993 lines
34 KiB
C++
993 lines
34 KiB
C++
// Vector implementation -*- C++ -*-
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// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006
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// Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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// USA.
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// As a special exception, you may use this file as part of a free software
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// library without restriction. Specifically, if other files instantiate
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// templates or use macros or inline functions from this file, or you compile
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// this file and link it with other files to produce an executable, this
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// file does not by itself cause the resulting executable to be covered by
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// the GNU General Public License. This exception does not however
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// invalidate any other reasons why the executable file might be covered by
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// the GNU General Public License.
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/*
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*
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* Copyright (c) 1994
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* Hewlett-Packard Company
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Hewlett-Packard Company makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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*
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* Copyright (c) 1996
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* Silicon Graphics Computer Systems, Inc.
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Silicon Graphics makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*/
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/** @file stl_vector.h
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* This is an internal header file, included by other library headers.
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* You should not attempt to use it directly.
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*/
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#ifndef _VECTOR_H
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#define _VECTOR_H 1
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#include <bits/stl_iterator_base_funcs.h>
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#include <bits/functexcept.h>
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#include <bits/concept_check.h>
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_GLIBCXX_BEGIN_NESTED_NAMESPACE(std, _GLIBCXX_STD)
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/**
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* @if maint
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* See bits/stl_deque.h's _Deque_base for an explanation.
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* @endif
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*/
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template<typename _Tp, typename _Alloc>
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struct _Vector_base
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{
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typedef typename _Alloc::template rebind<_Tp>::other _Tp_alloc_type;
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struct _Vector_impl
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: public _Tp_alloc_type
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{
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_Tp* _M_start;
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_Tp* _M_finish;
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_Tp* _M_end_of_storage;
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_Vector_impl(_Tp_alloc_type const& __a)
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: _Tp_alloc_type(__a), _M_start(0), _M_finish(0), _M_end_of_storage(0)
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{ }
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};
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public:
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typedef _Alloc allocator_type;
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_Tp_alloc_type&
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_M_get_Tp_allocator()
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{ return *static_cast<_Tp_alloc_type*>(&this->_M_impl); }
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const _Tp_alloc_type&
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_M_get_Tp_allocator() const
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{ return *static_cast<const _Tp_alloc_type*>(&this->_M_impl); }
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allocator_type
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get_allocator() const
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{ return allocator_type(_M_get_Tp_allocator()); }
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_Vector_base(const allocator_type& __a)
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: _M_impl(__a)
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{ }
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_Vector_base(size_t __n, const allocator_type& __a)
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: _M_impl(__a)
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{
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this->_M_impl._M_start = this->_M_allocate(__n);
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this->_M_impl._M_finish = this->_M_impl._M_start;
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this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __n;
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}
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~_Vector_base()
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{ _M_deallocate(this->_M_impl._M_start, this->_M_impl._M_end_of_storage
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- this->_M_impl._M_start); }
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public:
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_Vector_impl _M_impl;
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_Tp*
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_M_allocate(size_t __n)
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{ return _M_impl.allocate(__n); }
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void
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_M_deallocate(_Tp* __p, size_t __n)
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{
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if (__p)
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_M_impl.deallocate(__p, __n);
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}
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};
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/**
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* @brief A standard container which offers fixed time access to
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* individual elements in any order.
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*
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* @ingroup Containers
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* @ingroup Sequences
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*
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* Meets the requirements of a <a href="tables.html#65">container</a>, a
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* <a href="tables.html#66">reversible container</a>, and a
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* <a href="tables.html#67">sequence</a>, including the
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* <a href="tables.html#68">optional sequence requirements</a> with the
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* %exception of @c push_front and @c pop_front.
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*
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* In some terminology a %vector can be described as a dynamic
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* C-style array, it offers fast and efficient access to individual
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* elements in any order and saves the user from worrying about
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* memory and size allocation. Subscripting ( @c [] ) access is
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* also provided as with C-style arrays.
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*/
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template<typename _Tp, typename _Alloc = std::allocator<_Tp> >
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class vector : protected _Vector_base<_Tp, _Alloc>
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{
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// Concept requirements.
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typedef typename _Alloc::value_type _Alloc_value_type;
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__glibcxx_class_requires(_Tp, _SGIAssignableConcept)
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__glibcxx_class_requires2(_Tp, _Alloc_value_type, _SameTypeConcept)
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typedef _Vector_base<_Tp, _Alloc> _Base;
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typedef vector<_Tp, _Alloc> vector_type;
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typedef typename _Base::_Tp_alloc_type _Tp_alloc_type;
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public:
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typedef _Tp value_type;
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typedef typename _Tp_alloc_type::pointer pointer;
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typedef typename _Tp_alloc_type::const_pointer const_pointer;
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typedef typename _Tp_alloc_type::reference reference;
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typedef typename _Tp_alloc_type::const_reference const_reference;
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typedef __gnu_cxx::__normal_iterator<pointer, vector_type> iterator;
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typedef __gnu_cxx::__normal_iterator<const_pointer, vector_type>
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const_iterator;
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typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
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typedef std::reverse_iterator<iterator> reverse_iterator;
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typedef size_t size_type;
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typedef ptrdiff_t difference_type;
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typedef _Alloc allocator_type;
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protected:
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using _Base::_M_allocate;
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using _Base::_M_deallocate;
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using _Base::_M_impl;
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using _Base::_M_get_Tp_allocator;
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public:
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// [23.2.4.1] construct/copy/destroy
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// (assign() and get_allocator() are also listed in this section)
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/**
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* @brief Default constructor creates no elements.
