Guido van Rossum | a330996 | 1993-07-28 09:05:47 +0000 | [diff] [blame] | 1 | #ifndef Py_STRUCTMEMBER_H |
| 2 | #define Py_STRUCTMEMBER_H |
| 3 | #ifdef __cplusplus |
| 4 | extern "C" { |
| 5 | #endif |
| 6 | |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 7 | /*********************************************************** |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 8 | Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum, |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 9 | Amsterdam, The Netherlands. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 10 | |
| 11 | All Rights Reserved |
| 12 | |
| 13 | Permission to use, copy, modify, and distribute this software and its |
| 14 | documentation for any purpose and without fee is hereby granted, |
| 15 | provided that the above copyright notice appear in all copies and that |
| 16 | both that copyright notice and this permission notice appear in |
| 17 | supporting documentation, and that the names of Stichting Mathematisch |
| 18 | Centrum or CWI not be used in advertising or publicity pertaining to |
| 19 | distribution of the software without specific, written prior permission. |
| 20 | |
| 21 | STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO |
| 22 | THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| 23 | FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE |
| 24 | FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 25 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 26 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT |
| 27 | OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 28 | |
| 29 | ******************************************************************/ |
| 30 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 31 | /* Interface to map C struct members to Python object attributes */ |
| 32 | |
| 33 | /* The offsetof() macro calculates the offset of a structure member |
| 34 | in its structure. Unfortunately this cannot be written down |
| 35 | portably, hence it is provided by a Standard C header file. |
| 36 | For pre-Standard C compilers, here is a version that usually works |
| 37 | (but watch out!): */ |
| 38 | |
| 39 | #ifndef offsetof |
| 40 | #define offsetof(type, member) ( (int) & ((type*)0) -> member ) |
| 41 | #endif |
| 42 | |
| 43 | /* An array of memberlist structures defines the name, type and offset |
| 44 | of selected members of a C structure. These can be read by |
| 45 | getmember() and set by setmember() (except if their READONLY flag |
| 46 | is set). The array must be terminated with an entry whose name |
| 47 | pointer is NULL. */ |
| 48 | |
| 49 | struct memberlist { |
| 50 | char *name; |
| 51 | int type; |
| 52 | int offset; |
| 53 | int readonly; |
| 54 | }; |
| 55 | |
| 56 | /* Types */ |
| 57 | #define T_SHORT 0 |
| 58 | #define T_INT 1 |
| 59 | #define T_LONG 2 |
| 60 | #define T_FLOAT 3 |
| 61 | #define T_DOUBLE 4 |
| 62 | #define T_STRING 5 |
| 63 | #define T_OBJECT 6 |
Guido van Rossum | 0002395 | 1992-06-03 17:07:40 +0000 | [diff] [blame] | 64 | /* XXX the ordering here is weird for binary compatibility */ |
| 65 | #define T_CHAR 7 /* 1-character string */ |
| 66 | #define T_BYTE 8 /* 8-bit signed int */ |
| 67 | /* unsigned variants: */ |
| 68 | #define T_UBYTE 9 |
| 69 | #define T_USHORT 10 |
| 70 | #define T_UINT 11 |
| 71 | #define T_ULONG 12 |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 72 | |
| 73 | /* Readonly flag */ |
| 74 | #define READONLY 1 |
| 75 | #define RO READONLY /* Shorthand */ |
| 76 | |
| 77 | object *getmember PROTO((char *, struct memberlist *, char *)); |
| 78 | int setmember PROTO((char *, struct memberlist *, char *, object *)); |
Guido van Rossum | a330996 | 1993-07-28 09:05:47 +0000 | [diff] [blame] | 79 | |
| 80 | #ifdef __cplusplus |
| 81 | } |
| 82 | #endif |
| 83 | #endif /* !Py_STRUCTMEMBER_H */ |