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comparison lwar/util.c @ 171:d610b8aef91b

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Added LWAR skeleton
author lost
date Sun, 01 Mar 2009 19:37:03 +0000
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children bae1e3ecdce1
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170:bf69160da467 171:d610b8aef91b
1 /*
2 util.c
3 Copyright © 2009 William Astle
4
5 This file is part of LWAR.
6
7 LWAR is free software: you can redistribute it and/or modify it under the
8 terms of the GNU General Public License as published by the Free Software
9 Foundation, either version 3 of the License, or (at your option) any later
10 version.
11
12 This program is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 more details.
16
17 You should have received a copy of the GNU General Public License along with
18 this program. If not, see <http://www.gnu.org/licenses/>.
19 */
20
21 /*
22 Utility functions
23 */
24
25 #define __util_c_seen__
26
27 #include <malloc.h>
28 #include <stdio.h>
29 #include <stdlib.h>
30 #include <string.h>
31
32 #include "util.h"
33
34 void *lw_malloc(int size)
35 {
36 void *ptr;
37
38 ptr = malloc(size);
39 if (!ptr)
40 {
41 // bail out; memory allocation error
42 fprintf(stderr, "lw_malloc(): Memory allocation error\n");
43 exit(1);
44 }
45 return ptr;
46 }
47
48 void *lw_realloc(void *optr, int size)
49 {
50 void *ptr;
51
52 if (size == 0)
53 {
54 lw_free(optr);
55 return;
56 }
57
58 ptr = realloc(optr, size);
59 if (!ptr)
60 {
61 fprintf(stderr, "lw_realloc(): memory allocation error\n");
62 exit(1);
63 }
64 }
65
66 void lw_free(void *ptr)
67 {
68 if (ptr)
69 free(ptr);
70 }
71
72 char *lw_strdup(const char *s)
73 {
74 char *d;
75
76 if (!s)
77 return NULL;
78
79 d = strdup(s);
80 if (!d)
81 {
82 fprintf(stderr, "lw_strdup(): memory allocation error\n");
83 exit(1);
84 }
85
86 return d;
87 }