+
+;;; bug found by Paul Dietz: bad rounding on small floats
+(assert (= (fround least-positive-short-float least-positive-short-float) 1.0))
+
+;;; bug found by Peter Seibel: scale-float was only accepting float
+;;; exponents, when it should accept all integers. (also bug #269)
+(assert (= (multiple-value-bind (significand expt sign)
+ (integer-decode-float least-positive-double-float)
+ (* (scale-float (float significand 0.0d0) expt) sign))
+ least-positive-double-float))
+(assert (= (multiple-value-bind (significand expt sign)
+ (decode-float least-positive-double-float)
+ (* (scale-float significand expt) sign))
+ least-positive-double-float))
+(assert (= 0.0 (scale-float 1.0 most-negative-fixnum)))
+(assert (= 0.0d0 (scale-float 1.0d0 (1- most-negative-fixnum))))
+
+(with-test (:name (:scale-float-overflow :bug-372)
+ :fails-on '(or :ppc)) ;; bug 372
+ (progn
+ (assert (raises-error? (scale-float 1.0 most-positive-fixnum)
+ floating-point-overflow))
+ (assert (raises-error? (scale-float 1.0d0 (1+ most-positive-fixnum))
+ floating-point-overflow))))
+
+;;; bug found by jsnell when nfroyd tried to implement better LOGAND
+;;; type derivation.
+(assert (= (integer-decode-float (coerce -1756510900000000000
+ 'single-float))
+ 12780299))
+
+;;; MISC.564: no out-of-line %ATAN2 for constant folding
+(assert (typep
+ (funcall
+ (compile
+ nil
+ '(lambda (p1)
+ (declare (optimize (speed 3) (safety 2) (debug 3) (space 0))
+ (type complex p1))
+ (phase (the (eql #c(1.0d0 2.0d0)) p1))))
+ #c(1.0d0 2.0d0))
+ 'double-float))
+
+(with-test (:name (:addition-overflow :bug-372)
+ :fails-on '(or :ppc :mips))
+ (assert (typep (nth-value
+ 1
+ (ignore-errors
+ (sb-sys:without-interrupts
+ (loop repeat 2 summing most-positive-double-float)
+ (sleep 2))))
+ 'floating-point-overflow)))