1.0.9.18: Instrument COMPUTE-CALLING-FRAME for non-x86 with /noshow0.

[sbcl.git] / src / code / irrat.lisp

diff --git a/src/code/irrat.lisp b/src/code/irrat.lisp
index 5477d6d..65c96f1 100644 (file)
--- a/src/code/irrat.lisp
+++ b/src/code/irrat.lisp
@@ -95,7 +95,7 @@
     (log (+ number (sqrt (- (* number number) 1.0d0))) #.(exp 1.0d0)))
   (declaim (inline %atanh))
   (defun %atanh (number)
-    (let ((ratio (/ (1+ number) (1- number))))
+    (let ((ratio (/ (+ 1 number) (- 1 number))))
       ;; Were we effectively zero?
       (if (= ratio -1.0d0)
           0.0d0
@@ -211,6 +211,7 @@
                    (when (zerop (logior y-ihi y-lo))
                      (return-from real-expt (coerce 1d0 rtype)))
                    ;; +-NaN return x+y
+                   ;; FIXME: Hardcoded qNaN/sNaN values are not portable.
                    (when (or (> x-ihi #x7ff00000)
                              (and (= x-ihi #x7ff00000) (/= x-lo 0))
                              (> y-ihi #x7ff00000)