Objective-c: NSString to enum

Question

So, I\'ve got this definition:

typedef enum {
    red = 1,
    blue = 2,
    white = 3
} car_colors;

Then, I\'ve got a variable of type car_col

Answer 1

Rather than use an array, why not use a dictionary; You have the colour NSString as keys, and you return whatever NSNumber you want. Something like; (Long winded for clarity).

NSDictionary *carColourDictionary = @{@"Red": @1,
                                      @"Blue": @2,
                                      @"White": @3};

// Use the dictionary to get the number
// Assume you have a method that returns the car colour as a string:
// - (NSString *)colourAsString;
int carColour = carColourDictionary[object colourAsString];