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b49df33399
* stl_rope.h: Fix initialization order.
* stl_deque.h: Use static_casts<size_type>(signed_type).
Co-Authored-By: Matthias Klose <doko@cs.tu-berlin.de>
From-SVN: r30622
1699 lines
55 KiB
C++
1699 lines
55 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) 1997
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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_DEQUE_H
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#define __SGI_STL_INTERNAL_DEQUE_H
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/* Class invariants:
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* For any nonsingular iterator i:
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* i.node is the address of an element in the map array. The
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* contents of i.node is a pointer to the beginning of a node.
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* i.first == *(i.node)
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* i.last == i.first + node_size
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* i.cur is a pointer in the range [i.first, i.last). NOTE:
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* the implication of this is that i.cur is always a dereferenceable
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* pointer, even if i is a past-the-end iterator.
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* Start and Finish are always nonsingular iterators. NOTE: this means
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* that an empty deque must have one node, and that a deque
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* with N elements, where N is the buffer size, must have two nodes.
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* For every node other than start.node and finish.node, every element
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* in the node is an initialized object. If start.node == finish.node,
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* then [start.cur, finish.cur) are initialized objects, and
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* the elements outside that range are uninitialized storage. Otherwise,
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* [start.cur, start.last) and [finish.first, finish.cur) are initialized
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* objects, and [start.first, start.cur) and [finish.cur, finish.last)
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* are uninitialized storage.
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* [map, map + map_size) is a valid, non-empty range.
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* [start.node, finish.node] is a valid range contained within
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* [map, map + map_size).
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* A pointer in the range [map, map + map_size) points to an allocated node
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* if and only if the pointer is in the range [start.node, finish.node].
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*/
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/*
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* In previous versions of deque, node_size was fixed by the
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* implementation. In this version, however, users can select
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* the node size. Deque has three template parameters; the third,
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* a number of type size_t, is the number of elements per node.
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* If the third template parameter is 0 (which is the default),
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* then deque will use a default node size.
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*
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* The only reason for using an alternate node size is if your application
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* requires a different performance tradeoff than the default. If,
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* for example, your program contains many deques each of which contains
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* only a few elements, then you might want to save memory (possibly
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* by sacrificing some speed) by using smaller nodes.
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*
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* Unfortunately, some compilers have trouble with non-type template
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* parameters; stl_config.h defines __STL_NON_TYPE_TMPL_PARAM_BUG if
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* that is the case. If your compiler is one of them, then you will
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* not be able to use alternate node sizes; you will have to use the
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* default value.
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*/
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__STL_BEGIN_NAMESPACE
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#if defined(__sgi) && !defined(__GNUC__) && (_MIPS_SIM != _MIPS_SIM_ABI32)
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#pragma set woff 1174
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#pragma set woff 1375
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#endif
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// Note: this function is simply a kludge to work around several compilers'
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// bugs in handling constant expressions.
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inline size_t
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__deque_buf_size(size_t __n, size_t __size)
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{
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return __n != 0 ? __n : (__size < 512 ? size_t(512 / __size) : size_t(1));
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}
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#ifndef __STL_NON_TYPE_TMPL_PARAM_BUG
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template <class _Tp, class _Ref, class _Ptr, size_t __bufsiz>
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struct _Deque_iterator {
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typedef _Deque_iterator<_Tp,_Tp&,_Tp*,__bufsiz> iterator;
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typedef _Deque_iterator<_Tp,const _Tp&,const _Tp*,__bufsiz> const_iterator;
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static size_t
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_S_buffer_size() { return __deque_buf_size(__bufsiz, sizeof(_Tp)); }
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#else /* __STL_NON_TYPE_TMPL_PARAM_BUG */
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template <class _Tp, class _Ref, class _Ptr>
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struct _Deque_iterator {
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typedef _Deque_iterator<_Tp, _Tp&, _Tp*> iterator;
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typedef _Deque_iterator<_Tp, const _Tp&, const _Tp*> const_iterator;
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static size_t
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_S_buffer_size() { return __deque_buf_size(0, sizeof(_Tp)); }
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#endif
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typedef random_access_iterator_tag iterator_category;
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typedef _Tp value_type;
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typedef _Ptr pointer;
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typedef _Ref reference;
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typedef size_t size_type;
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typedef ptrdiff_t difference_type;
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typedef _Tp** _Map_pointer;
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typedef _Deque_iterator _Self;
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_Tp* _M_cur;
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_Tp* _M_first;
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_Tp* _M_last;
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_Map_pointer _M_node;
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_Deque_iterator(_Tp* __x, _Map_pointer __y)
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: _M_cur(__x), _M_first(*__y),
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_M_last(*__y + _S_buffer_size()), _M_node(__y) {}
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_Deque_iterator() : _M_cur(0), _M_first(0), _M_last(0), _M_node(0) {}
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_Deque_iterator(const iterator& __x)
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: _M_cur(__x._M_cur), _M_first(__x._M_first),
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_M_last(__x._M_last), _M_node(__x._M_node) {}
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reference operator*() const { return *_M_cur; }
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#ifndef __SGI_STL_NO_ARROW_OPERATOR
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pointer operator->() const { return _M_cur; }
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#endif /* __SGI_STL_NO_ARROW_OPERATOR */
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difference_type operator-(const _Self& __x) const {
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return difference_type(_S_buffer_size()) * (_M_node - __x._M_node - 1) +
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(_M_cur - _M_first) + (__x._M_last - __x._M_cur);
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}
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_Self& operator++() {
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++_M_cur;
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if (_M_cur == _M_last) {
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_M_set_node(_M_node + 1);
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_M_cur = _M_first;
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}
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return *this;
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}
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_Self operator++(int) {
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_Self __tmp = *this;
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++*this;
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return __tmp;
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}
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_Self& operator--() {
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if (_M_cur == _M_first) {
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_M_set_node(_M_node - 1);
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_M_cur = _M_last;
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}
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--_M_cur;
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return *this;
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}
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_Self operator--(int) {
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_Self __tmp = *this;
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--*this;
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return __tmp;
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}
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_Self& operator+=(difference_type __n)
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{
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difference_type __offset = __n + (_M_cur - _M_first);
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if (__offset >= 0 && __offset < difference_type(_S_buffer_size()))
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_M_cur += __n;
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else {
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difference_type __node_offset =
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__offset > 0 ? __offset / difference_type(_S_buffer_size())
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: -difference_type((-__offset - 1) / _S_buffer_size()) - 1;
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_M_set_node(_M_node + __node_offset);
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_M_cur = _M_first +
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(__offset - __node_offset * difference_type(_S_buffer_size()));
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}
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return *this;
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}
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_Self operator+(difference_type __n) const
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{
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_Self __tmp = *this;
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return __tmp += __n;
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}
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_Self& operator-=(difference_type __n) { return *this += -__n; }
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_Self operator-(difference_type __n) const {
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_Self __tmp = *this;
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return __tmp -= __n;
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}
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reference operator[](difference_type __n) const { return *(*this + __n); }
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bool operator==(const _Self& __x) const { return _M_cur == __x._M_cur; }
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bool operator!=(const _Self& __x) const { return !(*this == __x); }
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bool operator<(const _Self& __x) const {
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return (_M_node == __x._M_node) ?
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(_M_cur < __x._M_cur) : (_M_node < __x._M_node);
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}
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void _M_set_node(_Map_pointer __new_node) {
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_M_node = __new_node;
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_M_first = *__new_node;
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_M_last = _M_first + difference_type(_S_buffer_size());
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}
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};
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#ifndef __STL_CLASS_PARTIAL_SPECIALIZATION
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#ifndef __STL_NON_TYPE_TMPL_PARAM_BUG
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template <class _Tp, class _Ref, class _Ptr, size_t __bufsiz>
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inline random_access_iterator_tag
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iterator_category(const _Deque_iterator<_Tp,_Ref,_Ptr,__bufsiz>&) {
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return random_access_iterator_tag();
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}
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template <class _Tp, class _Ref, class _Ptr, size_t __bufsiz>
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inline _Tp*
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value_type(const _Deque_iterator<_Tp,_Ref,_Ptr,__bufsiz>&) {
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return 0;
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}
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template <class _Tp, class _Ref, class _Ptr, size_t __bufsiz>
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inline ptrdiff_t*
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distance_type(const _Deque_iterator<_Tp,_Ref,_Ptr,__bufsiz>&) {
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return 0;
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}
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#else /* __STL_NON_TYPE_TMPL_PARAM_BUG */
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template <class _Tp, class _Ref, class _Ptr>
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inline random_access_iterator_tag
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iterator_category(const _Deque_iterator<_Tp,_Ref,_Ptr>&)
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{
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return random_access_iterator_tag();
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}
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template <class _Tp, class _Ref, class _Ptr>
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inline _Tp*
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value_type(const _Deque_iterator<_Tp,_Ref,_Ptr>&) { return 0; }
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template <class _Tp, class _Ref, class _Ptr>
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inline ptrdiff_t*
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distance_type(const _Deque_iterator<_Tp,_Ref,_Ptr>&) {
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return 0;
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}
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#endif /* __STL_NON_TYPE_TMPL_PARAM_BUG */
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#endif /* __STL_CLASS_PARTIAL_SPECIALIZATION */
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// Deque base class. It has 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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#ifdef __STL_USE_STD_ALLOCATORS
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// Base class for ordinary allocators.
