C | Functions | Question 7

Predict the output?

#include <stdio.h> 
int main() 
{ 
    void demo(); 
    void (*fun)(); 
    fun = demo; 
    (*fun)(); 
    fun(); 
    return 0; 
} 
  
void demo() 
{ 
    printf("GeeksQuiz "); 
} 

(A) GeeksQuiz
(B) GeeksQuiz GeeksQuiz
(C) Compiler Error
(D) Blank Screen

Answer: (B)

Explanation: This is a simple program with function pointers. fun is assigned to point to demo. So the two statements “(*fun)();” and “fun();” mean the same thing.

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