Function read_byte_array_extending_nonnegative

src/repr/src/row.rs:1315–1320

Read `length` bytes from `data` at `offset`, updating the latter. Extend the resulting buffer to a positive or zero `N`-byte twos complement integer by filling the remaining bits with 0. SAFETY: length <= N offset + length <= data.len()

(
    data: &mut &[u8],
    length: usize,
)

///   * length <= N
///   * offset + length <= data.len()
fn read_byte_array_extending_nonnegative<const N: usize>(
    data: &mut &[u8],
    length: usize,
) -> [u8; N] {
    read_byte_array_sign_extending::<N, 0>(data, length)
}

pub(super) fn read_byte_array<const N: usize>(data: &mut &[u8]) -> [u8; N] {
    let (prev, next) = data.split_first_chunk().unwrap();