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Re: [Caml-list] interfacing C with Ocaml (beginner questions)
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Date: 2001-06-08 (17:09)
From: Damien Doligez <Damien.Doligez@i...>
Subject: Re: [Caml-list] interfacing C with Ocaml (beginner questions)
>From: francois bereux <>

>I found a Double_val macro, but no Val_double. What is the solution ?

You must use copy_double (which will do the allocation) because
floating-point values are boxed in O'Caml.

>value add(value x, value y)
>   CAMLparam2(x,y);
>   return Val_int(Int_val(x)+Int_val(y));

This is wrong.  You must use CAMLreturn.

-- Damien
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