| // Vector implementation -*- C++ -*- |
| |
| // Copyright (C) 2001 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 2, 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. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING. If not, write to the Free |
| // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
| // USA. |
| |
| // As a special exception, you may use this file as part of a free software |
| // library without restriction. Specifically, if other files instantiate |
| // templates or use macros or inline functions from this file, or you compile |
| // this file and link it with other files to produce an executable, this |
| // file does not by itself cause the resulting executable to be covered by |
| // the GNU General Public License. This exception does not however |
| // invalidate any other reasons why the executable file might be covered by |
| // the GNU General Public License. |
| |
| /* |
| * |
| * 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 stl_vector.h |
| * This is an internal header file, included by other library headers. |
| * You should not attempt to use it directly. |
| */ |
| |
| #ifndef __GLIBCPP_INTERNAL_VECTOR_H |
| #define __GLIBCPP_INTERNAL_VECTOR_H |
| |
| #include <bits/stl_iterator_base_funcs.h> |
| #include <bits/functexcept.h> |
| #include <bits/concept_check.h> |
| |
| namespace std |
| { |
| |
| // The vector base class serves two purposes. First, its constructor |
| // and destructor allocate (but don't initialize) storage. This makes |
| // exception safety easier. Second, the base class encapsulates all of |
| // the differences between SGI-style allocators and standard-conforming |
| // allocators. |
| |
| // Base class for ordinary allocators. |
| template <class _Tp, class _Allocator, bool _IsStatic> |
| class _Vector_alloc_base { |
| public: |
| typedef typename _Alloc_traits<_Tp, _Allocator>::allocator_type |
| allocator_type; |
| allocator_type get_allocator() const { return _M_data_allocator; } |
| |
| _Vector_alloc_base(const allocator_type& __a) |
| : _M_data_allocator(__a), _M_start(0), _M_finish(0), _M_end_of_storage(0) |
| {} |
| |
| protected: |
| allocator_type _M_data_allocator; |
| _Tp* _M_start; |
| _Tp* _M_finish; |
| _Tp* _M_end_of_storage; |
| |
| _Tp* _M_allocate(size_t __n) |
| { return _M_data_allocator.allocate(__n); } |
| void _M_deallocate(_Tp* __p, size_t __n) |
| { if (__p) _M_data_allocator.deallocate(__p, __n); } |
| }; |
| |
| // Specialization for allocators that have the property that we don't |
| // actually have to store an allocator object. |
| template <class _Tp, class _Allocator> |
| class _Vector_alloc_base<_Tp, _Allocator, true> { |
| public: |
| typedef typename _Alloc_traits<_Tp, _Allocator>::allocator_type |
| allocator_type; |
| allocator_type get_allocator() const { return allocator_type(); } |
| |
| _Vector_alloc_base(const allocator_type&) |
| : _M_start(0), _M_finish(0), _M_end_of_storage(0) |
| {} |
| |
| protected: |
| _Tp* _M_start; |
| _Tp* _M_finish; |
| _Tp* _M_end_of_storage; |
| |
| typedef typename _Alloc_traits<_Tp, _Allocator>::_Alloc_type _Alloc_type; |
| _Tp* _M_allocate(size_t __n) |
| { return _Alloc_type::allocate(__n); } |
| void _M_deallocate(_Tp* __p, size_t __n) |
| { _Alloc_type::deallocate(__p, __n);} |
| }; |
| |
| template <class _Tp, class _Alloc> |
| struct _Vector_base |
| : public _Vector_alloc_base<_Tp, _Alloc, |
| _Alloc_traits<_Tp, _Alloc>::_S_instanceless> |
| { |
