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40 lines
1.3 KiB
C
40 lines
1.3 KiB
C
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/* Interface for NSNull for GNUStep
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Copyright (C) 2000 Free Software Foundation, Inc.
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Written by: Richard Frith-Macdonald <rfm@gnu.org>
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Date: 2000
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This file is part of the GNUstep Base 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; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA.
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*/
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#ifndef __NSNull_h_GNUSTEP_BASE_INCLUDE
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#define __NSNull_h_GNUSTEP_BASE_INCLUDE
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/*
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* An object to use as a placeholder - in collections for instance.
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*/
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#ifndef NO_MACOS_X
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#include <Foundation/NSObject.h>
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@interface NSNull : NSObject <NSCoding, NSCopying>
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+ (NSNull*) null;
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@end
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#endif
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#endif /* __NSNull_h_GNUSTEP_BASE_INCLUDE */
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