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Simpler solution to handling non-IEEE 754 environments.

This commit is contained in:
Raymond Hettinger 2008-02-02 05:11:40 +00:00
parent f9859037fc
commit 2d1aa3350a
1 changed files with 3 additions and 13 deletions
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16
Objects/floatobject.c
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@ -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;