src/regex/regfree.c

#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include "regex.h"

#include "utils.h"
#include "regex2.h"

/*
 - regfree - free everything
 = extern void regfree(regex_t *);
 */
void
regfree(preg)
regex_t *preg;
{
	register struct re_guts *g;

	if (preg->re_magic != MAGIC1)	/* oops */
		return;			/* nice to complain, but hard */

	g = preg->re_g;
	if (g == NULL || g->magic != MAGIC2)	/* oops again */
		return;
	preg->re_magic = 0;		/* mark it invalid */
	g->magic = 0;			/* mark it invalid */

	if (g->strip != NULL)
		free((char *)g->strip);
	if (g->sets != NULL)
		free((char *)g->sets);
	if (g->setbits != NULL)
		free((char *)g->setbits);
	if (g->must != NULL)
		free(g->must);
	free((char *)g);
}
Commit	Line	Data
	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	}