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From: johnl@SDFSUN1.hac.com (John Lee)
Newsgroups: comp.sys.amiga.programmer
Subject: Re: "chip" in SAS C
Message-ID: <12579@hacgate.UUCP>
Date: 9 Jan 91 02:03:18 GMT
References: <1991Jan4.031246.20044@cs.uoregon.edu> <1991Jan6.092515.6970@cs.uoregon.edu> <12545@hacgate.UUCP> <1991Jan8.070945.7475@ux1.cso.uiuc.edu>
Sender: news@hacgate.UUCP
Reply-To: johnl@SDFSUN1.hac.com (John Lee)
Organization: Hughes Aircraft Co., El Segundo, CA
Lines: 33

In article <1991Jan8.070945.7475@ux1.cso.uiuc.edu> lrg7030@uxa.cso.uiuc.edu (Loren  Rittle) writes:
>johnl@SDFSUN1.hac.com (John Lee) writes:
[...]
>> I still think the SAS/C error message is oblique.  I hate it when programs do 
>> that.
>
>No, that is not the rub :-).  SAS/C v5.10 (and the past few before it)
>fully supports the initialization of aggregate automatic variables as
>per the ANSI standard.  So, in other words, you don't know what you are
>talking about.  The reason, as stated in other messages, is that the chip
>and the auto (implied in this case) keywords are incompatible with one
>another.  If you know what an lvalue is the error message makes perfect
>sense, otherwise read pages 195-197 of K&R's second edition (Keep in mind
>that chip is a type qualifier).

Of course, how silly of me.  You can't have auto chip unless you can ensure
that the stack is entirely allocated in chip memory.  As for initialization
of auto aggregates, it's my UNIX C background.  ANSI C hasn't caught up to
BSD yet.

However, I do take exception regarding the error message.  The SAS/C error
message, "Error 25: modifiable lvalue required", does indeed make sense, but
in the same way as "syntax error" and is as helpful.  I'd much prefer 
something along the lines of "conflicting type modifier" or "storage class
conflict."

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