cpython/Include/structmember.h

72 lines
1.8 KiB
C
Raw Normal View History

#ifndef Py_STRUCTMEMBER_H
#define Py_STRUCTMEMBER_H
#ifdef __cplusplus
extern "C" {
#endif
1991-02-19 08:39:46 -04:00
1990-12-20 11:06:42 -04:00
/* Interface to map C struct members to Python object attributes */
1994-10-20 19:03:08 -03:00
#ifdef HAVE_STDDEF_H
#include <stddef.h> /* For offsetof */
#endif
1990-12-20 11:06:42 -04:00
/* The offsetof() macro calculates the offset of a structure member
in its structure. Unfortunately this cannot be written down
portably, hence it is provided by a Standard C header file.
For pre-Standard C compilers, here is a version that usually works
(but watch out!): */
#ifndef offsetof
#define offsetof(type, member) ( (int) & ((type*)0) -> member )
#endif
/* An array of memberlist structures defines the name, type and offset
of selected members of a C structure. These can be read by
PyMember_Get() and set by PyMember_Set() (except if their READONLY flag
1990-12-20 11:06:42 -04:00
is set). The array must be terminated with an entry whose name
pointer is NULL. */
struct memberlist {
char *name;
int type;
int offset;
int readonly;
};
/* Types */
#define T_SHORT 0
#define T_INT 1
#define T_LONG 2
#define T_FLOAT 3
#define T_DOUBLE 4
#define T_STRING 5
#define T_OBJECT 6
1992-06-03 14:07:40 -03:00
/* XXX the ordering here is weird for binary compatibility */
#define T_CHAR 7 /* 1-character string */
#define T_BYTE 8 /* 8-bit signed int */
/* unsigned variants: */
#define T_UBYTE 9
#define T_USHORT 10
#define T_UINT 11
#define T_ULONG 12
1990-12-20 11:06:42 -04:00
/* Added by Jack: strings contained in the structure */
#define T_STRING_INPLACE 13
#ifdef macintosh
#define T_PSTRING 14 /* macintosh pascal-style counted string */
#define T_PSTRING_INPLACE 15
#endif /* macintosh */
1990-12-20 11:06:42 -04:00
/* Readonly flag */
#define READONLY 1
#define RO READONLY /* Shorthand */
DL_IMPORT(PyObject *) PyMember_Get(char *, struct memberlist *, char *);
DL_IMPORT(int) PyMember_Set(char *, struct memberlist *, char *, PyObject *);
#ifdef __cplusplus
}
#endif
#endif /* !Py_STRUCTMEMBER_H */