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annotate Include/listobject.h @ 4566:6403c94de50d legacy-trunk

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Added safeguard against failure in __del__.
author Guido van Rossum <guido@python.org>
date Wed, 27 Nov 1996 19:39:58 +0000
parents 65d2d8e67da3
children 50abb0850740
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1 #ifndef Py_LISTOBJECT_H
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2 #define Py_LISTOBJECT_H
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3 #ifdef __cplusplus
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4 extern "C" {
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5 #endif
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6
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7 /***********************************************************
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8 Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
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9 The Netherlands.
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10
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11 All Rights Reserved
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12
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13 Permission to use, copy, modify, and distribute this software and its
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14 documentation for any purpose and without fee is hereby granted,
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15 provided that the above copyright notice appear in all copies and that
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16 both that copyright notice and this permission notice appear in
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17 supporting documentation, and that the names of Stichting Mathematisch
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18 Centrum or CWI or Corporation for National Research Initiatives or
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19 CNRI not be used in advertising or publicity pertaining to
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20 distribution of the software without specific, written prior
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21 permission.
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22
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23 While CWI is the initial source for this software, a modified version
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24 is made available by the Corporation for National Research Initiatives
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25 (CNRI) at the Internet address ftp://ftp.python.org.
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26
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27 STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
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28 REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
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29 MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
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30 CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
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31 DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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32 PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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33 TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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34 PERFORMANCE OF THIS SOFTWARE.
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35
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36 ******************************************************************/
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37
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38 /* List object interface */
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39
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40 /*
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41 123456789-123456789-123456789-123456789-123456789-123456789-123456789-12
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42
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43 Another generally useful object type is an list of object pointers.
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44 This is a mutable type: the list items can be changed, and items can be
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45 added or removed. Out-of-range indices or non-list objects are ignored.
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46
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47 *** WARNING *** PyList_SetItem does not increment the new item's reference
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48 count, but does decrement the reference count of the item it replaces,
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49 if not nil. It does *decrement* the reference count if it is *not*
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50 inserted in the list. Similarly, PyList_GetItem does not increment the
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51 returned item's reference count.
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52 */
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54 typedef struct {
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55 PyObject_VAR_HEAD
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56 PyObject **ob_item;
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57 } PyListObject;
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58
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59 extern DL_IMPORT(PyTypeObject) PyList_Type;
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61 #define PyList_Check(op) ((op)->ob_type == &PyList_Type)
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62
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63 extern PyObject *PyList_New Py_PROTO((int size));
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64 extern int PyList_Size Py_PROTO((PyObject *));
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65 extern PyObject *PyList_GetItem Py_PROTO((PyObject *, int));
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66 extern int PyList_SetItem Py_PROTO((PyObject *, int, PyObject *));
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67 extern int PyList_Insert Py_PROTO((PyObject *, int, PyObject *));
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68 extern int PyList_Append Py_PROTO((PyObject *, PyObject *));
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69 extern PyObject *PyList_GetSlice Py_PROTO((PyObject *, int, int));
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70 extern int PyList_SetSlice Py_PROTO((PyObject *, int, int, PyObject *));
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71 extern int PyList_Sort Py_PROTO((PyObject *));
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72 extern int PyList_Reverse Py_PROTO((PyObject *));
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73 extern PyObject *PyList_AsTuple Py_PROTO((PyObject *));
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75 /* Macro, trading safety for speed */
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76 #define PyList_GET_ITEM(op, i) ((op)->ob_item[i])
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78 #ifdef __cplusplus
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79 }
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80 #endif
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81 #endif /* !Py_LISTOBJECT_H */