forked from KolibriOS/kolibrios
728 lines
24 KiB
C++
728 lines
24 KiB
C++
/*
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*
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* Copyright (c) 1994
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* Hewlett-Packard Company
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Hewlett-Packard Company makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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*
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* Copyright (c) 1996
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* Silicon Graphics Computer Systems, Inc.
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Silicon Graphics makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*/
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/* NOTE: This is an internal header file, included by other STL headers.
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* You should not attempt to use it directly.
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*/
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#ifndef __SGI_STL_INTERNAL_VECTOR_H
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#define __SGI_STL_INTERNAL_VECTOR_H
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#include <bits/stl_iterator_base_funcs.h>
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#include <bits/functexcept.h>
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#include <bits/concept_check.h>
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namespace std
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{
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// The vector base class serves two purposes. First, its constructor
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// and destructor allocate (but don't initialize) storage. This makes
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// exception safety easier. Second, the base class encapsulates all of
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// the differences between SGI-style allocators and standard-conforming
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// allocators.
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// Base class for ordinary allocators.
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template <class _Tp, class _Allocator, bool _IsStatic>
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class _Vector_alloc_base {
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public:
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typedef typename _Alloc_traits<_Tp, _Allocator>::allocator_type
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allocator_type;
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allocator_type get_allocator() const { return _M_data_allocator; }
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_Vector_alloc_base(const allocator_type& __a)
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: _M_data_allocator(__a), _M_start(0), _M_finish(0), _M_end_of_storage(0)
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{}
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protected:
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allocator_type _M_data_allocator;
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_Tp* _M_start;
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_Tp* _M_finish;
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_Tp* _M_end_of_storage;
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_Tp* _M_allocate(size_t __n)
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{ return _M_data_allocator.allocate(__n); }
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void _M_deallocate(_Tp* __p, size_t __n)
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{ if (__p) _M_data_allocator.deallocate(__p, __n); }
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};
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// Specialization for allocators that have the property that we don't
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// actually have to store an allocator object.
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template <class _Tp, class _Allocator>
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class _Vector_alloc_base<_Tp, _Allocator, true> {
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public:
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typedef typename _Alloc_traits<_Tp, _Allocator>::allocator_type
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allocator_type;
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allocator_type get_allocator() const { return allocator_type(); }
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_Vector_alloc_base(const allocator_type&)
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: _M_start(0), _M_finish(0), _M_end_of_storage(0)
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{}
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protected:
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_Tp* _M_start;
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_Tp* _M_finish;
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_Tp* _M_end_of_storage;
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typedef typename _Alloc_traits<_Tp, _Allocator>::_Alloc_type _Alloc_type;
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_Tp* _M_allocate(size_t __n)
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{ return _Alloc_type::allocate(__n); }
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void _M_deallocate(_Tp* __p, size_t __n)
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{ _Alloc_type::deallocate(__p, __n);}
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};
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template <class _Tp, class _Alloc>
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struct _Vector_base
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: public _Vector_alloc_base<_Tp, _Alloc,
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_Alloc_traits<_Tp, _Alloc>::_S_instanceless>
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{
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typedef _Vector_alloc_base<_Tp, _Alloc,
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_Alloc_traits<_Tp, _Alloc>::_S_instanceless>
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_Base;
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typedef typename _Base::allocator_type allocator_type;
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_Vector_base(const allocator_type& __a) : _Base(__a) {}
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_Vector_base(size_t __n, const allocator_type& __a) : _Base(__a) {
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_M_start = _M_allocate(__n);
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_M_finish = _M_start;
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_M_end_of_storage = _M_start + __n;
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}
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~_Vector_base() { _M_deallocate(_M_start, _M_end_of_storage - _M_start); }
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};
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template <class _Tp, class _Alloc = allocator<_Tp> >
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class vector : protected _Vector_base<_Tp, _Alloc>
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{
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// concept requirements
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__glibcpp_class_requires(_Tp, _SGIAssignableConcept);
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private:
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typedef _Vector_base<_Tp, _Alloc> _Base;
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typedef vector<_Tp, _Alloc> vector_type;
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public:
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typedef _Tp value_type;
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typedef value_type* pointer;
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typedef const value_type* const_pointer;
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typedef __normal_iterator<pointer, vector_type> iterator;
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typedef __normal_iterator<const_pointer, vector_type> const_iterator;
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typedef value_type& reference;
