November 2, 2009 Communication channels var c chan string; c = make(chan string); c <- "Hello"; // infix send // in a different goroutine greeting := <-c; // prefix receive cc := new(chan chan string);

unary operator works on one value (postfix), a binary operator works on two values or operands (infix). The two values for a binary operator must be of the same type. Go does not implicitly convert the channel (sending): ch <- int1 means: variable int1 is sent through the channel ch (binary operator, infix = send) From a channel (receiving), 3 forms: int2 = <- ch means: variable int2 receives data (gets function which returns a new object and does not modify its parameters, like + and *. In C++, special infix operators (+, -, *, etc) can be overloaded to support math-like syntax, but apart from a few special

// ++ and -- are not regexp preceders, but + and - are whether 38 // they are used as infix or prefix operators. 39 start := n - 1 40 // Count the number of adjacent dashes