+// Vector implementation -*- C++ -*-
+
+// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006
+// Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING. If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// As a special exception, you may use this file as part of a free software
+// library without restriction. Specifically, if other files instantiate
+// templates or use macros or inline functions from this file, or you compile
+// this file and link it with other files to produce an executable, this
+// file does not by itself cause the resulting executable to be covered by
+// the GNU General Public License. This exception does not however
+// invalidate any other reasons why the executable file might be covered by
+// the GNU General Public License.
+
/*
*
* Copyright (c) 1994
* purpose. It is provided "as is" without express or implied warranty.
*/
-/* NOTE: This is an internal header file, included by other STL headers.
- * You should not attempt to use it directly.
+/** @file stl_vector.h
+ * This is an internal header file, included by other library headers.
+ * You should not attempt to use it directly.
*/
-#ifndef __SGI_STL_INTERNAL_VECTOR_H
-#define __SGI_STL_INTERNAL_VECTOR_H
+#ifndef _VECTOR_H
+#define _VECTOR_H 1
+#include <bits/stl_iterator_base_funcs.h>
#include <bits/functexcept.h>
+#include <bits/concept_check.h>
+
+_GLIBCXX_BEGIN_NESTED_NAMESPACE(std, _GLIBCXX_STD)
+
+ /**
+ * @if maint
+ * See bits/stl_deque.h's _Deque_base for an explanation.
+ * @endif
+ */
+ template<typename _Tp, typename _Alloc>
+ struct _Vector_base
+ {
+ typedef typename _Alloc::template rebind<_Tp>::other _Tp_alloc_type;
+
+ struct _Vector_impl
+ : public _Tp_alloc_type
+ {
+ _Tp* _M_start;
+ _Tp* _M_finish;
+ _Tp* _M_end_of_storage;
+ _Vector_impl(_Tp_alloc_type const& __a)
+ : _Tp_alloc_type(__a), _M_start(0), _M_finish(0), _M_end_of_storage(0)
+ { }
+ };
+
+ public:
+ typedef _Alloc allocator_type;
+
+ _Tp_alloc_type&
+ _M_get_Tp_allocator()
+ { return *static_cast<_Tp_alloc_type*>(&this->_M_impl); }
+
+ const _Tp_alloc_type&
+ _M_get_Tp_allocator() const
+ { return *static_cast<const _Tp_alloc_type*>(&this->_M_impl); }
+
+ allocator_type
+ get_allocator() const
+ { return allocator_type(_M_get_Tp_allocator()); }
+
+ _Vector_base(const allocator_type& __a)
+ : _M_impl(__a)
+ { }
+
+ _Vector_base(size_t __n, const allocator_type& __a)
+ : _M_impl(__a)
+ {
+ this->_M_impl._M_start = this->_M_allocate(__n);
+ this->_M_impl._M_finish = this->_M_impl._M_start;
+ this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __n;
+ }
+
+ ~_Vector_base()
+ { _M_deallocate(this->_M_impl._M_start, this->_M_impl._M_end_of_storage
+ - this->_M_impl._M_start); }
+
+ public:
+ _Vector_impl _M_impl;
+
+ _Tp*
+ _M_allocate(size_t __n)
+ { return _M_impl.allocate(__n); }
+
+ void
+ _M_deallocate(_Tp* __p, size_t __n)
+ {
+ if (__p)
+ _M_impl.deallocate(__p, __n);
+ }
+ };
+
+
+ /**
+ * @brief A standard container which offers fixed time access to
+ * individual elements in any order.
+ *
+ * @ingroup Containers
+ * @ingroup Sequences
+ *
+ * Meets the requirements of a <a href="tables.html#65">container</a>, a
+ * <a href="tables.html#66">reversible container</a>, and a
+ * <a href="tables.html#67">sequence</a>, including the
+ * <a href="tables.html#68">optional sequence requirements</a> with the
+ * %exception of @c push_front and @c pop_front.
+ *
+ * In some terminology a %vector can be described as a dynamic
+ * C-style array, it offers fast and efficient access to individual
+ * elements in any order and saves the user from worrying about
+ * memory and size allocation. Subscripting ( @c [] ) access is
+ * also provided as with C-style arrays.
+ */
+ template<typename _Tp, typename _Alloc = std::allocator<_Tp> >
+ class vector : protected _Vector_base<_Tp, _Alloc>
+ {
+ // Concept requirements.
+ typedef typename _Alloc::value_type _Alloc_value_type;
+ __glibcxx_class_requires(_Tp, _SGIAssignableConcept)
+ __glibcxx_class_requires2(_Tp, _Alloc_value_type, _SameTypeConcept)
+
+ typedef _Vector_base<_Tp, _Alloc> _Base;
+ typedef vector<_Tp, _Alloc> vector_type;
+ typedef typename _Base::_Tp_alloc_type _Tp_alloc_type;
+
+ public:
+ typedef _Tp value_type;
+ typedef typename _Tp_alloc_type::pointer pointer;
+ typedef typename _Tp_alloc_type::const_pointer const_pointer;
+ typedef typename _Tp_alloc_type::reference reference;
+ typedef typename _Tp_alloc_type::const_reference const_reference;
+ typedef __gnu_cxx::__normal_iterator<pointer, vector_type> iterator;
+ typedef __gnu_cxx::__normal_iterator<const_pointer, vector_type>
+ const_iterator;
+ typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
+ typedef std::reverse_iterator<iterator> reverse_iterator;
+ typedef size_t size_type;
+ typedef ptrdiff_t difference_type;
+ typedef _Alloc allocator_type;
+
+ protected:
+ using _Base::_M_allocate;
+ using _Base::_M_deallocate;
+ using _Base::_M_impl;
+ using _Base::_M_get_Tp_allocator;
+
+ public:
+ // [23.2.4.1] construct/copy/destroy
+ // (assign() and get_allocator() are also listed in this section)
+ /**
+ * @brief Default constructor creates no elements.
+ */
+ explicit
+ vector(const allocator_type& __a = allocator_type())
+ : _Base(__a)
+ { }
+
+ /**
+ * @brief Create a %vector with copies of an exemplar element.
+ * @param n The number of elements to initially create.
+ * @param value An element to copy.
+ *
+ * This constructor fills the %vector with @a n copies of @a value.
