Issue #4707: round(x, n) now returns an integer when x is an integer.
Previously it returned a float.
diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
index f87fdd2..5597bc7 100644
--- a/Python/bltinmodule.c
+++ b/Python/bltinmodule.c
@@ -1717,15 +1717,14 @@
static PyObject *
builtin_round(PyObject *self, PyObject *args, PyObject *kwds)
{
-#define UNDEF_NDIGITS (-0x7fffffff) /* Unlikely ndigits value */
static PyObject *round_str = NULL;
- int ndigits = UNDEF_NDIGITS;
+ PyObject *ndigits = NULL;
static char *kwlist[] = {"number", "ndigits", 0};
PyObject *number, *round;
- if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|i:round",
- kwlist, &number, &ndigits))
- return NULL;
+ if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|O:round",
+ kwlist, &number, &ndigits))
+ return NULL;
if (Py_TYPE(number)->tp_dict == NULL) {
if (PyType_Ready(Py_TYPE(number)) < 0)
@@ -1746,15 +1745,14 @@
return NULL;
}
- if (ndigits == UNDEF_NDIGITS)
- return PyObject_CallFunction(round, "O", number);
+ if (ndigits == NULL)
+ return PyObject_CallFunction(round, "O", number);
else
- return PyObject_CallFunction(round, "Oi", number, ndigits);
-#undef UNDEF_NDIGITS
+ return PyObject_CallFunction(round, "OO", number, ndigits);
}
PyDoc_STRVAR(round_doc,
-"round(number[, ndigits]) -> floating point number\n\
+"round(number[, ndigits]) -> number\n\
\n\
Round a number to a given precision in decimal digits (default 0 digits).\n\
This returns an int when called with one argument, otherwise the\n\