cpython/Include/cpython/memoryobject.h

#ifndef Py_CPYTHON_MEMORYOBJECT_H
#  error "this header file must not be included directly"
#endif

/* The structs are declared here so that macros can work, but they shouldn't
   be considered public. Don't access their fields directly, use the macros
   and functions instead! */
#define _Py_MANAGED_BUFFER_RELEASED …
#define _Py_MANAGED_BUFFER_FREE_FORMAT …

_PyManagedBufferObject;


/* memoryview state flags */
#define _Py_MEMORYVIEW_RELEASED …
#define _Py_MEMORYVIEW_C …
#define _Py_MEMORYVIEW_FORTRAN …
#define _Py_MEMORYVIEW_SCALAR …
#define _Py_MEMORYVIEW_PIL …
#define _Py_MEMORYVIEW_RESTRICTED …

PyMemoryViewObject;

#define _PyMemoryView_CAST(op) …

/* Get a pointer to the memoryview's private copy of the exporter's buffer. */
static inline Py_buffer* PyMemoryView_GET_BUFFER(PyObject *op) { … }
#define PyMemoryView_GET_BUFFER(op) …

/* Get a pointer to the exporting object (this may be NULL!). */
static inline PyObject* PyMemoryView_GET_BASE(PyObject *op) { … }
#define PyMemoryView_GET_BASE(op) …