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- /* List object interface */
- /*
- Another generally useful object type is a 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
- 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
- returned item's reference count.
- */
- #ifndef Py_LISTOBJECT_H
- #define Py_LISTOBJECT_H
- #ifdef __cplusplus
- extern "C" {
- #endif
- typedef struct {
- PyObject_VAR_HEAD
- /* 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.
- */
- Py_ssize_t allocated;
- } PyListObject;
- PyAPI_DATA(PyTypeObject) PyList_Type;
- #define PyList_Check(op) \
- PyType_FastSubclass(Py_TYPE(op), Py_TPFLAGS_LIST_SUBCLASS)
- #define PyList_CheckExact(op) (Py_TYPE(op) == &PyList_Type)
- 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 *);
- 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 *);
- /* 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) Py_SIZE(op)
- #ifdef __cplusplus
- }
- #endif
- #endif /* !Py_LISTOBJECT_H */
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