prog/c/add.c

#include <stdio.h>

/* Add two integers */
int add (int a, int b) {
  return a + b;
}

/* a function that takes a function pointer */
int add2 (int (*pAdd) (int, int)) {
  return (* pAdd)(2, 3);
}

int
main () {
  int (* pAdd)(int, int);
  pAdd = &add;
  int sum = (*pAdd)(2, 3);
  printf ("Sum is %d\n", sum);

  return 0;
}