| typedef _Vector_alloc_base<_Tp, _Alloc, |
| _Alloc_traits<_Tp, _Alloc>::_S_instanceless> |
| _Base; |
| typedef typename _Base::allocator_type allocator_type; |
| |
| _Vector_base(const allocator_type& __a) : _Base(__a) {} |
| _Vector_base(size_t __n, const allocator_type& __a) : _Base(__a) { |
| _M_start = _M_allocate(__n); |
| _M_finish = _M_start; |
| _M_end_of_storage = _M_start + __n; |
| } |
| |
| ~_Vector_base() { _M_deallocate(_M_start, _M_end_of_storage - _M_start); } |
| }; |
| |
| |
| template <class _Tp, class _Alloc = allocator<_Tp> > |
| class vector : protected _Vector_base<_Tp, _Alloc> |
| { |
| // concept requirements |
| __glibcpp_class_requires(_Tp, _SGIAssignableConcept) |
| |
| private: |
| typedef _Vector_base<_Tp, _Alloc> _Base; |
| typedef vector<_Tp, _Alloc> vector_type; |
| public: |
| typedef _Tp value_type; |
| typedef value_type* pointer; |
| typedef const value_type* const_pointer; |
| typedef __normal_iterator<pointer, vector_type> iterator; |
| typedef __normal_iterator<const_pointer, vector_type> const_iterator; |
| typedef value_type& reference; |
| typedef const value_type& const_reference; |
| typedef size_t size_type; |
| typedef ptrdiff_t difference_type; |
| |
| typedef typename _Base::allocator_type allocator_type; |
| allocator_type get_allocator() const { return _Base::get_allocator(); } |
| |
| typedef reverse_iterator<const_iterator> const_reverse_iterator; |
| typedef reverse_iterator<iterator> reverse_iterator; |
| |
| protected: |
| using _Base::_M_allocate; |
| using _Base::_M_deallocate; |
| using _Base::_M_start; |
| using _Base::_M_finish; |
| using _Base::_M_end_of_storage; |
| |
| protected: |
| void _M_insert_aux(iterator __position, const _Tp& __x); |
| void _M_insert_aux(iterator __position); |
| |
| public: |
| iterator begin() { return iterator (_M_start); } |
| const_iterator begin() const |
| { return const_iterator (_M_start); } |
| iterator end() { return iterator (_M_finish); } |
| const_iterator end() const { return const_iterator (_M_finish); } |
| |
| reverse_iterator rbegin() |
| { return reverse_iterator(end()); } |
| const_reverse_iterator rbegin() const |
| { return const_reverse_iterator(end()); } |
| reverse_iterator rend() |
| { return reverse_iterator(begin()); } |
| const_reverse_iterator rend() const |
| { return const_reverse_iterator(begin()); } |
| |
| size_type size() const |
| { return size_type(end() - begin()); } |
| size_type max_size() const |
| { return size_type(-1) / sizeof(_Tp); } |
| size_type capacity() const |
| { return size_type(const_iterator(_M_end_of_storage) - begin()); } |
| bool empty() const |
| { return begin() == end(); } |
| |
| reference operator[](size_type __n) { return *(begin() + __n); } |
| const_reference operator[](size_type __n) const { return *(begin() + __n); } |
| |
| void _M_range_check(size_type __n) const { |
| if (__n >= this->size()) |
| __throw_out_of_range("vector"); |
| } |
| |
| reference at(size_type __n) |
| { _M_range_check(__n); return (*this)[__n]; } |
| const_reference at(size_type __n) const |
| { _M_range_check(__n); return (*this)[__n]; } |
| |
| explicit vector(const allocator_type& __a = allocator_type()) |
| : _Base(__a) {} |
| |
| vector(size_type __n, const _Tp& __value, |
| const allocator_type& __a = allocator_type()) |
| : _Base(__n, __a) |
| { _M_finish = uninitialized_fill_n(_M_start, __n, __value); } |
| |
| explicit vector(size_type __n) |
| : _Base(__n, allocator_type()) |
