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/* Concrete implementation of NSCountedSet based on GNU Bag class
Copyright (C) 1995 Free Software Foundation, Inc.
Written by: R. Andrew McCallum <mccallum@gnu.ai.mit.edu>
Created: Sep 1995
This file is part of the GNU Objective C Class Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <Foundation/NSGSet.h>
#include <objects/NSSet.h>
#include <objects/behavior.h>
#include <objects/Set.h>
#include <objects/eltfuncs.h>
#include <Foundation/NSUtilities.h>
#include <Foundation/NSString.h>
@interface NSGCountedSetEnumerator : NSEnumerator
{
NSCountedSet *bag;
void *enum_state;
}
@end
@implementation NSGCountedSetEnumerator
- initWithCountedSet: (NSCountedSet*)d
{
[super init];
bag = d;
[bag retain];
enum_state = 0;
return self;
}
- nextObject
{
elt e;
if ([bag getNextElement:&e withEnumState:&enum_state])
return e.id_u;
else
return nil;
}
- (void) dealloc
{
[bag release];
[super dealloc];
}
@end
@implementation NSGCountedSet
+ (void) initialize
{
static int done = 0;
if (!done)
{
done = 1;
class_add_behavior([NSGCountedSet class], [Bag class]);
}
}
- initWithCapacity: (unsigned)numItems
{
return [self initWithType:@encode(id)
capacity:numItems];
}
- (NSEnumerator*) objectEnumerator
{
return [[[NSGCountedSetEnumerator alloc] initWithCountedSet:self]
autorelease];
}
- (void) addObject: anObject
{
[self addElement:anObject];
}
- (void) removeObject: anObject
{
[self removeElement:anObject];
}
- (unsigned int) countForObject: anObject
{
return [self occurrencesOfElement:anObject];
}
/* To deal with behavior over-enthusiasm. Will be fixed later. */
- (BOOL) isEqual: other
{
return [super isEqual:other];
}
@end
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