Seriously helpful thanks! One of my friends working on a G15 restoration project pointed out this notation to be after you did— yet while they use 0 for truth they used 20 for false so not sure were they got the second idea. And your vim tip saved me a bunch of hand ache!

Yeah that’s fair— this is my focus workstation so don’t have any messaging apps or email to send the screenshot but def could have taken a second picture.

I guess in reading not until c99(see other comment); they just used integers in place of Booleans, in which case your readability statement makes more sense given the historical context

I’m not sure I understand readability? I guess is disambiguates numeric variables if you used 1 and 0. But with true and false available that would seemingly do the same thing. You still have to know what the arguments your passing are for regardless.

Ahh this makes some sense