X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;f=math.lisp;fp=math.lisp;h=e9118443fdec24c716cf21898b42615ce5973692;hb=e2b92d341da89f35b96f8ea5437bab0ec1d590f7;hp=0197d52d5652a9fcdf28f117a309766fc7f9dc12;hpb=c2974df32b94d3bd25c32fa2e181b1980da59631;p=kmrcl.git

diff --git a/math.lisp b/math.lisp
index 0197d52..e911844 100644
--- a/math.lisp
+++ b/math.lisp
@@ -70,3 +70,6 @@
 	    (incf (aref bins bin))))))
     (values bins min max)))
 	      
+
+(defun fixnum-width ()
+  (nth-value 0 (truncate (+ (/ (log (1+ most-positive-fixnum)) (log 2)) .5))))