/** switch-trick.c -- by James D. Lin (last updated: 2006-02-05)
  *
  *     Demonstration of a hack to interleave 'switch' cases with other
  *     control structures.  Inspired by Duff's Device.
  */

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


int main(int argc, char** argv)
{
    int i;
    if (argc < 2)
    {
        fprintf(stderr, "Usage: %s <n>\n", argv[0]);
        return EXIT_FAILURE;
    }

    i = atoi(argv[1]);

    switch (i)
    {
        case 0: if (1)
                {
                    printf("case 0 only\n");
                }
                else
        case 1: {
                    printf("case 1 only\n");
                }

                printf("common case to 0 or 1\n");
                break;

        default:
                printf("some other case\n");
                break;
    }

    return EXIT_SUCCESS;
}