1#ifndef Py_SLICEOBJECT_H 2#define Py_SLICEOBJECT_H 3#ifdef __cplusplus 4extern "C" { 5#endif 6 7/* The unique ellipsis object "..." */ 8 9PyAPI_DATA(PyObject) _Py_EllipsisObject; /* Don't use this directly */ 10 11#define Py_Ellipsis (&_Py_EllipsisObject) 12 13/* Slice object interface */ 14 15/* 16 17A slice object containing start, stop, and step data members (the 18names are from range). After much talk with Guido, it was decided to 19let these be any arbitrary python type. Py_None stands for omitted values. 20*/ 21#ifndef Py_LIMITED_API 22typedef struct { 23 PyObject_HEAD 24 PyObject *start, *stop, *step; /* not NULL */ 25} PySliceObject; 26#endif 27 28PyAPI_DATA(PyTypeObject) PySlice_Type; 29PyAPI_DATA(PyTypeObject) PyEllipsis_Type; 30 31#define PySlice_Check(op) Py_IS_TYPE(op, &PySlice_Type) 32 33PyAPI_FUNC(PyObject *) PySlice_New(PyObject* start, PyObject* stop, 34 PyObject* step); 35#ifndef Py_LIMITED_API 36PyAPI_FUNC(PyObject *) _PySlice_FromIndices(Py_ssize_t start, Py_ssize_t stop); 37PyAPI_FUNC(int) _PySlice_GetLongIndices(PySliceObject *self, PyObject *length, 38 PyObject **start_ptr, PyObject **stop_ptr, 39 PyObject **step_ptr); 40#endif 41PyAPI_FUNC(int) PySlice_GetIndices(PyObject *r, Py_ssize_t length, 42 Py_ssize_t *start, Py_ssize_t *stop, Py_ssize_t *step); 43Py_DEPRECATED(3.7) 44PyAPI_FUNC(int) PySlice_GetIndicesEx(PyObject *r, Py_ssize_t length, 45 Py_ssize_t *start, Py_ssize_t *stop, 46 Py_ssize_t *step, 47 Py_ssize_t *slicelength); 48 49#if !defined(Py_LIMITED_API) || (Py_LIMITED_API+0 >= 0x03050400 && Py_LIMITED_API+0 < 0x03060000) || Py_LIMITED_API+0 >= 0x03060100 50#define PySlice_GetIndicesEx(slice, length, start, stop, step, slicelen) ( \ 51 PySlice_Unpack((slice), (start), (stop), (step)) < 0 ? \ 52 ((*(slicelen) = 0), -1) : \ 53 ((*(slicelen) = PySlice_AdjustIndices((length), (start), (stop), *(step))), \ 54 0)) 55PyAPI_FUNC(int) PySlice_Unpack(PyObject *slice, 56 Py_ssize_t *start, Py_ssize_t *stop, Py_ssize_t *step); 57PyAPI_FUNC(Py_ssize_t) PySlice_AdjustIndices(Py_ssize_t length, 58 Py_ssize_t *start, Py_ssize_t *stop, 59 Py_ssize_t step); 60#endif 61 62#ifdef __cplusplus 63} 64#endif 65#endif /* !Py_SLICEOBJECT_H */ 66