src/regex/regfree.c

/*
 * regfree - free an RE
 *
 * Copyright (c) 1998, 1999 Henry Spencer.	All rights reserved.
 *
 * Development of this software was funded, in part, by Cray Research Inc.,
 * UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
 * Corporation, none of whom are responsible for the results.  The author
 * thanks all of them.
 *
 * Redistribution and use in source and binary forms -- with or without
 * modification -- are permitted for any purpose, provided that
 * redistributions in source form retain this entire copyright notice and
 * indicate the origin and nature of any modifications.
 *
 * I'd appreciate being given credit for this package in the documentation
 * of software which uses it, but that is not a requirement.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
 * HENRY SPENCER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * $Header: /projects/cvsroot/pgsql-server/src/backend/regex/regfree.c,v 1.17 2003/08/04 00:43:21 momjian Exp $
 *
 *
 * You might think that this could be incorporated into regcomp.c, and
 * that would be a reasonable idea... except that this is a generic
 * function (with a generic name), applicable to all compiled REs
 * regardless of the size of their characters, whereas the stuff in
 * regcomp.c gets compiled once per character size.
 */

#include "regguts.h"


/*
 * pg_regfree - free an RE (generic function, punts to RE-specific function)
 *
 * Ignoring invocation with NULL is a convenience.
 */
void
regfree(regex_t *re)
{ wx_regfree(re); }
void
wx_regfree(regex_t *re)
{
	if (re == NULL)
		return;
	(*((struct fns *) re->re_fns)->free) (re);
}
Commit	Line	Data
	1	/*
	2	* regfree - free an RE
	3	*
	4	* Copyright (c) 1998, 1999 Henry Spencer. All rights reserved.
	5	*
	6	* Development of this software was funded, in part, by Cray Research Inc.,
	7	* UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
	8	* Corporation, none of whom are responsible for the results. The author
	9	* thanks all of them.
	10	*
	11	* Redistribution and use in source and binary forms -- with or without
	12	* modification -- are permitted for any purpose, provided that
	13	* redistributions in source form retain this entire copyright notice and
	14	* indicate the origin and nature of any modifications.
	15	*
	16	* I'd appreciate being given credit for this package in the documentation
	17	* of software which uses it, but that is not a requirement.
	18	*
	19	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
	20	* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
	21	* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
	22	* HENRY SPENCER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
	23	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
	24	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
	25	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
	26	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
	27	* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
	28	* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	29	*
	30	* $Header: /projects/cvsroot/pgsql-server/src/backend/regex/regfree.c,v 1.17 2003/08/04 00:43:21 momjian Exp $
	31	*
	32	*
	33	* You might think that this could be incorporated into regcomp.c, and
	34	* that would be a reasonable idea... except that this is a generic
	35	* function (with a generic name), applicable to all compiled REs
	36	* regardless of the size of their characters, whereas the stuff in
	37	* regcomp.c gets compiled once per character size.
	38	*/
	39
	40	#include "regguts.h"
	41
	42
	43	/*
	44	* pg_regfree - free an RE (generic function, punts to RE-specific function)
	45	*
	46	* Ignoring invocation with NULL is a convenience.
	47	*/
	48	void
	49	regfree(regex_t *re)
	50	{ wx_regfree(re); }
	51	void
	52	wx_regfree(regex_t *re)
	53	{
	54	if (re == NULL)
	55	return;
	56	(((struct fns ) re->re_fns)->free) (re);
	57	}