Dear Shen,

you can run your program in bytecode setting the OCAMLRUNPARAM correctly
and you'll see the whole backtrace, like in

OCAMLRUNPARAM=b ./myprogram

hope this helps,
  Philippe.


2013/1/24 沈胜宇 <syshen@nudt.edu.cn>

> Dear all:
>
> My program written in ocaml terminate with the following output:
>
> Fatal error: exception Invalid_argument("index out of bounds")
>
>
> So how should I find out the lcoation in source code that raise this
> exception?
>
> Shen
>