/****************************************************************************
 *
 *  Enumeration example: This program will fail to compile because
 *  'Alex' is in both enum lists.
 *
 ****************************************************************************/
main()
{

    enum People1 {Alex=0,    Tracy,  Kristian} Girls;
    enum People2 {William=0, Martin, Alex}     Boys;
    /*     A      A
           |      |
           |      |
           |      -------  list of aliases.
           --------------  Enumeration tag.	*/
    

    switch (Boys)
    {
    case William:
        puts("William");
        break;

    case Martin:
        puts("Martin");
        break;

    case Alex:
        puts("Alex");
        break;

    default:
        break;
  }
}