// // $Id$ // // MCPNull.m // MCPKit // // Created by Serge Cohen (serge.cohen@m4x.org) on 02/06/2002. // Copyright (c) 2001 Serge Cohen. All rights reserved. // // Forked by the Sequel Pro team (sequelpro.com), April 2009 // // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 2 of the License, or // (at your option) any later version. // // This program 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 General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA // // More info at // More info at #import "MCPNull.h" @implementation NSObject (MCPNSNullTest) /** * This Category is meant to make any kind of object the possible target to the test (isNSNull). */ - (BOOL) isNSNull { static id NSNullForComparison; if (!NSNullForComparison) NSNullForComparison = [NSNull null]; return (self == NSNullForComparison); } @end