How to convert numbers into text?

Question

I have been learning Objective-C with the Kochan book and I can't figure out how to do this exercise program. Only odd numbered exercises are listed online and this one is even. The exercise is to convert numbers into words. So, if "932" was entered, the program should return: "nine three two"

I used a do, while loop but the words came out backwards, as in "two three nine". Can anyone suggest a technique that works for this?

int number, digit;


NSLog(@"Type in your integer.");
scanf("%i", &number);


 do
 {
     digit = number % 10;

     if (digit == 0)
         NSLog(@"zero");
     if (digit == 1)
         NSLog(@"one");
     if (digit == 2)
         NSLog(@"two");
     if (digit == 3)
         NSLog(@"three");
     if (digit == 4)
         NSLog(@"four");
     if (digit == 5)
         NSLog(@"five");
     if (digit == 6)
         NSLog(@"six");
     if (digit == 7)
         NSLog(@"seven");
     if (digit == 8)
         NSLog(@"eight");
     if (digit == 9)
         NSLog(@"nine");

     number /= 10;
 }
while (number != 0);

Answer 1

This isn't exactly what you want, but for your consideration:

NSNumberFormatter *f = [[NSNumberFormatter alloc] init];
[f setNumberStyle:NSNumberFormatterSpellOutStyle];

NSString *s = [f stringFromNumber:[NSNumber numberWithInt:932]];
NSLog(@"%@", s);
[f release];

This will log:

nine hundred and thirty-two

Again, it's not the "nine three two" you want, but it's also nice and short. :)