Assigning function to a variable in C++

In C++, assigning a function to a variable and using that variable for calling the function as many times as the user wants, increases the code reusability. Below is the syntax for the same:

Syntax:

C++

Program 1: Below is the C++ program to implement a function assigned to a variable:

C++

Inside Function Variable

Program 2: Below is the C++ program to implement a parameterized function assigned to a variable:

C++

Output:

Parameterized Function

Program 3: Below is the C++ program to implement a function assigned to a variable that returns a value:

C++

The sum is: 9

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