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template <class _Tp, class _Alloc, size_t __bufsiz, bool __is_static>
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class _Deque_alloc_base {
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public:
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typedef typename _Alloc_traits<_Tp,_Alloc>::allocator_type allocator_type;
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allocator_type get_allocator() const { return node_allocator; }
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_Deque_alloc_base(const allocator_type& __a)
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: node_allocator(__a), map_allocator(__a), _M_map(0), _M_map_size(0)
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{}
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protected:
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typedef typename _Alloc_traits<_Tp*, _Alloc>::allocator_type
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map_allocator_type;
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allocator_type node_allocator;
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map_allocator_type map_allocator;
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_Tp* _M_allocate_node() {
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return node_allocator.allocate(__deque_buf_size(__bufsiz,sizeof(_Tp)));
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}
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void _M_deallocate_node(_Tp* __p) {
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node_allocator.deallocate(__p, __deque_buf_size(__bufsiz,sizeof(_Tp)));
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}
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_Tp** _M_allocate_map(size_t __n)
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{ return map_allocator.allocate(__n); }
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void _M_deallocate_map(_Tp** __p, size_t __n)
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{ map_allocator.deallocate(__p, __n); }
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_Tp** _M_map;
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size_t _M_map_size;
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};
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// Specialization for instanceless allocators.
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template <class _Tp, class _Alloc, size_t __bufsiz>
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class _Deque_alloc_base<_Tp, _Alloc, __bufsiz, true>
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{
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public:
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typedef typename _Alloc_traits<_Tp,_Alloc>::allocator_type allocator_type;
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allocator_type get_allocator() const { return allocator_type(); }
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_Deque_alloc_base(const allocator_type&) : _M_map(0), _M_map_size(0) {}
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protected:
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typedef typename _Alloc_traits<_Tp, _Alloc>::_Alloc_type _Node_alloc_type;
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typedef typename _Alloc_traits<_Tp*, _Alloc>::_Alloc_type _Map_alloc_type;
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_Tp* _M_allocate_node()
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{ return _Node_alloc_type::allocate(__deque_buf_size(__bufsiz,
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sizeof(_Tp))); }
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void _M_deallocate_node(_Tp* __p)
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{ _Node_alloc_type::deallocate(__p, __deque_buf_size(__bufsiz,
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sizeof(_Tp))); }
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_Tp** _M_allocate_map(size_t __n)
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{ return _Map_alloc_type::allocate(__n); }
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void _M_deallocate_map(_Tp** __p, size_t __n)
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{ _Map_alloc_type::deallocate(__p, __n); }
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_Tp** _M_map;
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size_t _M_map_size;
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};
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template <class _Tp, class _Alloc, size_t __bufsiz>
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class _Deque_base
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: public _Deque_alloc_base<_Tp,_Alloc,__bufsiz,
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_Alloc_traits<_Tp, _Alloc>::_S_instanceless>
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{
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public:
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typedef _Deque_alloc_base<_Tp,_Alloc,__bufsiz,
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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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typedef _Deque_iterator<_Tp,_Tp&,_Tp*,__bufsiz> iterator;
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typedef _Deque_iterator<_Tp,const _Tp&,const _Tp&, __bufsiz> const_iterator;
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_Deque_base(const allocator_type& __a, size_t __num_elements)
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: _Base(__a), _M_start(), _M_finish()
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{ _M_initialize_map(__num_elements); }
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_Deque_base(const allocator_type& __a)
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: _Base(__a), _M_start(), _M_finish() {}
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~_Deque_base();
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protected:
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void _M_initialize_map(size_t);
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void _M_create_nodes(_Tp** __nstart, _Tp** __nfinish);
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void _M_destroy_nodes(_Tp** __nstart, _Tp** __nfinish);
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enum { _S_initial_map_size = 8 };
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protected:
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iterator _M_start;
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iterator _M_finish;
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};
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#else /* __STL_USE_STD_ALLOCATORS */
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template <class _Tp, class _Alloc, size_t __bufsiz>
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class _Deque_base {
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public:
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#ifndef __STL_NON_TYPE_TMPL_PARAM_BUG
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typedef _Deque_iterator<_Tp,_Tp&,_Tp*,__bufsiz> iterator;
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typedef _Deque_iterator<_Tp,const _Tp&,const _Tp*, __bufsiz> const_iterator;
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#else /* __STL_NON_TYPE_TMPL_PARAM_BUG */
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typedef _Deque_iterator<_Tp,_Tp&,_Tp*> iterator;
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typedef _Deque_iterator<_Tp,const _Tp&,const _Tp*> const_iterator;
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#endif /* __STL_NON_TYPE_TMPL_PARAM_BUG */
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typedef _Alloc allocator_type;
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allocator_type get_allocator() const { return allocator_type(); }
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_Deque_base(const allocator_type&, size_t __num_elements)
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: _M_map(0), _M_map_size(0), _M_start(), _M_finish() {
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_M_initialize_map(__num_elements);
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}
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_Deque_base(const allocator_type&)
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: _M_map(0), _M_map_size(0), _M_start(), _M_finish() {}
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~_Deque_base();
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protected:
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void _M_initialize_map(size_t);
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void _M_create_nodes(_Tp** __nstart, _Tp** __nfinish);
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void _M_destroy_nodes(_Tp** __nstart, _Tp** __nfinish);
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enum { _S_initial_map_size = 8 };
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protected:
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_Tp** _M_map;
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size_t _M_map_size;
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iterator _M_start;
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iterator _M_finish;
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typedef simple_alloc<_Tp, _Alloc> _Node_alloc_type;
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typedef simple_alloc<_Tp*, _Alloc> _Map_alloc_type;
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_Tp* _M_allocate_node()
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{ return _Node_alloc_type::allocate(__deque_buf_size(__bufsiz,
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sizeof(_Tp))); }
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void _M_deallocate_node(_Tp* __p)
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{ _Node_alloc_type::deallocate(__p, __deque_buf_size(__bufsiz,
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sizeof(_Tp))); }
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_Tp** _M_allocate_map(size_t __n)
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{ return _Map_alloc_type::allocate(__n); }
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void _M_deallocate_map(_Tp** __p, size_t __n)
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{ _Map_alloc_type::deallocate(__p, __n); }
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};
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#endif /* __STL_USE_STD_ALLOCATORS */
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// Non-inline member functions from _Deque_base.
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template <class _Tp, class _Alloc, size_t __bufsiz>
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_Deque_base<_Tp,_Alloc,__bufsiz>::~_Deque_base() {
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if (_M_map) {
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_M_destroy_nodes(_M_start._M_node, _M_finish._M_node + 1);
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_M_deallocate_map(_M_map, _M_map_size);
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}
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}
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template <class _Tp, class _Alloc, size_t __bufsiz>
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void
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_Deque_base<_Tp,_Alloc,__bufsiz>::_M_initialize_map(size_t __num_elements)
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{
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size_t __num_nodes =
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__num_elements / __deque_buf_size(__bufsiz, sizeof(_Tp)) + 1;
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_M_map_size = max((size_t) _S_initial_map_size, __num_nodes + 2);
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_M_map = _M_allocate_map(_M_map_size);
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_Tp** __nstart = _M_map + (_M_map_size - __num_nodes) / 2;
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_Tp** __nfinish = __nstart + __num_nodes;
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__STL_TRY {
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_M_create_nodes(__nstart, __nfinish);
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}
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__STL_UNWIND((_M_deallocate_map(_M_map, _M_map_size),
|
|
_M_map = 0, _M_map_size = 0));
|
|
_M_start._M_set_node(__nstart);
|
|
_M_finish._M_set_node(__nfinish - 1);
|
|
_M_start._M_cur = _M_start._M_first;
|
|
_M_finish._M_cur = _M_finish._M_first +
|
|
__num_elements % __deque_buf_size(__bufsiz, sizeof(_Tp));
|
|
}
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsiz>
|
|
void
|
|
_Deque_base<_Tp,_Alloc,__bufsiz>::_M_create_nodes(_Tp** __nstart,
|
|
_Tp** __nfinish)
|
|
{
|
|
_Tp** __cur;
|
|
__STL_TRY {
|
|
for (__cur = __nstart; __cur < __nfinish; ++__cur)
|
|
*__cur = _M_allocate_node();
|
|
}
|
|
__STL_UNWIND(_M_destroy_nodes(__nstart, __cur));
|
|
}
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsiz>
|
|
void
|
|
_Deque_base<_Tp,_Alloc,__bufsiz>::_M_destroy_nodes(_Tp** __nstart,
|
|
_Tp** __nfinish)
|
|
{
|
|
for (_Tp** __n = __nstart; __n < __nfinish; ++__n)
|
|
_M_deallocate_node(*__n);
|
|
}
|
|
|
|
// See __deque_buf_size(). The only reason that the default value is 0
|
|
// is as a workaround for bugs in the way that some compilers handle
|
|
// constant expressions.
