src/regex/regfree.c

#ifdef __MWERKS__
typedef long off_t ;
#else
#include <sys/types.h>
#endif
#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	#ifdef __MWERKS__
	2	typedef long off_t ;
	3	#else
	4	#include <sys/types.h>
	5	#endif
	6	#include <stdio.h>
	7	#include <stdlib.h>
	8	#include "regex.h"
	9
	10	#include "utils.h"
	11	#include "regex2.h"
	12
	13	/*
	14	- regfree - free everything
	15	= extern void regfree(regex_t *);
	16	*/
	17	void
	18	regfree(preg)
	19	regex_t *preg;
	20	{
	21	register struct re_guts *g;
	22
	23	if (preg->re_magic != MAGIC1) /* oops */
	24	return; /* nice to complain, but hard */
	25
	26	g = preg->re_g;
	27	if (g == NULL \|\| g->magic != MAGIC2) /* oops again */
	28	return;
	29	preg->re_magic = 0; /* mark it invalid */
	30	g->magic = 0; /* mark it invalid */
	31
	32	if (g->strip != NULL)
	33	free((char *)g->strip);
	34	if (g->sets != NULL)
	35	free((char *)g->sets);
	36	if (g->setbits != NULL)
	37	free((char *)g->setbits);
	38	if (g->must != NULL)
	39	free(g->must);
	40	free((char *)g);
	41	}