bit notme(bit B) { return !B; }

Using the -w switch, the compiler says that the expression (!B) is of type int and is implicitly converted to bit.

Using "~B" instead won't raise the warning, since "~" is a bitwise operator as opposed to the logical "!" operator. But if bit is being supported as a boolean type with logical true/false values, "!B" shouldn't cause a conversion to int, should it?