00001 // Backward-compat support -*- C++ -*-
00002
00003 // Copyright (C) 2001 Free Software Foundation, Inc.
00004 //
00005 // This file is part of the GNU ISO C++ Library. This library is free
00006 // software; you can redistribute it and/or modify it under the
00007 // terms of the GNU General Public License as published by the
00008 // Free Software Foundation; either version 2, or (at your option)
00009 // any later version.
00010
00011 // This library is distributed in the hope that it will be useful,
00012 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
00014 // GNU General Public License for more details.
00015
00016 // You should have received a copy of the GNU General Public License along
00017 // with this library; see the file COPYING. If not, write to the Free
00018 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
00019 // USA.
00020
00021 // As a special exception, you may use this file as part of a free software
00022 // library without restriction. Specifically, if other files instantiate
00023 // templates or use macros or inline functions from this file, or you compile
00024 // this file and link it with other files to produce an executable, this
00025 // file does not by itself cause the resulting executable to be covered by
00026 // the GNU General Public License. This exception does not however
00027 // invalidate any other reasons why the executable file might be covered by
00028 // the GNU General Public License.
00029
00030 /*
00031 *
00032 * Copyright (c) 1994
00033 * Hewlett-Packard Company
00034 *
00035 * Permission to use, copy, modify, distribute and sell this software
00036 * and its documentation for any purpose is hereby granted without fee,
00037 * provided that the above copyright notice appear in all copies and
00038 * that both that copyright notice and this permission notice appear
00039 * in supporting documentation. Hewlett-Packard Company makes no
00040 * representations about the suitability of this software for any
00041 * purpose. It is provided "as is" without express or implied warranty.
00042 *
00043 */
00044
00045 // Inclusion of this file is DEPRECATED. This is the original HP
00046 // default allocator. It is provided only for backward compatibility.
00047 // This file WILL BE REMOVED in a future release.
00048 //
00049 // DO NOT USE THIS FILE unless you have an old container implementation
00050 // that requires an allocator with the HP-style interface.
00051 //
00052 // Standard-conforming allocators have a very different interface. The
00053 // standard default allocator is declared in the header <memory>.
00054
00055 #ifndef _CPP_BACKWARD_DEFALLOC_H
00056 #define _CPP_BACKWARD_DEFALLOC_H 1
00057
00058 #include "backward_warning.h"
00059 #include "new.h"
00060 #include <stddef.h>
00061 #include <stdlib.h>
00062 #include <limits.h>
00063 #include "iostream.h"
00064 #include "algobase.h"
00065
00066
00067 template <class _Tp>
00068 inline _Tp* allocate(ptrdiff_t __size, _Tp*) {
00069 set_new_handler(0);
00070 _Tp* __tmp = (_Tp*)(::operator new((size_t)(__size * sizeof(_Tp))));
00071 if (__tmp == 0) {
00072 cerr << "out of memory" << endl;
00073 exit(1);
00074 }
00075 return __tmp;
00076 }
00077
00078
00079 template <class _Tp>
00080 inline void deallocate(_Tp* __buffer) {
00081 ::operator delete(__buffer);
00082 }
00083
00084 template <class _Tp>
00085 class allocator {
00086 public:
00087 typedef _Tp value_type;
00088 typedef _Tp* pointer;
00089 typedef const _Tp* const_pointer;
00090 typedef _Tp& reference;
00091 typedef const _Tp& const_reference;
00092 typedef size_t size_type;
00093 typedef ptrdiff_t difference_type;
00094 pointer allocate(size_type __n) {
00095 return ::allocate((difference_type)__n, (pointer)0);
00096 }
00097 void deallocate(pointer __p) { ::deallocate(__p); }
00098 pointer address(reference __x) { return (pointer)&__x; }
00099 const_pointer const_address(const_reference __x) {
00100 return (const_pointer)&__x;
00101 }
00102 size_type init_page_size() {
00103 return max(size_type(1), size_type(4096/sizeof(_Tp)));
00104 }
00105 size_type max_size() const {
00106 return max(size_type(1), size_type(UINT_MAX/sizeof(_Tp)));
00107 }
00108 };
00109
00110 class allocator<void> {
00111 public:
00112 typedef void* pointer;
00113 };
00114
00115
00116
00117 #endif /* _CPP_BACKWARD_DEFALLOC_H */
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