On Sun, 2014-03-30 at 07:18 -0700, Joeish W wrote: > Thanks for getting back to me., I really appreciate it
> Using coerce though I'm already casting it to a float on the lisp > side...I was wondering if I can cast a 4 to a float with CFFI and have > the output be a 4.0f0 like it works in C...without doing anything on > the Lisp side CFFI doesn't do automatic coercions, but you can do it with a custom type: (define-foreign-type float+int () () (:actual-type :float) (:simple-parser float+int)) (defmethod expand-to-foreign (value (type float+int)) `(coerce ,value 'float)) (with-foreign-object (val :float) (setf (mem-ref val 'float+int) 4) (mem-ref val :float)) -- Stelian Ionescu a.k.a. fe[nl]ix Quidquid latine dictum sit, altum videtur.
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