Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.1 6/24/83; site watdcsu.UUCP
Path: utzoo!watmath!watdcsu!geo
From: geo@watdcsu.UUCP (Geo Swan)
Newsgroups: net.sources,net.unix,net.lang.c,net.unix-wizards
Subject: Re: Standardized predefined CPP symbols, down with folklore
Message-ID: <297@watdcsu.UUCP>
Date: Fri, 6-Jul-84 17:29:32 EDT
Article-I.D.: watdcsu.297
Posted: Fri Jul  6 17:29:32 1984
Date-Received: Sat, 7-Jul-84 01:48:54 EDT
References: <2065@rlgvax.UUCP>, <142@pyuxt.UUCP>, <8241@watmath.UUCP>
Organization: U of Waterloo, Ontario
Lines: 12

I agree with the need for standards.
Further, these standards should be properly documented.
I learned that cpp automatically sharp defined "unix",
when I tried to declare a variable named "unix".  (Try it sometime.)
When I posted a local gripe, a number of people kindly
explained this convention to me  (In fact, prior to posting
my gripe, I figured the convention out through trial and error.)

This is folklore.

None of my informants knew if and where this feature was documented.
Undocumented features like this are booby-traps.