The number of bytes necessary is incredibly important for security reasons. It's arguably better to make the number of bytes be the primary value and have a se

The number of bytes necessary is incredibly important for security reasons. It's arguably better to make the number of bytes be the primary value and have a secondary lookup be the number of glyphs. To be fair, some systems distinguish between size and length (with size expected to be O(1) and length allowed to be up to O(n)). For those systems proceed as parent.