| { _M_finish = uninitialized_fill_n(_M_start, __n, _Tp()); } |
| |
| vector(const vector<_Tp, _Alloc>& __x) |
| : _Base(__x.size(), __x.get_allocator()) |
| { _M_finish = uninitialized_copy(__x.begin(), __x.end(), _M_start); } |
| |
| // Check whether it's an integral type. If so, it's not an iterator. |
| template <class _InputIterator> |
| vector(_InputIterator __first, _InputIterator __last, |
| const allocator_type& __a = allocator_type()) |
| : _Base(__a) |
| { |
| typedef typename _Is_integer<_InputIterator>::_Integral _Integral; |
| _M_initialize_aux(__first, __last, _Integral()); |
| } |
| |
| template <class _Integer> |
| void _M_initialize_aux(_Integer __n, _Integer __value, __true_type) |
| { |
| _M_start = _M_allocate(__n); |
| _M_end_of_storage = _M_start + __n; |
| _M_finish = uninitialized_fill_n(_M_start, __n, __value); |
| } |
| |
| template<class _InputIterator> |
| void |
| _M_initialize_aux(_InputIterator __first, _InputIterator __last, __false_type) |
| { |
| typedef typename iterator_traits<_InputIterator>::iterator_category _IterCategory; |
| _M_range_initialize(__first, __last, _IterCategory()); |
| } |
| |
| ~vector() |
| { _Destroy(_M_start, _M_finish); } |
| |
| vector<_Tp, _Alloc>& operator=(const vector<_Tp, _Alloc>& __x); |
| void reserve(size_type __n) { |
| if (capacity() < __n) { |
| const size_type __old_size = size(); |
| pointer __tmp = _M_allocate_and_copy(__n, _M_start, _M_finish); |
| _Destroy(_M_start, _M_finish); |
| _M_deallocate(_M_start, _M_end_of_storage - _M_start); |
| _M_start = __tmp; |
| _M_finish = __tmp + __old_size; |
| _M_end_of_storage = _M_start + __n; |
| } |
| } |
| |
| // 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. |
| |
| void assign(size_type __n, const _Tp& __val) { _M_fill_assign(__n, __val); } |
| void _M_fill_assign(size_type __n, const _Tp& __val); |
| |
| template<class _InputIterator> |
| void |
| assign(_InputIterator __first, _InputIterator __last) |
| { |
| typedef typename _Is_integer<_InputIterator>::_Integral _Integral; |
| _M_assign_dispatch(__first, __last, _Integral()); |
| } |
| |
| template<class _Integer> |
| void |
| _M_assign_dispatch(_Integer __n, _Integer __val, __true_type) |
| { _M_fill_assign((size_type) __n, (_Tp) __val); } |
| |
| template<class _InputIter> |
| void |
| _M_assign_dispatch(_InputIter __first, _InputIter __last, __false_type) |
| { |
| typedef typename iterator_traits<_InputIter>::iterator_category _IterCategory; |
| _M_assign_aux(__first, __last, _IterCategory()); |
| } |
| |
| template <class _InputIterator> |
| void _M_assign_aux(_InputIterator __first, _InputIterator __last, |
| input_iterator_tag); |
| |
| template <class _ForwardIterator> |
| void _M_assign_aux(_ForwardIterator __first, _ForwardIterator __last, |
| forward_iterator_tag); |
| |
| reference front() { return *begin(); } |
| const_reference front() const { return *begin(); } |
| reference back() { return *(end() - 1); } |
| const_reference back() const { return *(end() - 1); } |
| |
| void |
| push_back(const _Tp& __x) |
| { |
| if (_M_finish != _M_end_of_storage) { |
| _Construct(_M_finish, __x); |
| ++_M_finish; |
| } |
| else |
| _M_insert_aux(end(), __x); |
| } |
| |
| void |
| push_back() |
| { |
| if (_M_finish != _M_end_of_storage) { |
| _Construct(_M_finish); |
| ++_M_finish; |
| } |
| else |
| _M_insert_aux(end()); |
| } |
| |
| void |
| swap(vector<_Tp, _Alloc>& __x) |
| { |
| std::swap(_M_start, __x._M_start); |
| std::swap(_M_finish, __x._M_finish); |
