Re: [Caml-list] Raising invalid_argument with a constructed string.

[immanuel litzroth <ilitzroth@gmail.com>]

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Done.
https://caml.inria.fr/mantis/view.php?id=7423
Cheers,
Immanuel


On Mon, Nov 28, 2016 at 4:50 PM, Gabriel Scherer <gabriel.scherer@gmail.com>
wrote:

> It may make sense to have caml_{failwith,invalid_argument}_value
> variants of the exception-raising functions that take a parameter, and
> be implemented using caml_raise_with_arg(s) directly instead of
> caml_raise_with_string. Could you open a mantis issue or submit a
> github pull request to track the question and continue discussion?
>
>   http://caml.inria.fr/mantis/
>   https://github.com/ocaml/ocaml/pulls
>
> On Mon, Nov 28, 2016 at 10:43 AM, David Allsopp <dra-news@metastack.com>
> wrote:
> > immanuel litzroth wrote:
> >> caml_invalid_argument(str) is no return and does not free it's
> >> argument.
> >> So calling it with a string constructed dynamically will mean it'll
> never
> >> get freed.
> >> I could construct an ocaml string and pass that to caml_raise_with_arg,
> >> but I don't seem to be able to get to the caml_exn_Invalid_argument from
> >> c. Am I missing something?
> >
> > Possibly - it's surprising that you want dynamic strings with an
> exception such as Invalid_argument which is never supposed to be caught and
> similarly with Failure where you shouldn't be matching on the string
> argument.
> >
> > At a push, you can retrieve the Invalid_argument exception from
> caml_global_data (see byterun/fail.c), but that is essentially hacking the
> runtime to do so...
> >
> >
> > David
> >
> > --
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