[wxWidgets.git] / 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.
 *
 *
 *
 * 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"

/*
 - regfree - free an RE (generic function, punts to RE-specific function)
 *
 * Ignoring invocation with NULL is a convenience.
 */
VOID
regfree(re)
regex_t *re;
{
	if (re == NULL)
		return;
	(*((struct fns *)re->re_fns)->free)(re);
}
Commit	Line	Data
c0a7edde RN	1	/*
	2	* regfree - free an RE
	3	*
3ca4086b VS	4	* Copyright (c) 1998, 1999 Henry Spencer. All rights reserved.
3ca4086b VS	5	*
c0a7edde RN	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
3ca4086b VS	9	* thanks all of them.
3ca4086b VS	10	*
c0a7edde RN	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.
3ca4086b	15	*
c0a7edde RN	16	* I'd appreciate being given credit for this package in the documentation
c0a7edde RN	17	* of software which uses it, but that is not a requirement.
3ca4086b	18	*
c0a7edde RN	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	*
c0a7edde RN	30	*
	31	*
	32	* You might think that this could be incorporated into regcomp.c, and
	33	* that would be a reasonable idea... except that this is a generic
	34	* function (with a generic name), applicable to all compiled REs
	35	* regardless of the size of their characters, whereas the stuff in
	36	* regcomp.c gets compiled once per character size.
	37	*/
	38
	39	#include "regguts.h"
07dcc217	40
07dcc217	41	/*
3ca4086b	42	- regfree - free an RE (generic function, punts to RE-specific function)
c0a7edde RN	43	*
c0a7edde RN	44	* Ignoring invocation with NULL is a convenience.
07dcc217	45	*/
3ca4086b VS	46	VOID
	47	regfree(re)
	48	regex_t *re;
07dcc217	49	{
c0a7edde	50	if (re == NULL)
07dcc217	51	return;
3ca4086b	52	(((struct fns )re->re_fns)->free)(re);
07dcc217	53	}