| std::swap(_M_end_of_storage, __x._M_end_of_storage); |
| } |
| |
| iterator |
| insert(iterator __position, const _Tp& __x) |
| { |
| size_type __n = __position - begin(); |
| if (_M_finish != _M_end_of_storage && __position == end()) { |
| _Construct(_M_finish, __x); |
| ++_M_finish; |
| } |
| else |
| _M_insert_aux(iterator(__position), __x); |
| return begin() + __n; |
| } |
| |
| iterator |
| insert(iterator __position) |
| { |
| size_type __n = __position - begin(); |
| if (_M_finish != _M_end_of_storage && __position == end()) { |
| _Construct(_M_finish); |
| ++_M_finish; |
| } |
| else |
| _M_insert_aux(iterator(__position)); |
| return begin() + __n; |
| } |
| |
| // Check whether it's an integral type. If so, it's not an iterator. |
| template<class _InputIterator> |
| void |
| insert(iterator __pos, _InputIterator __first, _InputIterator __last) |
| { |
| typedef typename _Is_integer<_InputIterator>::_Integral _Integral; |
| _M_insert_dispatch(__pos, __first, __last, _Integral()); |
| } |
| |
| template <class _Integer> |
| void |
| _M_insert_dispatch(iterator __pos, _Integer __n, _Integer __val, __true_type) |
| { _M_fill_insert(__pos, static_cast<size_type>(__n), static_cast<_Tp>(__val)); } |
| |
| template<class _InputIterator> |
| void |
| _M_insert_dispatch(iterator __pos, |
| _InputIterator __first, _InputIterator __last, |
| __false_type) |
| { |
| typedef typename iterator_traits<_InputIterator>::iterator_category _IterCategory; |
| _M_range_insert(__pos, __first, __last, _IterCategory()); |
| } |
| |
| void insert (iterator __pos, size_type __n, const _Tp& __x) |
| { _M_fill_insert(__pos, __n, __x); } |
| |
| void _M_fill_insert (iterator __pos, size_type __n, const _Tp& __x); |
| |
| void pop_back() { |
| --_M_finish; |
| _Destroy(_M_finish); |
| } |
| iterator erase(iterator __position) { |
| if (__position + 1 != end()) |
| copy(__position + 1, end(), __position); |
| --_M_finish; |
| _Destroy(_M_finish); |
| return __position; |
| } |
| iterator erase(iterator __first, iterator __last) { |
| iterator __i(copy(__last, end(), __first)); |
| _Destroy(__i, end()); |
| _M_finish = _M_finish - (__last - __first); |
| return __first; |
| } |
| |
| void resize(size_type __new_size, const _Tp& __x) { |
| if (__new_size < size()) |
| erase(begin() + __new_size, end()); |
| else |
| insert(end(), __new_size - size(), __x); |
| } |
| void resize(size_type __new_size) { resize(__new_size, _Tp()); } |
| void clear() { erase(begin(), end()); } |
| |
| protected: |
| |
| template <class _ForwardIterator> |
| pointer _M_allocate_and_copy(size_type __n, _ForwardIterator __first, |
| _ForwardIterator __last) |
| { |
| pointer __result = _M_allocate(__n); |
| try { |
| uninitialized_copy(__first, __last, __result); |
| return __result; |
| } |
| catch(...) |
| { |
| _M_deallocate(__result, __n); |
| __throw_exception_again; |
| } |
| } |
| |
| template <class _InputIterator> |
| void _M_range_initialize(_InputIterator __first, |
| _InputIterator __last, input_iterator_tag) |
| { |
| for ( ; __first != __last; ++__first) |
| push_back(*__first); |
| } |
| |
| // This function is only called by the constructor. |
| template <class _ForwardIterator> |
| void _M_range_initialize(_ForwardIterator __first, |
| _ForwardIterator __last, forward_iterator_tag) |
| { |
| size_type __n = 0; |
| distance(__first, __last, __n); |
| _M_start = _M_allocate(__n); |
| _M_end_of_storage = _M_start + __n; |