+ */
+ explicit
+ vector(size_type __n, const value_type& __value = value_type(),
+ const allocator_type& __a = allocator_type())
+ : _Base(__n, __a)
+ {
+ std::__uninitialized_fill_n_a(this->_M_impl._M_start, __n, __value,
+ _M_get_Tp_allocator());
+ this->_M_impl._M_finish = this->_M_impl._M_start + __n;
+ }
-#include <bits/concept_checks.h>
-
-__STL_BEGIN_NAMESPACE
-
-#if defined(__sgi) && !defined(__GNUC__) && (_MIPS_SIM != _MIPS_SIM_ABI32)
-#pragma set woff 1174
-#pragma set woff 1375
-#endif
-
-// The vector base class serves two purposes. First, its constructor
-// and destructor allocate (but don't initialize) storage. This makes
-// exception safety easier. Second, the base class encapsulates all of
-// the differences between SGI-style allocators and standard-conforming
-// allocators.
-
-#ifdef __STL_USE_STD_ALLOCATORS
-
-// Base class for ordinary allocators.
-template <class _Tp, class _Allocator, bool _IsStatic>
-class _Vector_alloc_base {
-public:
- typedef typename _Alloc_traits<_Tp, _Allocator>::allocator_type
- allocator_type;
- allocator_type get_allocator() const { return _M_data_allocator; }
-
- _Vector_alloc_base(const allocator_type& __a)
- : _M_data_allocator(__a), _M_start(0), _M_finish(0), _M_end_of_storage(0)
- {}
-
-protected:
- allocator_type _M_data_allocator;
- _Tp* _M_start;
- _Tp* _M_finish;
- _Tp* _M_end_of_storage;
-
- _Tp* _M_allocate(size_t __n)
- { return _M_data_allocator.allocate(__n); }
- void _M_deallocate(_Tp* __p, size_t __n)
- { if (__p) _M_data_allocator.deallocate(__p, __n); }
-};
-
-// Specialization for allocators that have the property that we don't
-// actually have to store an allocator object.
-template <class _Tp, class _Allocator>
-class _Vector_alloc_base<_Tp, _Allocator, true> {
-public:
- typedef typename _Alloc_traits<_Tp, _Allocator>::allocator_type
- allocator_type;
- allocator_type get_allocator() const { return allocator_type(); }
-
- _Vector_alloc_base(const allocator_type&)
- : _M_start(0), _M_finish(0), _M_end_of_storage(0)
- {}
-
-protected:
- _Tp* _M_start;
- _Tp* _M_finish;
- _Tp* _M_end_of_storage;
-
- typedef typename _Alloc_traits<_Tp, _Allocator>::_Alloc_type _Alloc_type;
- _Tp* _M_allocate(size_t __n)
- { return _Alloc_type::allocate(__n); }
- void _M_deallocate(_Tp* __p, size_t __n)
- { _Alloc_type::deallocate(__p, __n);}
-};
-
-template <class _Tp, class _Alloc>
-struct _Vector_base
- : public _Vector_alloc_base<_Tp, _Alloc,
- _Alloc_traits<_Tp, _Alloc>::_S_instanceless>
-{
- typedef _Vector_alloc_base<_Tp, _Alloc,
- _Alloc_traits<_Tp, _Alloc>::_S_instanceless>
- _Base;
- typedef typename _Base::allocator_type allocator_type;
-
- _Vector_base(const allocator_type& __a) : _Base(__a) {}
- _Vector_base(size_t __n, const allocator_type& __a) : _Base(__a) {
- _M_start = _M_allocate(__n);
- _M_finish = _M_start;
- _M_end_of_storage = _M_start + __n;
- }
-
- ~_Vector_base() { _M_deallocate(_M_start, _M_end_of_storage - _M_start); }
-};
-
-#else /* __STL_USE_STD_ALLOCATORS */
-
-template <class _Tp, class _Alloc>
-class _Vector_base {
-public:
- typedef _Alloc allocator_type;
- allocator_type get_allocator() const { return allocator_type(); }
-
- _Vector_base(const _Alloc&)
- : _M_start(0), _M_finish(0), _M_end_of_storage(0) {}
- _Vector_base(size_t __n, const _Alloc&)
- : _M_start(0), _M_finish(0), _M_end_of_storage(0)
- {
- _M_start = _M_allocate(__n);
- _M_finish = _M_start;
- _M_end_of_storage = _M_start + __n;
- }
-
- ~_Vector_base() { _M_deallocate(_M_start, _M_end_of_storage - _M_start); }
-
-protected:
- _Tp* _M_start;
- _Tp* _M_finish;
- _Tp* _M_end_of_storage;
-
- typedef simple_alloc<_Tp, _Alloc> _M_data_allocator;
- _Tp* _M_allocate(size_t __n)
- { return _M_data_allocator::allocate(__n); }
- void _M_deallocate(_Tp* __p, size_t __n)
- { _M_data_allocator::deallocate(__p, __n); }
-};
-
-#endif /* __STL_USE_STD_ALLOCATORS */
-
-template <class _Tp, class _Alloc = allocator<_Tp> >
-class vector : protected _Vector_base<_Tp, _Alloc>
-{
- // requirements:
-
- __STL_CLASS_REQUIRES(_Tp, _Assignable);
-
-private:
- typedef _Vector_base<_Tp, _Alloc> _Base;
- typedef vector<_Tp, _Alloc> vector_type;
-public:
- typedef _Tp value_type;
- typedef value_type* pointer;
- typedef const value_type* const_pointer;
- typedef __normal_iterator<pointer, vector_type> iterator;
- typedef __normal_iterator<const_pointer, vector_type> const_iterator;
- typedef value_type& reference;
- typedef const value_type& const_reference;
- typedef size_t size_type;
- typedef ptrdiff_t difference_type;
-
- typedef typename _Base::allocator_type allocator_type;
- allocator_type get_allocator() const { return _Base::get_allocator(); }
-
-#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:
-#ifdef __STL_HAS_NAMESPACES
- using _Base::_M_allocate;
- using _Base::_M_deallocate;
- using _Base::_M_start;
- using _Base::_M_finish;
- using _Base::_M_end_of_storage;
-#endif /* __STL_HAS_NAMESPACES */
-
-protected:
- void _M_insert_aux(iterator __position, const _Tp& __x);
- void _M_insert_aux(iterator __position);
-
-public:
- iterator begin() { return iterator (_M_start); }
- const_iterator begin() const
- { return const_iterator (_M_start); }
- iterator end() { return iterator (_M_finish); }
- const_iterator end() const { return const_iterator (_M_finish); }
-
- reverse_iterator rbegin()
- { return reverse_iterator(end()); }
- const_reverse_iterator rbegin() const
- { return const_reverse_iterator(end()); }
- reverse_iterator rend()
