate(this->_M_impl._M_start, this->_M_impl._M_finish,
- __tmp, _M_get_Tp_allocator());
- }
- else
- #endif
- {
- __tmp = _M_allocate_and_copy(__n,
- _GLIBCXX_MAKE_MOVE_IF_NOEXCEPT_ITERATOR(this->_M_impl._M_start),
- _GLIBCXX_MAKE_MOVE_IF_NOEXCEPT_ITERATOR(this->_M_impl._M_finish));
- std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
- _M_get_Tp_allocator());
- }
- _GLIBCXX_ASAN_ANNOTATE_REINIT;
- _M_deallocate(this->_M_impl._M_start,
- this->_M_impl._M_end_of_storage
- - this->_M_impl._M_start);
- this->_M_impl._M_start = __tmp;
- this->_M_impl._M_finish = __tmp + __old_size;
- this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __n;
- }
- }
-
- #if __cplusplus >= 201103L
- template<typename _Tp, typename _Alloc>
- template<typename... _Args>
- #if __cplusplus > 201402L
- typename vector<_Tp, _Alloc>::reference
- #else
- void
- #endif
- vector<_Tp, _Alloc>::
- emplace_back(_Args&&... __args)
- {
- if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage)
- {
- _GLIBCXX_ASAN_ANNOTATE_GROW(1);
- _Alloc_traits::construct(this->_M_impl, this->_M_impl._M_finish,
- std::forward<_Args>(__args)...);
- ++this->_M_impl._M_finish;
- _GLIBCXX_ASAN_ANNOTATE_GREW(1);
- }
- else
- _M_realloc_insert(end(), std::forward<_Args>(__args)...);
- #if __cplusplus > 201402L
- return back();
- #endif
- }
- #endif
-
- template<typename _Tp, typename _Alloc>
- typename vector<_Tp, _Alloc>::iterator
- vector<_Tp, _Alloc>::
- #if __cplusplus >= 201103L
- insert(const_iterator __position, const value_type& __x)
- #else
- insert(iterator __position, const value_type& __x)
- #endif
- {
- const size_type __n = __position - begin();
- if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage)
- if (__position == end())
- {
- _GLIBCXX_ASAN_ANNOTATE_GROW(1);
- _Alloc_traits::construct(this->_M_impl, this->_M_impl._M_finish,
- __x);
- ++this->_M_impl._M_finish;
- _GLIBCXX_ASAN_ANNOTATE_GREW(1);
- }
- else
- {
- #if __cplusplus >= 201103L
- const auto __pos = begin() + (__position - cbegin());
- // __x could be an existing element of this vector, so make a
- // copy of it before _M_insert_aux moves elements around.
- _Temporary_value __x_copy(this, __x);
- _M_insert_aux(__pos, std::move(__x_copy._M_val()));
- #else
- _M_insert_aux(__position, __x);
- #endif
- }
- else
- #if __cplusplus >= 201103L
- _M_realloc_insert(begin() + (__position - cbegin()), __x);
- #else
- _M_realloc_insert(__position, __x);
- #endif
-
- return iterator(this->_M_impl._M_start + __n);
- }
-
- template<typename _Tp, typename _Alloc>
- typename vector<_Tp, _Alloc>::iterator
- vector<_Tp, _Alloc>::
- _M_erase(iterator __position)
- {
- if (__position + 1 != end())
- _GLIBCXX_MOVE3(__position + 1, end(), __position);
- --this->_M_impl._M_finish;
- _Alloc_traits::destroy(this->_M_impl, this->_M_impl._M_finish);
- _GLIBCXX_ASAN_ANNOTATE_SHRINK(1);
- return __position;
- }
-
- template<typename _Tp, typename _Alloc>
- typename vector<_Tp, _Alloc>::iterator
- vector<_Tp, _Alloc>::
- _M_erase(iterator __first, iterator __last)
- {
- if (__first != __last)
- {
- if (__last != end())
- _GLIBCXX_MOVE3(__last, end(), __first);
- _M_erase_at_end(__first.base() + (end() - __last));
- }
- return __first;
- }
-
- template<typename _Tp, typename _Alloc>
- vector<_Tp, _Alloc>&
- vector<_Tp, _Alloc>::
- operator=(const vector<_Tp, _Alloc>& __x)
- {
- if (&__x != this)
- {
- _GLIBCXX_ASAN_ANNOTATE_REINIT;
- #if __cplusplus >= 201103L
- if (_Alloc_traits::_S_propagate_on_copy_assign())
- {
- if (!_Alloc_traits::_S_always_equal()
- && _M_get_Tp_allocator() != __x._M_get_Tp_allocator())