|
|
template <class _Tp, class _Alloc = __STL_DEFAULT_ALLOCATOR(_Tp),
|
|
size_t __bufsiz = 0>
|
|
class deque : protected _Deque_base<_Tp, _Alloc, __bufsiz> {
|
|
typedef _Deque_base<_Tp, _Alloc, __bufsiz> _Base;
|
|
public: // Basic types
|
|
typedef _Tp value_type;
|
|
typedef value_type* pointer;
|
|
typedef const value_type* const_pointer;
|
|
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(); }
|
|
|
|
public: // Iterators
|
|
typedef typename _Base::iterator iterator;
|
|
typedef typename _Base::const_iterator const_iterator;
|
|
|
|
#ifdef __STL_CLASS_PARTIAL_SPECIALIZATION
|
|
typedef reverse_iterator<const_iterator> const_reverse_iterator;
|
|
typedef reverse_iterator<iterator> reverse_iterator;
|
|
#else /* __STL_CLASS_PARTIAL_SPECIALIZATION */
|
|
typedef reverse_iterator<const_iterator, value_type, const_reference,
|
|
difference_type>
|
|
const_reverse_iterator;
|
|
typedef reverse_iterator<iterator, value_type, reference, difference_type>
|
|
reverse_iterator;
|
|
#endif /* __STL_CLASS_PARTIAL_SPECIALIZATION */
|
|
|
|
protected: // Internal typedefs
|
|
typedef pointer* _Map_pointer;
|
|
static size_t _S_buffer_size()
|
|
{ return __deque_buf_size(__bufsiz, sizeof(_Tp)); }
|
|
|
|
protected:
|
|
#ifdef __STL_USE_NAMESPACES
|
|
using _Base::_M_initialize_map;
|
|
using _Base::_M_create_nodes;
|
|
using _Base::_M_destroy_nodes;
|
|
using _Base::_M_allocate_node;
|
|
using _Base::_M_deallocate_node;
|
|
using _Base::_M_allocate_map;
|
|
using _Base::_M_deallocate_map;
|
|
|
|
using _Base::_M_map;
|
|
using _Base::_M_map_size;
|
|
using _Base::_M_start;
|
|
using _Base::_M_finish;
|
|
#endif /* __STL_USE_NAMESPACES */
|
|
|
|
public: // Basic accessors
|
|
iterator begin() { return _M_start; }
|
|
iterator end() { return _M_finish; }
|
|
const_iterator begin() const { return _M_start; }
|
|
const_iterator end() const { return _M_finish; }
|
|
|
|
reverse_iterator rbegin() { return reverse_iterator(_M_finish); }
|
|
reverse_iterator rend() { return reverse_iterator(_M_start); }
|
|
const_reverse_iterator rbegin() const
|
|
{ return const_reverse_iterator(_M_finish); }
|
|
const_reverse_iterator rend() const
|
|
{ return const_reverse_iterator(_M_start); }
|
|
|
|
reference operator[](size_type __n)
|
|
{ return _M_start[difference_type(__n)]; }
|
|
const_reference operator[](size_type __n) const
|
|
{ return _M_start[difference_type(__n)]; }
|
|
|
|
reference front() { return *_M_start; }
|
|
reference back() {
|
|
iterator __tmp = _M_finish;
|
|
--__tmp;
|
|
return *__tmp;
|
|
}
|
|
const_reference front() const { return *_M_start; }
|
|
const_reference back() const {
|
|
const_iterator __tmp = _M_finish;
|
|
--__tmp;
|
|
return *__tmp;
|
|
}
|
|
|
|
size_type size() const { return _M_finish - _M_start;; }
|
|
size_type max_size() const { return size_type(-1); }
|
|
bool empty() const { return _M_finish == _M_start; }
|
|
|
|
public: // Constructor, destructor.
|
|
explicit deque(const allocator_type& __a = allocator_type())
|
|
: _Base(__a, 0) {}
|
|
deque(const deque& __x) : _Base(__x.get_allocator(), __x.size())
|
|
{ uninitialized_copy(__x.begin(), __x.end(), _M_start); }
|
|
deque(size_type __n, const value_type& __value,
|
|
const allocator_type& __a = allocator_type()) : _Base(__a, __n)
|
|
{ _M_fill_initialize(__value); }
|
|
explicit deque(size_type __n) : _Base(allocator_type(), __n)
|
|
{ _M_fill_initialize(value_type()); }
|
|
|
|
#ifdef __STL_MEMBER_TEMPLATES
|
|
|
|
// Check whether it's an integral type. If so, it's not an iterator.
|
|
template <class _InputIterator>
|
|
deque(_InputIterator __first, _InputIterator __last,
|
|
const allocator_type& __a = allocator_type()) : _Base(__a) {
|
|
typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
|
|
_M_initialize_dispatch(__first, __last, _Integral());
|
|
}
|
|
|
|
template <class _Integer>
|
|
void _M_initialize_dispatch(_Integer __n, _Integer __x, __true_type) {
|
|
_M_initialize_map(__n);
|
|
_M_fill_initialize(__x);
|
|
}
|
|
|
|
template <class _InputIter>
|
|
void _M_initialize_dispatch(_InputIter __first, _InputIter __last,
|
|
__false_type) {
|
|
_M_range_initialize(__first, __last, __ITERATOR_CATEGORY(__first));
|
|
}
|
|
|
|
#else /* __STL_MEMBER_TEMPLATES */
|
|
|
|
deque(const value_type* __first, const value_type* __last,
|
|
const allocator_type& __a = allocator_type())
|
|
: _Base(__a, __last - __first)
|
|
{ uninitialized_copy(__first, __last, _M_start); }
|
|
deque(const_iterator __first, const_iterator __last,
|
|
const allocator_type& __a = allocator_type())
|
|
: _Base(__a, __last - __first)
|
|
{ uninitialized_copy(__first, __last, _M_start); }
|
|
|
|
#endif /* __STL_MEMBER_TEMPLATES */
|
|
|
|
~deque() { destroy(_M_start, _M_finish); }
|
|
|
|
deque& operator= (const deque& __x) {
|
|
const size_type __len = size();
|
|
if (&__x != this) {
|
|
if (__len >= __x.size())
|
|
erase(copy(__x.begin(), __x.end(), _M_start), _M_finish);
|
|
else {
|
|
const_iterator __mid = __x.begin() + difference_type(__len);
|
|
copy(__x.begin(), __mid, _M_start);
|
|
insert(_M_finish, __mid, __x.end());
|
|
}
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
void swap(deque& __x) {
|
|
__STD::swap(_M_start, __x._M_start);
|
|
__STD::swap(_M_finish, __x._M_finish);
|
|
__STD::swap(_M_map, __x._M_map);
|
|
__STD::swap(_M_map_size, __x._M_map_size);
|
|
}
|
|
|
|
public:
|
|
// 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) {
|
|
if (__n > size()) {
|
|
fill(begin(), end(), __val);
|
|
insert(end(), __n - size(), __val);
|
|
}
|
|
else {
|
|
erase(begin() + __n, end());
|
|
fill(begin(), end(), __val);
|
|
}
|
|
}
|
|
|
|
#ifdef __STL_MEMBER_TEMPLATES
|
|
|
|
template <class _InputIterator>
|
|
void assign(_InputIterator __first, _InputIterator __last) {
|
|
typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
|
|
_M_assign_dispatch(__first, __last, _Integral());
|
|
}
|
|
|
|
private: // helper functions for assign()
|
|
|
|
template <class _Integer>
|
|
void _M_assign_dispatch(_Integer __n, _Integer __val, __true_type)
|
|
{ assign((size_type) __n, (_Tp) __val); }
|
|
|
|
template <class _InputIterator>
|
|
void _M_assign_dispatch(_InputIterator __first, _InputIterator __last,
|
|
__false_type) {
|
|
_M_assign_aux(__first, __last, __ITERATOR_CATEGORY(__first));
|
|
}
|
|
|
|
