string-enum.c

char *const kCBLocationAtStartupString = "startup";
// etc ...
 
typedef enum CBLocation {
    CBLocationAtStartup = (char *const)"startup",
    // etc.
} CBLocation;
 
void showInterstitial(CBLocation location) {
    char *locationString = (char *)location;
    printf("%s\n", locationString);
}

Try this:

enum CBLocation {
   CB_STARTUP,
   CB_FOO,
   // ...
};

const char *CBLocationStrings[] = {
    [CB_STARTUP] = "startup",
    [CB_FOO] = "foo",
    // ...
};