mirror of
https://github.com/gnustep/libs-gdl2.git
synced 2025-02-21 10:30:58 +00:00
46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
|
/*
|
||
|
|
EONull.h
|
||
|
|
|
||
|
|
Copyright (C) 1996-2002 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
Author: Mircea Oancea <mircea@jupiter.elcom.pub.ro>
|
||
|
|
Date: 1996
|
||
|
|
|
||
|
|
This file is part of the GNUstep Database 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; see the file COPYING.LIB.
|
||
|
|
If not, write to the Free Software Foundation,
|
||
|
|
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __EONull_h__
|
||
|
|
#define __EONull_h__
|
||
|
|
|
||
|
|
#import <Foundation/NSObject.h>
|
||
|
|
|
||
|
|
@interface EONull : NSObject <NSCopying>
|
||
|
|
+ null;
|
||
|
|
@end /* EONull */
|
||
|
|
|
||
|
|
@interface NSObject (EONull)
|
||
|
|
|
||
|
|
- (BOOL)isEONull;
|
||
|
|
- (BOOL)isNotEONull;
|
||
|
|
|
||
|
|
@end
|
||
|
|
|
||
|
|
extern BOOL isNilOrEONull(id v);
|
||
|
|
|
||
|
|
#endif /* __EONull_h__ */
|