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From: garry@batcomputer.tn.cornell.edu (Garry Wiegand)
Newsgroups: comp.lang.c
Subject: Portable code: identifier length
Message-ID: <1825@batcomputer.tn.cornell.edu>
Date: Mon, 15-Dec-86 01:21:24 EST
Article-I.D.: batcompu.1825
Posted: Mon Dec 15 01:21:24 1986
Date-Received: Tue, 16-Dec-86 20:42:09 EST
Reply-To: garry%cadif-oak@cu-arpa.cs.cornell.edu
Organization: Cornell Engineering && Flying Moose Graphics
Lines: 17

I notice in Martin Minow's C-spec postings that the spec currently says
that external identifiers may - dependent on implementation - be significant 
in as few as the first 6 characters.

I have a System V - derived machine that only recognizes 16 characters. Big 
Blue only does 6, naturally. I like long and descriptive names, but I also
like to be somewhat portable. So:

Question 1: are there *other* C implementations which do less than 31? (If
	    so, what's their choice, please?)

Question 2: are there *any* pre-processor implementations which do not adhere
	    to the full 31?

thanks

garry wiegand   (garry%cadif-oak@cu-arpa.cs.cornell.edu)