#include <fstream.hfa>

enum() voidEnum {
    a, b, c
    /*** 
    * ,d = 10 // Disable; 
    * //error: Enumerator of enum(void) cannot have an explicit initial value.
    */
};

// void foo (const enum voidEnum & t){}

int main() {
    enum voidEnum v_1 = a;
    enum voidEnum v_2 = b;
    // foo(b);
    // enum voidEnum v_3 = 10;
    // Error as int cannot convert to void enum
    if ( v_1 == v_2 ) {
        sout | "Equal" | nl;
    } else {
        sout | "Not Equal" | nl;
    }
    sout | a | nl;
    sout | b | nl;
}