0f46e9f10c
git-svn-id: http://svn.berlios.de/svnroot/repos/oolite-linux/trunk@3 127b21dd-08f5-0310-b4b7-95ae10353056
122 lines
3.9 KiB
Objective-C
122 lines
3.9 KiB
Objective-C
//
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// $Id: Comparison.h,v 1.3 2004/12/12 20:17:24 will_mason Exp $
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//
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// vi: set ft=objc:
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/*
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* ObjectiveLib - a library of containers and algorithms for Objective-C
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*
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* Copyright (c) 2004
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* Will Mason
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*
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* Portions:
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*
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* Copyright (c) 1994
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* Hewlett-Packard Company
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*
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* Copyright (c) 1996,1997
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* Silicon Graphics Computer Systems, Inc.
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*
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* Copyright (c) 1997
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* Moscow Center for SPARC Technology
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*
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* Copyright (c) 1999
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* Boris Fomitchev
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*
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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 Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* You may contact the author at will_mason@users.sourceforge.net.
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*/
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#if defined(GNUSTEP)
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#if !defined(__COMPARISON_OL_GUARD)
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#define __COMPARISON_OL_GUARD
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#include <Foundation/NSObject.h>
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/**
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* @category NSObject(OLComparisonMethods) Comparison.h Objectivelib/Comparison.h
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*
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* Comparison methods used in @ref Functors "function objects". These comparison
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* methods are only required to be included when GNUstep is the platform, as
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* Cocoa already defines them. Under Cocoa they are declared in the
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* intuitively-named file @c NSScriptWhoseTests.h. All of these methods send
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* the message @c compare: to the receiving object.
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*
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* @pre The receiving object must implement the method @c compare:.
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*/
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@interface NSObject (OLComparisonMethods)
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/**
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* Return whether another object is equal to this one. This message returns YES if
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* and only if the message @c compare: returns @c NSOrderedSame.
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*
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* @param object the object to which to compare this one
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* @return YES if @a object is equal to this one, NO otherwise
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*/
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- (BOOL) isEqualTo: (id)object;
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/**
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* Return whether this object is greater than another one. This message returns
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* YES if and only if @c compare: returns @c NSOrderedDescending.
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*
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* @param object the object to which to compare this one
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* @return YES if this object is greater than @a object, NO otherwise
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*/
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- (BOOL) isGreaterThan: (id)object;
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/**
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* Return whether this object is greater than or equal to another one. This message returns
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* YES if and only if @c compare: does not return @c NSOrderedAscending.
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*
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* @param object the object to which to compare this one
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* @return YES if this object is greater than or equal to @a object, NO otherwise
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*/
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- (BOOL) isGreaterThanOrEqualTo: (id)object;
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/**
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* Return whether this object is less than another one. This message returns
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* YES if and only if @c compare: returns @c NSOrderedAscending.
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*
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* @param object the object to which to compare this one
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* @return YES if this object is less than @a object, NO otherwise
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*/
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- (BOOL) isLessThan: (id)object;
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/**
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* Return whether this object is less than or equal to another one. This message returns
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* YES if and only if @c compare: does not return @c NSOrderedDescending.
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*
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* @param object the object to which to compare this one
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* @return YES if this object is less than or equal to @a object, NO otherwise
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*/
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- (BOOL) isLessThanOrEqualTo: (id)object;
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/**
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* Return whether another object is not equal to this one. This message returns YES if
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* and only if the message @c compare: does not return @c NSOrderedSame.
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*
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* @param object the object to which to compare this one
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* @return YES if @a object is not equal to this one, NO otherwise
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*/
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- (BOOL) isNotEqualTo: (id)object;
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@end
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#endif
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#endif
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