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) {
|
|
size_type __len = 0;
|
|
distance(__first, __last, __len);
|
|
if (__len > size()) {
|
|
_ForwardIterator __mid = __first;
|
|
advance(__mid, size());
|
|
copy(__first, __mid, begin());
|
|
insert(end(), __mid, __last);
|
|
}
|
|
else
|
|
erase(copy(__first, __last, begin()), end());
|
|
}
|
|
|
|
#endif /* __STL_MEMBER_TEMPLATES */
|
|
|
|
public: // push_* and pop_*
|
|
|
|
void push_back(const value_type& __t) {
|
|
if (_M_finish._M_cur != _M_finish._M_last - 1) {
|
|
construct(_M_finish._M_cur, __t);
|
|
++_M_finish._M_cur;
|
|
}
|
|
else
|
|
_M_push_back_aux(__t);
|
|
}
|
|
|
|
void push_back() {
|
|
if (_M_finish._M_cur != _M_finish._M_last - 1) {
|
|
construct(_M_finish._M_cur);
|
|
++_M_finish._M_cur;
|
|
}
|
|
else
|
|
_M_push_back_aux();
|
|
}
|
|
|
|
void push_front(const value_type& __t) {
|
|
if (_M_start._M_cur != _M_start._M_first) {
|
|
construct(_M_start._M_cur - 1, __t);
|
|
--_M_start._M_cur;
|
|
}
|
|
else
|
|
_M_push_front_aux(__t);
|
|
}
|
|
|
|
void push_front() {
|
|
if (_M_start._M_cur != _M_start._M_first) {
|
|
construct(_M_start._M_cur - 1);
|
|
--_M_start._M_cur;
|
|
}
|
|
else
|
|
_M_push_front_aux();
|
|
}
|
|
|
|
|
|
void pop_back() {
|
|
if (_M_finish._M_cur != _M_finish._M_first) {
|
|
--_M_finish._M_cur;
|
|
destroy(_M_finish._M_cur);
|
|
}
|
|
else
|
|
_M_pop_back_aux();
|
|
}
|
|
|
|
void pop_front() {
|
|
if (_M_start._M_cur != _M_start._M_last - 1) {
|
|
destroy(_M_start._M_cur);
|
|
++_M_start._M_cur;
|
|
}
|
|
else
|
|
_M_pop_front_aux();
|
|
}
|
|
|
|
public: // Insert
|
|
|
|
iterator insert(iterator position, const value_type& __x) {
|
|
if (position._M_cur == _M_start._M_cur) {
|
|
push_front(__x);
|
|
return _M_start;
|
|
}
|
|
else if (position._M_cur == _M_finish._M_cur) {
|
|
push_back(__x);
|
|
iterator __tmp = _M_finish;
|
|
--__tmp;
|
|
return __tmp;
|
|
}
|
|
else {
|
|
return _M_insert_aux(position, __x);
|
|
}
|
|
}
|
|
|
|
iterator insert(iterator __position)
|
|
{ return insert(__position, value_type()); }
|
|
|
|
void insert(iterator __pos, size_type __n, const value_type& __x);
|
|
|
|
#ifdef __STL_MEMBER_TEMPLATES
|
|
|
|
// 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 __x,
|
|
__true_type) {
|
|
insert(__pos, (size_type) __n, (value_type) __x);
|
|
}
|
|
|
|
template <class _InputIterator>
|
|
void _M_insert_dispatch(iterator __pos,
|
|
_InputIterator __first, _InputIterator __last,
|
|
__false_type) {
|
|
insert(__pos, __first, __last, __ITERATOR_CATEGORY(__first));
|
|
}
|
|
|
|
#else /* __STL_MEMBER_TEMPLATES */
|
|
|
|
void insert(iterator __pos,
|
|
const value_type* __first, const value_type* __last);
|
|
void insert(iterator __pos,
|
|
const_iterator __first, const_iterator __last);
|
|
|
|
#endif /* __STL_MEMBER_TEMPLATES */
|
|
|
|
void resize(size_type __new_size, const value_type& __x) {
|
|
const size_type __len = size();
|
|
if (__new_size < __len)
|
|
erase(_M_start + __new_size, _M_finish);
|
|
else
|
|
insert(_M_finish, __new_size - __len, __x);
|
|
}
|
|
|
|
void resize(size_type new_size) { resize(new_size, value_type()); }
|
|
|
|
public: // Erase
|
|
iterator erase(iterator __pos) {
|
|
iterator __next = __pos;
|
|
++__next;
|
|
difference_type __index = __pos - _M_start;
|
|
if (static_cast<size_type>(__index) < (size() >> 1)) {
|
|
copy_backward(_M_start, __pos, __next);
|
|
pop_front();
|
|
}
|
|
else {
|
|
copy(__next, _M_finish, __pos);
|
|
pop_back();
|
|
}
|
|
return _M_start + __index;
|
|
}
|
|
|
|
iterator erase(iterator __first, iterator __last);
|
|
void clear();
|
|
|
|
protected: // Internal construction/destruction
|
|
|
|
void _M_fill_initialize(const value_type& __value);
|
|
|
|
#ifdef __STL_MEMBER_TEMPLATES
|
|
|
|
template <class _InputIterator>
|
|
void _M_range_initialize(_InputIterator __first, _InputIterator __last,
|
|
input_iterator_tag);
|
|
|
|
template <class _ForwardIterator>
|
|
void _M_range_initialize(_ForwardIterator __first, _ForwardIterator __last,
|
|
forward_iterator_tag);
|
|
|
|
#endif /* __STL_MEMBER_TEMPLATES */
|
|
|
|
protected: // Internal push_* and pop_*
|
|
|
|
void _M_push_back_aux(const value_type&);
|
|
void _M_push_back_aux();
|
|
void _M_push_front_aux(const value_type&);
|
|
void _M_push_front_aux();
|
|
void _M_pop_back_aux();
|
|
void _M_pop_front_aux();
|
|
|
|
protected: // Internal insert functions
|
|
|
|
#ifdef __STL_MEMBER_TEMPLATES
|
|
|
|
template <class _InputIterator>
|
|
void insert(iterator __pos, _InputIterator __first, _InputIterator __last,
|
|
input_iterator_tag);
|
|
|
|
template <class _ForwardIterator>
|
|
void insert(iterator __pos,
|
|
_ForwardIterator __first, _ForwardIterator __last,
|
|
forward_iterator_tag);
|
|
|
|
#endif /* __STL_MEMBER_TEMPLATES */
|
|
|
|
iterator _M_insert_aux(iterator __pos, const value_type& __x);
|
|
iterator _M_insert_aux(iterator __pos);
|
|
void _M_insert_aux(iterator __pos, size_type __n, const value_type& __x);
|
|
|
|
#ifdef __STL_MEMBER_TEMPLATES
|
|
|
|
template <class _ForwardIterator>
|
|
void _M_insert_aux(iterator __pos,
|
|
_ForwardIterator __first, _ForwardIterator __last,
|
|
size_type __n);
|
|
|
|
#else /* __STL_MEMBER_TEMPLATES */
|
|
|
|
void _M_insert_aux(iterator __pos,
|
|
const value_type* __first, const value_type* __last,
|
|
size_type __n);
|
|
|
|
void _M_insert_aux(iterator __pos,
|
|
const_iterator __first, const_iterator __last,
|
|
size_type __n);
|
|
|
|
#endif /* __STL_MEMBER_TEMPLATES */
|
|
|
|
iterator _M_reserve_elements_at_front(size_type __n) {
|
|
size_type __vacancies = _M_start._M_cur - _M_start._M_first;
|
|
if (__n > __vacancies)
|
|
_M_new_elements_at_front(__n - __vacancies);
|
|
return _M_start - difference_type(__n);
|
|
}
|
|
|
|
iterator _M_reserve_elements_at_back(size_type __n) {
|
|
size_type __vacancies = (_M_finish._M_last - _M_finish._M_cur) - 1;
|
|
if (__n > __vacancies)
|
|
_M_new_elements_at_back(__n - __vacancies);
|
|
return _M_finish + difference_type(__n);
|
|
}
|
|
|
|
void _M_new_elements_at_front(size_type __new_elements);
|
|
void _M_new_elements_at_back(size_type __new_elements);
|
|
|
|
protected: // Allocation of _M_map and nodes
|
|
|
|
// Makes sure the _M_map has space for new nodes. Does not actually
|
|
// add the nodes. Can invalidate _M_map pointers. (And consequently,
|
|
// deque iterators.)
