Function polars_arrow::kernels::take_agg::take_agg_primitive_iter_unchecked_count_nulls

pub unsafe fn take_agg_primitive_iter_unchecked_count_nulls<T: NativeType + ToPrimitive, TOut: NumCast + NativeType, I: IntoIterator<Item = usize>, F: Fn(TOut, TOut) -> TOut>(
    arr: &PrimitiveArray<T>,
    indices: I,
    f: F,
    init: TOut,
    len: IdxSize
) -> Option<(TOut, IdxSize)>

Take kernel for single chunk and an iterator as index.

Safety

caller must enure iterators indexes are in bounds