Path: utzoo!mnetor!uunet!steinmetz!davidsen
From: davidsen@steinmetz.steinmetz.ge.com (William E. Davidsen Jr)
Newsgroups: comp.lang.c
Subject: Re: 3B2 cpp #ifdef + #include
Message-ID: <10171@steinmetz.steinmetz.ge.com>
Date: 30 Mar 88 13:38:44 GMT
References: <109@iquery.UUCP> <3127@csli.STANFORD.EDU> <3210@haddock.ISC.COM>
Reply-To: davidsen@crdos1.UUCP (bill davidsen)
Organization: General Electric CRD, Schenectady, NY
Lines: 24

In article <3210@haddock.ISC.COM> karl@haddock.ima.isc.com (Karl Heuer) writes:
| [...]
| should be legal.  This is indeed a bug in certain preprocessors.  Similarly, I
| believe that the warning produced by
|   #ifdef vms
|   #ifdef foo$bar /* a valid name, in VMS */
|   #endif
|   #endif
| on non-VMS systems is inappropriate, though I haven't yet determined what the
| latest dpANS says about this.

My notes from the Seattle X3J11 meeting at which identifiers were
defined states that "upper and lower case alphabetics, digits, and the
underscore character" may be used, and that "the first character may not
be a digit." Unless that idea has been changed the $ is not a legal
character for an identifier. I believe that anything goes in a quoted
filename."

As a historical note that section was written on the monorail in Seattle
after a working lunch...
-- 
	bill davidsen		(wedu@ge-crd.arpa)
  {uunet | philabs | seismo}!steinmetz!crdos1!davidsen
"Stupidity, like virtue, is its own reward" -me