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From: jmorriso@ee.ubc.ca (John Paul Morrison)
Newsgroups: comp.sys.handhelds
Subject: Jekyll and Hyde
Message-ID: <1990Nov20.104639@ee.ubc.ca>
Date: 20 Nov 90 18:46:39 GMT
Sender: root@fs1.ee.ubc.ca
Reply-To: jmorriso@ee.ubc.ca
Organization: UBC Electical Engineering
Lines: 10


The library posted by HP was pretty cute, but no one has yet
mentioned an obvious use for it, once someone disassembles it:

The library posted hooks into the error handling. This provides
a very nifty way of implementing an error handler, without an RPL
program ever knowing that errors even ocurred.

The built in IFERR structure is too  complicated: you wouldn't want to
put IFERRs around every single operation.