jpayne@69: #ifndef Py_SLICEOBJECT_H
jpayne@69: #define Py_SLICEOBJECT_H
jpayne@69: #ifdef __cplusplus
jpayne@69: extern "C" {
jpayne@69: #endif
jpayne@69: 
jpayne@69: /* The unique ellipsis object "..." */
jpayne@69: 
jpayne@69: PyAPI_DATA(PyObject) _Py_EllipsisObject; /* Don't use this directly */
jpayne@69: 
jpayne@69: #define Py_Ellipsis (&_Py_EllipsisObject)
jpayne@69: 
jpayne@69: /* Slice object interface */
jpayne@69: 
jpayne@69: /*
jpayne@69: 
jpayne@69: A slice object containing start, stop, and step data members (the
jpayne@69: names are from range).  After much talk with Guido, it was decided to
jpayne@69: let these be any arbitrary python type.  Py_None stands for omitted values.
jpayne@69: */
jpayne@69: #ifndef Py_LIMITED_API
jpayne@69: typedef struct {
jpayne@69:     PyObject_HEAD
jpayne@69:     PyObject *start, *stop, *step;      /* not NULL */
jpayne@69: } PySliceObject;
jpayne@69: #endif
jpayne@69: 
jpayne@69: PyAPI_DATA(PyTypeObject) PySlice_Type;
jpayne@69: PyAPI_DATA(PyTypeObject) PyEllipsis_Type;
jpayne@69: 
jpayne@69: #define PySlice_Check(op) (Py_TYPE(op) == &PySlice_Type)
jpayne@69: 
jpayne@69: PyAPI_FUNC(PyObject *) PySlice_New(PyObject* start, PyObject* stop,
jpayne@69:                                   PyObject* step);
jpayne@69: #ifndef Py_LIMITED_API
jpayne@69: PyAPI_FUNC(PyObject *) _PySlice_FromIndices(Py_ssize_t start, Py_ssize_t stop);
jpayne@69: PyAPI_FUNC(int) _PySlice_GetLongIndices(PySliceObject *self, PyObject *length,
jpayne@69:                                  PyObject **start_ptr, PyObject **stop_ptr,
jpayne@69:                                  PyObject **step_ptr);
jpayne@69: #endif
jpayne@69: PyAPI_FUNC(int) PySlice_GetIndices(PyObject *r, Py_ssize_t length,
jpayne@69:                                   Py_ssize_t *start, Py_ssize_t *stop, Py_ssize_t *step);
jpayne@69: Py_DEPRECATED(3.7)
jpayne@69: PyAPI_FUNC(int) PySlice_GetIndicesEx(PyObject *r, Py_ssize_t length,
jpayne@69:                                      Py_ssize_t *start, Py_ssize_t *stop,
jpayne@69:                                      Py_ssize_t *step,
jpayne@69:                                      Py_ssize_t *slicelength);
jpayne@69: 
jpayne@69: #if !defined(Py_LIMITED_API) || (Py_LIMITED_API+0 >= 0x03050400 && Py_LIMITED_API+0 < 0x03060000) || Py_LIMITED_API+0 >= 0x03060100
jpayne@69: #define PySlice_GetIndicesEx(slice, length, start, stop, step, slicelen) (  \
jpayne@69:     PySlice_Unpack((slice), (start), (stop), (step)) < 0 ?                  \
jpayne@69:     ((*(slicelen) = 0), -1) :                                               \
jpayne@69:     ((*(slicelen) = PySlice_AdjustIndices((length), (start), (stop), *(step))), \
jpayne@69:      0))
jpayne@69: PyAPI_FUNC(int) PySlice_Unpack(PyObject *slice,
jpayne@69:                                Py_ssize_t *start, Py_ssize_t *stop, Py_ssize_t *step);
jpayne@69: PyAPI_FUNC(Py_ssize_t) PySlice_AdjustIndices(Py_ssize_t length,
jpayne@69:                                              Py_ssize_t *start, Py_ssize_t *stop,
jpayne@69:                                              Py_ssize_t step);
jpayne@69: #endif
jpayne@69: 
jpayne@69: #ifdef __cplusplus
jpayne@69: }
jpayne@69: #endif
jpayne@69: #endif /* !Py_SLICEOBJECT_H */