Why runtime polymorphism in c

In compile-time polymorphism, a function is called at the time of program compilation. We call this type of polymorphism as early binding or Static binding. Function overloading means one function can perform many tasks.

In the function overloading function will call at the time of program compilation. It is an example of compile-time polymorphism. In the below example, A function ADD is used to perform two tasks. The two asks would be to add two integer values and add two strings concatenate. Readability of the program increases by function overloading. It is achieved by using the same name for the same action. Operator overloading means defining additional tasks to operators without changing its actual meaning.

We do this by using operator function. The purpose of operator overloading is to provide a special meaning to the user-defined data types. In a Runtime polymorphism, functions are called at the time the program execution.

For example, we can easily raise salaries for all employees by iterating through the employee list. Output: In Derived. Output : In Derived. Output: promote Manager. Output : promote Manager. Rectangle rec.

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The students will get to learn more about the world of programming in these free classes which will definitely help them in making a wise career choice in the future. Compile time Polymorphism Runtime Polymorphism Compile time polymorphism : This type of polymorphism is achieved by function overloading or operator overloading.

We know that this is the addition operator whose task is to add two operands. To learn operator overloading in details visit this link. Runtime polymorphism : This type of polymorphism is achieved by Function Overriding. Function overriding on the other hand occurs when a derived class has a definition for one of the member functions of the base class. That base function is said to be overridden.

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