cpython-withatomic / Include / structmember.h

The branch '2.4' does not exist.
#ifdef __cplusplus
extern "C" {

/* Interface to map C struct members to Python object attributes */

#include <stddef.h> /* For offsetof */

/* 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 )

/* 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
   is set).  The array must be terminated with an entry whose name
   pointer is NULL. */

struct memberlist {
	/* Obsolete version, for binary backwards compatibility */
	char *name;
	int type;
	int offset;
	int flags;

typedef struct PyMemberDef {
	/* Current version, use this */
	char *name;
	int type;
	int offset;
	int flags;
	char *doc;
} PyMemberDef;

/* 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
/* 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

/* Added by Jack: strings contained in the structure */

#define T_OBJECT_EX	16	/* Like T_OBJECT, but raises AttributeError
				   when the value is NULL, instead of
				   converting to None. */

/* Flags */
#define READONLY	1
#define RO		READONLY		/* Shorthand */

/* Obsolete API, for binary backwards compatibility */
PyAPI_FUNC(PyObject *) PyMember_Get(char *, struct memberlist *, char *);
PyAPI_FUNC(int) PyMember_Set(char *, struct memberlist *, char *, PyObject *);

/* Current API, use this */
PyAPI_FUNC(PyObject *) PyMember_GetOne(char *, struct PyMemberDef *);
PyAPI_FUNC(int) PyMember_SetOne(char *, struct PyMemberDef *, PyObject *);

#ifdef __cplusplus
#endif /* !Py_STRUCTMEMBER_H */
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