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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@653 72102866-910b-0410-8b05-ffd578937521
114 lines
2.4 KiB
Objective-C
114 lines
2.4 KiB
Objective-C
/* Concrete implementation of NSCountedSet based on GNU Bag class
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Copyright (C) 1995 Free Software Foundation, Inc.
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Written by: R. Andrew McCallum <mccallum@gnu.ai.mit.edu>
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Created: Sep 1995
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This file is part of the GNU Objective C Class Library.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <Foundation/NSGSet.h>
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#include <objects/NSSet.h>
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#include <objects/behavior.h>
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#include <objects/Set.h>
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#include <objects/eltfuncs.h>
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#include <Foundation/NSUtilities.h>
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#include <Foundation/NSString.h>
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@interface NSGCountedSetEnumerator : NSEnumerator
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{
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NSCountedSet *bag;
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void *enum_state;
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}
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@end
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@implementation NSGCountedSetEnumerator
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- initWithCountedSet: (NSCountedSet*)d
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{
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[super init];
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bag = d;
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[bag retain];
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enum_state = 0;
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return self;
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}
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- nextObject
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{
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elt e;
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if ([bag getNextElement:&e withEnumState:&enum_state])
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return e.id_u;
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else
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return nil;
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}
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- (void) dealloc
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{
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[bag release];
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[super dealloc];
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}
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@end
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@implementation NSGCountedSet
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+ (void) initialize
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{
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static int done = 0;
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if (!done)
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{
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done = 1;
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class_add_behavior([NSGCountedSet class], [Bag class]);
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}
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}
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- initWithCapacity: (unsigned)numItems
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{
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return [self initWithType:@encode(id)
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capacity:numItems];
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}
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- (NSEnumerator*) objectEnumerator
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{
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return [[[NSGCountedSetEnumerator alloc] initWithCountedSet:self]
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autorelease];
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}
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- (void) addObject: anObject
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{
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[self addElement:anObject];
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}
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- (void) removeObject: anObject
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{
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[self removeElement:anObject];
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}
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- (unsigned int) countForObject: anObject
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{
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return [self occurrencesOfElement:anObject];
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}
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/* To deal with behavior over-enthusiasm. Will be fixed later. */
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- (BOOL) isEqual: other
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{
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return [super isEqual:other];
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}
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@end
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