Initializing structures with functions

Another way to initialize our hand is with a function. When given a card as an input parameter to an addCard() function, we need to make sure we put it in the correct place in our hand. The function is as follows:

struct Hand addCard( struct Hand oldHand , struct Card card )  {
  struct Hand newHand = oldHand;
  switch( newHand.cardsDealt )  {
    case 0:
      newHand.c1 = card;  newHand.cardsDealt++;  break;
    case 1:
      newHand.c2 = card;  newHand.cardsDealt++;  break;
    case 2:
      hewHand.c3 = card;  newHand.cardsDealt++;  break;
    case 3:
      hewHand.c4 = card;  newHand.cardsDealt++;  break;
    case 4:
      hewHand.c5 = card;  newHand.cardsDealt++;  break;
    default:
      // Hand is full, what to do now?
      // ERROR --> Ignore new card.
      newHand = oldHand;
      break;
  }
  return newHand;
}

In the preceding function, addCard(), oldHand, and card are inputs to the function. Remember that variables, including...