| _M_finish = uninitialized_copy(__first, __last, _M_start); |
| } |
| |
| template <class _InputIterator> |
| void _M_range_insert(iterator __pos, |
| _InputIterator __first, _InputIterator __last, |
| input_iterator_tag); |
| |
| template <class _ForwardIterator> |
| void _M_range_insert(iterator __pos, |
| _ForwardIterator __first, _ForwardIterator __last, |
| forward_iterator_tag); |
| }; |
| |
| template <class _Tp, class _Alloc> |
| inline bool |
| operator==(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) |
| { |
| return __x.size() == __y.size() && |
| equal(__x.begin(), __x.end(), __y.begin()); |
| } |
| |
| template <class _Tp, class _Alloc> |
| inline bool |
| operator<(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) |
| { |
| return lexicographical_compare(__x.begin(), __x.end(), |
| __y.begin(), __y.end()); |
| } |
| |
| template <class _Tp, class _Alloc> |
| inline void swap(vector<_Tp, _Alloc>& __x, vector<_Tp, _Alloc>& __y) |
| { |
| __x.swap(__y); |
| } |
| |
| template <class _Tp, class _Alloc> |
| inline bool |
| operator!=(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) { |
| return !(__x == __y); |
| } |
| |
| template <class _Tp, class _Alloc> |
| inline bool |
| operator>(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) { |
| return __y < __x; |
| } |
| |
| template <class _Tp, class _Alloc> |
| inline bool |
| operator<=(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) { |
| return !(__y < __x); |
| } |
| |
| template <class _Tp, class _Alloc> |
| inline bool |
| operator>=(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) { |
| return !(__x < __y); |
| } |
| |
| template <class _Tp, class _Alloc> |
| vector<_Tp,_Alloc>& |
| vector<_Tp,_Alloc>::operator=(const vector<_Tp, _Alloc>& __x) |
| { |
| if (&__x != this) { |
| const size_type __xlen = __x.size(); |
| if (__xlen > capacity()) { |
| pointer __tmp = _M_allocate_and_copy(__xlen, __x.begin(), __x.end()); |
| _Destroy(_M_start, _M_finish); |
| _M_deallocate(_M_start, _M_end_of_storage - _M_start); |
| _M_start = __tmp; |
| _M_end_of_storage = _M_start + __xlen; |
| } |
| else if (size() >= __xlen) { |
| iterator __i(copy(__x.begin(), __x.end(), begin())); |
| _Destroy(__i, end()); |
| } |
| else { |
| copy(__x.begin(), __x.begin() + size(), _M_start); |
| uninitialized_copy(__x.begin() + size(), __x.end(), _M_finish); |
| } |
| _M_finish = _M_start + __xlen; |
| } |
| return *this; |
| } |
| |
| template <class _Tp, class _Alloc> |
| void vector<_Tp, _Alloc>::_M_fill_assign(size_t __n, const value_type& __val) |
| { |
| if (__n > capacity()) { |
| vector<_Tp, _Alloc> __tmp(__n, __val, get_allocator()); |
| __tmp.swap(*this); |
| } |
| else if (__n > size()) { |
| fill(begin(), end(), __val); |
| _M_finish = uninitialized_fill_n(_M_finish, __n - size(), __val); |
| } |
| else |
| erase(fill_n(begin(), __n, __val), end()); |
| } |
| |
| template <class _Tp, class _Alloc> template <class _InputIter> |
| void vector<_Tp, _Alloc>::_M_assign_aux(_InputIter __first, _InputIter __last, |
| input_iterator_tag) { |
| iterator __cur(begin()); |
| for ( ; __first != __last && __cur != end(); ++__cur, ++__first) |
| *__cur = *__first; |
| if (__first == __last) |
| erase(__cur, end()); |
| else |
| insert(end(), __first, __last); |
| } |
| |
| template <class _Tp, class _Alloc> template <class _ForwardIter> |
| void |
| vector<_Tp, _Alloc>::_M_assign_aux(_ForwardIter __first, _ForwardIter __last, |
| forward_iterator_tag) { |
| size_type __len = 0; |
