summaryrefslogtreecommitdiffstats
path: root/Include/tupleobject.h
blob: a02e66073698773f9a0c11e93ce9187dc379f3f9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
#ifndef Py_TUPLEOBJECT_H
#define Py_TUPLEOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif

/***********************************************************
Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
The Netherlands.

                        All Rights Reserved

Copyright (c) 2000, BeOpen.com.
Copyright (c) 1995-2000, Corporation for National Research Initiatives.
Copyright (c) 1990-1995, Stichting Mathematisch Centrum.
All rights reserved.

See the file "Misc/COPYRIGHT" for information on usage and
redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.

******************************************************************/

/* Tuple object interface */

/*
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 Py_PROTO((int size));
extern DL_IMPORT(int) PyTuple_Size Py_PROTO((PyObject *));
extern DL_IMPORT(PyObject *) PyTuple_GetItem Py_PROTO((PyObject *, int));
extern DL_IMPORT(int) PyTuple_SetItem Py_PROTO((PyObject *, int, PyObject *));
extern DL_IMPORT(PyObject *) PyTuple_GetSlice Py_PROTO((PyObject *, int, int));
extern DL_IMPORT(int) _PyTuple_Resize Py_PROTO((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 */