cpython/Include/listobject.h

69 lines
2.5 KiB
C
Raw Normal View History

1991-02-19 08:39:46 -04:00
1990-10-14 09:07:46 -03:00
/* List object interface */
/*
Another generally useful object type is an list of object pointers.
This is a mutable type: the list items can be changed, and items can be
added or removed. Out-of-range indices or non-list objects are ignored.
*** WARNING *** PyList_SetItem does not increment the new item's reference
1990-10-14 09:07:46 -03:00
count, but does decrement the reference count of the item it replaces,
if not nil. It does *decrement* the reference count if it is *not*
inserted in the list. Similarly, PyList_GetItem does not increment the
1990-10-14 09:07:46 -03:00
returned item's reference count.
*/
#ifndef Py_LISTOBJECT_H
#define Py_LISTOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif
1990-12-20 11:06:42 -04:00
typedef struct {
PyObject_VAR_HEAD
2004-08-01 19:45:27 -03:00
/* Vector of pointers to list elements. list[0] is ob_item[0], etc. */
PyObject **ob_item;
/* ob_item contains space for 'allocated' elements. The number
* currently in use is ob_size.
* Invariants:
* 0 <= ob_size <= allocated
* len(list) == ob_size
* ob_item == NULL implies ob_size == allocated == 0
* list.sort() temporarily sets allocated to -1 to detect mutations.
*
* Items must normally not be NULL, except during construction when
* the list is not yet visible outside the function that builds it.
*/
2006-02-15 13:27:45 -04:00
Py_ssize_t allocated;
} PyListObject;
1990-12-20 11:06:42 -04:00
PyAPI_DATA(PyTypeObject) PyList_Type;
1990-10-14 09:07:46 -03:00
#define PyList_Check(op) \
PyType_FastSubclass((op)->ob_type, Py_TPFLAGS_LIST_SUBCLASS)
#define PyList_CheckExact(op) ((op)->ob_type == &PyList_Type)
1990-10-14 09:07:46 -03:00
2006-02-15 13:27:45 -04:00
PyAPI_FUNC(PyObject *) PyList_New(Py_ssize_t size);
PyAPI_FUNC(Py_ssize_t) PyList_Size(PyObject *);
PyAPI_FUNC(PyObject *) PyList_GetItem(PyObject *, Py_ssize_t);
PyAPI_FUNC(int) PyList_SetItem(PyObject *, Py_ssize_t, PyObject *);
PyAPI_FUNC(int) PyList_Insert(PyObject *, Py_ssize_t, PyObject *);
PyAPI_FUNC(int) PyList_Append(PyObject *, PyObject *);
2006-02-15 13:27:45 -04:00
PyAPI_FUNC(PyObject *) PyList_GetSlice(PyObject *, Py_ssize_t, Py_ssize_t);
PyAPI_FUNC(int) PyList_SetSlice(PyObject *, Py_ssize_t, Py_ssize_t, PyObject *);
PyAPI_FUNC(int) PyList_Sort(PyObject *);
PyAPI_FUNC(int) PyList_Reverse(PyObject *);
PyAPI_FUNC(PyObject *) PyList_AsTuple(PyObject *);
PyAPI_FUNC(PyObject *) _PyList_Extend(PyListObject *, PyObject *);
1990-12-20 11:06:42 -04:00
/* Macro, trading safety for speed */
#define PyList_GET_ITEM(op, i) (((PyListObject *)(op))->ob_item[i])
#define PyList_SET_ITEM(op, i, v) (((PyListObject *)(op))->ob_item[i] = (v))
#define PyList_GET_SIZE(op) (((PyListObject *)(op))->ob_size)
#ifdef __cplusplus
}
#endif
#endif /* !Py_LISTOBJECT_H */