switch with repeating cases?

[nuzzle]

I would prefer to first separate the cases and then use functions for common code, like

switch (mycase){
    case 0:  
          // specific to case 0
       break;
    case 1:
       do12(); // common to both 1 and 2
          // specific to case 1
       break;
    case 2: {
       do12(); // common to both 1 and 2
          // specific to case 2
       break;
}