page_382_function_array.c

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

enum response_type{DUMP,SECOND_CHANCE,MARRIAGE};

typedef struct
{
	char *name;
	enum response_type type;
}response;

void dump(response r)
{
	printf("Dear %s ,\n",r.name);
	puts("Unfortunately your last date contacted us to");
	puts("say that they will not be seeing you again");
}

void second_chance(response r)
{
	printf("Dear %s ,\n",r.name);
	puts("Good news: your last date contacted us to");
	puts("rrange another meeting. Please call ASAP.");
}

void marriage(response r)
{
	printf("Dear %s,\n", r.name);
	puts("Congratulations! Your last date has contacted");
	puts("us with a proposal of marriage.");
}

void (*replies[])(response) = {dump,second_chance,marriage};

int main()
{
	response r[] = 
	{
		{"Mike", DUMP}, {"Luis", SECOND_CHANCE},
		{"Matt", SECOND_CHANCE}, {"William", MARRIAGE}
	};
	int i;
	for(i = 0;i < 4;i++)
	{
		replies[r[i].type](r[i]);
	}
	return 0;
}