When overloading an operator to support a user-defined type (object), it is best to adhere to the basic semantics of that built-in operator. For instance, the built-in operator ==, which does not modify any of its operands, should also be overloaded in such a way that it does not modify
Standard C++ supports a built-in Boolean type: Bool. Variables of this type are can be assigned either a true or false values exclusively ( true and false are now reserved keywords in the laguage) and are at least as efficient as any other primitive type such as char or int.
Both standard C and Standard C++ support struct assignment using = . In fact, C++ programmers are often surprised to discover that assignment operator applies also to plain structs, and not just to objects, and C programmers are even more puzzled to discover they don