Debugging & file I/O BIF's like %EOF, %FOUND

[berestet@xxxxxxxxxx]

Hi Phil,

I hear what you are saying and actually can see how convenient it would be
if we could view the value returned by some (or maybe all) BIFs.

However, we need to remember that BIFs are still procedure (function)
calls.
Some of them (like %FOUND) simply return a value (sort of like indicators)
while others actually perform somewhat nontrivial computations.
In general, debuggers don't allow displaying a return from a
procedure/subroutine
calls directly. A simple workaround is to assign the return value to a
variable, which
is exactly what you wanted to hear - I am sure :-)

While I don't think that your request is unreasonable, at this point I just
don't see
such changes occurring in the RPG compiler and underlying debug support.

Regards,
Vadim Berestetsky
Distributed Debugger Development
Phone (905) 413-4403; T/L  969-4403
Internet:  berestet@ca.ibm.com




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Subject:  Debugging & file I/O BIF's like %EOF, %FOUND


I posted this on the RPG-L but I think this is where
the Distributed Debugger folks lurk so I'm cross
posting it.

--- Phil Groschwitz <sublime78ska@yahoo.com> wrote:
> I would be happy if I could drag the file I/O bif
> into
> the Monitors pane in the distributed debugger.  I
> would also like to set a breakpoint on a CHAIN, for
> example, where %FOUND = '1'.
>
> I don't want to change it's value but I would like
> to
> watch it, and to set a conditional breakpoint on it.
>
> Whether it's a big deal or not to code I don't know
> but I don't think it's unreasonable to want it, or
> to
> see the value it would add to the debugger.
>
> Phil
>
> >
> > On Tue, 1 Jan 2002, Douglas Handy wrote:
> > >
> > > It would be great to be able to give it any
> > function or procedure name and have
> > > it display the return value, not just certain
> > BIFs...
> > >
>

Phil



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