Thread: Enumeration values not handled

Hi, all. I'm compiling with gcc -Wall -Wextra. My functions return an enumeration to the caller, and then the caller deals with it like this:

Code:

switch (result)
{
case success:
   /*blah*/
case failure:
  /*blah*/
case another:
  /*blah*/
}

Now, my switch statements do not handle all possible values within the enumeration, because I know that it is (or should be) impossible for certain values to be returned in certain circumstances. GCC gives me:

warning: enumeration value 'another' not handled in switch
warning: control reaches end of non-void function

Now whatever code GCC is generating for the other values of the switch, I know it can never be executed. What's the 'proper' way of dealing with this?

Richard (TIA)