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*/
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explicit
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vector(const allocator_type& __a = allocator_type())
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: _Base(__a)
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{ }
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/**
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* @brief Create a %vector with copies of an exemplar element.
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* @param n The number of elements to initially create.
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* @param value An element to copy.
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*
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* This constructor fills the %vector with @a n copies of @a value.
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*/
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explicit
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vector(size_type __n, const value_type& __value = value_type(),
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const allocator_type& __a = allocator_type())
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: _Base(__n, __a)
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{
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std::__uninitialized_fill_n_a(this->_M_impl._M_start, __n, __value,
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_M_get_Tp_allocator());
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this->_M_impl._M_finish = this->_M_impl._M_start + __n;
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}
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/**
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* @brief %Vector copy constructor.
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* @param x A %vector of identical element and allocator types.
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*
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* The newly-created %vector uses a copy of the allocation
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* object used by @a x. All the elements of @a x are copied,
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* but any extra memory in
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* @a x (for fast expansion) will not be copied.
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*/
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vector(const vector& __x)
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: _Base(__x.size(), __x._M_get_Tp_allocator())
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{ this->_M_impl._M_finish =
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std::__uninitialized_copy_a(__x.begin(), __x.end(),
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this->_M_impl._M_start,
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_M_get_Tp_allocator());
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}
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/**
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* @brief Builds a %vector from a range.
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* @param first An input iterator.
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* @param last An input iterator.
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*
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* Create a %vector consisting of copies of the elements from
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* [first,last).
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*
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* If the iterators are forward, bidirectional, or
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* random-access, then this will call the elements' copy
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* constructor N times (where N is distance(first,last)) and do
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* no memory reallocation. But if only input iterators are
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* used, then this will do at most 2N calls to the copy
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* constructor, and logN memory reallocations.
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*/
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template<typename _InputIterator>
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vector(_InputIterator __first, _InputIterator __last,
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const allocator_type& __a = allocator_type())
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: _Base(__a)
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{
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// Check whether it's an integral type. If so, it's not an iterator.
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typedef typename std::__is_integer<_InputIterator>::__type _Integral;
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_M_initialize_dispatch(__first, __last, _Integral());
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}
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/**
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* The dtor only erases the elements, and note that if the
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* elements themselves are pointers, the pointed-to memory is
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* not touched in any way. Managing the pointer is the user's
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* responsibilty.
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*/
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~vector()
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{ std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
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_M_get_Tp_allocator()); }
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/**
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* @brief %Vector assignment operator.
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* @param x A %vector of identical element and allocator types.
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*
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* All the elements of @a x are copied, but any extra memory in
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* @a x (for fast expansion) will not be copied. Unlike the
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* copy constructor, the allocator object is not copied.
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*/
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vector&
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operator=(const vector& __x);
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/**
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* @brief Assigns a given value to a %vector.
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* @param n Number of elements to be assigned.
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* @param val Value to be assigned.
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*
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* This function fills a %vector with @a n copies of the given
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* value. Note that the assignment completely changes the
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* %vector and that the resulting %vector's size is the same as
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* the number of elements assigned. Old data may be lost.
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*/
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void
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assign(size_type __n, const value_type& __val)
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{ _M_fill_assign(__n, __val); }
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/**
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* @brief Assigns a range to a %vector.
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* @param first An input iterator.
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* @param last An input iterator.
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*
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* This function fills a %vector with copies of the elements in the
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* range [first,last).
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*
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* Note that the assignment completely changes the %vector and
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* that the resulting %vector's size is the same as the number
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* of elements assigned. Old data may be lost.
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*/
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template<typename _InputIterator>
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void
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assign(_InputIterator __first, _InputIterator __last)
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{
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// Check whether it's an integral type. If so, it's not an iterator.
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typedef typename std::__is_integer<_InputIterator>::__type _Integral;
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_M_assign_dispatch(__first, __last, _Integral());
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}
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/// Get a copy of the memory allocation object.
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using _Base::get_allocator;
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// iterators
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/**
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* Returns a read/write iterator that points to the first
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* element in the %vector. Iteration is done in ordinary
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* element order.
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*/
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iterator
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begin()
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{ return iterator(this->_M_impl._M_start); }
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/**
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* Returns a read-only (constant) iterator that points to the
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* first element in the %vector. Iteration is done in ordinary
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* element order.
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*/
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const_iterator
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begin() const
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{ return const_iterator(this->_M_impl._M_start); }
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/**
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* Returns a read/write iterator that points one past the last
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* element in the %vector. Iteration is done in ordinary
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* element order.
