Path: utzoo!attcan!uunet!mcsun!unido!gmdzi!wittig
From: wittig@gmdzi.UUCP (Georg Wittig)
Newsgroups: comp.lang.c
Subject: Re: Nested Macros
Message-ID: <1707@gmdzi.UUCP>
Date: 21 Nov 89 08:17:21 GMT
References: <gZO1Sce00W0JQ6AKEr@andrew.cmu.edu>
Organization: GMD - The German National Research Centre for Computer Science
Lines: 18

jb3o+@andrew.cmu.edu (Jon Allen Boone) writes:
>#define DEBUG 1
>#define DB(X) #ifdef (DEBUG) printf(X)
>does anyone know how he would go about writing a macro that would
>allow him to simply type DB(x) in his code and not have to type #ifdef
>(DEBUG) printf(X) everywhere instead?

#ifdef DEBUG
#	define	DB(X)	(printf(X))
#else
#	define	DB(X)
#endif

-- 
Georg Wittig   GMD-Z1.BI   P.O. Box 1240   D-5205 St. Augustin 1 (West Germany)
email: wittig@gmdzi.uucp   phone: (+49 2241) 14-2294
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