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mirror of https://github.com/python/cpython.git synced 2024-11-28 08:20:55 +01:00
cpython/Include/tupleobject.h
Guido van Rossum 8586991099 REMOVED all CWI, CNRI and BeOpen copyright markings.
This should match the situation in the 1.6b1 tree.
2000-09-01 23:29:29 +00:00

49 lines
1.5 KiB
C

/* Tuple object interface */
#ifndef Py_TUPLEOBJECT_H
#define Py_TUPLEOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif
/*
Another generally useful object type is an tuple of object pointers.
This is a mutable type: the tuple items can be changed (but not their
number). Out-of-range indices or non-tuple objects are ignored.
*** WARNING *** PyTuple_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 tuple. Similarly, PyTuple_GetItem does not increment the
returned item's reference count.
*/
typedef struct {
PyObject_VAR_HEAD
PyObject *ob_item[1];
} PyTupleObject;
extern DL_IMPORT(PyTypeObject) PyTuple_Type;
#define PyTuple_Check(op) ((op)->ob_type == &PyTuple_Type)
extern DL_IMPORT(PyObject *) PyTuple_New(int size);
extern DL_IMPORT(int) PyTuple_Size(PyObject *);
extern DL_IMPORT(PyObject *) PyTuple_GetItem(PyObject *, int);
extern DL_IMPORT(int) PyTuple_SetItem(PyObject *, int, PyObject *);
extern DL_IMPORT(PyObject *) PyTuple_GetSlice(PyObject *, int, int);
extern DL_IMPORT(int) _PyTuple_Resize(PyObject **, int, int);
/* Macro, trading safety for speed */
#define PyTuple_GET_ITEM(op, i) (((PyTupleObject *)(op))->ob_item[i])
#define PyTuple_GET_SIZE(op) (((PyTupleObject *)(op))->ob_size)
/* Macro, *only* to be used to fill in brand new tuples */
#define PyTuple_SET_ITEM(op, i, v) (((PyTupleObject *)(op))->ob_item[i] = v)
#ifdef __cplusplus
}
#endif
#endif /* !Py_TUPLEOBJECT_H */