Re: [Chicken-users] Ref foreign type.
Thanks, the patch fixes the problem. Works perfectly. Indy On Mon, Sep 21, 2009 at 10:28 PM, Jim Ursetto zbignie...@gmail.com wrote: Looks like there are two issues here. First, try applying the attached patch to fix a bug in c-backend. Second, your usage is incorrect--ref types require an operating system pointer or a locative (since they can be modified)--ref is the analog of c-pointer. For example, you can change your example to: (print (let-location ((c char #\c)) ((foreign-lambda* bool (((ref char) mC)) C_return(mC == 'c');) (location c Of course, you must then compile with csc -c++. Jim 2009/9/21 Nicholas Indy Ray arel...@gmail.com: I've been trying to use the ref FFI type (as documented here: http://chicken.wiki.br/man/4/Foreign%20type%20specifiers#(ref TYPE) ) with no success. Here is an example of my usage: (print ((foreign-lambda* bool (((ref char) mC)) C_return(mC == 'c');) #\c)) compiling this with csc from Chicken 4 gives me the error: Error: illegal foreign type `ref' I find this odd as in c-backend.scm:1170 in foreign-type-declaration this code exists: ((and (= 2 len) (eq? 'ref (car type))) (foreign-type-declaration (cadr type) (string-append target)) ) Implying that ref should still be supported. Any help with this would be greatly appreciated. Indy ___ Chicken-users mailing list Chicken-users@nongnu.org http://lists.nongnu.org/mailman/listinfo/chicken-users ___ Chicken-users mailing list Chicken-users@nongnu.org http://lists.nongnu.org/mailman/listinfo/chicken-users
[Chicken-users] Ref foreign type.
I've been trying to use the ref FFI type (as documented here: http://chicken.wiki.br/man/4/Foreign%20type%20specifiers#(ref TYPE) ) with no success. Here is an example of my usage: (print ((foreign-lambda* bool (((ref char) mC)) C_return(mC == 'c');) #\c)) compiling this with csc from Chicken 4 gives me the error: Error: illegal foreign type `ref' I find this odd as in c-backend.scm:1170 in foreign-type-declaration this code exists: ((and (= 2 len) (eq? 'ref (car type))) (foreign-type-declaration (cadr type) (string-append target)) ) Implying that ref should still be supported. Any help with this would be greatly appreciated. Indy ___ Chicken-users mailing list Chicken-users@nongnu.org http://lists.nongnu.org/mailman/listinfo/chicken-users
Re: [Chicken-users] Ref foreign type.
Looks like there are two issues here. First, try applying the attached patch to fix a bug in c-backend. Second, your usage is incorrect--ref types require an operating system pointer or a locative (since they can be modified)--ref is the analog of c-pointer. For example, you can change your example to: (print (let-location ((c char #\c)) ((foreign-lambda* bool (((ref char) mC)) C_return(mC == 'c');) (location c Of course, you must then compile with csc -c++. Jim 2009/9/21 Nicholas Indy Ray arel...@gmail.com: I've been trying to use the ref FFI type (as documented here: http://chicken.wiki.br/man/4/Foreign%20type%20specifiers#(ref TYPE) ) with no success. Here is an example of my usage: (print ((foreign-lambda* bool (((ref char) mC)) C_return(mC == 'c');) #\c)) compiling this with csc from Chicken 4 gives me the error: Error: illegal foreign type `ref' I find this odd as in c-backend.scm:1170 in foreign-type-declaration this code exists: ((and (= 2 len) (eq? 'ref (car type))) (foreign-type-declaration (cadr type) (string-append target)) ) Implying that ref should still be supported. Any help with this would be greatly appreciated. Indy ___ Chicken-users mailing list Chicken-users@nongnu.org http://lists.nongnu.org/mailman/listinfo/chicken-users Index: c-backend.scm === --- c-backend.scm (revision 15578) +++ c-backend.scm (working copy) @@ -1277,7 +1277,7 @@ ((const) (foreign-argument-conversion (cadr type))) ((enum) C_num_to_int() ((ref) - (string-append *( (foreign-type-declaration (car type) *) + (string-append *( (foreign-type-declaration (cadr type) *) )C_c_pointer_nn()) ((instance-ref) (string-append *( (cadr type) *)C_c_pointer_nn()) ___ Chicken-users mailing list Chicken-users@nongnu.org http://lists.nongnu.org/mailman/listinfo/chicken-users
