Path: utzoo!attcan!uunet!lll-winken!ncis.llnl.gov!helios.ee.lbl.gov!nosc!ucsd!rutgers!cmcl2!adm!smoke!gwyn
From: gwyn@smoke.BRL.MIL (Doug Gwyn )
Newsgroups: comp.std.c
Subject: Re: ANSI C token set (including $ and @)
Message-ID: <9471@smoke.BRL.MIL>
Date: 21 Jan 89 14:55:16 GMT
References: <11343@haddock.ima.isc.com> <1858@zell.cs.vu.nl> <1989Jan16.204214.15979@utzoo.uucp> <504@sdrc.UUCP> <9438@smoke.BRL.MIL> <1989Jan20.175532.7447@utzoo.uucp>
Reply-To: gwyn@brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 11

In article <1989Jan20.175532.7447@utzoo.uucp> henry@utzoo.uucp (Henry Spencer) writes:
>>No, it isn't.  Use of the $ character in an identifier produces
>>"undefined behavior"...
>Doug, can you cite chapter and verse for this?

I was concerned only with identifiers that made it through the
preprocessing phase, since that is the situation I'm familiar with
where $ in identifiers really is wanted in some implementations.

Obviously, I don't recommend using $ in identifiers unless you
HAVE to.