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