C examples for Pointer:Function Pointer
Using a pointer to call different functions.
#include <stdio.h> void func1(int x); void one(void); void two(void); void other(void); int main( void ) { int nbr;/* w w w .java 2 s. c om*/ for (;;) { puts("\nEnter an integer between 1 and 10, 0 to exit: "); scanf("%d", &nbr); if (nbr == 0) break; func1(nbr); } return 0; } void func1(int val) { /* The pointer to function. */ void (*ptr)(void); if (val == 1) ptr = one; else if (val == 2) ptr = two; else ptr = other; ptr(); } void one(void) { puts("You entered 1."); } void two(void) { puts("You entered 2."); } void other(void) { puts("You entered something other than 1 or 2."); }