#ifndef Py_BUFFER_H

#define Py_BUFFER_H

#ifdef __cplusplus

extern "C" {

#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x030b0000

typedef struct {

void *buf;

PyObject *obj; /* owned reference */

Py_ssize_t len;

Py_ssize_t itemsize; /* This is Py_ssize_t so it can be

int readonly;

int ndim;

char *format;

Py_ssize_t *shape;

Py_ssize_t *strides;

Py_ssize_t *suboffsets;

void *internal;

} Py_buffer;

typedef int (*getbufferproc)(PyObject *, Py_buffer *, int);

typedef void (*releasebufferproc)(PyObject *, Py_buffer *);

PyAPI_FUNC(int) PyObject_CheckBuffer(PyObject *obj);

PyAPI_FUNC(int) PyObject_GetBuffer(PyObject *obj, Py_buffer *view,

int flags);

PyAPI_FUNC(void *) PyBuffer_GetPointer(const Py_buffer *view, const Py_ssize_t *indices);

PyAPI_FUNC(Py_ssize_t) PyBuffer_SizeFromFormat(const char *format);

PyAPI_FUNC(int) PyBuffer_ToContiguous(void *buf, const Py_buffer *view,

Py_ssize_t len, char order);

PyAPI_FUNC(int) PyBuffer_FromContiguous(const Py_buffer *view, const void *buf,

Py_ssize_t len, char order);

PyAPI_FUNC(int) PyObject_CopyData(PyObject *dest, PyObject *src);

PyAPI_FUNC(int) PyBuffer_IsContiguous(const Py_buffer *view, char fort);

PyAPI_FUNC(void) PyBuffer_FillContiguousStrides(int ndims,

char fort);

PyAPI_FUNC(int) PyBuffer_FillInfo(Py_buffer *view, PyObject *o, void *buf,

Py_ssize_t len, int readonly,

int flags);

PyAPI_FUNC(void) PyBuffer_Release(Py_buffer *view);

#define PyBUF_MAX_NDIM 64

#define PyBUF_SIMPLE 0

#define PyBUF_WRITABLE 0x0001

#ifndef Py_LIMITED_API

#define PyBUF_WRITEABLE PyBUF_WRITABLE

#define PyBUF_FORMAT 0x0004

#define PyBUF_ND 0x0008

#define PyBUF_STRIDES (0x0010 | PyBUF_ND)

#define PyBUF_C_CONTIGUOUS (0x0020 | PyBUF_STRIDES)

#define PyBUF_F_CONTIGUOUS (0x0040 | PyBUF_STRIDES)

#define PyBUF_ANY_CONTIGUOUS (0x0080 | PyBUF_STRIDES)

#define PyBUF_INDIRECT (0x0100 | PyBUF_STRIDES)

#define PyBUF_CONTIG (PyBUF_ND | PyBUF_WRITABLE)

#define PyBUF_CONTIG_RO (PyBUF_ND)

#define PyBUF_STRIDED (PyBUF_STRIDES | PyBUF_WRITABLE)

#define PyBUF_STRIDED_RO (PyBUF_STRIDES)

#define PyBUF_RECORDS (PyBUF_STRIDES | PyBUF_WRITABLE | PyBUF_FORMAT)

#define PyBUF_RECORDS_RO (PyBUF_STRIDES | PyBUF_FORMAT)

#define PyBUF_FULL (PyBUF_INDIRECT | PyBUF_WRITABLE | PyBUF_FORMAT)

#define PyBUF_FULL_RO (PyBUF_INDIRECT | PyBUF_FORMAT)

#define PyBUF_READ 0x100

#define PyBUF_WRITE 0x200

#endif /* !Py_LIMITED_API || Py_LIMITED_API >= 3.11 */

#ifdef __cplusplus

}

#endif /* Py_BUFFER_H */