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Re: Strings from C?

From: Robert A. Uhl
Subject: Re: Strings from C?
Date: Wed, 17 Oct 2001 08:24:22 -0600
User-agent: Mutt/1.2.5i

On Wed, Oct 17, 2001 at 11:21:11AM +0200, Matthias Koeppe wrote:
> You might want to consider using an interface generator like SWIG 1.3
> ( or g-wrap.  This may save some work, and both
> tools know how to perform standard conversions between C and Scheme
> values.

Well, part of my problem is that in several places my methods take
GSList* (a singly-linked list from glib, for those who don't use that
library) as either an argument or return value.  I was tempted to use
SWIG, but everything I saw indicated that there was no way to convert
between _my_ lists and guile's lists.  Given that my application is
list-intensive, and that scheme is list-intensive, it would seem
pointless to simply wrap up more functions to create C lists from
scheme lists; something like:

(trav-mapobject-set-owners obj (gslist-new obj2 obj3 obj4))


(car (gslist-split (trav-mapobject-get-owners obj)))

is more than a little ugly, at least to my eyes.  Perh. there is a way
to do this from SWIG after all?  Obviously ideal would be able to write:

(trav-mapobject-set-owners obj '(obj2 obj3 obj4))


(car (trav-mapobject-get-owners obj))

Thanks much for the note.

Robert Uhl <address@hidden>

Merely having an open mind is nothing; the object of opening the mind,
as of opening the mouth, is to shut it again on something solid.
                                              --G.K. Chesterton

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