plural.m

+ (NSString *)getNumEndingForNumber:(int)iNumber endingsArray:(NSArray *)aEndings {
    NSString *sEnding = nil;
    int i = 0;
    iNumber = iNumber % 100;
    if (iNumber >= 11 && iNumber <= 19) {
        sEnding = aEndings[2];
    } else {
        i = iNumber % 10;
        switch (i) {
            case 1:
                sEnding = aEndings[0];
                break;
            case 2:
            case 3:
            case 4:
                sEnding = aEndings[1];
                break;
            default:
                sEnding = aEndings[2];
                break;
        }
    }
    return sEnding;
}