Merging Case Functions

Instead of this:

Code:

---

case 'r':
        { Mufftastic code. }
case 'R':
        { Same mufftastic code. }

---

I need something that combines them, like this (even though this code doesn't work):

Code:

---

case 'r' || 'R':
        { Mufftastic code. }

---

Can anyone offer any advice? Examples, even? Thanks!

Code:

---

case 'r' :
case 'R' :
//insert code here
break;

---

There is such a thing as "fallthrough":

Code:

---

case 'r':
  /* Nothing here, so we "fall through" to the next case */
case 'R':
  /* Code. */

---

Which is why break is so important in cases, normally.

Or you could even do

Code:

---

switch ( toupper(ch) ) {
  case 'R':  // also case 'r' from the toupper() in the switch
}

---

Consider this, if you have a lot of case letters to choose from. A missing fall-through case would be a hard bug to spot in a sea of other cases.

But if you also have

Code:

---

switch ( monty ) {
  case 'X':  // do something
  case 'x':  // and now for something completely different
}

---

then you will need to use the fall through style for any letters where case does not matter.

I never did think about doing such a thing. Thanks, everyone! :D

If you want a little fun with switch case, to illustrate the issue...

Code:

---

#include <stdio.h>

int main (void)
  {
    int i;

    for (i = 0; i < 5; i ++)
      {
        switch(i)
          {
              case 0 :
                printf("The ");
              case 1 :
                printf("fast ");
              case 2:
                printf("feline ");
              case 3:
                printf("flies ");
              case 4:
                printf("farthest");
              case 5:
                printf("\n");
              }
          printf "\n");
        }
  return 0;
}

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