Pointers to Functions As Arguments - C Pointer

C examples for Pointer:Function Pointer

  1. HOME
  2. C
  3. Pointer
  4. Function Pointer

Description

Pointers to Functions As Arguments

Demo Code

#include <stdio.h>

int sum(int,int);
int product(int,int);
int difference(int,int);
int any_function(int(*pfun)(int, int), int x, int y);

int main(void)
{
  int a = 10;               
  int b = 5;                
  int result = 0;           
  int (*pf)(int, int) = sum;          // Pointer to function

  // Passing a pointer to a function
  result = any_function(pf, a, b);/*from   ww w.j a  va2 s.c o  m*/

  printf("result = %2d\n", result );

  // Passing the address of a function
  result = any_function(product,a, b);

  printf("result = %2d\n", result );

  printf("result = %2d\n", any_function(difference, a, b));
  return 0;
}

int any_function(int(*pfun)(int, int), int x, int y){
  return pfun(x, y);
}

int sum(int x, int y){
  return x + y;
}

int product(int x, int y){
  return x * y;
}

int difference(int x, int y){
  return x - y;
}

Result


Related Tutorials