Simpler solution to handling non-IEEE 754 environments.

diff --git a/Objects/floatobject.c b/Objects/floatobject.c
index ca05f0da1614793cf41bd56534d2da9a3c1bb798..5e9371d4da7bae5458174147322ca4e5ab172d3a 100644 (file)
--- 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;