> Is there any way to get more details regarding exceptions?  Whenever my
> program raises an exception, it doesn't display the line that raised it.
> 
> E.g. List.nth.  Say, I have several of these function calls.  How can I
> tell which one got the wrong list or index?

This should be in the FAQ somewhere:

- Compile and link to bytecode with debugging info enabled ("ocamlc -g").
- Set the environment variable OCAMLRUNPARAMS to the value "b"
  (as in "backtrace").
- Execute your program.  Voila, nice stack backtrace with line numbers.

Xavier Leroy

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