Re: [Caml-list] Catching exceptions into strings

[Michael Vanier <mvanier@cs.caltech.edu>]

> Date: Mon, 10 Jun 2002 07:27:15 -0700
> From: "Gaurav Chanda" <gaurav_chanda@lycos.com>
> 
> Hello
> 
> I want to catch exceptions into strings. I do not want to have pre-defined exceptions in my module which can be handled. I want to catch exceptions like "floating point exceptions" etc. 
> 
> I wrote the follwing piece of code:
> 
> value divide2 p = 2/p ;
> 
> value foo p =
>         try divide2 p
>         with
>         [e -> let _ =  do {print_string (Printexc.to_string e);flush stdout} in  9];
> 
> value _ = foo 0;
> 
> (This code is in the Camlp4 revised syntax).
> 
> When I compile and run this code, I get :
> 
> Floating point exception
> 
> 
> However, after loading OCAML, if I use this file, I get
> 
>  value divide2 : int -> int = <fun>
> value arbit : int -> int = <fun>
> Division_by_zero
> 
> That is, in the latter case, I get what I want but in the former case, I don't. Could you help me solve this problem ?
> 
> Gaurav
> 

Hmm.  I didn't think it was possible to catch floating point exceptions in
ocaml (something I'd very much like to be able to do).  Why doesn't ocaml
support this?  Or does it?

Mike
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