- {
- // replacement allocator cannot free existing storage
- this->clear();
- _M_deallocate(this->_M_impl._M_start,
- this->_M_impl._M_end_of_storage
- - this->_M_impl._M_start);
- this->_M_impl._M_start = nullptr;
- this->_M_impl._M_finish = nullptr;
- this->_M_impl._M_end_of_storage = nullptr;
- }
- std::__alloc_on_copy(_M_get_Tp_allocator(),
- __x._M_get_Tp_allocator());
- }
- #endif
- const size_type __xlen = __x.size();
- if (__xlen > capacity())
- {
- pointer __tmp = _M_allocate_and_copy(__xlen, __x.begin(),
- __x.end());
- std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
- _M_get_Tp_allocator());
- _M_deallocate(this->_M_impl._M_start,
- this->_M_impl._M_end_of_storage
- - this->_M_impl._M_start);
- this->_M_impl._M_start = __tmp;
- this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __xlen;
- }
- else if (size() >= __xlen)
- {
- std::_Destroy(std::copy(__x.begin(), __x.end(), begin()),
- end(), _M_get_Tp_allocator());
- }
- else
- {
- std::copy(__x._M_impl._M_start, __x._M_impl._M_start + size(),
- this->_M_impl._M_start);
- std::__uninitialized_copy_a(__x._M_impl._M_start + size(),
- __x._M_impl._M_finish,
- this->_M_impl._M_finish,
- _M_get_Tp_allocator());
- }
- this->_M_impl._M_finish = this->_M_impl._M_start + __xlen;
- }
- return *this;
- }
-
- template<typename _Tp, typename _Alloc>
- void
- vector<_Tp, _Alloc>::
- _M_fill_assign(size_t __n, const value_type& __val)
- {
- if (__n > capacity())
- {
- vector __tmp(__n, __val, _M_get_Tp_allocator());
- __tmp._M_impl._M_swap_data(this->_M_impl);
- }
- else if (__n > size())
- {
- std::fill(begin(), end(), __val);
- const size_type __add = __n - size();
- _GLIBCXX_ASAN_ANNOTATE_GROW(__add);
- this->_M_impl._M_finish =
- std::__uninitialized_fill_n_a(this->_M_impl._M_finish,
- __add, __val, _M_get_Tp_allocator());
- _GLIBCXX_ASAN_ANNOTATE_GREW(__add);
- }
- else
- _M_erase_at_end(std::fill_n(this->_M_impl._M_start, __n, __val));
- }
-
- template<typename _Tp, typename _Alloc>
- template<typename _InputIterator>
- void
- vector<_Tp, _Alloc>::
- _M_assign_aux(_InputIterator __first, _InputIterator __last,
- std::input_iterator_tag)
- {
- pointer __cur(this->_M_impl._M_start);
- for (; __first != __last && __cur != this->_M_impl._M_finish;
- ++__cur, (void)++__first)
- *__cur = *__first;
- if (__first == __last)
- _M_erase_at_end(__cur);
- else
- _M_range_insert(end(), __first, __last,
- std::__iterator_category(__first));
- }
-
- template<typename _Tp, typename _Alloc>
- template<typename _ForwardIterator>
- void
- vector<_Tp, _Alloc>::
- _M_assign_aux(_ForwardIterator __first, _ForwardIterator __last,
- std::forward_iterator_tag)
- {
- const size_type __len = std::distance(__first, __last);
-
- if (__len > capacity())
- {
- _S_check_init_len(__len, _M_get_Tp_allocator());
- pointer __tmp(_M_allocate_and_copy(__len, __first, __last));
- std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
- _M_get_Tp_allocator());
- _GLIBCXX_ASAN_ANNOTATE_REINIT;
- _M_deallocate(this->_M_impl._M_start,
- this->_M_impl._M_end_of_storage
- - this->_M_impl._M_start);
- this->_M_impl._M_start = __tmp;
- this->_M_impl._M_finish = this->_M_impl._M_start + __len;
- this->_M_impl._M_end_of_storage = this->_M_impl._M_finish;
- }
- else if (size() >= __len)
- _M_erase_at_end(std::copy(__first, __last, this->_M_impl._M_start));
- else
- {
- _ForwardIterator __mid = __first;
- std::advance(__mid, size());
- std::copy(__first, __mid, this->_M_impl._M_start);
- const size_type __attribute__((__unused__)) __n = __len - size();
- _GLIBCXX_ASAN_ANNOTATE_GROW(__n);
