1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contributor(s): Peter Schlaile <peter@schlaile.de> 2005
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file memutil/MEM_Allocator.h
* \ingroup memutil
*/
#ifndef __MEM_ALLOCATOR_H__
#define __MEM_ALLOCATOR_H__
#include <stddef.h>
#include "guardedalloc/MEM_guardedalloc.h"
template<typename _Tp>
struct MEM_Allocator
{
typedef size_t size_type;
typedef ptrdiff_t difference_type;
typedef _Tp* pointer;
typedef const _Tp* const_pointer;
typedef _Tp& reference;
typedef const _Tp& const_reference;
typedef _Tp value_type;
template<typename _Tp1>
struct rebind {
typedef MEM_Allocator<_Tp1> other;
};
MEM_Allocator() throw() {}
MEM_Allocator(const MEM_Allocator&) throw() {}
template<typename _Tp1>
MEM_Allocator(const MEM_Allocator<_Tp1>) throw() { }
~MEM_Allocator() throw() {}
pointer address(reference __x) const { return &__x; }
const_pointer address(const_reference __x) const { return &__x; }
// NB: __n is permitted to be 0. The C++ standard says nothing
// about what the return value is when __n == 0.
_Tp* allocate(size_type __n, const void* = 0) {
_Tp* __ret = NULL;
if (__n)
__ret = static_cast<_Tp*>(
MEM_mallocN(__n * sizeof(_Tp),
"STL MEM_Allocator"));
return __ret;
}
// __p is not permitted to be a null pointer.
void deallocate(pointer __p, size_type) {
MEM_freeN(__p);
}
size_type max_size() const throw() {
return size_t(-1) / sizeof(_Tp);
}
void construct(pointer __p, const _Tp& __val) {
new(__p) _Tp(__val);
}
void destroy(pointer __p) {
__p->~_Tp();
}
};
#endif // __MEM_ALLOCATOR_H__
|