Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!rutgers!ucsd!ucbvax!decwrl!sun!pitstop!sundc!seismo!uunet!mcvax!hp4nl!mhres!jv
From: jv@mhres.mh.nl (Johan Vromans)
Newsgroups: comp.lang.c
Subject: Re: Machines for testing portability (was Re: "Numerical Recipes in C" is nonportable code)
Message-ID: <2305@mhres.mh.nl>
Date: 1 Sep 88 13:05:25 GMT
References: <673@proxftl.UUCP>
Organization: Multihouse NV, the Netherlands
Lines: 19

From article <673@proxftl.UUCP>, by bill@proxftl.UUCP (T. William Wells):
> Anybody else have suggestions on sets of systems for checking
> portability?

I have used an Hewlett-Packard HP9000 model 500, which has a very
strange memory architecture (uses non-contiguous memory
segments), and a real stack (which means that uninitialized local variables
contain a zero). Emacs cannot run on it.

There exists a Pr1me system which always has the high bit
of each byte set, so ASCII runs from 128 to 255.

Of course, EBCDIC machines catch most of the programs which
avoided <ctype.h> but use ('a' <= x && x <= 'z') , and segmented
memory machines (like PC's with large model) catch all programs
that (mis)use ints and pointers and longs.

-- 
	Johan