static int
_TreeSet_update(BTree *self, PyObject *seq)
{
int n=0, ind=0;
PyObject *iter, *v;
iter = PyObject_GetIter(seq);
if (iter == NULL)
return -1;
while (1) {
v = PyIter_Next(iter);
if (v == NULL) {
if (PyErr_Occurred())
goto err;
else
break;
}
ind = _BTree_set(self, v, Py_None, 1, 1);
Py_DECREF(v);
if (ind < 0)
goto err;
else
n += ind;
}
err:
Py_DECREF(iter);
if (ind < 0)
return -1;
return n;
}
static PyObject *
TreeSet_remove(BTree *self, PyObject *args)
{
PyObject *key;
UNLESS (PyArg_ParseTuple(args, "O", &key)) return NULL;
if (_BTree_set(self, key, NULL, 0, 1) < 0) return NULL;
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *
TreeSet_insert(BTree *self, PyObject *args)
{
PyObject *key;
int i;
if (!PyArg_ParseTuple(args, "O:insert", &key))
return NULL;
i = _BTree_set(self, key, Py_None, 1, 1);
if (i < 0)
return NULL;
return PyInt_FromLong(i);
}
static int
_TreeSet_update(BTree *self, PyObject *seq)
{
int n = -1;
PyObject *iter, *v;
int ind;
iter = PyObject_GetIter(seq);
if (iter == NULL)
return -1;
while (1) {
v = PyIter_Next(iter);
if (v == NULL) {
if (PyErr_Occurred())
goto err;
else
break;
}
ind = _BTree_set(self, v, Py_None, 1, 1);
Py_DECREF(v);
if (ind < 0)
goto err;
else
n += ind;
}
/* n starts out at -1, which is the error return value. If
this point is reached, then there is no error. n must be
incremented to account for the initial value of -1 instead of
0.
*/
n++;
err:
Py_DECREF(iter);
return n;
}