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| author | Raymond Hettinger <python@rcn.com> | 2008-02-02 05:11:40 (GMT) |
|---|---|---|
| committer | Raymond Hettinger <python@rcn.com> | 2008-02-02 05:11:40 (GMT) |
| commit | 2d1aa3350a40bfd333dac798afdaf2f0b937c2cf (patch) | |
| tree | a745ca81c29dc7416e6e4bdccc50ed7a696df422 /Objects | |
| parent | f9859037fc7e296a6235f27d4ac160197aed828e (diff) | |
| download | cpython-2d1aa3350a40bfd333dac798afdaf2f0b937c2cf.zip cpython-2d1aa3350a40bfd333dac798afdaf2f0b937c2cf.tar.gz cpython-2d1aa3350a40bfd333dac798afdaf2f0b937c2cf.tar.bz2 | |
Simpler solution to handling non-IEEE 754 environments.
Diffstat (limited to 'Objects')
| -rw-r--r-- | Objects/floatobject.c | 16 |
1 files changed, 3 insertions, 13 deletions
diff --git a/Objects/floatobject.c b/Objects/floatobject.c index ca05f0d..5e9371d 100644 --- a/Objects/floatobject.c +++ b/Objects/floatobject.c @@ -1173,13 +1173,6 @@ float_as_integer_ratio(PyObject *v, PyObject *unused) obj = call; \ Py_DECREF(prev); \ -#ifdef FLT_RADIX - if (FLT_RADIX != 2) { - /* This routine depends on base-2 floating_point. */ - Py_INCREF(Py_NotImplemented); - return Py_NotImplemented; - } -#endif CONVERT_TO_DOUBLE(v, self); if (Py_IS_INFINITY(self)) { @@ -1202,13 +1195,10 @@ float_as_integer_ratio(PyObject *v, PyObject *unused) for (i=0; i<300 && float_part != floor(float_part) ; i++) { float_part *= 2.0; exponent--; - } - if (i == 300) { - /* Could not convert mantissa to an integer */ - Py_INCREF(Py_NotImplemented); - return Py_NotImplemented; } - /* self == float_part * 2**exponent exactly and float_part is integral */ + /* self == float_part * 2**exponent exactly and float_part is integral. + If FLT_RADIX != 2, the 300 steps may leave a tiny fractional part + to be truncated by PyLong_FromDouble(). */ numerator = PyLong_FromDouble(float_part); if (numerator == NULL) goto error; |