today, I was working on writing embedded code for the pinetime (open source smart watch). specifically, I was hacking the InfiniTime firmware to bend it to my will.
where, hacking means to repurpose something in a way that the designer did not intend.
a cool C idiom:
bool Kyo::OnTouchEvent(uint16_t /*touchx*/, uint16_t /*touchy*/).
That is, if you aren't going to use the variable in the function, you can comment it out. The compiler is still happy when you do this.