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*/
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iterator
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end()
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{ return iterator(this->_M_impl._M_finish); }
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/**
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* Returns a read-only (constant) iterator that points one past
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* the last element in the %vector. Iteration is done in
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* ordinary element order.
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*/
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const_iterator
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end() const
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{ return const_iterator(this->_M_impl._M_finish); }
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/**
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* Returns a read/write reverse iterator that points to the
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* last element in the %vector. Iteration is done in reverse
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* element order.
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*/
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reverse_iterator
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rbegin()
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{ return reverse_iterator(end()); }
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/**
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* Returns a read-only (constant) reverse iterator that points
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* to the last element in the %vector. Iteration is done in
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* reverse element order.
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*/
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const_reverse_iterator
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rbegin() const
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{ return const_reverse_iterator(end()); }
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/**
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* Returns a read/write reverse iterator that points to one
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* before the first element in the %vector. Iteration is done
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* in reverse element order.
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*/
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reverse_iterator
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rend()
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{ return reverse_iterator(begin()); }
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/**
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* Returns a read-only (constant) reverse iterator that points
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* to one before the first element in the %vector. Iteration
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* is done in reverse element order.
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*/
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const_reverse_iterator
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rend() const
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{ return const_reverse_iterator(begin()); }
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// [23.2.4.2] capacity
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/** Returns the number of elements in the %vector. */
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size_type
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size() const
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{ return size_type(this->_M_impl._M_finish - this->_M_impl._M_start); }
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/** Returns the size() of the largest possible %vector. */
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size_type
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max_size() const
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{ return _M_get_Tp_allocator().max_size(); }
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/**
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* @brief Resizes the %vector to the specified number of elements.
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* @param new_size Number of elements the %vector should contain.
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* @param x Data with which new elements should be populated.
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*
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* This function will %resize the %vector to the specified
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* number of elements. If the number is smaller than the
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* %vector's current size the %vector is truncated, otherwise
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* the %vector is extended and new elements are populated with
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* given data.
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*/
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void
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resize(size_type __new_size, value_type __x = value_type())
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{
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if (__new_size < size())
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_M_erase_at_end(this->_M_impl._M_start + __new_size);
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else
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insert(end(), __new_size - size(), __x);
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}
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/**
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* Returns the total number of elements that the %vector can
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* hold before needing to allocate more memory.
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*/
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size_type
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capacity() const
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{ return size_type(this->_M_impl._M_end_of_storage
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- this->_M_impl._M_start); }
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/**
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* Returns true if the %vector is empty. (Thus begin() would
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* equal end().)
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*/
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bool
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empty() const
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{ return begin() == end(); }
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/**
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* @brief Attempt to preallocate enough memory for specified number of
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* elements.
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* @param n Number of elements required.
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* @throw std::length_error If @a n exceeds @c max_size().
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*
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* This function attempts to reserve enough memory for the
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* %vector to hold the specified number of elements. If the
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* number requested is more than max_size(), length_error is
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* thrown.
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*
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* The advantage of this function is that if optimal code is a
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* necessity and the user can determine the number of elements
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* that will be required, the user can reserve the memory in
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* %advance, and thus prevent a possible reallocation of memory
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* and copying of %vector data.
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*/
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void
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reserve(size_type __n);
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// element access
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/**
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* @brief Subscript access to the data contained in the %vector.
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* @param n The index of the element for which data should be
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* accessed.
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* @return Read/write reference to data.
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*
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* This operator allows for easy, array-style, data access.
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* Note that data access with this operator is unchecked and
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* out_of_range lookups are not defined. (For checked lookups
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* see at().)
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*/
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reference
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operator[](size_type __n)
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{ return *(this->_M_impl._M_start + __n); }
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/**
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* @brief Subscript access to the data contained in the %vector.
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* @param n The index of the element for which data should be
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* accessed.
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* @return Read-only (constant) reference to data.
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*
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* This operator allows for easy, array-style, data access.
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* Note that data access with this operator is unchecked and
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* out_of_range lookups are not defined. (For checked lookups
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* see at().)
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*/
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const_reference
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operator[](size_type __n) const
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{ return *(this->_M_impl._M_start + __n); }
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protected:
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/// @if maint Safety check used only from at(). @endif
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void
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_M_range_check(size_type __n) const
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{
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if (__n >= this->size())
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__throw_out_of_range(__N("vector::_M_range_check"));
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}
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public:
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/**
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* @brief Provides access to the data contained in the %vector.
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* @param n The index of the element for which data should be
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* accessed.
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* @return Read/write reference to data.
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* @throw std::out_of_range If @a n is an invalid index.
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*
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* This function provides for safer data access. The parameter
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* is first checked that it is in the range of the vector. The
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* function throws out_of_range if the check fails.
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*/
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reference
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at(size_type __n)
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{
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_M_range_check(__n);
|
|
return (*this)[__n];
|
|
}
|
|
|
|
/**
|
|
* @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];
|
|
}
|
|
|
|
/**
|
|
* 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);
|
|
}
|
|
|
|
/**
|
|
* @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);
|
|
}
|
|
|
|
/**
|
|
* @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());
|
|
}
|
|
|
|
/**
|
|
* 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;
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @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 */
|