cpython/Include/sliceobject.h
Serhiy Storchaka b2a5be0763 Issue #27867: Function PySlice_GetIndicesEx() is replaced with a macro if
Py_LIMITED_API is not set or set to the value between 0x03050400
and 0x03060000 (not including) or 0x03060100 or higher.
2017-01-25 13:23:05 +02:00

63 lines
2.3 KiB
C

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