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MathGroup Archive 2005

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Re: debugging

  • To: mathgroup at smc.vnet.net
  • Subject: [mg56716] Re: [mg56676] debugging
  • From: Chris Chiasson <chris.chiasson at gmail.com>
  • Date: Wed, 4 May 2005 00:34:27 -0400 (EDT)
  • References: <200505030926.FAA25668@smc.vnet.net> <acbec1a40505031010638fa9d4@mail.gmail.com> <1115144101.31794.55.camel@30-5-214.wireless.csail.mit.edu>
  • Reply-to: Chris Chiasson <chris.chiasson at gmail.com>
  • Sender: owner-wri-mathgroup at wolfram.com

Do you mean it wasn't an error that referenced a line number? Some
errors in Mathematica do come with line numbers; I thought you had one
of those kind and were just looking for a way to display line numbers.

You could add your own type checking/debugging code that will produce
its own warning messages. That would help you locate the problem.

I usually start from the name of the function that produces an error
and tear my function apart, call by call, until I find the step
between which the output went from good to bad.

You may find ctrl+shift+b useful for this. You may also wish to make
use of the Interrupt[] , Abort[] and Throw/Catch calls.

On 5/3/05, Daniel Roy <droy at mit.edu> wrote:
> There are no line numbers in the reported bugs, of course.
> 
> On Tue, 2005-05-03 at 13:10 -0400, Chris Chiasson wrote:
> > You could load the code into the vi editor (or your favorite text
> > editor) and turn on the line numbers.
> >
> > On 5/3/05, Daniel Roy <droy at mit.edu> wrote:
> > >
> > > My question concerns debugging.  I've done googling to find a quick
> > > answer but have failed.  I'm developming large functions and without
> > > line numbers telling me where the errors occurred, its becoming very
> > > difficult to develop code quickly.  Can anyone point me in the right
> > > direction in terms of debugging multi line  (at least 50+ lines)
> > > functions?
> > >
> > > thanks,
> > > dan
> > >
> > >
> >
> >
> 
> 


-- 
Chris Chiasson
http://chrischiasson.com/
1 (810) 265-3161


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