From: Ros@invalid.invalid   
      
   here the unsigned chars are 8 bit unsigned...   
   here the index i it seems always definited from 0 to 255   
   and so it is always definited a[i], but one can make errors the same   
   in other places...   
      
      
   #include    
      
   main(void)   
   {unsigned char a[258]="0123456789", i;   
    unsigned c;   
    for(c=i=0;c<500;++c,++i)   
        printf("%c",a[i]);   
    printf("\n");   
    return 0;   
   }   
      
   result   
      
   C:\>index   
   0123456789   
   0123456789   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)