Re: [Caml-list] OCAMLRUNPARAM and backtraces

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

I should have mentioned that I'm only trying this on bytecode. Here's
a concrete example:

except.ml:

  let f () = failwith "test"
  let main () = f ()
  ;;
  main ()


% ocamlc except.ml
% ./a.out 
Fatal error: uncaught exception Failure("test")
% setenv OCAMLRUNPARAM "b=1"
% ./a.out
Fatal error: uncaught exception Failure("test")
% 


On Sat, 15 Sep 2001, Christian Lindig wrote:

> >   % setenv OCAMLRUNPARAM "b=1"
> > 
> > but I've never seen a backtrace print out for uncaught exceptions. I
> > assume that others can get this working since I've seen outputs from it on
> > the list, so I must be missing something obvious. 
> 
> The environment variable looks ok. Stack traces only work with the
> byte code interpreter. You also must not catch the exception using 
> Printexec.to_string. Otherwise I have no idea. 
> 
> -- Christian

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