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894f3554ac
Declared and documented EOKeyValueCoding categories currently implemented by gnustep-base/Foundation in NSKeyValueCoding. Removed FOUNDATION_HAS_KVC conditionals as gnustep-base/Foundation implement NSKeyValueCoding. (-[NSObject takeStoredValuesFromDictionary:]): Added declaration reportedly missing in Apple's headers to compelte EOKeyValueCoding declarations. Most implementations rewritten. * EOControl/EONull.h/m: Define EONull to NSNull to allow pointer equality checks. Implement EONull as NSNull subclass that returns the NSNull instance. Remove old assertions. git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gdl2/trunk@17534 72102866-910b-0410-8b05-ffd578937521
54 lines
1.4 KiB
Objective-C
54 lines
1.4 KiB
Objective-C
/*
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EONull.h
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Copyright (C) 1996-2002, 2003 Free Software Foundation, Inc.
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Author: Mircea Oancea <mircea@jupiter.elcom.pub.ro>
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Date: 1996
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This file is part of the GNUstep Database 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; see the file COPYING.LIB.
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If not, write to the Free Software Foundation,
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __EONull_h__
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#define __EONull_h__
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#ifndef NeXT_Foundation_LIBRARY
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#include <Foundation/NSNull.h>
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#else
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#include <Foundation/Foundation.h>
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#endif
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#include "EODefines.h"
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@class NSString;
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#define EONull NSNull
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@interface EONull (EOSQLFormatting)
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- (NSString *)sqlString;
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@end
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@interface NSObject (EONullTest)
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- (BOOL)isEONull;
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- (BOOL)isNotEONull;
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@end
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GDL2CONTROL_EXPORT BOOL isNilOrEONull(id v);
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#endif /* __EONull_h__ */
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