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From: dewar@merv.cs.nyu.edu (Robert Dewar)
Subject: Re: Portability of Arithmetic (was: Java vs Ada 95)
Date: 1996/10/17
Message-ID: <dewar.845592146@merv>#1/1
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references: <325D7F9B.2A8B@gte.net> <1996Oct15.174526.1@eisner>
 <DzDBw3.ILH@world.std.com> <326628B8.7724@gsfc.nasa.gov>
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organization: New York University
newsgroups: comp.lang.ada
Date: 1996-10-17T00:00:00+00:00
List-Id: <comp.lang.ada>


"So you port some code, and find that the compiler can't handle it.
So you have to rewrite a bunch of code.  Yuck."

(Bob Duff, referring to finding that your friendly Ada compiler is not
 so friendly and will not support 64-bit integer arithmetic).

An obvious response: use GNAT, which guarantees 64-bit binary arithmetic,
and is almost certainly available for you to use, unless perhaps you are
on a Patriot missile, but in that case maybe you really don't WANT 64-bit
arithmetic, which is why of course the decision on whether or not to provide
it is left implementation dependent. I must say I see absolutely no good
reason for a general purpose Ada compiler not to support 64-bit binary
arithmetic.