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 *
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"
40
41/*
42 - regfree - free an RE (generic function, punts to RE-specific function)
43 *
44 * Ignoring invocation with NULL is a convenience.
45 */
46VOID
47regfree(re)
48regex_t *re;
49{
50	if (re == NULL)
51		return;
52	(*((struct fns *)re->re_fns)->free)(re);
53}
54