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annotate Include/structmember.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 60fdb1db1175
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1 #ifndef Py_STRUCTMEMBER_H
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2 #define Py_STRUCTMEMBER_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 /* Interface to map C struct members to Python object attributes */
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39
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40 #ifdef HAVE_STDDEF_H
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41 #include <stddef.h> /* For offsetof */
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42 #endif
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43
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44 /* The offsetof() macro calculates the offset of a structure member
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45 in its structure. Unfortunately this cannot be written down
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46 portably, hence it is provided by a Standard C header file.
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47 For pre-Standard C compilers, here is a version that usually works
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48 (but watch out!): */
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49
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50 #ifndef offsetof
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51 #define offsetof(type, member) ( (int) & ((type*)0) -> member )
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52 #endif
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53
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54 /* An array of memberlist structures defines the name, type and offset
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55 of selected members of a C structure. These can be read by
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56 PyMember_Get() and set by PyMember_Set() (except if their READONLY flag
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57 is set). The array must be terminated with an entry whose name
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58 pointer is NULL. */
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59
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60 struct memberlist {
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61 char *name;
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62 int type;
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63 int offset;
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64 int readonly;
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65 };
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66
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67 /* Types */
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68 #define T_SHORT 0
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69 #define T_INT 1
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70 #define T_LONG 2
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71 #define T_FLOAT 3
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72 #define T_DOUBLE 4
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73 #define T_STRING 5
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74 #define T_OBJECT 6
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75 /* XXX the ordering here is weird for binary compatibility */
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76 #define T_CHAR 7 /* 1-character string */
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77 #define T_BYTE 8 /* 8-bit signed int */
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78 /* unsigned variants: */
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79 #define T_UBYTE 9
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80 #define T_USHORT 10
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81 #define T_UINT 11
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82 #define T_ULONG 12
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83
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84 /* Added by Jack: strings contained in the structure */
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85 #define T_STRING_INPLACE 13
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86 #ifdef macintosh
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87 #define T_PSTRING 14 /* macintosh pascal-style counted string */
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88 #define T_PSTRING_INPLACE 15
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89 #endif /* macintosh */
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91 /* Readonly flag */
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92 #define READONLY 1
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93 #define RO READONLY /* Shorthand */
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94
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95 PyObject *PyMember_Get Py_PROTO((char *, struct memberlist *, char *));
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96 int PyMember_Set Py_PROTO((char *, struct memberlist *, char *, PyObject *));
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98 #ifdef __cplusplus
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99 }
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100 #endif
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101 #endif /* !Py_STRUCTMEMBER_H */