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#ifndef NUMPY_CORE_SRC_MULTIARRAY_DESCRIPTOR_H_
#define NUMPY_CORE_SRC_MULTIARRAY_DESCRIPTOR_H_
/*
* In some API calls we wish to allow users to pass a DType class or a
* dtype instances with different meanings.
* This struct is mainly used for the argument parsing in
* `PyArray_DTypeOrDescrConverter`.
*/
typedef struct {
PyArray_DTypeMeta *dtype;
PyArray_Descr *descr;
} npy_dtype_info;
NPY_NO_EXPORT int
PyArray_DTypeOrDescrConverterOptional(PyObject *, npy_dtype_info *dt_info);
NPY_NO_EXPORT int
PyArray_DTypeOrDescrConverterRequired(PyObject *, npy_dtype_info *dt_info);
NPY_NO_EXPORT int
PyArray_ExtractDTypeAndDescriptor(PyArray_Descr *dtype,
PyArray_Descr **out_descr, PyArray_DTypeMeta **out_DType);
NPY_NO_EXPORT PyObject *arraydescr_protocol_typestr_get(
PyArray_Descr *, void *);
NPY_NO_EXPORT PyObject *arraydescr_protocol_descr_get(
PyArray_Descr *self, void *);
/*
* offset: A starting offset.
* alignment: A power-of-two alignment.
*
* This macro returns the smallest value >= 'offset'
* that is divisible by 'alignment'. Because 'alignment'
* is a power of two and integers are twos-complement,
* it is possible to use some simple bit-fiddling to do this.
*/
#define NPY_NEXT_ALIGNED_OFFSET(offset, alignment) \
(((offset) + (alignment) - 1) & (-(alignment)))
NPY_NO_EXPORT PyObject *
array_set_typeDict(PyObject *NPY_UNUSED(ignored), PyObject *args);
NPY_NO_EXPORT PyArray_Descr *
_arraydescr_try_convert_from_dtype_attr(PyObject *obj);
NPY_NO_EXPORT int
is_dtype_struct_simple_unaligned_layout(PyArray_Descr *dtype);
/*
* Filter the fields of a dtype to only those in the list of strings, ind.
*
* No type checking is performed on the input.
*
* Raises:
* ValueError - if a field is repeated
* KeyError - if an invalid field name (or any field title) is used
*/
NPY_NO_EXPORT PyArray_Descr *
arraydescr_field_subset_view(PyArray_Descr *self, PyObject *ind);
extern NPY_NO_EXPORT char const *_datetime_strings[];
#endif /* NUMPY_CORE_SRC_MULTIARRAY_DESCRIPTOR_H_ */
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