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| author | Jeffrey Yasskin <jyasskin@gmail.com> | 2007-09-07 15:15:49 (GMT) |
|---|---|---|
| committer | Jeffrey Yasskin <jyasskin@gmail.com> | 2007-09-07 15:15:49 (GMT) |
| commit | 3404b3ce2acfc550571f06e70526ff75a34effeb (patch) | |
| tree | f0d59f10296397ed947e970af4fdb8179c5aeef1 /Objects | |
| parent | aaaef110dcb58ded6257512997ddf270828dc409 (diff) | |
| download | cpython-3404b3ce2acfc550571f06e70526ff75a34effeb.zip cpython-3404b3ce2acfc550571f06e70526ff75a34effeb.tar.gz cpython-3404b3ce2acfc550571f06e70526ff75a34effeb.tar.bz2 | |
Check in some documentation tweaks for PEP 3141, add some tests, and implement
the promotion to complex on pow(negative, fraction).
Diffstat (limited to 'Objects')
| -rw-r--r-- | Objects/floatobject.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/Objects/floatobject.c b/Objects/floatobject.c index 7c489d9..eb540e6 100644 --- a/Objects/floatobject.c +++ b/Objects/floatobject.c @@ -680,9 +680,10 @@ float_pow(PyObject *v, PyObject *w, PyObject *z) * bugs so we have to figure it out ourselves. */ if (iw != floor(iw)) { - PyErr_SetString(PyExc_ValueError, "negative number " - "cannot be raised to a fractional power"); - return NULL; + /* Negative numbers raised to fractional powers + * become complex. + */ + return PyComplex_Type.tp_as_number->nb_power(v, w, z); } /* iw is an exact integer, albeit perhaps a very large one. * -1 raised to an exact integer should never be exceptional. |