- this->_M_impl._M_finish =
- std::__uninitialized_copy_a(__mid, __last,
- this->_M_impl._M_finish,
- _M_get_Tp_allocator());
- _GLIBCXX_ASAN_ANNOTATE_GREW(__n);
- }
- }
-
- #if __cplusplus >= 201103L
- template<typename _Tp, typename _Alloc>
- auto
- vector<_Tp, _Alloc>::
- _M_insert_rval(const_iterator __position, value_type&& __v) -> iterator
- {
- const auto __n = __position - cbegin();
- if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage)
- if (__position == cend())
- {
- _GLIBCXX_ASAN_ANNOTATE_GROW(1);
- _Alloc_traits::construct(this->_M_impl, this->_M_impl._M_finish,
- std::move(__v));
- ++this->_M_impl._M_finish;
- _GLIBCXX_ASAN_ANNOTATE_GREW(1);
- }
- else
- _M_insert_aux(begin() + __n, std::move(__v));
- else
- _M_realloc_insert(begin() + __n, std::move(__v));
-
- return iterator(this->_M_impl._M_start + __n);
- }
-
- template<typename _Tp, typename _Alloc>
- template<typename... _Args>
- auto
- vector<_Tp, _Alloc>::
- _M_emplace_aux(const_iterator __position, _Args&&... __args)
- -> iterator
- {
- const auto __n = __position - cbegin();
- if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage)
- if (__position == cend())
- {
- _GLIBCXX_ASAN_ANNOTATE_GROW(1);
- _Alloc_traits::construct(this->_M_impl, this->_M_impl._M_finish,
- std::forward<_Args>(__args)...);
- ++this->_M_impl._M_finish;
- _GLIBCXX_ASAN_ANNOTATE_GREW(1);
- }
- else
- {
- // We need to construct a temporary because something in __args...
- // could alias one of the elements of the container and so we
- // need to use it before _M_insert_aux moves elements around.
- _Temporary_value __tmp(this, std::forward<_Args>(__args)...);
- _M_insert_aux(begin() + __n, std::move(__tmp._M_val()));
- }
- else
- _M_realloc_insert(begin() + __n, std::forward<_Args>(__args)...);
-
- return iterator(this->_M_impl._M_start + __n);
- }
-
- template<typename _Tp, typename _Alloc>
- template<typename _Arg>
- void
- vector<_Tp, _Alloc>::
- _M_insert_aux(iterator __position, _Arg&& __arg)
- #else
- template<typename _Tp, typename _Alloc>
- void
- vector<_Tp, _Alloc>::
- _M_insert_aux(iterator __position, const _Tp& __x)
- #endif
- {
- _GLIBCXX_ASAN_ANNOTATE_GROW(1);
- _Alloc_traits::construct(this->_M_impl, this->_M_impl._M_finish,
- _GLIBCXX_MOVE(*(this->_M_impl._M_finish - 1)));
- ++this->_M_impl._M_finish;
- _GLIBCXX_ASAN_ANNOTATE_GREW(1);
- #if __cplusplus < 201103L
- _Tp __x_copy = __x;
- #endif
- _GLIBCXX_MOVE_BACKWARD3(__position.base(),
- this->_M_impl._M_finish - 2,
- this->_M_impl._M_finish - 1);
- #if __cplusplus < 201103L
- *__position = __x_copy;
- #else
- *__position = std::forward<_Arg>(__arg);
- #endif
- }
-
- #if __cplusplus >= 201103L
- template<typename _Tp, typename _Alloc>
- template<typename... _Args>
- void
- vector<_Tp, _Alloc>::
- _M_realloc_insert(iterator __position, _Args&&... __args)
- #else
- template<typename _Tp, typename _Alloc>
- void
- vector<_Tp, _Alloc>::
- _M_realloc_insert(iterator __position, const _Tp& __x)
- #endif
- {
- const size_type __len =
- _M_check_len(size_type(1), "vector::_M_realloc_insert");
- pointer __old_start = this->_M_impl._M_start;
- pointer __old_finish = this->_M_impl._M_finish;
- const size_type __elems_before = __position - begin();
- pointer __new_start(this->_M_allocate(__len));
- pointer __new_finish(__new_start);
- __try
- {
- // The order of the three operations is dictated by the C++11
- // case, where the moves could alter a new element belonging
- // to the existing vector. This is an issue only for callers
- // taking the element by lvalue ref (see last bullet of C++11
- // [res.on.arguments]).
