Stack.c
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上传日期:2007-01-04
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- /*
- * $Id: Stack.c,v 1.8 1998/07/22 20:36:34 wessels Exp $
- *
- * AUTHOR: Alex Rousskov
- *
- * SQUID Internet Object Cache http://squid.nlanr.net/Squid/
- * ----------------------------------------------------------
- *
- * Squid is the result of efforts by numerous individuals from the
- * Internet community. Development is led by Duane Wessels of the
- * National Laboratory for Applied Network Research and funded by the
- * National Science Foundation. Squid is Copyrighted (C) 1998 by
- * Duane Wessels and the University of California San Diego. Please
- * see the COPYRIGHT file for full details. Squid incorporates
- * software developed and/or copyrighted by other sources. Please see
- * the CREDITS file for full details.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
- *
- */
- /*
- * Stack is a (void*) stack with unlimited capacity; based on Array
- */
- #include "config.h"
- #if HAVE_ASSERT_H
- #include <assert.h>
- #endif
- #if HAVE_STRING_H
- #include <string.h>
- #endif
- #include "util.h"
- #include "Stack.h"
- void *
- stackPop(Stack * s)
- {
- assert(s);
- return s->count ? s->items[--s->count] : NULL;
- }
- void *
- stackTop(Stack *s)
- {
- assert(s);
- return s->count ? s->items[s->count-1] : NULL;
- }