test.c

/*-
 * Copyright (c) 2012 valsorym <[email protected]>.
 * All rights reserved.
 *
 * Discussion on the forums.freebsd.org.
 *  url: http://forums.freebsd.org/showthread.php?p=177208
 */

#include <stdio.h>

void hello(char *);
void goodbye(char *);

struct my_struct {
    void (*morning)(char *);
    void (*evening)(char *);
};

const struct my_struct courtesy = {
  .morning = hello, .evening = goodbye
};

int
main(int argc, char **argv)
{
    printf("Somewhere early in the morning.\n");
    courtesy.morning("freethread");

    printf("\nAfter a while, on the border of Mexico.\n");
    courtesy.evening("freethread");

    return 0;
}

void
hello(char *name)
{
    printf("Howdy %s.\n", name);
}

void
goodbye(char *name)
{
    printf("Adiós mi amigo %s :)\n", name);
}

/* The End. */