(integer-decode-float f)
(scale-float (float signif f) expon))
f)))
+
+;;; bug found by Paul Dietz: FFLOOR and similar did not work for integers
+(let ((tests '(((ffloor -8 3) (-3.0 1))
+ ((fround -8 3) (-3.0 1))
+ ((ftruncate -8 3) (-2.0 -2))
+ ((fceiling -8 3) (-2.0 -2)))))
+ (loop for (exp res) in tests
+ for real-res = (multiple-value-list (eval exp))
+ do (assert (equal real-res res))))
+
+;;; bug 45b reported by PVE
+(dolist (type '(short single double long))
+ (dolist (sign '(positive negative))
+ (let* ((name (find-symbol (format nil "LEAST-~A-~A-FLOAT"
+ sign type)
+ :cl))
+ (value (symbol-value name)))
+ (assert (zerop (/ value 2))))))
+
+;;; bug found by Paul Dietz: bad rounding on small floats
+(assert (= (fround least-positive-short-float least-positive-short-float) 1.0))