- { return reverse_iterator(begin()); }
- const_reverse_iterator rend() const
- { return const_reverse_iterator(begin()); }
-
- size_type size() const
- { return size_type(end() - begin()); }
- size_type max_size() const
- { return size_type(-1) / sizeof(_Tp); }
- size_type capacity() const
- { return size_type(const_iterator(_M_end_of_storage) - begin()); }
- bool empty() const
- { return begin() == end(); }
-
- reference operator[](size_type __n) { return *(begin() + __n); }
- const_reference operator[](size_type __n) const { return *(begin() + __n); }
-
-#ifdef __STL_THROW_RANGE_ERRORS
- void _M_range_check(size_type __n) const {
- if (__n >= this->size())
- __throw_out_of_range("vector");
- }
-
- reference at(size_type __n)
- { _M_range_check(__n); return (*this)[__n]; }
- const_reference at(size_type __n) const
- { _M_range_check(__n); return (*this)[__n]; }
-#endif /* __STL_THROW_RANGE_ERRORS */
-
- explicit vector(const allocator_type& __a = allocator_type())
- : _Base(__a) {}
-
- vector(size_type __n, const _Tp& __value,
- const allocator_type& __a = allocator_type())
- : _Base(__n, __a)
- { _M_finish = uninitialized_fill_n(_M_start, __n, __value); }
-
- explicit vector(size_type __n)
- : _Base(__n, allocator_type())
- { _M_finish = uninitialized_fill_n(_M_start, __n, _Tp()); }
-
- vector(const vector<_Tp, _Alloc>& __x)
- : _Base(__x.size(), __x.get_allocator())
- { _M_finish = uninitialized_copy(__x.begin(), __x.end(), _M_start); }
-
-#ifdef __STL_MEMBER_TEMPLATES
- // Check whether it's an integral type. If so, it's not an iterator.
- template <class _InputIterator>
- vector(_InputIterator __first, _InputIterator __last,
- const allocator_type& __a = allocator_type()) : _Base(__a) {
- typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
- _M_initialize_aux(__first, __last, _Integral());
- }
-
- template <class _Integer>
- void _M_initialize_aux(_Integer __n, _Integer __value, __true_type) {
- _M_start = _M_allocate(__n);
- _M_end_of_storage = _M_start + __n;
- _M_finish = uninitialized_fill_n(_M_start, __n, __value);
- }
-
- template <class _InputIterator>
- void _M_initialize_aux(_InputIterator __first, _InputIterator __last,
- __false_type) {
- _M_range_initialize(__first, __last, __ITERATOR_CATEGORY(__first));
- }
-
-#else
- vector(const _Tp* __first, const _Tp* __last,
- const allocator_type& __a = allocator_type())
- : _Base(__last - __first, __a)
- { _M_finish = uninitialized_copy(__first, __last, _M_start); }
-#endif /* __STL_MEMBER_TEMPLATES */
-
- ~vector() { destroy(_M_start, _M_finish); }
-
- vector<_Tp, _Alloc>& operator=(const vector<_Tp, _Alloc>& __x);
- void reserve(size_type __n) {
- if (capacity() < __n) {
- const size_type __old_size = size();
- pointer __tmp = _M_allocate_and_copy(__n, _M_start, _M_finish);
- destroy(_M_start, _M_finish);
- _M_deallocate(_M_start, _M_end_of_storage - _M_start);
- _M_start = __tmp;
- _M_finish = __tmp + __old_size;
- _M_end_of_storage = _M_start + __n;
- }
- }
-
- // assign(), a generalized assignment member function. Two
- // versions: one that takes a count, and one that takes a range.
- // The range version is a member template, so we dispatch on whether
- // or not the type is an integer.
-
- void assign(size_type __n, const _Tp& __val) { _M_fill_assign(__n, __val); }
- void _M_fill_assign(size_type __n, const _Tp& __val);
-
-#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());
- }
-
- template <class _Integer>
- void _M_assign_dispatch(_Integer __n, _Integer __val, __true_type)
- { _M_fill_assign((size_type) __n, (_Tp) __val); }
-
- template <class _InputIter>
- void _M_assign_dispatch(_InputIter __first, _InputIter __last, __false_type)
- { _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);
-
-#endif /* __STL_MEMBER_TEMPLATES */
-
- reference front() { return *begin(); }
- const_reference front() const { return *begin(); }
- reference back() { return *(end() - 1); }
- const_reference back() const { return *(end() - 1); }
-
- void push_back(const _Tp& __x) {
- if (_M_finish != _M_end_of_storage) {
- construct(_M_finish, __x);
- ++_M_finish;
- }
- else
- _M_insert_aux(end(), __x);
- }
- void push_back() {
- if (_M_finish != _M_end_of_storage) {
- construct(_M_finish);
- ++_M_finish;
- }
- else
- _M_insert_aux(end());
- }
- void swap(vector<_Tp, _Alloc>& __x) {
- __STD::swap(_M_start, __x._M_start);
- __STD::swap(_M_finish, __x._M_finish);
- __STD::swap(_M_end_of_storage, __x._M_end_of_storage);
- }
-
- iterator insert(iterator __position, const _Tp& __x) {
- size_type __n = __position - begin();
- if (_M_finish != _M_end_of_storage && __position == end()) {
- construct(_M_finish, __x);
- ++_M_finish;
- }
- else
- _M_insert_aux(iterator(__position), __x);
- return begin() + __n;
- }
- iterator insert(iterator __position) {
- size_type __n = __position - begin();
- if (_M_finish != _M_end_of_storage && __position == end()) {
- construct(_M_finish);
- ++_M_finish;
- }
- else
- _M_insert_aux(iterator(__position));
- return begin() + __n;
- }
-#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 __val,
- __true_type)
- { _M_fill_insert(__pos, (size_type) __n, (_Tp) __val); }
-
- template <class _InputIterator>
- void _M_insert_dispatch(iterator __pos,
- _InputIterator __first, _InputIterator __last,
- __false_type) {
- _M_range_insert(__pos, __first, __last, __ITERATOR_CATEGORY(__first));
- }
-#else /* __STL_MEMBER_TEMPLATES */
- void insert(iterator __position,
- const_iterator __first, const_iterator __last);
