Commit | Line | Data |
---|---|---|
920dae64 AT |
1 | |
2 | /* Set object interface */ | |
3 | ||
4 | #ifndef Py_SETOBJECT_H | |
5 | #define Py_SETOBJECT_H | |
6 | #ifdef __cplusplus | |
7 | extern "C" { | |
8 | #endif | |
9 | ||
10 | /* | |
11 | This data structure is shared by set and frozenset objects. | |
12 | */ | |
13 | ||
14 | typedef struct { | |
15 | PyObject_HEAD | |
16 | PyObject *data; | |
17 | long hash; /* only used by frozenset objects */ | |
18 | PyObject *weakreflist; /* List of weak references */ | |
19 | ||
20 | /* Invariants: | |
21 | * data is a dictionary whose values are all True. | |
22 | * data points to the same dict for the whole life of the set. | |
23 | * For frozensets only: | |
24 | * data is immutable. | |
25 | * hash is the hash of the frozenset or -1 if not computed yet. | |
26 | */ | |
27 | } PySetObject; | |
28 | ||
29 | PyAPI_DATA(PyTypeObject) PySet_Type; | |
30 | PyAPI_DATA(PyTypeObject) PyFrozenSet_Type; | |
31 | ||
32 | #define PyFrozenSet_CheckExact(ob) ((ob)->ob_type == &PyFrozenSet_Type) | |
33 | #define PyAnySet_Check(ob) \ | |
34 | ((ob)->ob_type == &PySet_Type || (ob)->ob_type == &PyFrozenSet_Type || \ | |
35 | PyType_IsSubtype((ob)->ob_type, &PySet_Type) || \ | |
36 | PyType_IsSubtype((ob)->ob_type, &PyFrozenSet_Type)) | |
37 | ||
38 | #ifdef __cplusplus | |
39 | } | |
40 | #endif | |
41 | #endif /* !Py_SETOBJECT_H */ |