No, it's not a bug that they don't return the size of something that's not passed to them.
If anything, I would consider using either of those a bug. It's hard to imagine a reason to use them.
In reply to Re^6: Counting bytes in a Unicode document
by ikegami
in thread Counting bytes in a Unicode document
by jwkrahn
| For: | Use: | ||
| & | & | ||
| < | < | ||
| > | > | ||
| [ | [ | ||
| ] | ] |