- _Alloc_traits::construct(this->_M_impl,
- __new_start + __elems_before,
- #if __cplusplus >= 201103L
- std::forward<_Args>(__args)...);
- #else
- __x);
- #endif
- __new_finish = pointer();
-
- #if __cplusplus >= 201103L
- if _GLIBCXX17_CONSTEXPR (_S_use_relocate())
- {
- __new_finish = _S_relocate(__old_start, __position.base(),
- __new_start, _M_get_Tp_allocator());
-
- ++__new_finish;
-
- __new_finish = _S_relocate(__position.base(), __old_finish,
- __new_finish, _M_get_Tp_allocator());
- }
- else
- #endif
- {
- __new_finish
- = std::__uninitialized_move_if_noexcept_a
- (__old_start, __position.base(),
- __new_start, _M_get_Tp_allocator());
-
- ++__new_finish;
-
- __new_finish
- = std::__uninitialized_move_if_noexcept_a
- (__position.base(), __old_finish,
- __new_finish, _M_get_Tp_allocator());
- }
- }
- __catch(...)
- {
- if (!__new_finish)
- _Alloc_traits::destroy(this->_M_impl,
- __new_start + __elems_before);
- else
- std::_Destroy(__new_start, __new_finish, _M_get_Tp_allocator());
- _M_deallocate(__new_start, __len);
- __throw_exception_again;
- }
- #if __cplusplus >= 201103L
- if _GLIBCXX17_CONSTEXPR (!_S_use_relocate())
- #endif
- std::_Destroy(__old_start, __old_finish, _M_get_Tp_allocator());
- _GLIBCXX_ASAN_ANNOTATE_REINIT;
- _M_deallocate(__old_start,
- this->_M_impl._M_end_of_storage - __old_start);
- this->_M_impl._M_start = __new_start;
- this->_M_impl._M_finish = __new_finish;
- this->_M_impl._M_end_of_storage = __new_start + __len;
- }
-
- template<typename _Tp, typename _Alloc>
- void
- vector<_Tp, _Alloc>::
- _M_fill_insert(iterator __position, size_type __n, const value_type& __x)
- {
- if (__n != 0)
- {
- if (size_type(this->_M_impl._M_end_of_storage
- - this->_M_impl._M_finish) >= __n)
- {
- #if __cplusplus < 201103L
- value_type __x_copy = __x;
- #else
- _Temporary_value __tmp(this, __x);
- value_type& __x_copy = __tmp._M_val();
- #endif
- const size_type __elems_after = end() - __position;
- pointer __old_finish(this->_M_impl._M_finish);
- if (__elems_after > __n)
- {
- _GLIBCXX_ASAN_ANNOTATE_GROW(__n);
- std::__uninitialized_move_a(this->_M_impl._M_finish - __n,
- this->_M_impl._M_finish,
- this->_M_impl._M_finish,
- _M_get_Tp_allocator());
- this->_M_impl._M_finish += __n;
- _GLIBCXX_ASAN_ANNOTATE_GREW(__n);
- _GLIBCXX_MOVE_BACKWARD3(__position.base(),
- __old_finish - __n, __old_finish);
- std::fill(__position.base(), __position.base() + __n,
- __x_copy);
- }
- else
- {
- _GLIBCXX_ASAN_ANNOTATE_GROW(__n);
- this->_M_impl._M_finish =
- std::__uninitialized_fill_n_a(this->_M_impl._M_finish,
- __n - __elems_after,
- __x_copy,
- _M_get_Tp_allocator());
