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/* Implementation for Objective-C Magnitude object
Copyright (C) 1993,1994 Free Software Foundation, Inc.
Written by: R. Andrew McCallum <mccallum@gnu.ai.mit.edu>
Date: May 1993
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 <objects/stdobjects.h>
#include <objects/Magnitude.h>
/* These methods accesses no instance variables. It is exactly the kind
of thing that should be a "behavior" associated with a protocol.
i.e. #3 on Steve Naroff's wish list. */
@implementation Magnitude
- (int) compare: anObject
{
return [super compare:anObject];
}
- (BOOL) greaterThan: anObject
{
if ([self compare:anObject] > 0)
return YES;
else
return NO;
}
- (BOOL) greaterThanOrEqual: anObject
{
if ([self compare:anObject] >= 0)
return YES;
else
return NO;
}
- (BOOL) lessThan: anObject
{
if ([self compare:anObject] < 0)
return YES;
else
return NO;
}
- (BOOL) lessThanOrEqual: anObject
{
if ([self compare:anObject] <= 0)
return YES;
else
return NO;
}
- (BOOL) between: firstObject and: secondObject
{
if ([self compare:firstObject] >= 0
&& [self compare:secondObject] <= 0)
return YES;
else
return NO;
}
- maximum: anObject
{
if ([self compare:anObject] >= 0)
return self;
else
return anObject;
}
- minimum: anObject
{
if ([self compare:anObject] <= 0)
return self;
else
return anObject;
}
@end
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