#ifndef Py_CPYTHON_BYTEARRAYOBJECT_H

#  error "this header file must not be included directly"

#endif

/* Object layout */

typedef struct {

    PyObject_VAR_HEAD

    Py_ssize_t ob_alloc;   /* How many bytes allocated in ob_bytes */

    char *ob_bytes;        /* Physical backing buffer */

    char *ob_start;        /* Logical start inside ob_bytes */

    Py_ssize_t ob_exports; /* How many buffer exports */

} PyByteArrayObject;

PyAPI_DATA(char) _PyByteArray_empty_string[];

/* Macros and static inline functions, trading safety for speed */

#define _PyByteArray_CAST(op) \

    (assert(PyByteArray_Check(op)), _Py_CAST(PyByteArrayObject*, op))

static inline char* PyByteArray_AS_STRING(PyObject *op)

{

    PyByteArrayObject *self = _PyByteArray_CAST(op);

    if (Py_SIZE(self)) {

        return self->ob_start;

    }

    return _PyByteArray_empty_string;

}

#define PyByteArray_AS_STRING(self) PyByteArray_AS_STRING(_PyObject_CAST(self))

static inline Py_ssize_t PyByteArray_GET_SIZE(PyObject *op) {

    PyByteArrayObject *self = _PyByteArray_CAST(op);

#ifdef Py_GIL_DISABLED

    return _Py_atomic_load_ssize_relaxed(&(_PyVarObject_CAST(self)->ob_size));

#else

    return Py_SIZE(self);

#endif

}

#define PyByteArray_GET_SIZE(self) PyByteArray_GET_SIZE(_PyObject_CAST(self))