quakeforge/ruamoko/lib/Stack.r
Jeff Teunissen 7713a539ca Okay, y'all...the Ruamoko root class, Object, has been replaced with another
class with the same name. This will break things. To support it, there are
three new classes, one of which is incomplete (AutoreleasePool). It'll get
finished soonish, but the rest of the class lib will need some updating to
work.
2003-07-29 18:02:03 +00:00

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1.4 KiB
R

/*
Stack.r
A general-purpose stack class
Copyright (C) 2003 Jeff Teunissen <deek@quakeforge.net>
This file is part of the Ruamoko Standard Library.
This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or (at
your option) any later version.
This library 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
$Id$
*/
#include "Object.h"
#include "ListNode.h"
#include "Stack.h"
@implementation Stack
- (void) removeAllObjects
{
while ([self count] > 0)
[self pop];
}
- (void) addObject: (id)anObject
{
top = [[[ListNode alloc] initWithObject: anObject] setNextNode: top];
stackSize++;
}
- (id) pop
{
local id data;
local id oldTop = NIL;
if (!top)
return NIL;
oldTop = top;
top = [top next];
stackSize--;
data = [[oldTop object] retain];
[oldTop release];
return [data autorelease];
}
- (id) peek
{
return [top object];
}
- (integer) count
{
}
@end