Macro then_else 

macro_rules! then_else {
    ($v:tt, $($body:tt)*) => { ... };
}

else clauses for the then! macro

Meant to be used in a postfix context. The then! macro would serve as the postfix analog of if, while this macro would be the postfix analog of else.

let mut w = 0;
for i in 1..10 {
	w += i;
	(w % i == 0)
		.then!{ w += i * i }
		.then_else!{ w += 1 };
}
assert_eq!(w, 181);