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typedef const value_type& const_reference;
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typedef size_t size_type;
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typedef ptrdiff_t difference_type;
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typedef typename _Base::allocator_type allocator_type;
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allocator_type get_allocator() const { return _Base::get_allocator(); }
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typedef reverse_iterator<const_iterator> const_reverse_iterator;
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typedef reverse_iterator<iterator> reverse_iterator;
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protected:
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using _Base::_M_allocate;
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using _Base::_M_deallocate;
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using _Base::_M_start;
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using _Base::_M_finish;
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using _Base::_M_end_of_storage;
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protected:
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void _M_insert_aux(iterator __position, const _Tp& __x);
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void _M_insert_aux(iterator __position);
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public:
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iterator begin() { return iterator (_M_start); }
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const_iterator begin() const
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{ return const_iterator (_M_start); }
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iterator end() { return iterator (_M_finish); }
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const_iterator end() const { return const_iterator (_M_finish); }
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reverse_iterator rbegin()
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{ return reverse_iterator(end()); }
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const_reverse_iterator rbegin() const
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{ return const_reverse_iterator(end()); }
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reverse_iterator rend()
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{ return reverse_iterator(begin()); }
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const_reverse_iterator rend() const
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{ return const_reverse_iterator(begin()); }
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size_type size() const
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{ return size_type(end() - begin()); }
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size_type max_size() const
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{ return size_type(-1) / sizeof(_Tp); }
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size_type capacity() const
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{ return size_type(const_iterator(_M_end_of_storage) - begin()); }
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bool empty() const
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{ return begin() == end(); }
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reference operator[](size_type __n) { return *(begin() + __n); }
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const_reference operator[](size_type __n) const { return *(begin() + __n); }
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void _M_range_check(size_type __n) const {
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if (__n >= this->size())
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__throw_out_of_range("vector");
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}
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reference at(size_type __n)
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{ _M_range_check(__n); return (*this)[__n]; }
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const_reference at(size_type __n) const
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{ _M_range_check(__n); return (*this)[__n]; }
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explicit vector(const allocator_type& __a = allocator_type())
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: _Base(__a) {}
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vector(size_type __n, const _Tp& __value,
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const allocator_type& __a = allocator_type())
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: _Base(__n, __a)
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{ _M_finish = uninitialized_fill_n(_M_start, __n, __value); }
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explicit vector(size_type __n)
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: _Base(__n, allocator_type())
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{ _M_finish = uninitialized_fill_n(_M_start, __n, _Tp()); }
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vector(const vector<_Tp, _Alloc>& __x)
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: _Base(__x.size(), __x.get_allocator())
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{ _M_finish = uninitialized_copy(__x.begin(), __x.end(), _M_start); }
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// Check whether it's an integral type. If so, it's not an iterator.
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template <class _InputIterator>
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vector(_InputIterator __first, _InputIterator __last,
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const allocator_type& __a = allocator_type()) : _Base(__a) {
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typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
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_M_initialize_aux(__first, __last, _Integral());
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}
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template <class _Integer>
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void _M_initialize_aux(_Integer __n, _Integer __value, __true_type) {
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_M_start = _M_allocate(__n);
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_M_end_of_storage = _M_start + __n;
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_M_finish = uninitialized_fill_n(_M_start, __n, __value);
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}
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template <class _InputIterator>
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void _M_initialize_aux(_InputIterator __first, _InputIterator __last,
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__false_type) {
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_M_range_initialize(__first, __last, __iterator_category(__first));
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}
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~vector() { destroy(_M_start, _M_finish); }
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vector<_Tp, _Alloc>& operator=(const vector<_Tp, _Alloc>& __x);
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void reserve(size_type __n) {
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if (capacity() < __n) {
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const size_type __old_size = size();
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pointer __tmp = _M_allocate_and_copy(__n, _M_start, _M_finish);
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destroy(_M_start, _M_finish);
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_M_deallocate(_M_start, _M_end_of_storage - _M_start);
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_M_start = __tmp;
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_M_finish = __tmp + __old_size;
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_M_end_of_storage = _M_start + __n;
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}
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}
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// assign(), a generalized assignment member function. Two
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// versions: one that takes a count, and one that takes a range.
