Re: how to set breakpoint at exception throw?

[Patrick M Doane <patrick@watson.org>]

On Sat, 1 Jul 2000, Gerd Stolpmann wrote:

> Nevertheless, I have a wish: At least for programs compiled with the bytecode
> compiler, an automatic backtrace of uncaught exceptions would be often helpful
> (i.e I get a list where the last uncaught exception was raised, and all
> locations where it is re-raised in the "with" clause of the "try" statement).
> First, this type of error is very frequent, and it would save much time if the
> location where the problem occurs were output from the failing program itself.
> Second, under some environments it is difficult to run the debugger; not every
> program is run from the command-line (CGI programs, for example). Furthermore,
> such a feature would help bug searching in production environments: on such
> machines, there is usually no debugger installed, and it is sometimes difficult
> to reconstruct the failing data case.

I agree strongly that such a feature is needed for Ocaml development. I
have lost a lot of time to tracking down these problems in the past and
this is one of the few weak points in using the language right now.

Patrick