- _GLIBCXX_ASAN_ANNOTATE_GREW(__n - __elems_after);
- std::__uninitialized_move_a(__position.base(), __old_finish,
- this->_M_impl._M_finish,
- _M_get_Tp_allocator());
- this->_M_impl._M_finish += __elems_after;
- _GLIBCXX_ASAN_ANNOTATE_GREW(__elems_after);
- std::fill(__position.base(), __old_finish, __x_copy);
- }
- }
- else
- {
- const size_type __len =
- _M_check_len(__n, "vector::_M_fill_insert");
- const size_type __elems_before = __position - begin();
- pointer __new_start(this->_M_allocate(__len));
- pointer __new_finish(__new_start);
- __try
- {
- // See _M_realloc_insert above.
- std::__uninitialized_fill_n_a(__new_start + __elems_before,
- __n, __x,
- _M_get_Tp_allocator());
- __new_finish = pointer();
-
- __new_finish
- = std::__uninitialized_move_if_noexcept_a
- (this->_M_impl._M_start, __position.base(),
- __new_start, _M_get_Tp_allocator());
-
- __new_finish += __n;
-
- __new_finish
- = std::__uninitialized_move_if_noexcept_a
- (__position.base(), this->_M_impl._M_finish,
- __new_finish, _M_get_Tp_allocator());
- }
- __catch(...)
- {
- if (!__new_finish)
- std::_Destroy(__new_start + __elems_before,
- __new_start + __elems_before + __n,
- _M_get_Tp_allocator());
- else
- std::_Destroy(__new_start, __new_finish,
- _M_get_Tp_allocator());
- _M_deallocate(__new_start, __len);
- __throw_exception_again;
- }
- std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
- _M_get_Tp_allocator());
- _GLIBCXX_ASAN_ANNOTATE_REINIT;
- _M_deallocate(this->_M_impl._M_start,
- this->_M_impl._M_end_of_storage
- - this->_M_impl._M_start);
- this->_M_impl._M_start = __new_start;
- this->_M_impl._M_finish = __new_finish;
- this->_M_impl._M_end_of_storage = __new_start + __len;
- }
- }
- }
-
- #if __cplusplus >= 201103L
- template<typename _Tp, typename _Alloc>
- void
- vector<_Tp, _Alloc>::
- _M_default_append(size_type __n)
- {
- if (__n != 0)
- {
- const size_type __size = size();
- size_type __navail = size_type(this->_M_impl._M_end_of_storage
- - this->_M_impl._M_finish);
-
- if (__size > max_size() || __navail > max_size() - __size)
- __builtin_unreachable();
-
- if (__navail >= __n)
- {
- _GLIBCXX_ASAN_ANNOTATE_GROW(__n);
- this->_M_impl._M_finish =
- std::__uninitialized_default_n_a(this->_M_impl._M_finish,
- __n, _M_get_Tp_allocator());
- _GLIBCXX_ASAN_ANNOTATE_GREW(__n);
- }
- else
- {
- const size_type __len =
- _M_check_len(__n, "vector::_M_default_append");
- pointer __new_start(this->_M_allocate(__len));
- if _GLIBCXX17_CONSTEXPR (_S_use_relocate())
- {
- __try
- {
- std::__uninitialized_default_n_a(__new_start + __size,
- __n, _M_get_Tp_allocator());
- }
- __catch(...)
