Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!pilchuck!seahcx!phred!jimo
From: jimo@phred.UUCP (Jim Osborn)
Newsgroups: comp.sys.mac.programmer
Subject: Re: How do you use HeapScramble?
Summary: How do you turn it back OFF???
Message-ID: <3322@phred.UUCP>
Date: 16 Jan 91 00:36:31 GMT
References: <127599@linus.mitre.org>
Reply-To: jimo@phred.UUCP (Jim Osborn)
Organization: o
Lines: 27

laf@mbunix.mitre.org (Lee Fyock) writes:
>How do you use Macbugs' heapscramble ("hs")?
>...
>came back to the debugger and stepped on the line:
>	InitGraf(&thePort);
>whereupon I was dropped back into macsbug...

I've had the same experience, seeming to imply memory-handling
problems in the toolbox calls.  Could these "errors" be caused by
being close to (or barely over) the limits for memory?  I'm trying
to work on an old 2 Meg Mac II.  My application uses a full-screen
offscreen PixMap and if I try to Run from Think C with the 
Set-Project-Type memory size less than 500K I quit with an "Out
of Memory" message.  If I try to set Think C's allocation to less
than 700K I get the "Out of Memory" message when I try to compile.

In any case, even with its 700K Think C trips MacsBug if I've
ever turned on heapscramble since the last reboot.  I assume this 
means that Think C is misbehaving somehow, but of course I don't
have control over that.

How can I turn heapscramble back OFF so that I can use the compiler again?
Surely we aren't meant to reboot after every heapscramble test, are we?
-- 
pilchuck!jimo@phred		Jim Osborn, Physio Control Corp
				11811 Willows Rd, Redmond, WA, 98073
				206-867-4704 direct to my desk