pub fn len_str<'a, T: Integer + Copy>(
input: StringAVT<'a, T>,
) -> Result<IntegerArray<T>, KernelError>Expand description
Computes the character length of each string in a StringArray<T> slice,
returning an IntegerArray<T> with the same length and null semantics.
This applies to a windowed slice (offset, len) of the input array.
The output null mask mirrors the sliced portion of the input mask.
§Parameters
input: A(StringArray<T>, offset, len)tuple defining the slice to operate on.
§Returns
An IntegerArray<T> of the same length, with each element representing the character count
of the corresponding (non-null) string value.