1#ifndef Py_CPYTHON_BYTEARRAYOBJECT_H
2#  error "this header file must not be included directly"
3#endif
4
5/* Object layout */
6typedef struct {
7    PyObject_VAR_HEAD
8    Py_ssize_t ob_alloc;   /* How many bytes allocated in ob_bytes */
9    char *ob_bytes;        /* Physical backing buffer */
10    char *ob_start;        /* Logical start inside ob_bytes */
11    Py_ssize_t ob_exports; /* How many buffer exports */
12} PyByteArrayObject;
13
14PyAPI_DATA(char) _PyByteArray_empty_string[];
15
16/* Macros and static inline functions, trading safety for speed */
17#define _PyByteArray_CAST(op) \
18    (assert(PyByteArray_Check(op)), _Py_CAST(PyByteArrayObject*, op))
19
20static inline char* PyByteArray_AS_STRING(PyObject *op)
21{
22    PyByteArrayObject *self = _PyByteArray_CAST(op);
23    if (Py_SIZE(self)) {
24        return self->ob_start;
25    }
26    return _PyByteArray_empty_string;
27}
28#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 < 0x030b0000
29#  define PyByteArray_AS_STRING(self) PyByteArray_AS_STRING(_PyObject_CAST(self))
30#endif
31
32static inline Py_ssize_t PyByteArray_GET_SIZE(PyObject *op) {
33    PyByteArrayObject *self = _PyByteArray_CAST(op);
34    return Py_SIZE(self);
35}
36#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 < 0x030b0000
37#  define PyByteArray_GET_SIZE(self) PyByteArray_GET_SIZE(_PyObject_CAST(self))
38#endif
39