| distance(__first, __last, __len); |
| |
| if (__len > capacity()) { |
| pointer __tmp(_M_allocate_and_copy(__len, __first, __last)); |
| _Destroy(_M_start, _M_finish); |
| _M_deallocate(_M_start, _M_end_of_storage - _M_start); |
| _M_start = __tmp; |
| _M_end_of_storage = _M_finish = _M_start + __len; |
| } |
| else if (size() >= __len) { |
| iterator __new_finish(copy(__first, __last, _M_start)); |
| _Destroy(__new_finish, end()); |
| _M_finish = __new_finish.base(); |
| } |
| else { |
| _ForwardIter __mid = __first; |
| advance(__mid, size()); |
| copy(__first, __mid, _M_start); |
| _M_finish = uninitialized_copy(__mid, __last, _M_finish); |
| } |
| } |
| |
| template <class _Tp, class _Alloc> |
| void |
| vector<_Tp, _Alloc>::_M_insert_aux(iterator __position, const _Tp& __x) |
| { |
| if (_M_finish != _M_end_of_storage) { |
| _Construct(_M_finish, *(_M_finish - 1)); |
| ++_M_finish; |
| _Tp __x_copy = __x; |
| copy_backward(__position, iterator(_M_finish - 2), iterator(_M_finish- 1)); |
| *__position = __x_copy; |
| } |
| else { |
| const size_type __old_size = size(); |
| const size_type __len = __old_size != 0 ? 2 * __old_size : 1; |
| iterator __new_start(_M_allocate(__len)); |
| iterator __new_finish(__new_start); |
| try { |
| __new_finish = uninitialized_copy(iterator(_M_start), __position, |
| __new_start); |
| _Construct(__new_finish.base(), __x); |
| ++__new_finish; |
| __new_finish = uninitialized_copy(__position, iterator(_M_finish), |
| __new_finish); |
| } |
| catch(...) |
| { |
| _Destroy(__new_start,__new_finish); |
| _M_deallocate(__new_start.base(),__len); |
| __throw_exception_again; |
| } |
| _Destroy(begin(), end()); |
| _M_deallocate(_M_start, _M_end_of_storage - _M_start); |
| _M_start = __new_start.base(); |
| _M_finish = __new_finish.base(); |
| _M_end_of_storage = __new_start.base() + __len; |
| } |
| } |
| |
| template <class _Tp, class _Alloc> |
| void |
| vector<_Tp, _Alloc>::_M_insert_aux(iterator __position) |
| { |
| if (_M_finish != _M_end_of_storage) { |
| _Construct(_M_finish, *(_M_finish - 1)); |
| ++_M_finish; |
| copy_backward(__position, iterator(_M_finish - 2), |
| iterator(_M_finish - 1)); |
| *__position = _Tp(); |
| } |
| else { |
| const size_type __old_size = size(); |
| const size_type __len = __old_size != 0 ? 2 * __old_size : 1; |
| pointer __new_start = _M_allocate(__len); |
| pointer __new_finish = __new_start; |
| try { |
| __new_finish = uninitialized_copy(iterator(_M_start), __position, |
| __new_start); |
| _Construct(__new_finish); |
| ++__new_finish; |
| __new_finish = uninitialized_copy(__position, iterator(_M_finish), |
| __new_finish); |
| } |
| catch(...) |
| { |
| _Destroy(__new_start,__new_finish); |
| _M_deallocate(__new_start,__len); |
| __throw_exception_again; |
| } |
| _Destroy(begin(), end()); |
| _M_deallocate(_M_start, _M_end_of_storage - _M_start); |
| _M_start = __new_start; |
| _M_finish = __new_finish; |
| _M_end_of_storage = __new_start + __len; |
| } |
| } |
| |
| template <class _Tp, class _Alloc> |
| void vector<_Tp, _Alloc>::_M_fill_insert(iterator __position, size_type __n, |
| const _Tp& __x) |
| { |
| if (__n != 0) { |
| if (size_type(_M_end_of_storage - _M_finish) >= __n) { |
| _Tp __x_copy = __x; |
| const size_type __elems_after = end() - __position; |
| iterator __old_finish(_M_finish); |
| if (__elems_after > __n) { |
| uninitialized_copy(_M_finish - __n, _M_finish, _M_finish); |
| _M_finish += __n; |
| copy_backward(__position, __old_finish - __n, __old_finish); |
