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svn+ssh://pythondev@svn.python.org/python/branches/p3yk
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r56477 | martin.v.loewis | 2007-07-21 09:04:38 +0200 (Sa, 21 Jul 2007) | 11 lines
Merged revisions 56466-56476 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
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r56476 | martin.v.loewis | 2007-07-21 08:55:02 +0200 (Sa, 21 Jul 2007) | 4 lines
PEP 3123: Provide forward compatibility with Python 3.0, while keeping
backwards compatibility. Add Py_Refcnt, Py_Type, Py_Size, and
PyVarObject_HEAD_INIT.
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r56478 | martin.v.loewis | 2007-07-21 09:47:23 +0200 (Sa, 21 Jul 2007) | 2 lines
PEP 3123: Use proper C inheritance for PyObject.
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r56479 | martin.v.loewis | 2007-07-21 10:06:55 +0200 (Sa, 21 Jul 2007) | 3 lines
Add longintrepr.h to Python.h, so that the compiler can
see that PyFalse is really some kind of PyObject*.
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r56480 | martin.v.loewis | 2007-07-21 10:47:18 +0200 (Sa, 21 Jul 2007) | 2 lines
Qualify SHIFT, MASK, BASE.
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r56482 | martin.v.loewis | 2007-07-21 19:10:57 +0200 (Sa, 21 Jul 2007) | 2 lines
Correctly refer to _ob_next.
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94 lines
2.7 KiB
C
94 lines
2.7 KiB
C
/* Set object interface */
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#ifndef Py_SETOBJECT_H
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#define Py_SETOBJECT_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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There are three kinds of slots in the table:
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1. Unused: key == NULL
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2. Active: key != NULL and key != dummy
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3. Dummy: key == dummy
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Note: .pop() abuses the hash field of an Unused or Dummy slot to
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hold a search finger. The hash field of Unused or Dummy slots has
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no meaning otherwise.
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*/
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#define PySet_MINSIZE 8
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typedef struct {
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long hash; /* cached hash code for the entry key */
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PyObject *key;
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} setentry;
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/*
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This data structure is shared by set and frozenset objects.
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*/
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typedef struct _setobject PySetObject;
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struct _setobject {
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PyObject_HEAD
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Py_ssize_t fill; /* # Active + # Dummy */
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Py_ssize_t used; /* # Active */
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/* The table contains mask + 1 slots, and that's a power of 2.
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* We store the mask instead of the size because the mask is more
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* frequently needed.
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*/
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Py_ssize_t mask;
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/* table points to smalltable for small tables, else to
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* additional malloc'ed memory. table is never NULL! This rule
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* saves repeated runtime null-tests.
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*/
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setentry *table;
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setentry *(*lookup)(PySetObject *so, PyObject *key, long hash);
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setentry smalltable[PySet_MINSIZE];
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long hash; /* only used by frozenset objects */
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PyObject *weakreflist; /* List of weak references */
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};
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PyAPI_DATA(PyTypeObject) PySet_Type;
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PyAPI_DATA(PyTypeObject) PyFrozenSet_Type;
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/* Invariants for frozensets:
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* data is immutable.
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* hash is the hash of the frozenset or -1 if not computed yet.
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* Invariants for sets:
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* hash is -1
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*/
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#define PyFrozenSet_CheckExact(ob) (Py_Type(ob) == &PyFrozenSet_Type)
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#define PyAnySet_CheckExact(ob) \
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(Py_Type(ob) == &PySet_Type || Py_Type(ob) == &PyFrozenSet_Type)
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#define PyAnySet_Check(ob) \
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(Py_Type(ob) == &PySet_Type || Py_Type(ob) == &PyFrozenSet_Type || \
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PyType_IsSubtype(Py_Type(ob), &PySet_Type) || \
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PyType_IsSubtype(Py_Type(ob), &PyFrozenSet_Type))
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PyAPI_FUNC(PyObject *) PySet_New(PyObject *);
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PyAPI_FUNC(PyObject *) PyFrozenSet_New(PyObject *);
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PyAPI_FUNC(Py_ssize_t) PySet_Size(PyObject *anyset);
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#define PySet_GET_SIZE(so) (((PySetObject *)(so))->used)
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PyAPI_FUNC(int) PySet_Clear(PyObject *set);
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PyAPI_FUNC(int) PySet_Contains(PyObject *anyset, PyObject *key);
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PyAPI_FUNC(int) PySet_Discard(PyObject *set, PyObject *key);
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PyAPI_FUNC(int) PySet_Add(PyObject *set, PyObject *key);
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PyAPI_FUNC(int) _PySet_Next(PyObject *set, Py_ssize_t *pos, PyObject **key);
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PyAPI_FUNC(int) _PySet_NextEntry(PyObject *set, Py_ssize_t *pos, PyObject **key, long *hash);
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PyAPI_FUNC(PyObject *) PySet_Pop(PyObject *set);
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PyAPI_FUNC(int) _PySet_Update(PyObject *set, PyObject *iterable);
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_SETOBJECT_H */
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