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| author | Thien-Thi Nguyen <ttn@gnuvola.org> | 2005-08-09 07:36:12 +0000 |
|---|---|---|
| committer | Thien-Thi Nguyen <ttn@gnuvola.org> | 2005-08-09 07:36:12 +0000 |
| commit | bbfe566a8c0d240e8a0e201985cbf27dbef1e871 (patch) | |
| tree | 445ce47b1987fdaca579eb5c8a48502452f0cd24 | |
| parent | a026388b167036c4b0783094c03c92cddc7ecc44 (diff) | |
| download | emacs-bbfe566a8c0d240e8a0e201985cbf27dbef1e871.tar.gz | |
(Fexpt): Use floats for negative exponent.
| -rw-r--r-- | src/floatfns.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/floatfns.c b/src/floatfns.c index 57bece2708b..79574e0a69b 100644 --- a/src/floatfns.c +++ b/src/floatfns.c @@ -461,7 +461,8 @@ DEFUN ("expt", Fexpt, Sexpt, 2, 2, 0, CHECK_NUMBER_OR_FLOAT (arg1); CHECK_NUMBER_OR_FLOAT (arg2); if (INTEGERP (arg1) /* common lisp spec */ - && INTEGERP (arg2)) /* don't promote, if both are ints */ + && INTEGERP (arg2) /* don't promote, if both are ints, and */ + && 0 <= XINT (arg2)) /* we are sure the result is not fractional */ { /* this can be improved by pre-calculating */ EMACS_INT acc, x, y; /* some binary powers of x then accumulating */ Lisp_Object val; |