Complete Modern C++ - Operator Overloading - Part VII (Rules)

The video tutorial explains operator overloading in C, emphasizing that the basic behavior of operators should remain unchanged when overloaded. It highlights special cases like the 'new' and 'delete' operators, which are overloaded under specific circumstances. The tutorial outlines rules for overloading, such as requiring one operand to be a user-defined type and the need for global functions when the first argument is a primitive type. It also lists operators that cannot be overloaded due to potential confusion or disruption of basic features. Finally, it stresses the importance of maintaining conventional behavior to avoid user confusion.

What remains unchanged when an operator is overloaded?

• The data type of the operands

• The syntax of the operator

• The memory allocation process

• The basic behavior, such as precedence and operand count

Which operators are exceptions to the rule that overloaded operator functions should be non-static?

• Addition and subtraction

• New and delete

• Assignment and equality

• Multiplication and division

What is required for an operator that accepts more than one argument to be overloaded?

• All operands must be primitive types

• One operand must be a user-defined type

• The operator must be a global function

• The operator must be a unary operator

If a binary operator's first argument is a primitive type, how should it be overloaded?

• As a static function

• As a friend function

• As a member function

• As a global function

Why are certain operators not allowed to be overloaded in C?

• They are too complex to implement

• Overloading them could cause confusion or disrupt basic features

• They are reserved for system-level operations

• They are not used frequently enough