|
|
|
|
void _M_reserve_map_at_back (size_type __nodes_to_add = 1) {
|
|
if (__nodes_to_add + 1 > _M_map_size - (_M_finish._M_node - _M_map))
|
|
_M_reallocate_map(__nodes_to_add, false);
|
|
}
|
|
|
|
void _M_reserve_map_at_front (size_type __nodes_to_add = 1) {
|
|
if (__nodes_to_add > size_type(_M_start._M_node - _M_map))
|
|
_M_reallocate_map(__nodes_to_add, true);
|
|
}
|
|
|
|
void _M_reallocate_map(size_type __nodes_to_add, bool __add_at_front);
|
|
|
|
#ifdef __STL_NON_TYPE_TMPL_PARAM_BUG
|
|
public:
|
|
bool operator==(const deque<_Tp,_Alloc,0>& __x) const {
|
|
return size() == __x.size() && equal(begin(), end(), __x.begin());
|
|
}
|
|
bool operator!=(const deque<_Tp,_Alloc,0>& __x) const {
|
|
return size() != __x.size() || !equal(begin(), end(), __x.begin());
|
|
}
|
|
bool operator<(const deque<_Tp,_Alloc,0>& __x) const {
|
|
return lexicographical_compare(begin(), end(), __x.begin(), __x.end());
|
|
}
|
|
#endif /* __STL_NON_TYPE_TMPL_PARAM_BUG */
|
|
};
|
|
|
|
// Non-inline member functions
|
|
|
|
#ifdef __STL_MEMBER_TEMPLATES
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
template <class _InputIter>
|
|
void deque<_Tp, _Alloc, __bufsize>
|
|
::_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);
|
|
}
|
|
|
|
#endif /* __STL_MEMBER_TEMPLATES */
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
void
|
|
deque<_Tp, _Alloc, __bufsize>::insert(iterator __pos,
|
|
size_type __n, const value_type& __x)
|
|
{
|
|
if (__pos._M_cur == _M_start._M_cur) {
|
|
iterator __new_start = _M_reserve_elements_at_front(__n);
|
|
uninitialized_fill(__new_start, _M_start, __x);
|
|
_M_start = __new_start;
|
|
}
|
|
else if (__pos._M_cur == _M_finish._M_cur) {
|
|
iterator __new_finish = _M_reserve_elements_at_back(__n);
|
|
uninitialized_fill(_M_finish, __new_finish, __x);
|
|
_M_finish = __new_finish;
|
|
}
|
|
else
|
|
_M_insert_aux(__pos, __n, __x);
|
|
}
|
|
|
|
#ifndef __STL_MEMBER_TEMPLATES
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
void deque<_Tp, _Alloc, __bufsize>::insert(iterator __pos,
|
|
const value_type* __first,
|
|
const value_type* __last) {
|
|
size_type __n = __last - __first;
|
|
if (__pos._M_cur == _M_start._M_cur) {
|
|
iterator __new_start = _M_reserve_elements_at_front(__n);
|
|
__STL_TRY {
|
|
uninitialized_copy(__first, __last, __new_start);
|
|
_M_start = __new_start;
|
|
}
|
|
__STL_UNWIND(_M_destroy_nodes(__new_start._M_node, _M_start._M_node));
|
|
}
|
|
else if (__pos._M_cur == _M_finish._M_cur) {
|
|
iterator __new_finish = _M_reserve_elements_at_back(__n);
|
|
__STL_TRY {
|
|
uninitialized_copy(__first, __last, _M_finish);
|
|
_M_finish = __new_finish;
|
|
}
|
|
__STL_UNWIND(_M_destroy_nodes(_M_finish._M_node + 1,
|
|
__new_finish._M_node + 1));
|
|
}
|
|
else
|
|
_M_insert_aux(__pos, __first, __last, __n);
|
|
}
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
void deque<_Tp,_Alloc,__bufsize>::insert(iterator __pos,
|
|
const_iterator __first,
|
|
const_iterator __last)
|
|
{
|
|
size_type __n = __last - __first;
|
|
if (__pos._M_cur == _M_start._M_cur) {
|
|
iterator __new_start = _M_reserve_elements_at_front(__n);
|
|
__STL_TRY {
|
|
uninitialized_copy(__first, __last, __new_start);
|
|
_M_start = __new_start;
|
|
}
|
|
__STL_UNWIND(_M_destroy_nodes(__new_start._M_node, _M_start._M_node));
|
|
}
|
|
else if (__pos._M_cur == _M_finish._M_cur) {
|
|
iterator __new_finish = _M_reserve_elements_at_back(__n);
|
|
__STL_TRY {
|
|
uninitialized_copy(__first, __last, _M_finish);
|
|
_M_finish = __new_finish;
|
|
}
|
|
__STL_UNWIND(_M_destroy_nodes(_M_finish._M_node + 1,
|
|
__new_finish._M_node + 1));
|
|
}
|
|
else
|
|
_M_insert_aux(__pos, __first, __last, __n);
|
|
}
|
|
|
|
#endif /* __STL_MEMBER_TEMPLATES */
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
deque<_Tp,_Alloc,__bufsize>::iterator
|
|
deque<_Tp,_Alloc,__bufsize>::erase(iterator __first, iterator __last)
|
|
{
|
|
if (__first == _M_start && __last == _M_finish) {
|
|
clear();
|
|
return _M_finish;
|
|
}
|
|
else {
|
|
difference_type __n = __last - __first;
|
|
difference_type __elems_before = __first - _M_start;
|
|
if (static_cast<size_type>(__elems_before) < (size() - __n) / 2) {
|
|
copy_backward(_M_start, __first, __last);
|
|
iterator __new_start = _M_start + __n;
|
|
destroy(_M_start, __new_start);
|
|
_M_destroy_nodes(__new_start._M_node, _M_start._M_node);
|
|
_M_start = __new_start;
|
|
}
|
|
else {
|
|
copy(__last, _M_finish, __first);
|
|
iterator __new_finish = _M_finish - __n;
|
|
destroy(__new_finish, _M_finish);
|
|
_M_destroy_nodes(__new_finish._M_node + 1, _M_finish._M_node + 1);
|
|
_M_finish = __new_finish;
|
|
}
|
|
return _M_start + __elems_before;
|
|
}
|
|
}
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
void deque<_Tp,_Alloc,__bufsize>::clear()
|
|
{
|
|
for (_Map_pointer __node = _M_start._M_node + 1;
|
|
__node < _M_finish._M_node;
|
|
++__node) {
|
|
destroy(*__node, *__node + _S_buffer_size());
|
|
_M_deallocate_node(*__node);
|
|
}
|
|
|
|
if (_M_start._M_node != _M_finish._M_node) {
|
|
destroy(_M_start._M_cur, _M_start._M_last);
|
|
destroy(_M_finish._M_first, _M_finish._M_cur);
|
|
_M_deallocate_node(_M_finish._M_first);
|
|
}
|
|
else
|
|
destroy(_M_start._M_cur, _M_finish._M_cur);
|
|
|
|
_M_finish = _M_start;
|
|
}
|
|
|
|
// Precondition: _M_start and _M_finish have already been initialized,
|
|
// but none of the deque's elements have yet been constructed.
