/usr/include/python2.7/setobject.h is in libpython2.7-dev 2.7.9-2+deb8u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 | /* Set object interface */
#ifndef Py_SETOBJECT_H
#define Py_SETOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif
/*
There are three kinds of slots in the table:
1. Unused: key == NULL
2. Active: key != NULL and key != dummy
3. Dummy: key == dummy
Note: .pop() abuses the hash field of an Unused or Dummy slot to
hold a search finger. The hash field of Unused or Dummy slots has
no meaning otherwise.
*/
#define PySet_MINSIZE 8
typedef struct {
long hash; /* cached hash code for the entry key */
PyObject *key;
} setentry;
/*
This data structure is shared by set and frozenset objects.
*/
typedef struct _setobject PySetObject;
struct _setobject {
PyObject_HEAD
Py_ssize_t fill; /* # Active + # Dummy */
Py_ssize_t used; /* # Active */
/* The table contains mask + 1 slots, and that's a power of 2.
* We store the mask instead of the size because the mask is more
* frequently needed.
*/
Py_ssize_t mask;
/* table points to smalltable for small tables, else to
* additional malloc'ed memory. table is never NULL! This rule
* saves repeated runtime null-tests.
*/
setentry *table;
setentry *(*lookup)(PySetObject *so, PyObject *key, long hash);
setentry smalltable[PySet_MINSIZE];
long hash; /* only used by frozenset objects */
PyObject *weakreflist; /* List of weak references */
};
PyAPI_DATA(PyTypeObject) PySet_Type;
PyAPI_DATA(PyTypeObject) PyFrozenSet_Type;
/* Invariants for frozensets:
* data is immutable.
* hash is the hash of the frozenset or -1 if not computed yet.
* Invariants for sets:
* hash is -1
*/
#define PyFrozenSet_CheckExact(ob) (Py_TYPE(ob) == &PyFrozenSet_Type)
#define PyAnySet_CheckExact(ob) \
(Py_TYPE(ob) == &PySet_Type || Py_TYPE(ob) == &PyFrozenSet_Type)
#define PyAnySet_Check(ob) \
(Py_TYPE(ob) == &PySet_Type || Py_TYPE(ob) == &PyFrozenSet_Type || \
PyType_IsSubtype(Py_TYPE(ob), &PySet_Type) || \
PyType_IsSubtype(Py_TYPE(ob), &PyFrozenSet_Type))
#define PySet_Check(ob) \
(Py_TYPE(ob) == &PySet_Type || \
PyType_IsSubtype(Py_TYPE(ob), &PySet_Type))
#define PyFrozenSet_Check(ob) \
(Py_TYPE(ob) == &PyFrozenSet_Type || \
PyType_IsSubtype(Py_TYPE(ob), &PyFrozenSet_Type))
PyAPI_FUNC(PyObject *) PySet_New(PyObject *);
PyAPI_FUNC(PyObject *) PyFrozenSet_New(PyObject *);
PyAPI_FUNC(Py_ssize_t) PySet_Size(PyObject *anyset);
#define PySet_GET_SIZE(so) (((PySetObject *)(so))->used)
PyAPI_FUNC(int) PySet_Clear(PyObject *set);
PyAPI_FUNC(int) PySet_Contains(PyObject *anyset, PyObject *key);
PyAPI_FUNC(int) PySet_Discard(PyObject *set, PyObject *key);
PyAPI_FUNC(int) PySet_Add(PyObject *set, PyObject *key);
PyAPI_FUNC(int) _PySet_Next(PyObject *set, Py_ssize_t *pos, PyObject **key);
PyAPI_FUNC(int) _PySet_NextEntry(PyObject *set, Py_ssize_t *pos, PyObject **key, long *hash);
PyAPI_FUNC(PyObject *) PySet_Pop(PyObject *set);
PyAPI_FUNC(int) _PySet_Update(PyObject *set, PyObject *iterable);
#ifdef __cplusplus
}
#endif
#endif /* !Py_SETOBJECT_H */
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