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From: Damien Doligez <damien.doligez@inria.fr>
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Subject: Re: [Caml-list] problem creating .cma library
Date: Tue, 5 Jan 2010 14:04:56 +0100
References: <56670.41.177.16.252.1262195331.squirrel@41.177.16.252> <4B3BE288.4030701@citycable.ch>
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X-Spam: no; 0.00; damien:01 damien:01 guillaume:01 stdio:01 mlvalues:01 mylib:01 mylib:01 camlprim:01 stub:01 camlparam:01 val:01 val:01 camlparam:01 camlreturn:01 2009:98 


On 2009-12-31, at 00:30, Guillaume Yziquel wrote:

>> #include <stdio.h>
>> #include <caml/mlvalues.h>
>> #include "../mylib/mylib.h"
>> CAMLprim value
>> my_print_stub(value v) {
>
>      CAMLparam1(v);  /* is missing here, for garbage
>                         collection purposes. */
>
>>    char* str = (char*)String_val( v );
>
>      /* You do not need the right-hand side (char*) casting. */
>
>>    my_print( str );
>>    return Val_unit;
>> }

If you use CAMLparam1, you must use CAMLreturn instead of return.

-- Damien