Re: File Exception/Error Subroutine - INFSR

Dan,

The file exception routine comes into action when an error occurs that your
program does not handle. As soon as you use an error extender or error
indicator, your program 'handles' the error.

The catch with an exception routine is that you get thrown back to the start
of the mainline (there are a few options, but this is the most logical).
That means your mainline gets cluttered with extra code; you have to be
aware that you might be returning from an exception. What we do is: set a
condition in the error routine; the first part of the mainline is not
executed in case of error recovery; then we clear the condition and write
the screen. Not very pretty, but it works.

Joep Beckeringh

----- Original Message -----
From: "Dan" <dbcerpg@yahoo.com>
To: <rpg400-l@midrange.com>
Sent: Monday, November 25, 2002 7:16 PM
Subject: RE: File Exception/Error Subroutine - INFSR


> Buck, the MONITOR op group sounds like a good idea, once we upgrade
> from v4r5.  I'm not sure this group is ready for file I/O isolated in a
> subroutine.  One step at a time.
>
> What happens when a File Exception/Error Subroutine is defined for a
> file and you check for %error right after a chain op?  Will the "local"
> %error test override the INFSR?
>
> TIA, Dan