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
void
|
|
deque<_Tp,_Alloc,__bufsize>::_M_fill_initialize(const value_type& __value) {
|
|
_Map_pointer __cur;
|
|
__STL_TRY {
|
|
for (__cur = _M_start._M_node; __cur < _M_finish._M_node; ++__cur)
|
|
uninitialized_fill(*__cur, *__cur + _S_buffer_size(), __value);
|
|
uninitialized_fill(_M_finish._M_first, _M_finish._M_cur, __value);
|
|
}
|
|
__STL_UNWIND(destroy(_M_start, iterator(*__cur, __cur)));
|
|
}
|
|
|
|
#ifdef __STL_MEMBER_TEMPLATES
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
template <class _InputIterator>
|
|
void
|
|
deque<_Tp,_Alloc,__bufsize>::_M_range_initialize(_InputIterator __first,
|
|
_InputIterator __last,
|
|
input_iterator_tag)
|
|
{
|
|
_M_initialize_map(0);
|
|
for ( ; __first != __last; ++__first)
|
|
push_back(*__first);
|
|
}
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
template <class _ForwardIterator>
|
|
void
|
|
deque<_Tp,_Alloc,__bufsize>::_M_range_initialize(_ForwardIterator __first,
|
|
_ForwardIterator __last,
|
|
forward_iterator_tag)
|
|
{
|
|
size_type __n = 0;
|
|
distance(__first, __last, __n);
|
|
_M_initialize_map(__n);
|
|
|
|
_Map_pointer __cur_node;
|
|
__STL_TRY {
|
|
for (__cur_node = _M_start._M_node;
|
|
__cur_node < _M_finish._M_node;
|
|
++__cur_node) {
|
|
_ForwardIterator __mid = __first;
|
|
advance(__mid, _S_buffer_size());
|
|
uninitialized_copy(__first, __mid, *__cur_node);
|
|
__first = __mid;
|
|
}
|
|
uninitialized_copy(__first, __last, _M_finish._M_first);
|
|
}
|
|
__STL_UNWIND(destroy(_M_start, iterator(*__cur_node, __cur_node)));
|
|
}
|
|
|
|
#endif /* __STL_MEMBER_TEMPLATES */
|
|
|
|
// Called only if _M_finish._M_cur == _M_finish._M_last - 1.
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
void
|
|
deque<_Tp,_Alloc,__bufsize>::_M_push_back_aux(const value_type& __t)
|
|
{
|
|
value_type __t_copy = __t;
|
|
_M_reserve_map_at_back();
|
|
*(_M_finish._M_node + 1) = _M_allocate_node();
|
|
__STL_TRY {
|
|
construct(_M_finish._M_cur, __t_copy);
|
|
_M_finish._M_set_node(_M_finish._M_node + 1);
|
|
_M_finish._M_cur = _M_finish._M_first;
|
|
}
|
|
__STL_UNWIND(_M_deallocate_node(*(_M_finish._M_node + 1)));
|
|
}
|
|
|
|
// Called only if _M_finish._M_cur == _M_finish._M_last - 1.
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
void
|
|
deque<_Tp,_Alloc,__bufsize>::_M_push_back_aux()
|
|
{
|
|
_M_reserve_map_at_back();
|
|
*(_M_finish._M_node + 1) = _M_allocate_node();
|
|
__STL_TRY {
|
|
construct(_M_finish._M_cur);
|
|
_M_finish._M_set_node(_M_finish._M_node + 1);
|
|
_M_finish._M_cur = _M_finish._M_first;
|
|
}
|
|
__STL_UNWIND(_M_deallocate_node(*(_M_finish._M_node + 1)));
|
|
}
|
|
|
|
// Called only if _M_start._M_cur == _M_start._M_first.
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
void
|
|
deque<_Tp,_Alloc,__bufsize>::_M_push_front_aux(const value_type& __t)
|
|
{
|
|
value_type __t_copy = __t;
|
|
_M_reserve_map_at_front();
|
|
*(_M_start._M_node - 1) = _M_allocate_node();
|
|
__STL_TRY {
|
|
_M_start._M_set_node(_M_start._M_node - 1);
|
|
_M_start._M_cur = _M_start._M_last - 1;
|
|
construct(_M_start._M_cur, __t_copy);
|
|
}
|
|
__STL_UNWIND((++_M_start, _M_deallocate_node(*(_M_start._M_node - 1))));
|
|
}
|
|
|
|
// Called only if _M_start._M_cur == _M_start._M_first.
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
void
|
|
deque<_Tp,_Alloc,__bufsize>::_M_push_front_aux()
|
|
{
|
|
_M_reserve_map_at_front();
|
|
*(_M_start._M_node - 1) = _M_allocate_node();
|
|
__STL_TRY {
|
|
_M_start._M_set_node(_M_start._M_node - 1);
|
|
_M_start._M_cur = _M_start._M_last - 1;
|
|
construct(_M_start._M_cur);
|
|
}
|
|
__STL_UNWIND((++_M_start, _M_deallocate_node(*(_M_start._M_node - 1))));
|
|
}
|
|
|
|
// Called only if _M_finish._M_cur == _M_finish._M_first.
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
void
|
|
deque<_Tp,_Alloc,__bufsize>::_M_pop_back_aux()
|
|
{
|
|
_M_deallocate_node(_M_finish._M_first);
|
|
_M_finish._M_set_node(_M_finish._M_node - 1);
|
|
_M_finish._M_cur = _M_finish._M_last - 1;
|
|
destroy(_M_finish._M_cur);
|
|
}
|
|
|
|
// Called only if _M_start._M_cur == _M_start._M_last - 1. Note that
|
|
// if the deque has at least one element (a precondition for this member
|
|
// function), and if _M_start._M_cur == _M_start._M_last, then the deque
|
|
// must have at least two nodes.
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
void
|
|
deque<_Tp,_Alloc,__bufsize>::_M_pop_front_aux()
|
|
{
|
|
destroy(_M_start._M_cur);
|
|
_M_deallocate_node(_M_start._M_first);
|
|
_M_start._M_set_node(_M_start._M_node + 1);
|
|
_M_start._M_cur = _M_start._M_first;
|
|
}
|
|
|
|
#ifdef __STL_MEMBER_TEMPLATES
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
template <class _InputIterator>
|
|
void
|
|
deque<_Tp,_Alloc,__bufsize>::insert(iterator __pos,
|
|
_InputIterator __first,
|
|
_InputIterator __last,
|
|
input_iterator_tag)
|
|
{
|
|
copy(__first, __last, inserter(*this, __pos));
|
|
}
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
template <class _ForwardIterator>
|
|
void
|
|
deque<_Tp,_Alloc,__bufsize>::insert(iterator __pos,
|
|
_ForwardIterator __first,
|
|
_ForwardIterator __last,
|
|
forward_iterator_tag) {
|
|
size_type __n = 0;
|
|
distance(__first, __last, __n);
|
|
if (__pos._M_cur == _M_start._M_cur) {
|
|
iterator __new_start = _M_reserve_elements_at_front(__n);
|
|
__STL_TRY {
|
|
uninitialized_copy(__first, __last, __new_start);
|
|
_M_start = __new_start;
|
|
}
|
|
__STL_UNWIND(_M_destroy_nodes(__new_start._M_node, _M_start._M_node));
|
|
}
|
|
else if (__pos._M_cur == _M_finish._M_cur) {
|
|
iterator __new_finish = _M_reserve_elements_at_back(__n);
|
|
__STL_TRY {
|
|
uninitialized_copy(__first, __last, _M_finish);
|
|
_M_finish = __new_finish;
|
|
}
|
|
__STL_UNWIND(_M_destroy_nodes(_M_finish._M_node + 1,
|
|
__new_finish._M_node + 1));
|
|
}
|
|
else
|
|
_M_insert_aux(__pos, __first, __last, __n);
|
|
}
|
|
|
|
#endif /* __STL_MEMBER_TEMPLATES */
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
typename deque<_Tp, _Alloc, __bufsize>::iterator
|
|
deque<_Tp,_Alloc,__bufsize>::_M_insert_aux(iterator __pos,
|
|
const value_type& __x)
|
|
{
|
|
difference_type __index = __pos - _M_start;
|
|
value_type __x_copy = __x;
|
|
if (static_cast<size_type>(__index) < size() / 2) {
|
|
push_front(front());
|
|
iterator __front1 = _M_start;
|
|
++__front1;
|
|
iterator __front2 = __front1;
|
|
++__front2;
|
|
__pos = _M_start + __index;
|
