[fetter-devel] problem with arrays?

[Rayiner Hashem]

Now that's a bug. Let me see what I can do about it :)

As for verrazano-support, it's a small library that bindings use to access 
to C++ virtual table lookups and virtual function calls. You can check it 
out as the verrazano-support module in CVS. Just stick it in /usr/lib/sbcl 
where asdf can find it.

On 9/2/05, Carlos Ungil <ungil at mac.com> wrote:
> 
> Hello,
> 
> thanks for your reply.
> 
> I tried to simplify the report, but I did simplify it too much :-)
> 
> In fact the error appears when I use the array in a structure:
> 
> -----[array.h]-----
> typedef char char_array[10];
> 
> typedef struct two_char_arrays
> {
> char_array first;
> char_array second;
> } two_char_arrays;
> ----------
> 
> (cffi:define-foreign-type char-array () 'anonymous4713)
> > CHAR-ARRAY
> (cffi:defcstruct two-char-arrays-1 (first char-array) (second
> char-array))
> > Unknown CFFI type: ANONYMOUS4713.
> 
> By the way, I'm ignoring the (asdf:operate 'asdf:load-op
> 'verrazano-support) line.
> I cannot find other references to "verrazano-support" anywhere. What's
> it supossed to do?
> 
> Regards,
> 
> Carlos
> 
> On Sep 2, 2005, at 12:39 PM, Rayiner Hashem wrote:
> 
> > Not a bug, just an artifact of the fact that C-FFI doesn't have an
> > array type, but Verrazano does. The C-FFI backend lowers arrays to
> > bare pointers, so the code should still work.
> >
> > On the other hand, your comment made me realize quite a significant
> > oversight with regards to arrays as arguments to virtual functions or
> > members of arrays. I'll fix those shortly. Thanks!
> >
> > Sincerely,
> > Rayiner Hashem
> >
> > On 9/2/05, Carlos Ungil <ungil at mac.com> wrote:
> >>
> >> I don't know if you're aware of this problem, I'm reporting it just in
> >> case.
> >>
> >> From files
> >>
> >> -----[array.binding]-----
> >> (defbinding "array-library"
> >> (nicknames "array")
> >> (include "array.h"))
> >> ----------
> >>
> >> and
> >>
> >> -----[array.h]-----
> >> typedef char char_array[10];
> >> ----------
> >>
> >> (verrazano:create-binding "array.binding" "array-library.lisp"
> >> :cffi-backend t)
> >> produces the following output:
> >>
> >> -----[array-library.lisp]-----
> >> (defpackage "ARRAY-LIBRARY" (:use #:COMMON-LISP #:CFFI) (:nicknames
> >> "ARRAY")
> >> (:export))
> >>
> >> (asdf:operate 'asdf:load-op 'verrazano-support)
> >> (cffi:define-foreign-type char-array () 'anonymous12)
> >> (progn)
> >> ----------
> >>
> >> Anonymous12 is not defined anywhere; is this a bug or am I missing
> >> something?
> >>
> >> Cheers,
> >>
> >> Carlos
> >>
> >> _______________________________________________
> >> fetter-devel mailing list
> >> fetter-devel at common-lisp.net
> >> http://common-lisp.net/cgi-bin/mailman/listinfo/fetter-devel
> 
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.common-lisp.net/pipermail/fetter-devel/attachments/20050902/8de24449/attachment.html>