defalloc.h revision 132720
197403Sobrien// Backward-compat support -*- C++ -*- 297403Sobrien 397403Sobrien// Copyright (C) 2001 Free Software Foundation, Inc. 497403Sobrien// 597403Sobrien// This file is part of the GNU ISO C++ Library. This library is free 697403Sobrien// software; you can redistribute it and/or modify it under the 797403Sobrien// terms of the GNU General Public License as published by the 897403Sobrien// Free Software Foundation; either version 2, or (at your option) 997403Sobrien// any later version. 1097403Sobrien 1197403Sobrien// This library is distributed in the hope that it will be useful, 1297403Sobrien// but WITHOUT ANY WARRANTY; without even the implied warranty of 1397403Sobrien// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1497403Sobrien// GNU General Public License for more details. 1597403Sobrien 1697403Sobrien// You should have received a copy of the GNU General Public License along 1797403Sobrien// with this library; see the file COPYING. If not, write to the Free 1897403Sobrien// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 1997403Sobrien// USA. 2097403Sobrien 2197403Sobrien// As a special exception, you may use this file as part of a free software 2297403Sobrien// library without restriction. Specifically, if other files instantiate 2397403Sobrien// templates or use macros or inline functions from this file, or you compile 2497403Sobrien// this file and link it with other files to produce an executable, this 2597403Sobrien// file does not by itself cause the resulting executable to be covered by 2697403Sobrien// the GNU General Public License. This exception does not however 2797403Sobrien// invalidate any other reasons why the executable file might be covered by 2897403Sobrien// the GNU General Public License. 2997403Sobrien 3097403Sobrien/* 3197403Sobrien * 3297403Sobrien * Copyright (c) 1994 3397403Sobrien * Hewlett-Packard Company 3497403Sobrien * 3597403Sobrien * Permission to use, copy, modify, distribute and sell this software 3697403Sobrien * and its documentation for any purpose is hereby granted without fee, 3797403Sobrien * provided that the above copyright notice appear in all copies and 3897403Sobrien * that both that copyright notice and this permission notice appear 3997403Sobrien * in supporting documentation. Hewlett-Packard Company makes no 4097403Sobrien * representations about the suitability of this software for any 4197403Sobrien * purpose. It is provided "as is" without express or implied warranty. 4297403Sobrien * 4397403Sobrien */ 4497403Sobrien 4597403Sobrien// Inclusion of this file is DEPRECATED. This is the original HP 4697403Sobrien// default allocator. It is provided only for backward compatibility. 4797403Sobrien// This file WILL BE REMOVED in a future release. 4897403Sobrien// 4997403Sobrien// DO NOT USE THIS FILE unless you have an old container implementation 50132720Skan// that requires an allocator with the HP-style interface. 5197403Sobrien// 5297403Sobrien// Standard-conforming allocators have a very different interface. The 5397403Sobrien// standard default allocator is declared in the header <memory>. 5497403Sobrien 55132720Skan#ifndef _BACKWARD_DEFALLOC_H 56132720Skan#define _BACKWARD_DEFALLOC_H 1 5797403Sobrien 5897403Sobrien#include "backward_warning.h" 5997403Sobrien#include "new.h" 6097403Sobrien#include <stddef.h> 6197403Sobrien#include <stdlib.h> 62132720Skan#include <limits.h> 63132720Skan#include "iostream.h" 6497403Sobrien#include "algobase.h" 6597403Sobrien 6697403Sobrien 6797403Sobrientemplate <class _Tp> 6897403Sobrieninline _Tp* allocate(ptrdiff_t __size, _Tp*) { 6997403Sobrien set_new_handler(0); 7097403Sobrien _Tp* __tmp = (_Tp*)(::operator new((size_t)(__size * sizeof(_Tp)))); 7197403Sobrien if (__tmp == 0) { 72132720Skan cerr << "out of memory" << endl; 7397403Sobrien exit(1); 7497403Sobrien } 7597403Sobrien return __tmp; 7697403Sobrien} 7797403Sobrien 7897403Sobrien 7997403Sobrientemplate <class _Tp> 8097403Sobrieninline void deallocate(_Tp* __buffer) { 8197403Sobrien ::operator delete(__buffer); 8297403Sobrien} 8397403Sobrien 8497403Sobrientemplate <class _Tp> 8597403Sobrienclass allocator { 8697403Sobrienpublic: 8797403Sobrien typedef _Tp value_type; 8897403Sobrien typedef _Tp* pointer; 8997403Sobrien typedef const _Tp* const_pointer; 9097403Sobrien typedef _Tp& reference; 9197403Sobrien typedef const _Tp& const_reference; 9297403Sobrien typedef size_t size_type; 9397403Sobrien typedef ptrdiff_t difference_type; 94132720Skan pointer allocate(size_type __n) { 9597403Sobrien return ::allocate((difference_type)__n, (pointer)0); 9697403Sobrien } 9797403Sobrien void deallocate(pointer __p) { ::deallocate(__p); } 9897403Sobrien pointer address(reference __x) { return (pointer)&__x; } 99132720Skan const_pointer const_address(const_reference __x) { 100132720Skan return (const_pointer)&__x; 10197403Sobrien } 102132720Skan size_type init_page_size() { 103132720Skan return max(size_type(1), size_type(4096/sizeof(_Tp))); 10497403Sobrien } 105132720Skan size_type max_size() const { 106132720Skan return max(size_type(1), size_type(UINT_MAX/sizeof(_Tp))); 10797403Sobrien } 10897403Sobrien}; 10997403Sobrien 11097403Sobrienclass allocator<void> { 11197403Sobrienpublic: 11297403Sobrien typedef void* pointer; 11397403Sobrien}; 11497403Sobrien 11597403Sobrien 11697403Sobrien 117132720Skan#endif /* _BACKWARD_DEFALLOC_H */ 118