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Issue #27005: Optimized the float.fromhex() class method for exact float.

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This commit is contained in:
Serhiy Storchaka 2016-05-12 10:21:14 +03:00
parent 871639a6d5
commit 25885d1dc5
2 changed files with 8 additions and 6 deletions
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11
Objects/floatobject.c
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@ -1195,7 +1195,7 @@ Return a hexadecimal representation of a floating-point number.\n\
static PyObject *
float_fromhex(PyObject *cls, PyObject *arg)
{
PyObject *result_as_float, *result;
PyObject *result;
double x;
long exp, top_exp, lsb, key_digit;
char *s, *coeff_start, *s_store, *coeff_end, *exp_start, *s_end;
@ -1410,11 +1410,10 @@ float_fromhex(PyObject *cls, PyObject *arg)
s++;
if (s != s_end)
goto parse_error;
result_as_float = Py_BuildValue("(d)", negate ? -x : x);
if (result_as_float == NULL)
return NULL;
result = PyObject_CallObject(cls, result_as_float);
Py_DECREF(result_as_float);
result = PyFloat_FromDouble(negate ? -x : x);
if (cls != (PyObject *)&PyFloat_Type && result != NULL) {
Py_SETREF(result, PyObject_CallFunctionObjArgs(cls, result));
}
return result;
overflow_error: