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From: keppel@pavepaws.berkeley.edu (David Keppel)
Newsgroups: net.lang.c
Subject: Re: typedef scope mess
Message-ID: <548@cad.BERKELEY.EDU>
Date: Tue, 10-Jun-86 00:02:29 EDT
Article-I.D.: cad.548
Posted: Tue Jun 10 00:02:29 1986
Date-Received: Thu, 12-Jun-86 01:30:10 EDT
References: <1003@g.cs.cmu.edu>
Sender: news@cad.BERKELEY.EDU
Reply-To: keppel@pavepaws.UUCP (David Keppel)
Organization: University of California, Berkeley
Lines: 47
Keywords: K&R C typedef scope
Summary: It *is* in my K&R

In article <1003@g.cs.cmu.edu> ckk@g.cs.cmu.edu (Chris Koenigsberg) writes:
>not in MY K&R!!
>
>tps@sdchem said the following program should be legal as it was from
>"K&R p.206":
>>	typedef float	distance;
>>
>>	main()
>>	{
>>
>>		auto int	distance;
>>
>>	/*###8 [cc] unknown size%%%*/
>>	/*###8 [cc] cannot recover from earlier errors: goodbye!%%%*/
>>	/*###8 [cc] syntax error%%%*/
>>	/*###8 [cc] warning: illegal combination of pointer and integer, op =%%%*/
>>		distance =	1;
>>		printf( "distance = %d\n", distance );
>>	}


    Well here's what's in my K&R (1978) pg 206:

KR
KR	  Remember also (section 8.5) that identifiers associated with
KR    ordinary variables on the one hand and those associated with
KR    structure and union members and tags on the other form two disjoint
KR    classes which do not conflict.  Members and tags follow the same
KR    scope rules as other identifiers.  typedef [sic] names are in the
KR    same class as ordinary identifiers.  They may be redeclared in inner
KR    blocks, but an explicit type must be given in the inner declaration:
KR
KR	    typedef float distance;
KR	    ...
KR	    {
KR		auto int  distance;
KR		...
KR    
KR    The int must be present in the second declaration, or it would be
KR    taken to be a declaration with no declarators and type
KR    distance[dagger].
KR
KR    -------
KR    [dagger] It is agreed that the ice is thin here.

    :-D avid  K eppel				    ..!ucbvax!pavepaws!keppel
		"Learning by Osmosis: Gospel in, Gospel out"