# define uint_fast8_t uint8_t\r
# define uint_fast16_t uint16_t\r
#elif defined(TEENSYDUINO) && (defined(__MK20DX256__) || defined(__MK20DX128__)) // Teensy 3.x (tested on Teensy 3.1 in Arduino 1.6.5 / Teensyduino 1.2.5)\r
# define uint_fast8_t uint8_t\r
# define uint_fast16_t uint16_t\r
#elif defined(TEENSYDUINO) && (defined(__MK20DX256__) || defined(__MK20DX128__)) // Teensy 3.x (tested on Teensy 3.1 in Arduino 1.6.5 / Teensyduino 1.2.5)\r