Re: What replaces scm_register_module_xxx (Doc update?)

[Matthias Koeppe <mkoeppe@mail.Math.Uni-Magdeburg.De>]

rm@fabula.de writes:

> On Fri, Aug 09, 2002 at 10:47:50AM +0200, Matthias Koeppe wrote:
>> [...]
>> 
>> He proposed and implemented a C API for defining modules and exporting
>> symbols, see
>> 
>>     http://mail.gnu.org/pipermail/guile-devel/2001-May/002171.html
>> 
>> I use this API in the Guile back-end of SWIG (http://www.swig.org).
>> The functions are also mentioned in the NEWS file of Guile (changes
>> after release 1.4).  The API is also used in
>> examples/box-module/box.c.
>
> Ah, thank's a lot, the "missing files". I remembered the discussion
> but forgot that Marius _did_ post a description of the new interface.
> Marius, just one more question: it looks like the signature of 
> scm_c_define_module changed slightly since your mail back last may:
>
>  scm_c_define_module (const char *name,
>                       void (*init)(void *), void *data)
>
>  - what is the purpose of 'void *data' ?

It is an opaque argument...

>  - what is passed to the init function in the void pointer and
>    what is the function supposed to return?

... that is simply passed to the init function when it is invoked.
(This makes the init function a "C closure".)  The init function
returns nothing (it has "void" return type).

>> I believe it's only an accident that the functions are not documented
>> (except for the NEWS blurb).  I think documentation should be added;
>> the changes should also go into the 1.6 release.  Preliminary
>> documentation can be found in the above message by Marius.
>
> Should this be documented soon?

Ralf, maybe you want to prepare a patch that adds the documentation to
Guile. 

Regards,

-- 
Matthias Köppe -- http://www.math.uni-magdeburg.de/~mkoeppe

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