-#endif /* __STL_MEMBER_TEMPLATES */
-
- void insert (iterator __pos, size_type __n, const _Tp& __x)
- { _M_fill_insert(__pos, __n, __x); }
-
- void _M_fill_insert (iterator __pos, size_type __n, const _Tp& __x);
-
- void pop_back() {
- --_M_finish;
- destroy(_M_finish);
- }
- iterator erase(iterator __position) {
- if (__position + 1 != end())
- copy(__position + 1, end(), __position);
- --_M_finish;
- destroy(_M_finish);
- return __position;
- }
- iterator erase(iterator __first, iterator __last) {
- iterator __i(copy(__last, end(), __first));
- destroy(__i, end());
- _M_finish = _M_finish - (__last - __first);
- return __first;
- }
-
- void resize(size_type __new_size, const _Tp& __x) {
- if (__new_size < size())
- erase(begin() + __new_size, end());
- else
- insert(end(), __new_size - size(), __x);
- }
- void resize(size_type __new_size) { resize(__new_size, _Tp()); }
- void clear() { erase(begin(), end()); }
-
-protected:
-
-#ifdef __STL_MEMBER_TEMPLATES
- template <class _ForwardIterator>
- pointer _M_allocate_and_copy(size_type __n, _ForwardIterator __first,
- _ForwardIterator __last)
-{
- pointer __result = _M_allocate(__n);
- __STL_TRY {
- uninitialized_copy(__first, __last, __result);
- return __result;
- }
- __STL_UNWIND(_M_deallocate(__result, __n));
- }
-#else /* __STL_MEMBER_TEMPLATES */
- pointer _M_allocate_and_copy(size_type __n, const_iterator __first,
- const_iterator __last)
- {
- iterator __result(_M_allocate(__n));
- __STL_TRY {
- uninitialized_copy(__first, __last, __result);
- return __result;
- }
- __STL_UNWIND(_M_deallocate(__result, __n));
- }
-#endif /* __STL_MEMBER_TEMPLATES */
-
-
-#ifdef __STL_MEMBER_TEMPLATES
- template <class _InputIterator>
- void _M_range_initialize(_InputIterator __first,
- _InputIterator __last, input_iterator_tag)
- {
- for ( ; __first != __last; ++__first)
- push_back(*__first);
- }
-
- // This function is only called by the constructor.
- template <class _ForwardIterator>
- void _M_range_initialize(_ForwardIterator __first,
- _ForwardIterator __last, forward_iterator_tag)
- {
- size_type __n = 0;
- distance(__first, __last, __n);
- _M_start = _M_allocate(__n);
- _M_end_of_storage = _M_start + __n;
- _M_finish = uninitialized_copy(__first, __last, _M_start);
- }
-
- template <class _InputIterator>
- void _M_range_insert(iterator __pos,
- _InputIterator __first, _InputIterator __last,
- input_iterator_tag);
-
- template <class _ForwardIterator>
- void _M_range_insert(iterator __pos,
- _ForwardIterator __first, _ForwardIterator __last,
- forward_iterator_tag);
-
-#endif /* __STL_MEMBER_TEMPLATES */
-};
-
-template <class _Tp, class _Alloc>
-inline bool
-operator==(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
-{
- return __x.size() == __y.size() &&
- equal(__x.begin(), __x.end(), __y.begin());
-}
-
-template <class _Tp, class _Alloc>
-inline bool
-operator<(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
-{
- return lexicographical_compare(__x.begin(), __x.end(),
- __y.begin(), __y.end());
-}
-
-#ifdef __STL_FUNCTION_TMPL_PARTIAL_ORDER
-
-template <class _Tp, class _Alloc>
-inline void swap(vector<_Tp, _Alloc>& __x, vector<_Tp, _Alloc>& __y)
-{
- __x.swap(__y);
-}
-
-template <class _Tp, class _Alloc>
-inline bool
-operator!=(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) {
- return !(__x == __y);
-}
-
-template <class _Tp, class _Alloc>
-inline bool
-operator>(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) {
- return __y < __x;
-}
-
-template <class _Tp, class _Alloc>
-inline bool
-operator<=(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) {
- return !(__y < __x);
-}
-
-template <class _Tp, class _Alloc>
-inline bool
-operator>=(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) {
- return !(__x < __y);
-}
-
-#endif /* __STL_FUNCTION_TMPL_PARTIAL_ORDER */
-
-template <class _Tp, class _Alloc>
-vector<_Tp,_Alloc>&
-vector<_Tp,_Alloc>::operator=(const vector<_Tp, _Alloc>& __x)
-{
- if (&__x != this) {
- const size_type __xlen = __x.size();
- if (__xlen > capacity()) {
- pointer __tmp = _M_allocate_and_copy(__xlen, __x.begin(), __x.end());
- destroy(_M_start, _M_finish);
- _M_deallocate(_M_start, _M_end_of_storage - _M_start);
- _M_start = __tmp;
- _M_end_of_storage = _M_start + __xlen;
- }
- else if (size() >= __xlen) {
- iterator __i(copy(__x.begin(), __x.end(), begin()));
- destroy(__i, end());
- }
- else {
- copy(__x.begin(), __x.begin() + size(), _M_start);
- uninitialized_copy(__x.begin() + size(), __x.end(), _M_finish);
- }
- _M_finish = _M_start + __xlen;
- }
- return *this;
-}
-
-template <class _Tp, class _Alloc>
-void vector<_Tp, _Alloc>::_M_fill_assign(size_t __n, const value_type& __val)
-{
- if (__n > capacity()) {
- vector<_Tp, _Alloc> __tmp(__n, __val, get_allocator());
- __tmp.swap(*this);
- }
- else if (__n > size()) {
- fill(begin(), end(), __val);
- _M_finish = uninitialized_fill_n(_M_finish, __n - size(), __val);
- }
- else
- erase(fill_n(begin(), __n, __val), end());
-}
-
-#ifdef __STL_MEMBER_TEMPLATES
-
-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);
- }
-}
-
-#endif /* __STL_MEMBER_TEMPLATES */
-
-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);
+ /**
+ * @brief %Vector copy constructor.
+ * @param x A %vector of identical element and allocator types.
+ *
+ * The newly-created %vector uses a copy of the allocation
+ * object used by @a x. All the elements of @a x are copied,
+ * but any extra memory in
+ * @a x (for fast expansion) will not be copied.
