forked from KolibriOS/kolibrios
89 lines
2.4 KiB
C++
89 lines
2.4 KiB
C++
/*
|
|
*
|
|
* 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 */
|