sl@0: /*
sl@0:  * regfree - free an RE
sl@0:  *
sl@0:  * Copyright (c) 1998, 1999 Henry Spencer.  All rights reserved.
sl@0:  * 
sl@0:  * Development of this software was funded, in part, by Cray Research Inc.,
sl@0:  * UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
sl@0:  * Corporation, none of whom are responsible for the results.  The author
sl@0:  * thanks all of them. 
sl@0:  * 
sl@0:  * Redistribution and use in source and binary forms -- with or without
sl@0:  * modification -- are permitted for any purpose, provided that
sl@0:  * redistributions in source form retain this entire copyright notice and
sl@0:  * indicate the origin and nature of any modifications.
sl@0:  * 
sl@0:  * I'd appreciate being given credit for this package in the documentation
sl@0:  * of software which uses it, but that is not a requirement.
sl@0:  * 
sl@0:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
sl@0:  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
sl@0:  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
sl@0:  * HENRY SPENCER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
sl@0:  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
sl@0:  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
sl@0:  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
sl@0:  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
sl@0:  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
sl@0:  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
sl@0:  *
sl@0:  *
sl@0:  *
sl@0:  * You might think that this could be incorporated into regcomp.c, and
sl@0:  * that would be a reasonable idea... except that this is a generic
sl@0:  * function (with a generic name), applicable to all compiled REs
sl@0:  * regardless of the size of their characters, whereas the stuff in
sl@0:  * regcomp.c gets compiled once per character size.
sl@0:  */
sl@0: 
sl@0: #include "regguts.h"
sl@0: 
sl@0: /*
sl@0:  - regfree - free an RE (generic function, punts to RE-specific function)
sl@0:  *
sl@0:  * Ignoring invocation with NULL is a convenience.
sl@0:  */
sl@0: VOID
sl@0: regfree(re)
sl@0: regex_t *re;
sl@0: {
sl@0: 	if (re == NULL)
sl@0: 		return;
sl@0: 	(*((struct fns *)re->re_fns)->free)(re);
sl@0: }