1 // Backward-compat support -*- C++ -*- 2 3 // Copyright (C) 2001 Free Software Foundation, Inc. 4 // 5 // This file is part of the GNU ISO C++ Library. This library is free 6 // software; you can redistribute it and/or modify it under the 7 // terms of the GNU General Public License as published by the 8 // Free Software Foundation; either version 2, or (at your option) 9 // any later version. 10 11 // This library is distributed in the hope that it will be useful, 12 // but WITHOUT ANY WARRANTY; without even the implied warranty of 13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 // GNU General Public License for more details. 15 16 // You should have received a copy of the GNU General Public License along 17 // with this library; see the file COPYING. If not, write to the Free 18 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 19 // USA. 20 21 // As a special exception, you may use this file as part of a free software 22 // library without restriction. Specifically, if other files instantiate 23 // templates or use macros or inline functions from this file, or you compile 24 // this file and link it with other files to produce an executable, this 25 // file does not by itself cause the resulting executable to be covered by 26 // the GNU General Public License. This exception does not however 27 // invalidate any other reasons why the executable file might be covered by 28 // the GNU General Public License. 29 30 /* 31 * 32 * Copyright (c) 1994 33 * Hewlett-Packard Company 34 * 35 * Permission to use, copy, modify, distribute and sell this software 36 * and its documentation for any purpose is hereby granted without fee, 37 * provided that the above copyright notice appear in all copies and 38 * that both that copyright notice and this permission notice appear 39 * in supporting documentation. Hewlett-Packard Company makes no 40 * representations about the suitability of this software for any 41 * purpose. It is provided "as is" without express or implied warranty. 42 * 43 */ 44 45 // Inclusion of this file is DEPRECATED. This is the original HP 46 // default allocator. It is provided only for backward compatibility. 47 // This file WILL BE REMOVED in a future release. 48 // 49 // DO NOT USE THIS FILE unless you have an old container implementation 50 // that requires an allocator with the HP-style interface. 51 // 52 // Standard-conforming allocators have a very different interface. The 53 // standard default allocator is declared in the header <memory>. 54 55 #ifndef _BACKWARD_DEFALLOC_H 56 #define _BACKWARD_DEFALLOC_H 1 57 58 #include "backward_warning.h" 59 #include "new.h" 60 #include <stddef.h> 61 #include <stdlib.h> 62 #include <limits.h> 63 #include "iostream.h" 64 #include "algobase.h" 65 66 67 template <class _Tp> 68 inline _Tp* allocate(ptrdiff_t __size, _Tp*) { 69 set_new_handler(0); 70 _Tp* __tmp = (_Tp*)(::operator new((size_t)(__size * sizeof(_Tp)))); 71 if (__tmp == 0) { 72 cerr << "out of memory" << endl; 73 exit(1); 74 } 75 return __tmp; 76 } 77 78 79 template <class _Tp> 80 inline void deallocate(_Tp* __buffer) { 81 ::operator delete(__buffer); 82 } 83 84 template <class _Tp> 85 class allocator { 86 public: 87 typedef _Tp value_type; 88 typedef _Tp* pointer; 89 typedef const _Tp* const_pointer; 90 typedef _Tp& reference; 91 typedef const _Tp& const_reference; 92 typedef size_t size_type; 93 typedef ptrdiff_t difference_type; 94 pointer allocate(size_type __n) { 95 return ::allocate((difference_type)__n, (pointer)0); 96 } 97 void deallocate(pointer __p) { ::deallocate(__p); } 98 pointer address(reference __x) { return (pointer)&__x; } 99 const_pointer const_address(const_reference __x) { 100 return (const_pointer)&__x; 101 } 102 size_type init_page_size() { 103 return max(size_type(1), size_type(4096/sizeof(_Tp))); 104 } 105 size_type max_size() const { 106 return max(size_type(1), size_type(UINT_MAX/sizeof(_Tp))); 107 } 108 }; 109 110 class allocator<void> { 111 public: 112 typedef void* pointer; 113 }; 114 115 116 117 #endif /* _BACKWARD_DEFALLOC_H */ 118