Question

I have an enum defined as follows:

typedef enum modifiers {
                        modifierNone=-1,
                        modifierCmd,
                        modifierShift,
                        modifierOption
                        } Modifier;

What i would like to do is pass a string value from one method to another for example (modifierCmd) and create the relevant Modifier to pass to a separate method.

- (void)methodOne:(NSString *)stringValue {
    Modifier mod = (Modifier)stringValue;
    [self methodTwo:mod];
}

Should this work?

Thanks

Answer 1

Nope. You can use a function, though:

Modifier makeModifier(NSString *s)
{
    if ([s isEqualToString:@"modifierNone"]) {
        return modifierNone;
    } else if ([s isEqualToString:@"modifierCmd"]) {
        return modifierCmd;
    } /* etc... */
}

- (void)methodOne:(NSString *)stringValue
{
    [self methodTwo:makeModifier(stringValue)];
}