function pointer demo added
committer: Markus Bröker <mbroeker@largo.homelinux.org>
/**
* test/demos/function_pointers.c
* Copyright (C) 2008 Markus Broeker
*/
#include <stdio.h>
#include <stdlib.h>
typedef struct T {
int a;
int b;
} T;
int plus(T t)
{
return t.a+t.b;
}
int minus(T t)
{
return t.a-t.b;
}
int func(T t, int (*ptrFunc)(T))
{
return ptrFunc(t);
}
int main(int argc, char **argv)
{
T t = {
.a = 20,
.b = 10
};
printf("Result: %d\n", func(t, &plus));
printf("Result: %d\n", func(t, &minus));
return EXIT_SUCCESS;
}