Path: utzoo!mnetor!uunet!husc6!mit-eddie!uw-beaver!uw-june!pardo
From: pardo@uw-june.UUCP (David Keppel)
Newsgroups: comp.lang.c
Subject: pointer arithmatic error messages
Message-ID: <3899@uw-june.UUCP>
Date: 30 Dec 87 00:35:43 GMT
Organization: U of Washington, CSCI, Seattle
Lines: 32
Keywords: pointer aritmatic pcc

I have the following:

/* ---- */
typedef int foo;

{
    foo		*a, *b, *c;

    a = b + c;
    b += c

    if ((c += a) != b) {
	a = b;
    }
}
/* ---- */

Pcc complains about *every* operator excpet the last "=" (yes, even "!=").
I would like to know:

    why?
    how can I make it work?  (yes, I really want to do "b+=c")
    how can I make it work without doing "((int) b) += (int) c"?
    is this a feature?

(lint doesn't tell me anything more useful)
If this has been around the net before, please reply directly to me.

	;-D on  (How about *structure* arithmatic ?-)  Pardo

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