Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uflorida!indri!lll-winken!uunet!mcrware!davely
From: davely@mcrware.UUCP (Dave Lyons)
Newsgroups: comp.sys.mac.programmer
Subject: Re: LSC arithmetic problem
Message-ID: <1168@mcrware.UUCP>
Date: 8 May 89 22:20:51 GMT
References: <1837@etive.ed.ac.uk>
Reply-To: davely@mcrware.UUCP (Dave Lyons)
Organization: Microware Systems Corp., Des Moines, Iowa
Lines: 20

Oops.  I cut the number of the original message.

>Presumably LSC does its intermediate arithmetic
>in 16-bit ints, so I'd have to say something like:
>
>	long L = ((long)1 << 16) + 1
>
>to enforce long intermediate values. But, this is a bit of a gotcha, and I
>couldn't find any "beware of the leopard" paragraphs in the LSC manual where
>it talks about portability.
>
>		Nick.

I think it's generally true that constants are assumed to be the "int"
type unless otherwise specified.  In order to get a "long" constant you
need to say something like 1L (pg. 35 in the old K&R).

Davely			...!sun!mcrware!davely

The usual "only my opinion" stuff applies.