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[wxWidgets.git] / src / regex / regfree.c
1 #include <sys/types.h>
2 #include <stdio.h>
3 #include <stdlib.h>
4 #include "regex.h"
5
6 #include "utils.h"
7 #include "regex2.h"
8
9 /*
10 - regfree - free everything
11 = extern void regfree(regex_t *);
12 */
13 void
14 regfree(preg)
15 regex_t *preg;
16 {
17 register struct re_guts *g;
18
19 if (preg->re_magic != MAGIC1) /* oops */
20 return; /* nice to complain, but hard */
21
22 g = preg->re_g;
23 if (g == NULL || g->magic != MAGIC2) /* oops again */
24 return;
25 preg->re_magic = 0; /* mark it invalid */
26 g->magic = 0; /* mark it invalid */
27
28 if (g->strip != NULL)
29 free((char *)g->strip);
30 if (g->sets != NULL)
31 free((char *)g->sets);
32 if (g->setbits != NULL)
33 free((char *)g->setbits);
34 if (g->must != NULL)
35 free(g->must);
36 free((char *)g);
37 }