Version française
Home     About     Download     Resources     Contact us    
Browse thread
exception error trace back in ocaml
[ Home ] [ Index: by date | by threads ]
[ Search: ]

[ Message by date: previous | next ] [ Message in thread: previous | next ] [ Thread: previous | next ]
Date: -- (:)
From: lin hong <lhong@a...>
Subject: Re: [Caml-list] Re: exception error trace back in ocaml


> On 21-06-2010, lin hong <lhong@amnh.org> wrote:
>>
>> I have problem getting a full traceback of some exception error. The
>> traceback looks like this:
>>
>> Fatal error: exception Invalid_argument("index out of bounds")
>> Raised at file "camlinternalLazy.ml", line 33, characters 10-11
>> Called from file "list.ml", line 74, characters 24-34
>>
>> But that's all I got, both camlinternalLazy.ml and list.ml are ocaml
>> source code, I still don't know which part of my code trigger it. Also,
>> in
>> camlinternalLazy.ml line 33, there is a "try .... with e -> raise e", is
>> this the reason I don't have a full traceback -- Maybe something else
>> catch the "raise e" ?  Any idea?
>>
>
> To get the full trace, you need to compile your code with "-g", i.e.
> ocamlc -g foo.ml
>
> If you don't have this debug flag, you won't see calls from the code you
> compiled.

Thank you for your reply.

I believe the "-g" flag is being used during compile though, for I can get
full traceback with other exception error in the code. This is the first
and only exception error without the full trace.

>
> The "try ... with e -> raise e" just re-raise the exception and you will
> be able to see it in the full trace.
>
> Regards,
> Sylvain Le Gall
>
> _______________________________________________
> Caml-list mailing list. Subscription management:
> http://yquem.inria.fr/cgi-bin/mailman/listinfo/caml-list
> Archives: http://caml.inria.fr
> Beginner's list: http://groups.yahoo.com/group/ocaml_beginners
> Bug reports: http://caml.inria.fr/bin/caml-bugs
>