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// The range version is a member template, so we dispatch on whether
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// or not the type is an integer.
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void assign(size_type __n, const _Tp& __val) { _M_fill_assign(__n, __val); }
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void _M_fill_assign(size_type __n, const _Tp& __val);
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template <class _InputIterator>
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void assign(_InputIterator __first, _InputIterator __last) {
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typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
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_M_assign_dispatch(__first, __last, _Integral());
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}
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template <class _Integer>
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void _M_assign_dispatch(_Integer __n, _Integer __val, __true_type)
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{ _M_fill_assign((size_type) __n, (_Tp) __val); }
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template <class _InputIter>
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void _M_assign_dispatch(_InputIter __first, _InputIter __last, __false_type)
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{ _M_assign_aux(__first, __last, __iterator_category(__first)); }
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template <class _InputIterator>
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void _M_assign_aux(_InputIterator __first, _InputIterator __last,
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input_iterator_tag);
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template <class _ForwardIterator>
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void _M_assign_aux(_ForwardIterator __first, _ForwardIterator __last,
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forward_iterator_tag);
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reference front() { return *begin(); }
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const_reference front() const { return *begin(); }
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reference back() { return *(end() - 1); }
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const_reference back() const { return *(end() - 1); }
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void push_back(const _Tp& __x) {
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if (_M_finish != _M_end_of_storage) {
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construct(_M_finish, __x);
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++_M_finish;
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}
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else
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_M_insert_aux(end(), __x);
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}
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void push_back() {
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if (_M_finish != _M_end_of_storage) {
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construct(_M_finish);
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++_M_finish;
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}
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else
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_M_insert_aux(end());
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}
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void swap(vector<_Tp, _Alloc>& __x) {
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std::swap(_M_start, __x._M_start);
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std::swap(_M_finish, __x._M_finish);
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std::swap(_M_end_of_storage, __x._M_end_of_storage);
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}
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iterator insert(iterator __position, const _Tp& __x) {
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size_type __n = __position - begin();
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if (_M_finish != _M_end_of_storage && __position == end()) {
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construct(_M_finish, __x);
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++_M_finish;
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}
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else
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_M_insert_aux(iterator(__position), __x);
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return begin() + __n;
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}
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iterator insert(iterator __position) {
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size_type __n = __position - begin();
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if (_M_finish != _M_end_of_storage && __position == end()) {
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construct(_M_finish);
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++_M_finish;
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}
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else
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_M_insert_aux(iterator(__position));
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return begin() + __n;
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}
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// Check whether it's an integral type. If so, it's not an iterator.
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template <class _InputIterator>
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void insert(iterator __pos, _InputIterator __first, _InputIterator __last) {
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typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
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_M_insert_dispatch(__pos, __first, __last, _Integral());
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}
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template <class _Integer>
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void _M_insert_dispatch(iterator __pos, _Integer __n, _Integer __val,
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__true_type)
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{ _M_fill_insert(__pos, (size_type) __n, (_Tp) __val); }
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template <class _InputIterator>
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void _M_insert_dispatch(iterator __pos,
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_InputIterator __first, _InputIterator __last,
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__false_type) {
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_M_range_insert(__pos, __first, __last, __iterator_category(__first));
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}
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void insert (iterator __pos, size_type __n, const _Tp& __x)
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{ _M_fill_insert(__pos, __n, __x); }
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void _M_fill_insert (iterator __pos, size_type __n, const _Tp& __x);
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void pop_back() {
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--_M_finish;
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destroy(_M_finish);
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}
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iterator erase(iterator __position) {
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if (__position + 1 != end())
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copy(__position + 1, end(), __position);
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--_M_finish;
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destroy(_M_finish);
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return __position;
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}
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iterator erase(iterator __first, iterator __last) {
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iterator __i(copy(__last, end(), __first));
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destroy(__i, end());
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_M_finish = _M_finish - (__last - __first);
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return __first;
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}
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void resize(size_type __new_size, const _Tp& __x) {
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if (__new_size < size())
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erase(begin() + __new_size, end());
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else
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insert(end(), __new_size - size(), __x);
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}
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void resize(size_type __new_size) { resize(__new_size, _Tp()); }
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void clear() { erase(begin(), end()); }
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protected:
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template <class _ForwardIterator>
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pointer _M_allocate_and_copy(size_type __n, _ForwardIterator __first,
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_ForwardIterator __last)
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{
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pointer __result = _M_allocate(__n);
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__STL_TRY {
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uninitialized_copy(__first, __last, __result);
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return __result;
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}
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__STL_UNWIND(_M_deallocate(__result, __n));
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}
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template <class _InputIterator>
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void _M_range_initialize(_InputIterator __first,
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_InputIterator __last, input_iterator_tag)
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{
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for ( ; __first != __last; ++__first)
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push_back(*__first);
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}
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// This function is only called by the constructor.
