| 0,0 → 1,88 |
|---|
| /* |
| * |
| * Copyright (c) 1994 |
| * Hewlett-Packard Company |
| * |
| * Permission to use, copy, modify, distribute and sell this software |
| * and its documentation for any purpose is hereby granted without fee, |
| * provided that the above copyright notice appear in all copies and |
| * that both that copyright notice and this permission notice appear |
| * in supporting documentation. Hewlett-Packard Company makes no |
| * representations about the suitability of this software for any |
| * purpose. It is provided "as is" without express or implied warranty. |
| * |
| */ |
| |
| // Inclusion of this file is DEPRECATED. This is the original HP |
| // default allocator. It is provided only for backward compatibility. |
| // This file WILL BE REMOVED in a future release. |
| // |
| // DO NOT USE THIS FILE unless you have an old container implementation |
| // that requires an allocator with the HP-style interface. |
| // |
| // Standard-conforming allocators have a very different interface. The |
| // standard default allocator is declared in the header <memory>. |
| |
| #ifndef _CPP_BACKWARD_DEFALLOC_H |
| #define _CPP_BACKWARD_DEFALLOC_H 1 |
| |
| #include "backward_warning.h" |
| #include "new.h" |
| #include <stddef.h> |
| #include <stdlib.h> |
| #include <limits.h> |
| #include "iostream.h" |
| #include "algobase.h" |
| |
| |
| template <class _Tp> |
| inline _Tp* allocate(ptrdiff_t __size, _Tp*) { |
| set_new_handler(0); |
| _Tp* __tmp = (_Tp*)(::operator new((size_t)(__size * sizeof(_Tp)))); |
| if (__tmp == 0) { |
| cerr << "out of memory" << endl; |
| exit(1); |
| } |
| return __tmp; |
| } |
| |
| |
| template <class _Tp> |
| inline void deallocate(_Tp* __buffer) { |
| ::operator delete(__buffer); |
| } |
| |
| template <class _Tp> |
| class allocator { |
| public: |
| typedef _Tp value_type; |
| typedef _Tp* pointer; |
| typedef const _Tp* const_pointer; |
| typedef _Tp& reference; |
| typedef const _Tp& const_reference; |
| typedef size_t size_type; |
| typedef ptrdiff_t difference_type; |
| pointer allocate(size_type __n) { |
| return ::allocate((difference_type)__n, (pointer)0); |
| } |
| void deallocate(pointer __p) { ::deallocate(__p); } |
| pointer address(reference __x) { return (pointer)&__x; } |
| const_pointer const_address(const_reference __x) { |
| return (const_pointer)&__x; |
| } |
| size_type init_page_size() { |
| return max(size_type(1), size_type(4096/sizeof(_Tp))); |
| } |
| size_type max_size() const { |
| return max(size_type(1), size_type(UINT_MAX/sizeof(_Tp))); |
| } |
| }; |
| |
| class allocator<void> { |
| public: |
| typedef void* pointer; |
| }; |
| |
| |
| |
| #endif /* _CPP_BACKWARD_DEFALLOC_H */ |