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dekker.one
1/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2/*
3 * Main authors:
4 * Christian Schulte <schulte@gecode.org>
5 *
6 * Copyright:
7 * Christian Schulte, 2016
8 *
9 * This file is part of Gecode, the generic constraint
10 * development environment:
11 * http://www.gecode.org
12 *
13 * Permission is hereby granted, free of charge, to any person obtaining
14 * a copy of this software and associated documentation files (the
15 * "Software"), to deal in the Software without restriction, including
16 * without limitation the rights to use, copy, modify, merge, publish,
17 * distribute, sublicense, and/or sell copies of the Software, and to
18 * permit persons to whom the Software is furnished to do so, subject to
19 * the following conditions:
20 *
21 * The above copyright notice and this permission notice shall be
22 * included in all copies or substantial portions of the Software.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
28 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
29 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
30 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31 *
32 */
33
34#include <cstring>
35#include <cstdlib>
36
37#ifdef GECODE_PEAKHEAP_MALLOC_H
38#include <malloc.h>
39#endif
40
41#ifdef GECODE_PEAKHEAP_MALLOC_MALLOC_H
42#include <malloc/malloc.h>
43#endif
44
45#ifdef GECODE_ALLOCATOR
46
47namespace Gecode { namespace Support {
48
49 /**
50 * \brief Default memory allocator
51 *
52 * Acts as a wrapper around memory allocation functionality.
53 *
54 * Can be disabled by giving a "-disable-allocator" option to
55 * configure and the be re-implemented before including any other
56 * Gecode header.
57 *
58 * \ingroup FuncMem
59 */
60 class Allocator {
61 public:
62 /// Default constructor
63 Allocator(void);
64 /// Allocate memory block of size \a n
65 void* alloc(size_t n);
66 /// Return address of reallocated memory block \a p of size \a n
67 void* realloc(void* p, size_t n);
68 /// Free memory block \a p
69 void free(void* p);
70 /// Copy \a n bytes from source \a s directly to \a d and returns \a d
71 void* memcpy(void *d, const void *s, size_t n);
72 };
73
74
75 forceinline
76 Allocator::Allocator(void) {
77 }
78 forceinline void*
79 Allocator::alloc(size_t n) {
80 return ::malloc(n);
81 }
82 forceinline void*
83 Allocator::realloc(void* p, size_t n) {
84 return ::realloc(p,n);
85 }
86 forceinline void
87 Allocator::free(void* p) {
88 ::free(p);
89 }
90 forceinline void*
91 Allocator::memcpy(void *d, const void *s, size_t n) {
92 return ::memcpy(d,s,n);
93 }
94
95}}
96
97#endif
98
99namespace Gecode { namespace Support {
100
101 /**
102 * \brief The single global default memory allocator
103 * \ingroup FuncMem
104 */
105 extern GECODE_SUPPORT_EXPORT
106 Allocator allocator;
107
108}}
109
110// STATISTICS: support-any