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template <class _ForwardIterator>
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void _M_range_initialize(_ForwardIterator __first,
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_ForwardIterator __last, forward_iterator_tag)
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{
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size_type __n = 0;
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distance(__first, __last, __n);
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_M_start = _M_allocate(__n);
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_M_end_of_storage = _M_start + __n;
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_M_finish = uninitialized_copy(__first, __last, _M_start);
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}
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template <class _InputIterator>
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void _M_range_insert(iterator __pos,
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_InputIterator __first, _InputIterator __last,
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input_iterator_tag);
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template <class _ForwardIterator>
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void _M_range_insert(iterator __pos,
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_ForwardIterator __first, _ForwardIterator __last,
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forward_iterator_tag);
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};
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template <class _Tp, class _Alloc>
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inline bool
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operator==(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
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{
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return __x.size() == __y.size() &&
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equal(__x.begin(), __x.end(), __y.begin());
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}
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template <class _Tp, class _Alloc>
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inline bool
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operator<(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
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{
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return lexicographical_compare(__x.begin(), __x.end(),
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__y.begin(), __y.end());
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}
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template <class _Tp, class _Alloc>
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inline void swap(vector<_Tp, _Alloc>& __x, vector<_Tp, _Alloc>& __y)
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{
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__x.swap(__y);
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}
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template <class _Tp, class _Alloc>
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inline bool
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operator!=(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) {
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return !(__x == __y);
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}
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template <class _Tp, class _Alloc>
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inline bool
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operator>(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) {
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return __y < __x;
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}
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template <class _Tp, class _Alloc>
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inline bool
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operator<=(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) {
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return !(__y < __x);
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}
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template <class _Tp, class _Alloc>
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inline bool
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operator>=(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) {
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return !(__x < __y);
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}
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template <class _Tp, class _Alloc>
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vector<_Tp,_Alloc>&
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vector<_Tp,_Alloc>::operator=(const vector<_Tp, _Alloc>& __x)
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{
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if (&__x != this) {
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const size_type __xlen = __x.size();
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if (__xlen > capacity()) {
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pointer __tmp = _M_allocate_and_copy(__xlen, __x.begin(), __x.end());
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destroy(_M_start, _M_finish);
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_M_deallocate(_M_start, _M_end_of_storage - _M_start);
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_M_start = __tmp;
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_M_end_of_storage = _M_start + __xlen;
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}
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else if (size() >= __xlen) {
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iterator __i(copy(__x.begin(), __x.end(), begin()));
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destroy(__i, end());
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}
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else {
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copy(__x.begin(), __x.begin() + size(), _M_start);
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uninitialized_copy(__x.begin() + size(), __x.end(), _M_finish);
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}
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_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);
|
|
__STL_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);
|
|
}
|
|
__STL_UNWIND((destroy(__new_start,__new_finish),
|
|
_M_deallocate(__new_start.base(),__len)));
|
|
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;
|
|
__STL_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);
|
|
}
|
|
__STL_UNWIND((destroy(__new_start,__new_finish),
|
|
_M_deallocate(__new_start,__len)));
|
|
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);
|
|
__STL_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);
|
|
}
|
|
__STL_UNWIND((destroy(__new_start,__new_finish),
|
|
_M_deallocate(__new_start.base(),__len)));
|
|
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);
|
|
__STL_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);
|
|
}
|
|
__STL_UNWIND((destroy(__new_start,__new_finish),
|
|
_M_deallocate(__new_start.base(),__len)));
|
|
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 /* __SGI_STL_INTERNAL_VECTOR_H */
|
|
|
|
// Local Variables:
|
|
// mode:C++
|
|
// End:
|