/* file e-poli_tipo.c */
#include <stdio.h>

typedef union {
        int j;
        char a;
        double b;
} poli_tipo ;

int main() {
   int const lv=10;
   int i;
   
   poli_tipo mix[lv]; 
   
   mix[0].j = 0;
   mix[1].a = 'a';
   mix[2].b = 0.123;
   mix[3].j = 123;
   mix[4].a = 'Z';
   mix[5].b = 9.12345678;
   mix[6].j = 18;
   mix[7].a = 'q';
   mix[8].b = 0.0012;
   mix[9].j = 13;

   for ( i = 0; i < lv; i++ ) {
      if ( i%3 == 0 ) printf("mix[%d] = %d\n",i,mix[i].j);
      if ( i%3 == 1 ) printf("mix[%d] = %c\n",i,mix[i].a);
      if ( i%3 == 2 ) printf("mix[%d] = %lf\n",i,mix[i].b);
   }

   return 0;
}