optionals in C procedures

optionals in C procedures

[Zeeshan Ali (Khattak)]

Hi,
  As soon as I updated my guile installation from git master, the test
app in my guile-gir project started to fail. On a bit of
investigation, I found out that the problem is in this code:

<code>
static SCM
scm_g_irepository_require (SCM scm_repository,
                                                 SCM scm_namespace,
                                                 SCM scm_version,
                                                 SCM scm_flags)
{
        const char *version;

        if (SCM_UNBNDP (scm_version))
                version = NULL;
        else
                version = scm_to_locale_string (scm_version);
...
}

        scm_c_define_gsubr ("g-irepository-require", 2, 2, 0,
scm_g_irepository_require);


</code>

   Whats happening is that my scheme code is not passing any value to
the optional argument version and guile is not making sure that the
argument is unbound. Is this a regression or some intentional change?

-- 
Regards,

Zeeshan Ali (Khattak)
FSF member#5124

Re: optionals in C procedures

[Andy Wingo]

Hi,

On Sun 04 Apr 2010 17:15, "Zeeshan Ali (Khattak)" <zeenix@gmail.com> writes:

> <code>
> static SCM
> scm_g_irepository_require (SCM scm_repository,
>                                                  SCM scm_namespace,
>                                                  SCM scm_version,
>                                                  SCM scm_flags)
> {
>         const char *version;
>
>         if (SCM_UNBNDP (scm_version))
>                 version = NULL;
>         else
>                 version = scm_to_locale_string (scm_version);
> ...
> }
>
>         scm_c_define_gsubr ("g-irepository-require", 2, 2, 0,
> scm_g_irepository_require);
>
>
> </code>
>
>    Whats happening is that my scheme code is not passing any value to
> the optional argument version and guile is not making sure that the
> argument is unbound. Is this a regression or some intentional change?

I think you might need to make clean && make, in Guile and in your
project. (The actual value for SCM_UNDEFINED changed, and I have seen
cases in which automake doesn't get the deps right. This sort of thing
won't happen after 2.0.)

Andy
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