That's a good catch!! Thank you, you are right. I (incorrectly) assumed that a single u64 could capture the entire bit_width-value read starting from byte_pos.

That's a good catch!! Thank you, you are right. I (incorrectly) assumed that a single u64 could capture the entire bit_width-value read starting from byte_pos. However, as you said, this assumption breaks for some large bit widths. I already patched it, thanks again.