- {
- _M_deallocate(__new_start, __len);
- __throw_exception_again;
- }
- _S_relocate(this->_M_impl._M_start, this->_M_impl._M_finish,
- __new_start, _M_get_Tp_allocator());
- }
- else
- {
- pointer __destroy_from = pointer();
- __try
- {
- std::__uninitialized_default_n_a(__new_start + __size,
- __n, _M_get_Tp_allocator());
- __destroy_from = __new_start + __size;
- std::__uninitialized_move_if_noexcept_a(
- this->_M_impl._M_start, this->_M_impl._M_finish,
- __new_start, _M_get_Tp_allocator());
- }
- __catch(...)
- {
- if (__destroy_from)
- std::_Destroy(__destroy_from, __destroy_from + __n,
- _M_get_Tp_allocator());
- _M_deallocate(__new_start, __len);
- __throw_exception_again;
- }
- std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
- _M_get_Tp_allocator());
- }
- _GLIBCXX_ASAN_ANNOTATE_REINIT;
- _M_deallocate(this->_M_impl._M_start,
- this->_M_impl._M_end_of_storage
- - this->_M_impl._M_start);
- this->_M_impl._M_start = __new_start;
- this->_M_impl._M_finish = __new_start + __size + __n;
- this->_M_impl._M_end_of_storage = __new_start + __len;
- }
- }
- }
-
- template<typename _Tp, typename _Alloc>
- bool
- vector<_Tp, _Alloc>::
- _M_shrink_to_fit()
- {
- if (capacity() == size())
- return false;
- _GLIBCXX_ASAN_ANNOTATE_REINIT;
- return std::__shrink_to_fit_aux<vector>::_S_do_it(*this);
- }
- #endif
-
- template<typename _Tp, typename _Alloc>
- template<typename _InputIterator>
- void
- vector<_Tp, _Alloc>::
- _M_range_insert(iterator __pos, _InputIterator __first,
- _InputIterator __last, std::input_iterator_tag)
- {
- if (__pos == end())
- {
- for (; __first != __last; ++__first)
- insert(end(), *__first);
- }
- else if (__first != __last)
- {
- vector __tmp(__first, __last, _M_get_Tp_allocator());
- insert(__pos,
- _GLIBCXX_MAKE_MOVE_ITERATOR(__tmp.begin()),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__tmp.end()));
- }
- }
-
- template<typename _Tp, typename _Alloc>
- template<typename _ForwardIterator>
- void
- vector<_Tp, _Alloc>::
- _M_range_insert(iterator __position, _ForwardIterator __first,
- _ForwardIterator __last, std::forward_iterator_tag)
- {
- if (__first != __last)
- {
- const size_type __n = std::distance(__first, __last);
- if (size_type(this->_M_impl._M_end_of_storage
- - this->_M_impl._M_finish) >= __n)
- {
- const size_type __elems_after = end() - __position;
- pointer __old_finish(this->_M_impl._M_finish);
- if (__elems_after > __n)
- {
- _GLIBCXX_ASAN_ANNOTATE_GROW(__n);
- std::__uninitialized_move_a(this->_M_impl._M_finish - __n,
- this->_M_impl._M_finish,
- this->_M_impl._M_finish,
- _M_get_Tp_allocator());
- this->_M_impl._M_finish += __n;
- _GLIBCXX_ASAN_ANNOTATE_GREW(__n);
- _GLIBCXX_MOVE_BACKWARD3(__position.base(),
- __old_finish - __n, __old_finish);
- std::copy(__first, __last, __position);
- }
- else
- {
- _ForwardIterator __mid = __first;
- std::advance(__mid, __elems_after);
- _GLIBCXX_ASAN_ANNOTATE_GROW(__n);
- std::__uninitialized_copy_a(__mid, __last,
- this->_M_impl._M_finish,
- _M_get_Tp_allocator());
- this->_M_impl._M_finish += __n - __elems_after;
- _GLIBCXX_ASAN_ANNOTATE_GREW(__n - __elems_after);
- std::__uninitialized_move_a(__position.base(),
- __old_finish,
- this->_M_impl._M_finish,
- _M_get_Tp_allocator());
- this->_M_impl._M_finish += __elems_after;
- _GLIBCXX_ASAN_ANNOTATE_GREW(__elems_after);
- std::copy(__first, __mid, __position);
- }
- }
- else
- {
- const size_type __len =
- _M_check_len(__n, "vector::_M_range_insert");
- pointer __new_start(this->_M_allocate(__len));
- pointer __new_finish(__new_start);
- __try
- {
- __new_finish
- = std::__uninitialized_move_if_noexcept_a
- (this->_M_impl._M_start, __position.base(),
- __new_start, _M_get_Tp_allocator());
- __new_finish
- = std::__uninitialized_copy_a(__first, __last,
- __new_finish,
- _M_get_Tp_allocator());
- __new_finish
- = std::__uninitialized_move_if_noexcept_a
- (__position.base(), this->_M_impl._M_finish,
- __new_finish, _M_get_Tp_allocator());
- }
- __catch(...)
