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 martin@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/

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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.

Shameless plug.

HELambdaP (http://helambdap.sourceforge.net) recognizes doc strings sectioned like CLHS :)

Cheers

MA

On Mar 10, 2014, at 21:05 , Martin Simmons martin@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/

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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.

-- Marco Antoniotti