So CLHS doesn't add the return value to its declaration....so I guess its okay not to...Does anybody ever do it I mean would it be weird if I did it and if not what would be syntax pertaining to the code in my post
On Monday, March 10, 2014 1:09 PM, Martin Simmons <mar...@lispworks.com> wrote: See http://www.lispworks.com/documentation/HyperSpec/Body/f_ash.htm > >for an example of how CLHS uses the "Syntax" and "Arguments and Values" >sections to describe functions. > >-- >Martin Simmons >LispWorks Ltd >http://www.lispworks.com/ > > > > >>>>>> On Sun, 9 Mar 2014 00:46:33 -0800 (PST), Joeish W said: >> >> Here is my defcfun as I normally write it, >> >> ;; Size Mat::size() const >> ;; Size* cv_Mat_size(Mat* self) >> (defcfun ("cv_Mat_size" mat-size) (:pointer size) >> (self (:pointer mat))) >> >> >> the >> >> >> ;; Size Mat::size() const >> >> >> is the C++ function declaration with a Size return value >> >> >> The ;; Size* cv_Mat_size(Mat* self) is the C wrapper function declaration >> with a Size* return value >> >> >> This is my defcfun with a (:pointer size) return value >> >> (defcfun ("cv_Mat_size" mat-size) (:pointer size) >> (self (:pointer mat))) >> >> In my Documentation for this function I list the Common Lisp function >> declaration as >> >> (MAT-SIZE (SELF (:POINTER MAT))) >> >> >> I couldn't figure out if I should add a return value >> >> >> but in C++ the return value always goes up front i/e ;; Size Mat::size() >> const >> >> Is it common to put return values on Lisp/CFFI function declarations and if >> so where >> >> >> in this declaration (MAT-SIZE (SELF (:POINTER MAT))) should I put mine >> >> btw on the CLHS I didn't see or missed return values on any function >> declaration >> >> Thanks in advance for any takers=) >> >> Good Day. > > > >
