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From: tanner@ki4pv.UUCP
Newsgroups: comp.lang.c
Subject: How About #define foo foo
Message-ID: <6938@ki4pv.UUCP>
Date: Thu, 12-Feb-87 20:33:57 EST
Article-I.D.: ki4pv.6938
Posted: Thu Feb 12 20:33:57 1987
Date-Received: Tue, 17-Feb-87 21:45:32 EST
Organization: CompuData South, DeLand
Lines: 15

It is interesting to note that some progs notice constructions where
a macro is defined to be itself, such as csh noting "alias foo foo".

Would it be desirable for the pre-processor to do something similar,
so that the following construction might work?

#ifndef	foo
typedef	int	(*foo)();	/* my fancy type */
#define	 foo	foo		/* remember that we know it */
#endif

Just curious.  Compiler here blows out on the above (expansion too
big), but I'd be interested to hear of other reactions to it.
-- 
<std dsclm, copies upon request>	   Tanner Andrews