libs-base/Source/NSGSet.m
Scott Christley 369c38280a Remove dependency upon config.h by headers files and include
directly in source files because the config.h file is system
dependent, used just for compiling the source, and should
not be installed.
Some minor bug fixes.


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@2619 72102866-910b-0410-8b05-ffd578937521
1997-11-06 00:51:23 +00:00

138 lines
3 KiB
Objective-C

/* Concrete implementation of NSSet based on GNU Set class
Copyright (C) 1995, 1996 Free Software Foundation, Inc.
Written by: Andrew Kachites McCallum <mccallum@gnu.ai.mit.edu>
Created: September 1995
This file is part of the GNUstep Base 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 <config.h>
#include <Foundation/NSGSet.h>
#include <gnustep/base/NSSet.h>
#include <gnustep/base/behavior.h>
#include <gnustep/base/Set.h>
#include <Foundation/NSUtilities.h>
#include <Foundation/NSString.h>
@interface NSGSetEnumerator : NSEnumerator
{
NSSet *set;
void *enum_state;
}
@end
@implementation NSGSetEnumerator
- initWithSet: (NSSet*)d
{
[super init];
set = d;
[set retain];
enum_state = [set newEnumState];
return self;
}
- nextObject
{
return [set nextObjectWithEnumState: &enum_state];
}
- (void) dealloc
{
[set release];
[super dealloc];
}
@end
@implementation NSGSet
+ (void) initialize
{
static int done = 0;
if (!done)
{
done = 1;
class_add_behavior([NSGSet class], [Set class]);
}
}
/* This is the designated initializer
- initWithObjects: (id*)objects
count: (unsigned)count
Implemented by behavior. */
- (NSEnumerator*) objectEnumerator
{
return [[[NSGSetEnumerator alloc] initWithSet:self]
autorelease];
}
/* To deal with behavior over-enthusiasm. Will be fixed later. */
- (BOOL) isEqual: other
{
#if 1
return [self isEqualToSet: other];
#else
/* xxx What is the correct behavior here?
If we end up calling [NSSet -isEqualToSet:] we end up in
an infinite loop, since that method enumerates the set, and
the set enumerator asks if things are equal...
[Huh? What am I saying here?] */
return (self == other);
#endif
}
@end
@implementation NSGMutableSet
+ (void) initialize
{
static int done = 0;
if (!done)
{
done = 1;
class_add_behavior([NSGMutableSet class], [NSGSet class]);
}
}
/* This is the designated initializer
- initWithCapacity: (unsigned)numItems
implemented by behavior. */
/* Implemented by behavior:
- (void) addObject: newObject;
- (void) removeObject: anObject
*/
- (void) removeAllObjects
{
[self empty];
}
/* To deal with behavior over-enthusiasm. Will be fixed later. */
- (BOOL) isEqual: other
{
return [super isEqual:other];
}
@end