Hi can someone explain the code and how it works I am not familiar with an enum written in this manner only in a manner that is much simpler like this

enum State {Working = 1, Failed = 0, Freezed = 0};

what exacly is going on here? this is in C programming. I believe they are using a function? and the method map above but I dont know what is exactly going on here?

Thank you senpai!

THIS IS C PROGRAMMING.