Re: [Libmesh-devel] libmesh exceptions

[Derek G. <fri...@gm...>]

On Wed, Aug 20, 2008 at 11:20 AM, Roy Stogner <ro...@st...> wrote:

> Yup, I committed it to libmesh_common.h this morning.


Thanks!


> We'll eventually want to handle those differently, I think, but not
> before 0.6.3 final.  I've thought more about your idea of putting a
> location-specific string in the exception constructors, and I think
> you're probably right in the long run.  That way application code that
> wanted something different than cerr output could intercept exceptions
> itself, and do something like an error file or a GUI dialog box if
> that was preferable.


This sounds like a good idea... and if it can be made automatic.... all the
better!

The one thing I will say about manual strings is that it might provide more
fine-grained error messages.  For instance, maybe there is a function that
is mostly implemented except if something specific is passed in... in that
case it might be nice to be able to hand code a message...

And in the spirit of thinking of GUI dialog boxes (ah - we dreaming big
today!).... it would be great to have a general error object that we can
throw with a specific text message that a GUI application could catch.  I'm
not a huge fan of these schemes in general, but there are certain times that
they make sense...

Derek