- {
- std::_Destroy(__new_start, __new_finish,
- _M_get_Tp_allocator());
- _M_deallocate(__new_start, __len);
- __throw_exception_again;
- }
- std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
- _M_get_Tp_allocator());
- _GLIBCXX_ASAN_ANNOTATE_REINIT;
- _M_deallocate(this->_M_impl._M_start,
- this->_M_impl._M_end_of_storage
- - this->_M_impl._M_start);
- this->_M_impl._M_start = __new_start;
- this->_M_impl._M_finish = __new_finish;
- this->_M_impl._M_end_of_storage = __new_start + __len;
- }
- }
- }
-
-
- // vector<bool>
- template<typename _Alloc>
- void
- vector<bool, _Alloc>::
- _M_reallocate(size_type __n)
- {
- _Bit_pointer __q = this->_M_allocate(__n);
- iterator __start(std::__addressof(*__q), 0);
- iterator __finish(_M_copy_aligned(begin(), end(), __start));
- this->_M_deallocate();
- this->_M_impl._M_start = __start;
- this->_M_impl._M_finish = __finish;
- this->_M_impl._M_end_of_storage = __q + _S_nword(__n);
- }
-
- template<typename _Alloc>
- void
- vector<bool, _Alloc>::
- _M_fill_insert(iterator __position, size_type __n, bool __x)
- {
- if (__n == 0)
- return;
- if (capacity() - size() >= __n)
- {
- std::copy_backward(__position, end(),
- this->_M_impl._M_finish + difference_type(__n));
- std::fill(__position, __position + difference_type(__n), __x);
- this->_M_impl._M_finish += difference_type(__n);
- }
- else
- {
- const size_type __len =
- _M_check_len(__n, "vector<bool>::_M_fill_insert");
- _Bit_pointer __q = this->_M_allocate(__len);
- iterator __start(std::__addressof(*__q), 0);
- iterator __i = _M_copy_aligned(begin(), __position, __start);
- std::fill(__i, __i + difference_type(__n), __x);
- iterator __finish = std::copy(__position, end(),
- __i + difference_type(__n));
- this->_M_deallocate();
- this->_M_impl._M_end_of_storage = __q + _S_nword(__len);
- this->_M_impl._M_start = __start;
- this->_M_impl._M_finish = __finish;
- }
- }
-
- template<typename _Alloc>
- template<typename _ForwardIterator>
- void
- vector<bool, _Alloc>::
- _M_insert_range(iterator __position, _ForwardIterator __first,
- _ForwardIterator __last, std::forward_iterator_tag)
- {
- if (__first != __last)
- {
- size_type __n = std::distance(__first, __last);
- if (capacity() - size() >= __n)
- {
- std::copy_backward(__position, end(),
- this->_M_impl._M_finish
- + difference_type(__n));
- std::copy(__first, __last, __position);
- this->_M_impl._M_finish += difference_type(__n);
- }
- else
- {
- const size_type __len =
- _M_check_len(__n, "vector<bool>::_M_insert_range");
- _Bit_pointer __q = this->_M_allocate(__len);
- iterator __start(std::__addressof(*__q), 0);
- iterator __i = _M_copy_aligned(begin(), __position, __start);
- __i = std::copy(__first, __last, __i);
- iterator __finish = std::copy(__position, end(), __i);
- this->_M_deallocate();
- this->_M_impl._M_end_of_storage = __q + _S_nword(__len);
- this->_M_impl._M_start = __start;
- this->_M_impl._M_finish = __finish;
- }
- }
- }
-
- template<typename _Alloc>
