BOOLony

So i am pretty sure my C++ teacher is bullshitting us...Do the "pros" use Truth Tables?

What kind of truth tables? More involved ones like Karnaugh maps? Corner cases in logic that aren't easily solvable? Logic design? Yes, sometimes.

Or do you mean things like for AND, OR, XOR, NAND, NOT, etc? No, of course not, any real coder can do that pretty much unconsciously.