|
iterator __pos1 = __pos;
|
|
++__pos1;
|
|
copy(__front2, __pos1, __front1);
|
|
}
|
|
else {
|
|
push_back(back());
|
|
iterator __back1 = _M_finish;
|
|
--__back1;
|
|
iterator __back2 = __back1;
|
|
--__back2;
|
|
__pos = _M_start + __index;
|
|
copy_backward(__pos, __back2, __back1);
|
|
}
|
|
*__pos = __x_copy;
|
|
return __pos;
|
|
}
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
typename deque<_Tp,_Alloc,__bufsize>::iterator
|
|
deque<_Tp,_Alloc,__bufsize>::_M_insert_aux(iterator __pos)
|
|
{
|
|
difference_type __index = __pos - _M_start;
|
|
if (static_cast<size_type>(__index) < size() / 2) {
|
|
push_front(front());
|
|
iterator __front1 = _M_start;
|
|
++__front1;
|
|
iterator __front2 = __front1;
|
|
++__front2;
|
|
__pos = _M_start + __index;
|
|
iterator __pos1 = __pos;
|
|
++__pos1;
|
|
copy(__front2, __pos1, __front1);
|
|
}
|
|
else {
|
|
push_back(back());
|
|
iterator __back1 = _M_finish;
|
|
--__back1;
|
|
iterator __back2 = __back1;
|
|
--__back2;
|
|
__pos = _M_start + __index;
|
|
copy_backward(__pos, __back2, __back1);
|
|
}
|
|
*__pos = value_type();
|
|
return __pos;
|
|
}
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
void
|
|
deque<_Tp,_Alloc,__bufsize>::_M_insert_aux(iterator __pos,
|
|
size_type __n,
|
|
const value_type& __x)
|
|
{
|
|
const difference_type __elems_before = __pos - _M_start;
|
|
size_type __length = size();
|
|
value_type __x_copy = __x;
|
|
if (static_cast<size_type>(__elems_before) < __length / 2) {
|
|
iterator __new_start = _M_reserve_elements_at_front(__n);
|
|
iterator __old_start = _M_start;
|
|
__pos = _M_start + __elems_before;
|
|
__STL_TRY {
|
|
if (__elems_before >= difference_type(__n)) {
|
|
iterator __start_n = _M_start + difference_type(__n);
|
|
uninitialized_copy(_M_start, __start_n, __new_start);
|
|
_M_start = __new_start;
|
|
copy(__start_n, __pos, __old_start);
|
|
fill(__pos - difference_type(__n), __pos, __x_copy);
|
|
}
|
|
else {
|
|
__uninitialized_copy_fill(_M_start, __pos, __new_start,
|
|
_M_start, __x_copy);
|
|
_M_start = __new_start;
|
|
fill(__old_start, __pos, __x_copy);
|
|
}
|
|
}
|
|
__STL_UNWIND(_M_destroy_nodes(__new_start._M_node, _M_start._M_node));
|
|
}
|
|
else {
|
|
iterator __new_finish = _M_reserve_elements_at_back(__n);
|
|
iterator __old_finish = _M_finish;
|
|
const difference_type __elems_after =
|
|
difference_type(__length) - __elems_before;
|
|
__pos = _M_finish - __elems_after;
|
|
__STL_TRY {
|
|
if (__elems_after > difference_type(__n)) {
|
|
iterator __finish_n = _M_finish - difference_type(__n);
|
|
uninitialized_copy(__finish_n, _M_finish, _M_finish);
|
|
_M_finish = __new_finish;
|
|
copy_backward(__pos, __finish_n, __old_finish);
|
|
fill(__pos, __pos + difference_type(__n), __x_copy);
|
|
}
|
|
else {
|
|
__uninitialized_fill_copy(_M_finish, __pos + difference_type(__n),
|
|
__x_copy, __pos, _M_finish);
|
|
_M_finish = __new_finish;
|
|
fill(__pos, __old_finish, __x_copy);
|
|
}
|
|
}
|
|
__STL_UNWIND(_M_destroy_nodes(_M_finish._M_node + 1,
|
|
__new_finish._M_node + 1));
|
|
}
|
|
}
|
|
|
|
#ifdef __STL_MEMBER_TEMPLATES
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
template <class _ForwardIterator>
|
|
void
|
|
deque<_Tp,_Alloc,__bufsize>::_M_insert_aux(iterator __pos,
|
|
_ForwardIterator __first,
|
|
_ForwardIterator __last,
|
|
size_type __n)
|
|
{
|
|
const difference_type __elemsbefore = __pos - _M_start;
|
|
size_type __length = size();
|
|
if (static_cast<size_type>(__elemsbefore) < __length / 2) {
|
|
iterator __new_start = _M_reserve_elements_at_front(__n);
|
|
iterator __old_start = _M_start;
|
|
__pos = _M_start + __elemsbefore;
|
|
__STL_TRY {
|
|
if (__elemsbefore >= difference_type(__n)) {
|
|
iterator __start_n = _M_start + difference_type(__n);
|
|
uninitialized_copy(_M_start, __start_n, __new_start);
|
|
_M_start = __new_start;
|
|
copy(__start_n, __pos, __old_start);
|
|
copy(__first, __last, __pos - difference_type(__n));
|
|
}
|
|
else {
|
|
_ForwardIterator __mid = __first;
|
|
advance(__mid, difference_type(__n) - __elemsbefore);
|
|
__uninitialized_copy_copy(_M_start, __pos, __first, __mid,
|
|
__new_start);
|
|
_M_start = __new_start;
|
|
copy(__mid, __last, __old_start);
|
|
}
|
|
}
|
|
__STL_UNWIND(_M_destroy_nodes(__new_start._M_node, _M_start._M_node));
|
|
}
|
|
else {
|
|
iterator __new_finish = _M_reserve_elements_at_back(__n);
|
|
iterator __old_finish = _M_finish;
|
|
const difference_type __elemsafter =
|
|
difference_type(__length) - __elemsbefore;
|
|
__pos = _M_finish - __elemsafter;
|
|
__STL_TRY {
|
|
if (__elemsafter > difference_type(__n)) {
|
|
iterator __finish_n = _M_finish - difference_type(__n);
|
|
uninitialized_copy(__finish_n, _M_finish, _M_finish);
|
|
_M_finish = __new_finish;
|
|
copy_backward(__pos, __finish_n, __old_finish);
|
|
copy(__first, __last, __pos);
|
|
}
|
|
else {
|
|
_ForwardIterator __mid = __first;
|
|
advance(__mid, __elemsafter);
|
|
__uninitialized_copy_copy(__mid, __last, __pos, _M_finish, _M_finish);
|
|
_M_finish = __new_finish;
|
|
copy(__first, __mid, __pos);
|
|
}
|
|
}
|
|
__STL_UNWIND(_M_destroy_nodes(_M_finish._M_node + 1,
|
|
__new_finish._M_node + 1));
|
|
}
|
|
}
|
|
|
|
#else /* __STL_MEMBER_TEMPLATES */
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
void
|
|
deque<_Tp,_Alloc,__bufsize>::_M_insert_aux(iterator __pos,
|
|
const value_type* __first,
|
|
const value_type* __last,
|
|
size_type __n)
|
|
{
|
|
const difference_type __elemsbefore = __pos - _M_start;
|
|
size_type __length = size();
|
|
if (__elemsbefore < __length / 2) {
|
|
iterator __new_start = _M_reserve_elements_at_front(__n);
|
|
iterator __old_start = _M_start;
|
|
__pos = _M_start + __elemsbefore;
|
|
__STL_TRY {
|
|
if (__elemsbefore >= difference_type(__n)) {
|
|
iterator __start_n = _M_start + difference_type(__n);
|
|
uninitialized_copy(_M_start, __start_n, __new_start);
|
|
_M_start = __new_start;
|
|
copy(__start_n, __pos, __old_start);
|
|
copy(__first, __last, __pos - difference_type(__n));
|
|
}
|
|
else {
|
|
const value_type* __mid =
|
|
__first + (difference_type(__n) - __elemsbefore);
|
|
__uninitialized_copy_copy(_M_start, __pos, __first, __mid,
|
|
__new_start);
|
|
_M_start = __new_start;
|
|
copy(__mid, __last, __old_start);
|
|
}
|
|
}
|
|
__STL_UNWIND(_M_destroy_nodes(__new_start._M_node, _M_start._M_node));
|
|
}
|
|
else {
|
|
iterator __new_finish = _M_reserve_elements_at_back(__n);
|
|
iterator __old_finish = _M_finish;
