How do you overload a unary operator?
You overload a unary operator with either a nonstatic member function that has no parameters, or a nonmember function that has one parameter. Suppose a unary operator @ is called with the statement @t, where t is an object of type T .
How to define overloaded operators?
?There are 3 ways to define overloaded operators: 1. Member function 2. Nonmember function 3. Friend function Member function ?The first way is by class method(member function). This is the most popular way. Many experts advocate always overloading operators as member operators rather than as nonmembers.
How to overload a binary operator for user-defined types?
Here, + is a binary operator that works on the operands num and 9. When we overload the binary operator for user-defined types by using the code: The operator function is called using the obj1 object and obj2 is passed as an argument to the function. Instead of this, we also could have written this function like:
What is an example of a unary operator?
Unary operators operate on only one operand. The increment operator ++ and decrement operator -- are examples of unary operators. Here, when we use ++count1;, the void operator ++ () is called. This increases the value attribute for the object count1 by 1.