#ifndef Py_CPYTHON_SETOBJECT_H

# error "this header file must not be included directly"

#define PySet_MINSIZE 8

typedef struct {

PyObject *key;

Py_hash_t hash; /* Cached hash code of the key */

} setentry;

typedef struct {

PyObject_HEAD

Py_ssize_t fill; /* Number active and dummy entries*/

Py_ssize_t used; /* Number active entries */

/* The table contains mask + 1 slots, and that's a power of 2.

Py_ssize_t mask;

/* The table points to a fixed-size smalltable for small tables

setentry *table;

Py_hash_t hash; /* Only used by frozenset objects */

Py_ssize_t finger; /* Search finger for pop() */

setentry smalltable[PySet_MINSIZE];

PyObject *weakreflist; /* List of weak references */

} PySetObject;

#define PySet_GET_SIZE(so) \

(assert(PyAnySet_Check(so)), (((PySetObject *)(so))->used))

PyAPI_DATA(PyObject *) _PySet_Dummy;

PyAPI_FUNC(int) _PySet_NextEntry(PyObject *set, Py_ssize_t *pos, PyObject **key, Py_hash_t *hash);

PyAPI_FUNC(int) _PySet_Update(PyObject *set, PyObject *iterable);