Thanks, so what about this usage-examples:
setbit(12,0,0)
Am I correct to say here that number 12, "position 0" has value 0?
setbit(12,0,1)
And here, number 12, position 1, has value 1?
But I still do not know when to use setbit().
I hope someone knows 1 or 2 context-examples so I understand it better.