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From: bowman@reed.UUCP (Eric Bowman)
Newsgroups: comp.sys.mac.programmer
Subject: What's System Error 12, exactly?
Message-ID: <16283@reed.UUCP>
Date: 29 Mar 91 01:14:20 GMT
Organization: Reed College, Portland OR
Lines: 17

Does anyone have any suggestions for what might cause a System Error 12?
IMII says it's an "Unimplemented Core Routine: An unimplemented trap
number was encounted."

It only happens inside a printing loop, on an app run over a network,
on a Mac Plus.  Everything works fine on a Mac II, heap scrambling or no.
It's compiled for a 68000; written in MPW C++, and compiled using C 3.2b1
(optimizer on -- might this be the problem?)

Any suggestions would be greatly appreciated.

Thanks muchly,
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BoBo                                                 Ready, Willing, & Abelian
bowman@reed.{edu,bitnet,uucp}
"I think that there is a moral to this story, namely that it is more important
to have beauty in one's equations than to have them fit experiment." - Dirac