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