What is the equivalent of "void" in CFFI?
void InitWindow(int width, int height, const char *title); in C (cffi:defcfun ("InitWindow" init-window) in CFFI :void <==== This void is true or not? (width (:pointer :int)) (heigh (:pointer :int)) (title (:pointer :char))) please help.
On Tue, 28 Jul 2020 at 12:53, oleg harput <olegharput@gmail.com> wrote:
void InitWindow(int width, int height, const char *title); in C
(cffi:defcfun ("InitWindow" init-window) in CFFI :void <==== This void is true or not? (width (:pointer :int)) (heigh (:pointer :int)) (title (:pointer :char)))
please help.
Yes, :void is correct there. (:pointer :int) should be :int instead and :string should be more convenient than (:pointer :char) since it'll convert Lisp strings to C strings for you. You may find https://common-lisp.net/project/cffi/manual/html_node/Tutorial.html useful. Cheers, -- Luís Oliveira http://kerno.org/~luis/
Thanks a lot! вт, 28 июл. 2020 г. в 16:25, Luís Oliveira <luismbo@gmail.com>:
On Tue, 28 Jul 2020 at 12:53, oleg harput <olegharput@gmail.com> wrote:
void InitWindow(int width, int height, const char *title);
in C
(cffi:defcfun ("InitWindow" init-window)
in CFFI
:void <==== This void is true or not? (width (:pointer :int)) (heigh (:pointer :int)) (title (:pointer :char)))
please help.
Yes, :void is correct there. (:pointer :int) should be :int instead and :string should be more convenient than (:pointer :char) since it'll convert Lisp strings to C strings for you. You may find https://common-lisp.net/project/cffi/manual/html_node/Tutorial.html useful.
Cheers,
-- Luís Oliveira http://kerno.org/~luis/
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oleg harput