yes Olivier, i already found this solution a few hours ago digging in the Guile doc:
https://www.gnu.org/software/guile/manual/html_node/Void-Pointers-and-Byte-Access.html thanks Damien On Fri, Dec 30, 2022 at 5:03 PM Olivier Dion <olivier.d...@polymtl.ca> wrote: > On Fri, 30 Dec 2022, Damien Mattei <damien.mat...@gmail.com> wrote: > > there was a mistake in my previous post, i wanted to say int cfunc > > (int,int,char *), suggestion answered to use '*: > > > > (define cfunc (foreign-library-function "libguile-cfunc" "cfunc" > > #:return-type int #:arg-types (list int int '*))) > > > > works at this step but gives an error later: > > > > (cfunc 3 27 "toto") > > ice-9/boot-9.scm:1685:16: In procedure raise-exception: > > In procedure foreign-call: Wrong type argument in position 1 (expecting > > POINTER_P): "toto" > > Try (cfunc 3 27 (string->pointer "toto")). It's available in the module > (system foreign). > > -- > Olivier Dion > oldiob.dev >
