What is a “static” function in C?

A static function is one that can be called on the class itself, as opposed to an instance of the class.

For example a non-static would be:

Person tom = new Person();

tom->setName("Tom");

This method works on an instance of the class, not the class itself. However you can have a static method that can work without having an instance. This is sometimes used in the Factory pattern:

Person tom = Person::createNewPerson();

3 years ago

A static function in C is a function that has a scope that is limited to its object file. This means that the static function is only visible in its object file. A function can be declared as a static function by placing the static keyword before the function name.

A program that demonstrates static functions in C is given as follows ?


Example*

#include <stdio.h>



static void staticFunc(void){

   printf("Inside the static function staticFunc() ");

}



int main()

{

   staticFunc();

   return 0;

}

*Output

The output of the above program is as follows ?

Inside the static function staticFunc()

In the above program, the function staticFunc() is a static function that prints ”Inside the static function staticFunc()”. The main() function calls staticFunc(). This program works correctly as the static function is called only from its own object file.

3 years ago