+ */
+ vector(const vector& __x)
+ : _Base(__x.size(), __x._M_get_Tp_allocator())
+ { this->_M_impl._M_finish =
+ std::__uninitialized_copy_a(__x.begin(), __x.end(),
+ this->_M_impl._M_start,
+ _M_get_Tp_allocator());
}
- 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);
+
+ /**
+ * @brief Builds a %vector from a range.
+ * @param first An input iterator.
+ * @param last An input iterator.
+ *
+ * Create a %vector consisting of copies of the elements from
+ * [first,last).
+ *
+ * If the iterators are forward, bidirectional, or
+ * random-access, then this will call the elements' copy
+ * constructor N times (where N is distance(first,last)) and do
+ * no memory reallocation. But if only input iterators are
+ * used, then this will do at most 2N calls to the copy
+ * constructor, and logN memory reallocations.
+ */
+ template<typename _InputIterator>
+ vector(_InputIterator __first, _InputIterator __last,
+ const allocator_type& __a = allocator_type())
+ : _Base(__a)
+ {
+ // Check whether it's an integral type. If so, it's not an iterator.
+ typedef typename std::__is_integer<_InputIterator>::__type _Integral;
+ _M_initialize_dispatch(__first, __last, _Integral());
+ }
+
+ /**
+ * The dtor only erases the elements, and note that if the
+ * elements themselves are pointers, the pointed-to memory is
+ * not touched in any way. Managing the pointer is the user's
+ * responsibilty.
+ */
+ ~vector()
+ { std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
+ _M_get_Tp_allocator()); }
+
+ /**
+ * @brief %Vector assignment operator.
+ * @param x A %vector of identical element and allocator types.
+ *
+ * All the elements of @a x are copied, but any extra memory in
+ * @a x (for fast expansion) will not be copied. Unlike the
+ * copy constructor, the allocator object is not copied.
+ */
+ vector&
+ operator=(const vector& __x);
+
+ /**
+ * @brief Assigns a given value to a %vector.
+ * @param n Number of elements to be assigned.
+ * @param val Value to be assigned.
+ *
+ * This function fills a %vector with @a n copies of the given
+ * value. Note that the assignment completely changes the
+ * %vector and that the resulting %vector's size is the same as
+ * the number of elements assigned. Old data may be lost.
+ */
+ void
+ assign(size_type __n, const value_type& __val)
+ { _M_fill_assign(__n, __val); }
+
+ /**
+ * @brief Assigns a range to a %vector.
+ * @param first An input iterator.
+ * @param last An input iterator.
+ *
+ * This function fills a %vector with copies of the elements in the
+ * range [first,last).
+ *
+ * Note that the assignment completely changes the %vector and
+ * that the resulting %vector's size is the same as the number
+ * of elements assigned. Old data may be lost.
+ */
+ template<typename _InputIterator>
+ void
+ assign(_InputIterator __first, _InputIterator __last)
+ {
+ // Check whether it's an integral type. If so, it's not an iterator.
+ typedef typename std::__is_integer<_InputIterator>::__type _Integral;
+ _M_assign_dispatch(__first, __last, _Integral());
+ }
+
+ /// Get a copy of the memory allocation object.
+ using _Base::get_allocator;
+
+ // iterators
+ /**
+ * Returns a read/write iterator that points to the first
+ * element in the %vector. Iteration is done in ordinary
+ * element order.
+ */
+ iterator
+ begin()
+ { return iterator(this->_M_impl._M_start); }
+
+ /**
+ * Returns a read-only (constant) iterator that points to the
+ * first element in the %vector. Iteration is done in ordinary
+ * element order.
+ */
+ const_iterator
+ begin() const
+ { return const_iterator(this->_M_impl._M_start); }
+
+ /**
+ * Returns a read/write iterator that points one past the last
+ * element in the %vector. Iteration is done in ordinary
+ * element order.
+ */
+ iterator
+ end()
+ { return iterator(this->_M_impl._M_finish); }
+
+ /**
+ * Returns a read-only (constant) iterator that points one past
+ * the last element in the %vector. Iteration is done in
+ * ordinary element order.
+ */
+ const_iterator
+ end() const
+ { return const_iterator(this->_M_impl._M_finish); }
+
+ /**
+ * Returns a read/write reverse iterator that points to the
+ * last element in the %vector. Iteration is done in reverse
+ * element order.
+ */
+ reverse_iterator
+ rbegin()
+ { return reverse_iterator(end()); }
+
+ /**
+ * Returns a read-only (constant) reverse iterator that points
+ * to the last element in the %vector. Iteration is done in
+ * reverse element order.
+ */
+ const_reverse_iterator
+ rbegin() const
+ { return const_reverse_iterator(end()); }
+
+ /**
+ * Returns a read/write reverse iterator that points to one
+ * before the first element in the %vector. Iteration is done
+ * in reverse element order.
+ */
+ reverse_iterator
+ rend()
+ { return reverse_iterator(begin()); }
+
+ /**
+ * Returns a read-only (constant) reverse iterator that points
+ * to one before the first element in the %vector. Iteration
+ * is done in reverse element order.
+ */
+ const_reverse_iterator
+ rend() const
+ { return const_reverse_iterator(begin()); }
+
+ // [23.2.4.2] capacity
+ /** Returns the number of elements in the %vector. */
+ size_type
+ size() const
+ { return size_type(this->_M_impl._M_finish - this->_M_impl._M_start); }
+
+ /** Returns the size() of the largest possible %vector. */
+ size_type
+ max_size() const
+ { return _M_get_Tp_allocator().max_size(); }
+
+ /**
+ * @brief Resizes the %vector to the specified number of elements.
+ * @param new_size Number of elements the %vector should contain.
+ * @param x Data with which new elements should be populated.
+ *
+ * This function will %resize the %vector to the specified
+ * number of elements. If the number is smaller than the
+ * %vector's current size the %vector is truncated, otherwise
+ * the %vector is extended and new elements are populated with
+ * given data.
+ */
+ void
+ resize(size_type __new_size, value_type __x = value_type())
+ {
+ if (__new_size < size())
+ _M_erase_at_end(this->_M_impl._M_start + __new_size);
+ else
+ insert(end(), __new_size - size(), __x);
}
- }
- 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);
+
+ /**
+ * Returns the total number of elements that the %vector can
+ * hold before needing to allocate more memory.
