| Olivier Deprez | f4ef2d0 | 2021-04-20 13:36:24 +0200 | [diff] [blame] | 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_IS_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 | Py_DEPRECATED(3.7) |
| 44 | PyAPI_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)) |
| 55 | PyAPI_FUNC(int) PySlice_Unpack(PyObject *slice, |
| 56 | Py_ssize_t *start, Py_ssize_t *stop, Py_ssize_t *step); |
| 57 | PyAPI_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 */ |