Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!sdd.hp.com!cs.utexas.edu!uunet!coplex!disk!crazyrat
From: crazyrat@disk.uucp (@jap)
Newsgroups: comp.sys.amiga.programmer
Subject: Re: Any restrictions with making programs PURE?
Summary: C, PURE, resident, Dynamic allocation
Message-ID: <1991Apr19.231119.6428@disk.uucp>
Date: 19 Apr 91 23:11:19 GMT
References: <1991Apr12.203658.11790@unlinfo.unl.edu>
Organization: Digital Information Systems of KY
Lines: 19

In article <1991Apr12.203658.11790@unlinfo.unl.edu>, 231b3678@fergvax.unl.edu (Phil Dietz) writes:
> Are there any restrictions with making 'C' programs PURE?  Is it just a matter
> of linking it with cres.o?

From my experience, the only way a program can be pure is to make the code
re-entrant.  That is, all variable space has been DYNAMICALLY allocated.

I don't normally do re-entrant routines in C, but in Assembler.  It's much
easier..

> Now this isnt for a Load-and-Stay resident program with cback.o, it's simple
> a cres.o example.

@jap


-- 
Joel C. Justen      Crazyrat Productions Ltd.
CRAZYRAT@DISK.UUCP  JCJUST01@ulkyvx.BITNET