|
|
const difference_type __elemsafter =
|
|
difference_type(__length) - __elemsbefore;
|
|
__pos = _M_finish - __elemsafter;
|
|
__STL_TRY {
|
|
if (__elemsafter > difference_type(__n)) {
|
|
iterator __finish_n = _M_finish - difference_type(__n);
|
|
uninitialized_copy(__finish_n, _M_finish, _M_finish);
|
|
_M_finish = __new_finish;
|
|
copy_backward(__pos, __finish_n, __old_finish);
|
|
copy(__first, __last, __pos);
|
|
}
|
|
else {
|
|
const value_type* __mid = __first + __elemsafter;
|
|
__uninitialized_copy_copy(__mid, __last, __pos, _M_finish, _M_finish);
|
|
_M_finish = __new_finish;
|
|
copy(__first, __mid, __pos);
|
|
}
|
|
}
|
|
__STL_UNWIND(_M_destroy_nodes(_M_finish._M_node + 1,
|
|
__new_finish._M_node + 1));
|
|
}
|
|
}
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
void
|
|
deque<_Tp,_Alloc,__bufsize>::_M_insert_aux(iterator __pos,
|
|
const_iterator __first,
|
|
const_iterator __last,
|
|
size_type __n)
|
|
{
|
|
const difference_type __elemsbefore = __pos - _M_start;
|
|
size_type __length = size();
|
|
if (__elemsbefore < __length / 2) {
|
|
iterator __new_start = _M_reserve_elements_at_front(__n);
|
|
iterator __old_start = _M_start;
|
|
__pos = _M_start + __elemsbefore;
|
|
__STL_TRY {
|
|
if (__elemsbefore >= __n) {
|
|
iterator __start_n = _M_start + __n;
|
|
uninitialized_copy(_M_start, __start_n, __new_start);
|
|
_M_start = __new_start;
|
|
copy(__start_n, __pos, __old_start);
|
|
copy(__first, __last, __pos - difference_type(__n));
|
|
}
|
|
else {
|
|
const_iterator __mid = __first + (__n - __elemsbefore);
|
|
__uninitialized_copy_copy(_M_start, __pos, __first, __mid,
|
|
__new_start);
|
|
_M_start = __new_start;
|
|
copy(__mid, __last, __old_start);
|
|
}
|
|
}
|
|
__STL_UNWIND(_M_destroy_nodes(__new_start._M_node, _M_start._M_node));
|
|
}
|
|
else {
|
|
iterator __new_finish = _M_reserve_elements_at_back(__n);
|
|
iterator __old_finish = _M_finish;
|
|
const difference_type __elemsafter = __length - __elemsbefore;
|
|
__pos = _M_finish - __elemsafter;
|
|
__STL_TRY {
|
|
if (__elemsafter > __n) {
|
|
iterator __finish_n = _M_finish - difference_type(__n);
|
|
uninitialized_copy(__finish_n, _M_finish, _M_finish);
|
|
_M_finish = __new_finish;
|
|
copy_backward(__pos, __finish_n, __old_finish);
|
|
copy(__first, __last, __pos);
|
|
}
|
|
else {
|
|
const_iterator __mid = __first + __elemsafter;
|
|
__uninitialized_copy_copy(__mid, __last, __pos, _M_finish, _M_finish);
|
|
_M_finish = __new_finish;
|
|
copy(__first, __mid, __pos);
|
|
}
|
|
}
|
|
__STL_UNWIND(_M_destroy_nodes(_M_finish._M_node + 1,
|
|
__new_finish._M_node + 1));
|
|
}
|
|
}
|
|
|
|
#endif /* __STL_MEMBER_TEMPLATES */
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
void
|
|
deque<_Tp,_Alloc,__bufsize>::_M_new_elements_at_front(size_type __new_elems)
|
|
{
|
|
size_type __new_nodes
|
|
= (__new_elems + _S_buffer_size() - 1) / _S_buffer_size();
|
|
_M_reserve_map_at_front(__new_nodes);
|
|
size_type __i;
|
|
__STL_TRY {
|
|
for (__i = 1; __i <= __new_nodes; ++__i)
|
|
*(_M_start._M_node - __i) = _M_allocate_node();
|
|
}
|
|
# ifdef __STL_USE_EXCEPTIONS
|
|
catch(...) {
|
|
for (size_type __j = 1; __j < __i; ++__j)
|
|
_M_deallocate_node(*(_M_start._M_node - __j));
|
|
throw;
|
|
}
|
|
# endif /* __STL_USE_EXCEPTIONS */
|
|
}
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
void
|
|
deque<_Tp,_Alloc,__bufsize>::_M_new_elements_at_back(size_type __new_elems)
|
|
{
|
|
size_type __new_nodes
|
|
= (__new_elems + _S_buffer_size() - 1) / _S_buffer_size();
|
|
_M_reserve_map_at_back(__new_nodes);
|
|
size_type __i;
|
|
__STL_TRY {
|
|
for (__i = 1; __i <= __new_nodes; ++__i)
|
|
*(_M_finish._M_node + __i) = _M_allocate_node();
|
|
}
|
|
# ifdef __STL_USE_EXCEPTIONS
|
|
catch(...) {
|
|
for (size_type __j = 1; __j < __i; ++__j)
|
|
_M_deallocate_node(*(_M_finish._M_node + __j));
|
|
throw;
|
|
}
|
|
# endif /* __STL_USE_EXCEPTIONS */
|
|
}
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsize>
|
|
void
|
|
deque<_Tp,_Alloc,__bufsize>::_M_reallocate_map(size_type __nodes_to_add,
|
|
bool __add_at_front)
|
|
{
|
|
size_type __old_num_nodes = _M_finish._M_node - _M_start._M_node + 1;
|
|
size_type __new_num_nodes = __old_num_nodes + __nodes_to_add;
|
|
|
|
_Map_pointer __new_nstart;
|
|
if (_M_map_size > 2 * __new_num_nodes) {
|
|
__new_nstart = _M_map + (_M_map_size - __new_num_nodes) / 2
|
|
+ (__add_at_front ? __nodes_to_add : 0);
|
|
if (__new_nstart < _M_start._M_node)
|
|
copy(_M_start._M_node, _M_finish._M_node + 1, __new_nstart);
|
|
else
|
|
copy_backward(_M_start._M_node, _M_finish._M_node + 1,
|
|
__new_nstart + __old_num_nodes);
|
|
}
|
|
else {
|
|
size_type __new_map_size =
|
|
_M_map_size + max(_M_map_size, __nodes_to_add) + 2;
|
|
|
|
_Map_pointer __new_map = _M_allocate_map(__new_map_size);
|
|
__new_nstart = __new_map + (__new_map_size - __new_num_nodes) / 2
|
|
+ (__add_at_front ? __nodes_to_add : 0);
|
|
copy(_M_start._M_node, _M_finish._M_node + 1, __new_nstart);
|
|
_M_deallocate_map(_M_map, _M_map_size);
|
|
|
|
_M_map = __new_map;
|
|
_M_map_size = __new_map_size;
|
|
}
|
|
|
|
_M_start._M_set_node(__new_nstart);
|
|
_M_finish._M_set_node(__new_nstart + __old_num_nodes - 1);
|
|
}
|
|
|
|
|
|
// Nonmember functions.
|
|
|
|
#ifndef __STL_NON_TYPE_TMPL_PARAM_BUG
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsiz>
|
|
bool operator==(const deque<_Tp, _Alloc, __bufsiz>& __x,
|
|
const deque<_Tp, _Alloc, __bufsiz>& __y)
|
|
{
|
|
return __x.size() == __y.size() &&
|
|
equal(__x.begin(), __x.end(), __y.begin());
|
|
}
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsiz>
|
|
bool operator<(const deque<_Tp, _Alloc, __bufsiz>& __x,
|
|
const deque<_Tp, _Alloc, __bufsiz>& __y)
|
|
{
|
|
return lexicographical_compare(__x.begin(), __x.end(),
|
|
__y.begin(), __y.end());
|
|
}
|
|
|
|
#endif /* __STL_NON_TYPE_TMPL_PARAM_BUG */
|
|
|
|
#if defined(__STL_FUNCTION_TMPL_PARTIAL_ORDER) && \
|
|
!defined(__STL_NON_TYPE_TMPL_PARAM_BUG)
|
|
|
|
template <class _Tp, class _Alloc, size_t __bufsiz>
|
|
inline void
|
|
swap(deque<_Tp,_Alloc,__bufsiz>& __x, deque<_Tp,_Alloc,__bufsiz>& __y)
|
|
{
|
|
__x.swap(__y);
|
|
}
|
|
|
|
#endif
|
|
|
|
#if defined(__sgi) && !defined(__GNUC__) && (_MIPS_SIM != _MIPS_SIM_ABI32)
|
|
#pragma reset woff 1174
|
|
#pragma reset woff 1375
|
|
#endif
|
|
|
|
__STL_END_NAMESPACE
|
|
|
|
#endif /* __SGI_STL_INTERNAL_DEQUE_H */
|
|
|
|
// Local Variables:
|
|
// mode:C++
|
|
// End:
|