Dealing with combining cases & duplicate cases in switch statements

Question

Is it okay to combine cases that share assignments and repeat the case for assignments that are not shared, or is it preferred to just keep each se

Answer 1

If you run static analysis tool like Coverity it report minor error if you combine multiple switch cases like below.

   case -90:
   // Intentionally fall through
   case  90:
        w = 480;
        x = '0';
        break;

Better to repeat some lines of code than to make some undesired error.

       case -90:
            w = 480;
            x = '0';
            break;
       case  90:
            w = 480;
            x = '0';
            break;