free old resources in DoLoad(), apparently fixes memory leaks with gstreamer 0.10...

[wxWidgets.git] / src / regex / regfree.c

diff --git a/src/regex/regfree.c b/src/regex/regfree.c
index 9a6acf1733ab0fed70814c2528410b15d804e3ac..d4590075a471ae61ab6a3a5f68ec91856086e3b7 100644 (file)
--- a/src/regex/regfree.c
+++ b/src/regex/regfree.c
@@ -1,37 +1,53 @@
-#include <sys/types.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <regex.h>
+/*
+ * 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 "utils.h"
-#include "regex2.h"
+#include "regguts.h"
 
 /*
- - regfree - free everything
- = extern void regfree(regex_t *);
+ - regfree - free an RE (generic function, punts to RE-specific function)
+ *
+ * Ignoring invocation with NULL is a convenience.
  */
-void
-regfree(preg)
-regex_t *preg;
+VOID
+wx_regfree(re)
+regex_t *re;
 {
-       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 */
+       if (re == NULL)
                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);
+       (*((struct fns *)re->re_fns)->free)(re);
 }