+ */
+ size_type
+ capacity() const
+ { return size_type(this->_M_impl._M_end_of_storage
+ - this->_M_impl._M_start); }
+
+ /**
+ * Returns true if the %vector is empty. (Thus begin() would
+ * equal end().)
+ */
+ bool
+ empty() const
+ { return begin() == end(); }
+
+ /**
+ * @brief Attempt to preallocate enough memory for specified number of
+ * elements.
+ * @param n Number of elements required.
+ * @throw std::length_error If @a n exceeds @c max_size().
+ *
+ * This function attempts to reserve enough memory for the
+ * %vector to hold the specified number of elements. If the
+ * number requested is more than max_size(), length_error is
+ * thrown.
+ *
+ * The advantage of this function is that if optimal code is a
+ * necessity and the user can determine the number of elements
+ * that will be required, the user can reserve the memory in
+ * %advance, and thus prevent a possible reallocation of memory
+ * and copying of %vector data.
+ */
+ void
+ reserve(size_type __n);
+
+ // element access
+ /**
+ * @brief Subscript access to the data contained in the %vector.
+ * @param n The index of the element for which data should be
+ * accessed.
+ * @return Read/write reference to data.
+ *
+ * This operator allows for easy, array-style, data access.
+ * Note that data access with this operator is unchecked and
+ * out_of_range lookups are not defined. (For checked lookups
+ * see at().)
+ */
+ reference
+ operator[](size_type __n)
+ { return *(this->_M_impl._M_start + __n); }
+
+ /**
+ * @brief Subscript access to the data contained in the %vector.
+ * @param n The index of the element for which data should be
+ * accessed.
+ * @return Read-only (constant) reference to data.
+ *
+ * This operator allows for easy, array-style, data access.
+ * Note that data access with this operator is unchecked and
+ * out_of_range lookups are not defined. (For checked lookups
+ * see at().)
+ */
+ const_reference
+ operator[](size_type __n) const
+ { return *(this->_M_impl._M_start + __n); }
+
+ protected:
+ /// @if maint Safety check used only from at(). @endif
+ void
+ _M_range_check(size_type __n) const
+ {
+ if (__n >= this->size())
+ __throw_out_of_range(__N("vector::_M_range_check"));
}
- __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;
- }
- }
-}
-
-#ifdef __STL_MEMBER_TEMPLATES
-
-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);
+
+ public:
+ /**
+ * @brief Provides access to the data contained in the %vector.
+ * @param n The index of the element for which data should be
+ * accessed.
+ * @return Read/write reference to data.
+ * @throw std::out_of_range If @a n is an invalid index.
+ *
+ * This function provides for safer data access. The parameter
+ * is first checked that it is in the range of the vector. The
+ * function throws out_of_range if the check fails.
+ */
+ reference
+ at(size_type __n)
+ {
+ _M_range_check(__n);
+ return (*this)[__n];
}
- 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);
+
+ /**
+ * @brief Provides access to the data contained in the %vector.
+ * @param n The index of the element for which data should be
+ * accessed.
+ * @return Read-only (constant) reference to data.
+ * @throw std::out_of_range If @a n is an invalid index.
+ *
+ * This function provides for safer data access. The parameter
+ * is first checked that it is in the range of the vector. The
+ * function throws out_of_range if the check fails.
+ */
+ const_reference
+ at(size_type __n) const
+ {
+ _M_range_check(__n);
+ return (*this)[__n];
}
- }
- 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);
+
+ /**
+ * Returns a read/write reference to the data at the first
+ * element of the %vector.
+ */
+ reference
+ front()
+ { return *begin(); }
+
+ /**
+ * Returns a read-only (constant) reference to the data at the first
+ * element of the %vector.
+ */
+ const_reference
+ front() const
+ { return *begin(); }
+
+ /**
+ * Returns a read/write reference to the data at the last
+ * element of the %vector.
+ */
+ reference
+ back()
+ { return *(end() - 1); }
+
+ /**
+ * Returns a read-only (constant) reference to the data at the
+ * last element of the %vector.
+ */
+ const_reference
+ back() const
+ { return *(end() - 1); }
+
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // DR 464. Suggestion for new member functions in standard containers.
+ // data access
+ /**
+ * Returns a pointer such that [data(), data() + size()) is a valid
+ * range. For a non-empty %vector, data() == &front().
+ */
+ pointer
+ data()
+ { return pointer(this->_M_impl._M_start); }
+
+ const_pointer
+ data() const
+ { return const_pointer(this->_M_impl._M_start); }
+
+ // [23.2.4.3] modifiers
+ /**
+ * @brief Add data to the end of the %vector.
+ * @param x Data to be added.
+ *
+ * This is a typical stack operation. The function creates an
+ * element at the end of the %vector and assigns the given data
+ * to it. Due to the nature of a %vector this operation can be
+ * done in constant time if the %vector has preallocated space
+ * available.
+ */
+ void
+ push_back(const value_type& __x)
+ {
+ if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage)
+ {
+ this->_M_impl.construct(this->_M_impl._M_finish, __x);
+ ++this->_M_impl._M_finish;
+ }
+ else
+ _M_insert_aux(end(), __x);
}
- __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;
- }
- }
-}
-
-#else /* __STL_MEMBER_TEMPLATES */
-
-template <class _Tp, class _Alloc>
-void
-vector<_Tp, _Alloc>::insert(iterator __position,
- const_iterator __first,
- const_iterator __last)
-{
- 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 = _M_finish - __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);
+
+ /**
+ * @brief Removes last element.
+ *
+ * This is a typical stack operation. It shrinks the %vector by one.
+ *
+ * Note that no data is returned, and if the last element's
+ * data is needed, it should be retrieved before pop_back() is
+ * called.
+ */
+ void
+ pop_back()
+ {
+ --this->_M_impl._M_finish;
+ this->_M_impl.destroy(this->_M_impl._M_finish);
}
- else {
- uninitialized_copy(__first + __elems_after, __last, _M_finish);
- _M_finish += __n - __elems_after;
- uninitialized_copy(__position, __old_finish, _M_finish);
- _M_finish += __elems_after;
- copy(__first, __first + __elems_after, __position);
+
+ /**
+ * @brief Inserts given value into %vector before specified iterator.
+ * @param position An iterator into the %vector.
+ * @param x Data to be inserted.
+ * @return An iterator that points to the inserted data.
