Obviously, it's possible to fake them with numbers, but there's no particular reason that should be necessary.
Boolean constants
I'll have to check how I implemented integer constants, but this shouldn't be too difficult to add.
If you want, feel free to put them in yourself 😉
Maybe I'm missing something, but don't we already have boolean constants
i.e. "True" and "False?"
No, he's talking about constant variables which are boolean valued, ie,
const bool macs_suck=true;