type Xnor<L, R> = Not<Xor<L, R>>;
Xnor
s two Booleans
This type alias takes Boolean parameters and evaluates to
either True or False.
assert_eq!(Xnor::<True ,True >::VALUE,true);
assert_eq!(Xnor::<False,True >::VALUE,false);
assert_eq!(Xnor::<True ,False>::VALUE,false);
assert_eq!(Xnor::<False,False>::VALUE,true);