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author | rgrimes <rgrimes@FreeBSD.org> | 1994-05-27 12:33:43 +0000 |
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committer | rgrimes <rgrimes@FreeBSD.org> | 1994-05-27 12:33:43 +0000 |
commit | 95bef729766af92a2bde4dcc8eff56c2924b0d9f (patch) | |
tree | bb6c42bb4fd7743bbac30e6c4f0b874b6d5ec9b9 /usr.bin/make/lst.lib/lstDestroy.c | |
download | FreeBSD-src-95bef729766af92a2bde4dcc8eff56c2924b0d9f.zip FreeBSD-src-95bef729766af92a2bde4dcc8eff56c2924b0d9f.tar.gz |
BSD 4.4 Lite Usr.bin Sources
Diffstat (limited to 'usr.bin/make/lst.lib/lstDestroy.c')
-rw-r--r-- | usr.bin/make/lst.lib/lstDestroy.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/usr.bin/make/lst.lib/lstDestroy.c b/usr.bin/make/lst.lib/lstDestroy.c new file mode 100644 index 0000000..3dedbf1 --- /dev/null +++ b/usr.bin/make/lst.lib/lstDestroy.c @@ -0,0 +1,98 @@ +/* + * Copyright (c) 1988, 1989, 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Adam de Boor. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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. + */ + +#ifndef lint +static char sccsid[] = "@(#)lstDestroy.c 8.1 (Berkeley) 6/6/93"; +#endif /* not lint */ + +/*- + * LstDestroy.c -- + * Nuke a list and all its resources + */ + +#include "lstInt.h" + +/*- + *----------------------------------------------------------------------- + * Lst_Destroy -- + * Destroy a list and free all its resources. If the freeProc is + * given, it is called with the datum from each node in turn before + * the node is freed. + * + * Results: + * None. + * + * Side Effects: + * The given list is freed in its entirety. + * + *----------------------------------------------------------------------- + */ +void +Lst_Destroy (l, freeProc) + Lst l; + register void (*freeProc)(); +{ + register ListNode ln; + register ListNode tln = NilListNode; + register List list = (List)l; + + if (l == NILLST || ! l) { + /* + * Note the check for l == (Lst)0 to catch uninitialized static Lst's. + * Gross, but useful. + */ + return; + } + + if (freeProc) { + for (ln = list->firstPtr; + ln != NilListNode && tln != list->firstPtr; + ln = tln) { + tln = ln->nextPtr; + (*freeProc) (ln->datum); + free ((Address)ln); + } + } else { + for (ln = list->firstPtr; + ln != NilListNode && tln != list->firstPtr; + ln = tln) { + tln = ln->nextPtr; + free ((Address)ln); + } + } + + free ((Address)l); +} |