Debug Loggin In Swift

logging.swift

#if DEBUG
    func dLog(message: AnyObject, filename: String = __FILE__, function: String = __FUNCTION__, line: Int = __LINE__) {
        NSLog("%@", "[\(filename):\(line)] \(function) - \(message)")
    }
    
    func uLog(message: AnyObject, filename: String = __FILE__, function: String = __FUNCTION__, line: Int = __LINE__) {
        let message = NSString(format: "%@", "\(function) - \(message)") as String
        let alertView = UIAlertView(title: "[\(filename):\(line)]", message: message,  delegate:nil, cancelButtonTitle:"OK")
        alertView.show()
    }
    
    #else
    func dLog(message: AnyObject, filename: String = __FILE__, function: String = __FUNCTION__, line: Int = __LINE__) { }
    
    func uLog(message: AnyObject, filename: String = __FILE__, function: String = __FUNCTION__, line: Int = __LINE__) { }
    
#endif

func aLog(message: String, filename: String = __FILE__, function: String = __FUNCTION__, line: Int = __LINE__) {
    NSLog("%@", "[\(filename):\(line)] \(function) - \(message)")
}

Credit: https://gist.github.com/xmzio/fccd29fc945de7924b71 and @BryanJBryce