+ *
+ * This function will insert a copy of the given value before
+ * the specified location. Note that this kind of operation
+ * could be expensive for a %vector and if it is frequently
+ * used the user should consider using std::list.
+ */
+ iterator
+ insert(iterator __position, const value_type& __x);
+
+ /**
+ * @brief Inserts a number of copies of given data into the %vector.
+ * @param position An iterator into the %vector.
+ * @param n Number of elements to be inserted.
+ * @param x Data to be inserted.
+ *
+ * This function will insert a specified number of copies of
+ * the given data before the location specified by @a position.
+ *
+ * Note that this kind of operation could be expensive for a
+ * %vector and if it is frequently used the user should
+ * consider using std::list.
+ */
+ void
+ insert(iterator __position, size_type __n, const value_type& __x)
+ { _M_fill_insert(__position, __n, __x); }
+
+ /**
+ * @brief Inserts a range into the %vector.
+ * @param position An iterator into the %vector.
+ * @param first An input iterator.
+ * @param last An input iterator.
+ *
+ * This function will insert copies of the data in the range
+ * [first,last) into the %vector before the location specified
+ * by @a pos.
+ *
+ * Note that this kind of operation could be expensive for a
+ * %vector and if it is frequently used the user should
+ * consider using std::list.
+ */
+ template<typename _InputIterator>
+ void
+ insert(iterator __position, _InputIterator __first,
+ _InputIterator __last)
+ {
+ // Check whether it's an integral type. If so, it's not an iterator.
+ typedef typename std::__is_integer<_InputIterator>::__type _Integral;
+ _M_insert_dispatch(__position, __first, __last, _Integral());
+ }
+
+ /**
+ * @brief Remove element at given position.
+ * @param position Iterator pointing to element to be erased.
+ * @return An iterator pointing to the next element (or end()).
+ *
+ * This function will erase the element at the given position and thus
+ * shorten the %vector by one.
+ *
+ * Note This operation could be expensive and if it is
+ * frequently used the user should consider using std::list.
+ * The user is also cautioned that this function only erases
+ * the element, and that if the element is itself a pointer,
+ * the pointed-to memory is not touched in any way. Managing
+ * the pointer is the user's responsibilty.
+ */
+ iterator
+ erase(iterator __position);
+
+ /**
+ * @brief Remove a range of elements.
+ * @param first Iterator pointing to the first element to be erased.
+ * @param last Iterator pointing to one past the last element to be
+ * erased.
+ * @return An iterator pointing to the element pointed to by @a last
+ * prior to erasing (or end()).
+ *
+ * This function will erase the elements in the range [first,last) and
+ * shorten the %vector accordingly.
+ *
+ * Note This operation could be expensive and if it is
+ * frequently used the user should consider using std::list.
+ * The user is also cautioned that this function only erases
+ * the elements, and that if the elements themselves are
+ * pointers, the pointed-to memory is not touched in any way.
+ * Managing the pointer is the user's responsibilty.
+ */
+ iterator
+ erase(iterator __first, iterator __last);
+
+ /**
+ * @brief Swaps data with another %vector.
+ * @param x A %vector of the same element and allocator types.
+ *
+ * This exchanges the elements between two vectors in constant time.
+ * (Three pointers, so it should be quite fast.)
+ * Note that the global std::swap() function is specialized such that
+ * std::swap(v1,v2) will feed to this function.
+ */
+ void
+ swap(vector& __x)
+ {
+ std::swap(this->_M_impl._M_start, __x._M_impl._M_start);
+ std::swap(this->_M_impl._M_finish, __x._M_impl._M_finish);
+ std::swap(this->_M_impl._M_end_of_storage,
+ __x._M_impl._M_end_of_storage);
+
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 431. Swapping containers with unequal allocators.
+ std::__alloc_swap<_Tp_alloc_type>::_S_do_it(_M_get_Tp_allocator(),
+ __x._M_get_Tp_allocator());
}
- }
- 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(_M_start, __position, __new_start);
- __new_finish = uninitialized_copy(__first, __last, __new_finish);
- __new_finish
- = uninitialized_copy(__position, _M_finish, __new_finish);
+
+ /**
+ * Erases all the elements. Note that this function only erases the
+ * elements, and that if the elements themselves are pointers, the
+ * pointed-to memory is not touched in any way. Managing the pointer is
+ * the user's responsibilty.
+ */
+ void
+ clear()
+ { _M_erase_at_end(this->_M_impl._M_start); }
+
+ protected:
+ /**
+ * @if maint
+ * Memory expansion handler. Uses the member allocation function to
+ * obtain @a n bytes of memory, and then copies [first,last) into it.
+ * @endif
+ */
+ template<typename _ForwardIterator>
+ pointer
+ _M_allocate_and_copy(size_type __n,
+ _ForwardIterator __first, _ForwardIterator __last)
+ {
+ pointer __result = this->_M_allocate(__n);
+ try
+ {
+ std::__uninitialized_copy_a(__first, __last, __result,
+ _M_get_Tp_allocator());
+ return __result;
+ }
+ catch(...)
+ {
+ _M_deallocate(__result, __n);
+ __throw_exception_again;
+ }
+ }
+
+
+ // Internal constructor functions follow.
+
+ // Called by the range constructor to implement [23.1.1]/9
+ template<typename _Integer>
+ void
+ _M_initialize_dispatch(_Integer __n, _Integer __value, __true_type)
+ {
+ this->_M_impl._M_start = _M_allocate(__n);
+ this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __n;
+ std::__uninitialized_fill_n_a(this->_M_impl._M_start, __n, __value,
+ _M_get_Tp_allocator());
+ this->_M_impl._M_finish = this->_M_impl._M_end_of_storage;
+ }
+
+ // Called by the range constructor to implement [23.1.1]/9
+ template<typename _InputIterator>
+ void
+ _M_initialize_dispatch(_InputIterator __first, _InputIterator __last,
+ __false_type)
+ {
+ typedef typename std::iterator_traits<_InputIterator>::
+ iterator_category _IterCategory;
+ _M_range_initialize(__first, __last, _IterCategory());
+ }
+
+ // Called by the second initialize_dispatch above
+ template<typename _InputIterator>
+ void
+ _M_range_initialize(_InputIterator __first,
+ _InputIterator __last, std::input_iterator_tag)
+ {
+ for (; __first != __last; ++__first)
+ push_back(*__first);
+ }
+
+ // Called by the second initialize_dispatch above
+ template<typename _ForwardIterator>
+ void
+ _M_range_initialize(_ForwardIterator __first,
+ _ForwardIterator __last, std::forward_iterator_tag)
+ {
+ const size_type __n = std::distance(__first, __last);
+ this->_M_impl._M_start = this->_M_allocate(__n);
+ this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __n;
+ this->_M_impl._M_finish =
+ std::__uninitialized_copy_a(__first, __last,
+ this->_M_impl._M_start,
+ _M_get_Tp_allocator());
+ }
+
+
+ // Internal assign functions follow. The *_aux functions do the actual
+ // assignment work for the range versions.
