| 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 | */ |
| 46 | VOID |
| 47 | wx_regfree(re) |
| 48 | regex_t *re; |
| 49 | { |
| 50 | if (re == NULL) |
| 51 | return; |
| 52 | (*((struct fns *)re->re_fns)->free)(re); |
| 53 | } |