What is the importance of mutable keyword?
- The mutable keyword allows the data member of a class to change within a const member function.
- It allows to assign the values to a data member belonging to a class defined as “Const” or constant.
- It allows a const pointer to change members.
- It can be only applied to non-static and non-const data members of a class.
Syntax:mutable data_member_variable_declaration;
