Path: utzoo!mnetor!uunet!seismo!sundc!pitstop!sun!decwrl!decvax!ima!haddock!karl
From: karl@haddock.ISC.COM (Karl Heuer)
Newsgroups: comp.lang.c
Subject: Re: == vs =
Message-ID: <2630@haddock.ISC.COM>
Date: 18 Feb 88 17:50:12 GMT
References: <11216@brl-adm.ARPA> <2111@chinet.UUCP> <4403@garfield.UUCP> <891@micomvax.UUCP> <3295@psuvax1.psu.edu>
Reply-To: karl@haddock.ima.isc.com (Karl Heuer)
Organization: Interactive Systems, Boston
Lines: 14

In article <3295@psuvax1.psu.edu> schmidt@gondor.cs.psu.edu (David E. Schmidt) writes:
>... Why couldn't the dpANS committee list the operator ":=" as a common
>extension ...?

Maybe because it isn't common.  I've never heard of *any* C compiler that
accepts it.  (If, however, a number of vendors start including this feature,
then I think X3J11 would be duty-bound to list it as such, and to consider it
for inclusion in the next standard.  I hope it doesn't happen.)

A better solution would be to list "if (x = y)" and friends as a common
warning.  There *is* precedent for this, since some versions of lint (and cc
too, I'm sure) will flag it.

Karl W. Z. Heuer (ima!haddock!karl or karl@haddock.isc.com), The Walking Lint