Why does i|= j|= k|= (j+= i) - - (k+++k) - - (i =+j) == 11?

Question

I came across this code in a project I have started working on. The original developer is no longer available, and I can\'t make any sense of it:

Answer 1

Your program invokes undefined behavior in C. You are modifying i and j more than one time between two sequence points.

In Java and JavaScript the behavior is well-defined, and you have to look at the precedence and associativity of the operators.