diff options
Diffstat (limited to 'lisp/calculator.el')
| -rw-r--r-- | lisp/calculator.el | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lisp/calculator.el b/lisp/calculator.el index fab365d5f28..6c07ee2225d 100644 --- a/lisp/calculator.el +++ b/lisp/calculator.el @@ -1620,7 +1620,9 @@ To use this, apply a binary operator (evaluate it), then call this." (condition-case nil (expt x y) (overflow-error - (if (or (natnump x) (cl-evenp y)) + ;; X and Y must be integers, as expt silently returns floating-point + ;; infinity on floating-point overflow. + (if (or (natnump x) (zerop (logand x 1))) 1.0e+INF -1.0e+INF)))) |