| fill(__position, __position + __n, __x_copy); |
| } |
| else { |
| uninitialized_fill_n(_M_finish, __n - __elems_after, __x_copy); |
| _M_finish += __n - __elems_after; |
| uninitialized_copy(__position, __old_finish, _M_finish); |
| _M_finish += __elems_after; |
| fill(__position, __old_finish, __x_copy); |
| } |
| } |
| else { |
| const size_type __old_size = size(); |
| const size_type __len = __old_size + max(__old_size, __n); |
| iterator __new_start(_M_allocate(__len)); |
| iterator __new_finish(__new_start); |
| try { |
| __new_finish = uninitialized_copy(begin(), __position, __new_start); |
| __new_finish = uninitialized_fill_n(__new_finish, __n, __x); |
| __new_finish |
| = uninitialized_copy(__position, end(), __new_finish); |
| } |
| catch(...) |
| { |
| _Destroy(__new_start,__new_finish); |
| _M_deallocate(__new_start.base(),__len); |
| __throw_exception_again; |
| } |
| _Destroy(_M_start, _M_finish); |
| _M_deallocate(_M_start, _M_end_of_storage - _M_start); |
| _M_start = __new_start.base(); |
| _M_finish = __new_finish.base(); |
| _M_end_of_storage = __new_start.base() + __len; |
| } |
| } |
| } |
| |
| template <class _Tp, class _Alloc> template <class _InputIterator> |
| void |
| vector<_Tp, _Alloc>::_M_range_insert(iterator __pos, |
| _InputIterator __first, |
| _InputIterator __last, |
| input_iterator_tag) |
| { |
| for ( ; __first != __last; ++__first) { |
| __pos = insert(__pos, *__first); |
| ++__pos; |
| } |
| } |
| |
| template <class _Tp, class _Alloc> template <class _ForwardIterator> |
| void |
| vector<_Tp, _Alloc>::_M_range_insert(iterator __position, |
| _ForwardIterator __first, |
| _ForwardIterator __last, |
| forward_iterator_tag) |
| { |
| if (__first != __last) { |
| size_type __n = 0; |
| distance(__first, __last, __n); |
| if (size_type(_M_end_of_storage - _M_finish) >= __n) { |
| const size_type __elems_after = end() - __position; |
| iterator __old_finish(_M_finish); |
| if (__elems_after > __n) { |
| uninitialized_copy(_M_finish - __n, _M_finish, _M_finish); |
| _M_finish += __n; |
| copy_backward(__position, __old_finish - __n, __old_finish); |
| copy(__first, __last, __position); |
| } |
| else { |
| _ForwardIterator __mid = __first; |
| advance(__mid, __elems_after); |
| uninitialized_copy(__mid, __last, _M_finish); |
| _M_finish += __n - __elems_after; |
| uninitialized_copy(__position, __old_finish, _M_finish); |
| _M_finish += __elems_after; |
| copy(__first, __mid, __position); |
| } |
| } |
| else { |
| const size_type __old_size = size(); |
| const size_type __len = __old_size + max(__old_size, __n); |
| iterator __new_start(_M_allocate(__len)); |
| iterator __new_finish(__new_start); |
| try { |
| __new_finish = uninitialized_copy(iterator(_M_start), |
| __position, __new_start); |
| __new_finish = uninitialized_copy(__first, __last, __new_finish); |
| __new_finish |
| = uninitialized_copy(__position, iterator(_M_finish), __new_finish); |
| } |
| catch(...) |
| { |
| _Destroy(__new_start,__new_finish); |
| _M_deallocate(__new_start.base(), __len); |
| __throw_exception_again; |
| } |
| _Destroy(_M_start, _M_finish); |
| _M_deallocate(_M_start, _M_end_of_storage - _M_start); |
| _M_start = __new_start.base(); |
| _M_finish = __new_finish.base(); |
| _M_end_of_storage = __new_start.base() + __len; |
| } |
| } |
| } |
| |
| } // namespace std |
| |
| #endif /* __GLIBCPP_INTERNAL_VECTOR_H */ |
| |
| // Local Variables: |
| // mode:C++ |
| // End: |