+
+ // Called by the range assign to implement [23.1.1]/9
+ template<typename _Integer>
+ void
+ _M_assign_dispatch(_Integer __n, _Integer __val, __true_type)
+ {
+ _M_fill_assign(static_cast<size_type>(__n),
+ static_cast<value_type>(__val));
+ }
+
+ // Called by the range assign to implement [23.1.1]/9
+ template<typename _InputIterator>
+ void
+ _M_assign_dispatch(_InputIterator __first, _InputIterator __last,
+ __false_type)
+ {
+ typedef typename std::iterator_traits<_InputIterator>::
+ iterator_category _IterCategory;
+ _M_assign_aux(__first, __last, _IterCategory());
+ }
+
+ // Called by the second assign_dispatch above
+ template<typename _InputIterator>
+ void
+ _M_assign_aux(_InputIterator __first, _InputIterator __last,
+ std::input_iterator_tag);
+
+ // Called by the second assign_dispatch above
+ template<typename _ForwardIterator>
+ void
+ _M_assign_aux(_ForwardIterator __first, _ForwardIterator __last,
+ std::forward_iterator_tag);
+
+ // Called by assign(n,t), and the range assign when it turns out
+ // to be the same thing.
+ void
+ _M_fill_assign(size_type __n, const value_type& __val);
+
+
+ // Internal insert functions follow.
+
+ // Called by the range insert to implement [23.1.1]/9
+ template<typename _Integer>
+ void
+ _M_insert_dispatch(iterator __pos, _Integer __n, _Integer __val,
+ __true_type)
+ {
+ _M_fill_insert(__pos, static_cast<size_type>(__n),
+ static_cast<value_type>(__val));
+ }
+
+ // Called by the range insert to implement [23.1.1]/9
+ template<typename _InputIterator>
+ void
+ _M_insert_dispatch(iterator __pos, _InputIterator __first,
+ _InputIterator __last, __false_type)
+ {
+ typedef typename std::iterator_traits<_InputIterator>::
+ iterator_category _IterCategory;
+ _M_range_insert(__pos, __first, __last, _IterCategory());
+ }
+
+ // Called by the second insert_dispatch above
+ template<typename _InputIterator>
+ void
+ _M_range_insert(iterator __pos, _InputIterator __first,
+ _InputIterator __last, std::input_iterator_tag);
+
+ // Called by the second insert_dispatch above
+ template<typename _ForwardIterator>
+ void
+ _M_range_insert(iterator __pos, _ForwardIterator __first,
+ _ForwardIterator __last, std::forward_iterator_tag);
+
+ // Called by insert(p,n,x), and the range insert when it turns out to be
+ // the same thing.
+ void
+ _M_fill_insert(iterator __pos, size_type __n, const value_type& __x);
+
+ // Called by insert(p,x)
+ void
+ _M_insert_aux(iterator __position, const value_type& __x);
+
+ // Internal erase functions follow.
+
+ // Called by erase(q1,q2), clear(), resize(), _M_fill_assign,
+ // _M_assign_aux.
+ void
+ _M_erase_at_end(pointer __pos)
+ {
+ std::_Destroy(__pos, this->_M_impl._M_finish, _M_get_Tp_allocator());
+ this->_M_impl._M_finish = __pos;
}
- __STL_UNWIND((destroy(__new_start,__new_finish),
- _M_deallocate(__new_start,__len)));
- destroy(_M_start, _M_finish);
- _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;
- }
- }
-}
-
-#endif /* __STL_MEMBER_TEMPLATES */
-
-#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_VECTOR_H */
-
-// Local Variables:
-// mode:C++
-// End:
+ };
+
+
+ /**
+ * @brief Vector equality comparison.
+ * @param x A %vector.
+ * @param y A %vector of the same type as @a x.
+ * @return True iff the size and elements of the vectors are equal.
+ *
+ * This is an equivalence relation. It is linear in the size of the
+ * vectors. Vectors are considered equivalent if their sizes are equal,
+ * and if corresponding elements compare equal.
+ */
+ template<typename _Tp, typename _Alloc>
+ inline bool
+ operator==(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
+ { return (__x.size() == __y.size()
+ && std::equal(__x.begin(), __x.end(), __y.begin())); }
+
+ /**
+ * @brief Vector ordering relation.
+ * @param x A %vector.
+ * @param y A %vector of the same type as @a x.
+ * @return True iff @a x is lexicographically less than @a y.
+ *
+ * This is a total ordering relation. It is linear in the size of the
+ * vectors. The elements must be comparable with @c <.
+ *
+ * See std::lexicographical_compare() for how the determination is made.
+ */
+ template<typename _Tp, typename _Alloc>
+ inline bool
+ operator<(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
+ { return std::lexicographical_compare(__x.begin(), __x.end(),
+ __y.begin(), __y.end()); }
+
+ /// Based on operator==
+ template<typename _Tp, typename _Alloc>
+ inline bool
+ operator!=(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
+ { return !(__x == __y); }
+
+ /// Based on operator<
+ template<typename _Tp, typename _Alloc>
+ inline bool
+ operator>(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
+ { return __y < __x; }
+
+ /// Based on operator<
+ template<typename _Tp, typename _Alloc>
+ inline bool
+ operator<=(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
+ { return !(__y < __x); }
+
+ /// Based on operator<
+ template<typename _Tp, typename _Alloc>
+ inline bool
+ operator>=(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
+ { return !(__x < __y); }
+
+ /// See std::vector::swap().
+ template<typename _Tp, typename _Alloc>
+ inline void
+ swap(vector<_Tp, _Alloc>& __x, vector<_Tp, _Alloc>& __y)
+ { __x.swap(__y); }
+
+_GLIBCXX_END_NESTED_NAMESPACE
+
+#endif /* _VECTOR_H */
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