Added ex9.c
Ignore ex* (executable) files that aren't C source
Goof with ints, chars, strings, arrays, bits

I don't comment in production code (because to me that means my code
isn't expressive enough and because comments go stale) but this isn't
production code and I'm just dorking around. Normally I wouldn't even
put comments in dorking around code but I'm _pretty_ sure this isn't
_EVAR_ going to be anything useful. Please shoot me if it does.