Restriction on Operator Overloading

Cannot change:
1. Precedence of operator (order of evaluation)

• Use parentheses to force an order of operators.

2. Associativity (left-to-right or right-to-left)
3. Number of operands

• e.g., & is unary, can only act on one operand.

4. How operators act on built-in data types (i.e., cannot change integer addition).

• Cannot create new operators.
• Operators must be overloaded explicitly.

5. Overloading + and = does not overload +=