goto array

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

int main(int argc, char *argv[])
{
    void *jmp[] = { &&label0, &&label1, &&label2 };

    if(argc > 1) {
        unsigned lbl = atoi(argv[1]);
        if(lbl < 3)
            goto *jmp[lbl];
    }

    puts("none");
    return 0;

label0:
    puts("zero");
    return 0;

label1:
    puts("one");
    return 0;

label2:
    puts("two");
    return 0;
}