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Fix int/long typecase. Add check for non-binary floating point.

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Raymond Hettinger 2008-02-01 23:12:19 +00:00
parent 1aa8a696f5
commit 1bcb99a9cb
1 changed files with 9 additions and 2 deletions
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11
Objects/floatobject.c
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@ -1158,7 +1158,7 @@ float_as_integer_ratio(PyObject *v, PyObject *unused)
{ {
double self; double self;
double float_part; double float_part;
long exponent; int exponent;
PyObject *prev; PyObject *prev;
PyObject *py_exponent = NULL; PyObject *py_exponent = NULL;
@ -1172,6 +1172,13 @@ float_as_integer_ratio(PyObject *v, PyObject *unused)
obj = call; \ obj = call; \
Py_DECREF(prev); \ 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); CONVERT_TO_DOUBLE(v, self);
if (Py_IS_INFINITY(self)) { if (Py_IS_INFINITY(self)) {
@ -1202,7 +1209,7 @@ float_as_integer_ratio(PyObject *v, PyObject *unused)
/* now self = numerator * 2**exponent exactly; fold in 2**exponent */ /* now self = numerator * 2**exponent exactly; fold in 2**exponent */
denominator = PyLong_FromLong(1); denominator = PyLong_FromLong(1);
py_exponent = PyLong_FromLong(labs(exponent)); py_exponent = PyLong_FromLong(labs((long)exponent));
if (py_exponent == NULL) goto error; if (py_exponent == NULL) goto error;
INPLACE_UPDATE(py_exponent, INPLACE_UPDATE(py_exponent,
long_methods->nb_lshift(denominator, py_exponent)); long_methods->nb_lshift(denominator, py_exponent));