Path: utzoo!mnetor!uunet!steinmetz!ge-dab!codas!peora!randy
From: randy@peora.ccur.com (Randy Hendry)
Newsgroups: comp.sys.amiga
Subject: Re: Piggyback CPU boards (also legal C expressions)
Message-ID: <2636@peora.ccur.com>
Date: 16 Dec 87 17:14:51 GMT
References: <8712111630.AA17999@cory.Berkeley.EDU>
Organization: Concurrent Computer Corporation, Orlando, Fl
Lines: 22
Summary: 08 09 legal K&R octal constants

>>Speaking of things breaking, is a numeric constant of the form 08 or 09
>>strictly legal under K&R C? It showed up in an old C-A program compiled under
> 
> 	Not legal.  It is supposed to be octal.

Legal (but strange):

K&R p.180 2.4.1 Integer constants:

"An integer constant consisting of a sequence of digits is taken to be octal
if it begins with 0 (digit zero), decimal otherwise.  The digits 8 and 9 have
octal value 10 and 11 respectively."

However, the ANSI draft states things differently.
X3J11/87-140 (August 3, 1987) p.24 ll.27-29:

"A decimal constant begins with a nonzero digit and consists of a sequence of
decimal digits.  An octal constant consists of the prefix 0 optionally followed
by a sequence of the digits 0 throught 7 only."
-- 
Randy Hendry	randy@peora.ccur.com	(305) 850-1040
Concurrent Computer Corporation	2486 Sand Lake Road, Orlando, FL 32809-7642