Fixed missing NOT_AN_INTERRUPT constant in digitalPinToInterrupt()

cmaglie · cmaglie · commit 74664e5d7c8b · 2014-10-21T16:55:37.000+02:00
Fixes #2379
diff --git a/hardware/arduino/cores/arduino/Arduino.h b/hardware/arduino/cores/arduino/Arduino.h
@@ -171,6 +171,8 @@ extern const uint8_t PROGMEM digital_pin_to_timer_PGM[];
 #define NOT_A_PIN 0
 #define NOT_A_PORT 0
 
+#define NOT_AN_INTERRUPT -1
+
 #ifdef ARDUINO_MAIN
 #define PA 1
 #define PB 2