- void
- vector<bool, _Alloc>::
- _M_insert_aux(iterator __position, bool __x)
- {
- if (this->_M_impl._M_finish._M_p != this->_M_impl._M_end_addr())
- {
- std::copy_backward(__position, this->_M_impl._M_finish,
- this->_M_impl._M_finish + 1);
- *__position = __x;
- ++this->_M_impl._M_finish;
- }
- else
- {
- const size_type __len =
- _M_check_len(size_type(1), "vector<bool>::_M_insert_aux");
- _Bit_pointer __q = this->_M_allocate(__len);
- iterator __start(std::__addressof(*__q), 0);
- iterator __i = _M_copy_aligned(begin(), __position, __start);
- *__i++ = __x;
- iterator __finish = std::copy(__position, end(), __i);
- this->_M_deallocate();
- this->_M_impl._M_end_of_storage = __q + _S_nword(__len);
- this->_M_impl._M_start = __start;
- this->_M_impl._M_finish = __finish;
- }
- }
-
- template<typename _Alloc>
- typename vector<bool, _Alloc>::iterator
- vector<bool, _Alloc>::
- _M_erase(iterator __position)
- {
- if (__position + 1 != end())
- std::copy(__position + 1, end(), __position);
- --this->_M_impl._M_finish;
- return __position;
- }
-
- template<typename _Alloc>
- typename vector<bool, _Alloc>::iterator
- vector<bool, _Alloc>::
- _M_erase(iterator __first, iterator __last)
- {
- if (__first != __last)
- _M_erase_at_end(std::copy(__last, end(), __first));
- return __first;
- }
-
- #if __cplusplus >= 201103L
- template<typename _Alloc>
- bool
- vector<bool, _Alloc>::
- _M_shrink_to_fit()
- {
- if (capacity() - size() < int(_S_word_bit))
- return false;
- __try
- {
- _M_reallocate(size());
- return true;
- }
- __catch(...)
- { return false; }
- }
- #endif
-
- _GLIBCXX_END_NAMESPACE_CONTAINER
- _GLIBCXX_END_NAMESPACE_VERSION
- } // namespace std
-
- #if __cplusplus >= 201103L
-
- namespace std _GLIBCXX_VISIBILITY(default)
- {
- _GLIBCXX_BEGIN_NAMESPACE_VERSION
-
- template<typename _Alloc>
- size_t
- hash<_GLIBCXX_STD_C::vector<bool, _Alloc>>::
- operator()(const _GLIBCXX_STD_C::vector<bool, _Alloc>& __b) const noexcept
- {
- size_t __hash = 0;
- using _GLIBCXX_STD_C::_S_word_bit;
- using _GLIBCXX_STD_C::_Bit_type;
-
- const size_t __words = __b.size() / _S_word_bit;
- if (__words)
- {
- const size_t __clength = __words * sizeof(_Bit_type);
- __hash = std::_Hash_impl::hash(__b._M_impl._M_start._M_p, __clength);
- }
-
- const size_t __extrabits = __b.size() % _S_word_bit;
- if (__extrabits)
- {
- _Bit_type __hiword = *__b._M_impl._M_finish._M_p;
- __hiword &= ~((~static_cast<_Bit_type>(0)) << __extrabits);
-
- const size_t __clength
- = (__extrabits + __CHAR_BIT__ - 1) / __CHAR_BIT__;
- if (__words)
- __hash = std::_Hash_impl::hash(&__hiword, __clength, __hash);
- else
- __hash = std::_Hash_impl::hash(&__hiword, __clength);
- }
-
- return __hash;
- }
-
- _GLIBCXX_END_NAMESPACE_VERSION
- } // namespace std
-
- #endif // C++11
-
- #undef _GLIBCXX_ASAN_ANNOTATE_REINIT
- #undef _GLIBCXX_ASAN_ANNOTATE_GROW
- #undef _GLIBCXX_ASAN_ANNOTATE_GREW
- #undef _GLIBCXX_ASAN_ANNOTATE_SHRINK
-
- #endif /* _VECTOR_TCC */
|