Following are some rules to be followed while implementing operator overloading.
1. Precedence and Associativity of an operator cannot be changed.
2. No new operators can be created, only existing operators can be overloaded.
3. Cannot redefine the meaning of an operator’s procedure. You cannot change how integers are added. Only additional functions can be to an operator.
4. Overloaded operators cannot have default arguments.
5. When binary operators are overloaded, the left hand object must be an object of the relevant class.
