Serial: bool() should return false if begin() has not been called yet

facchinm · facchinm · commit fdeb7d81bd06 · 2021-03-24T11:59:49.000+01:00
diff --git a/cores/arduino/Serial.cpp b/cores/arduino/Serial.cpp
@@ -200,7 +200,7 @@ UART::operator bool() {
 		return SerialUSB;
 	}
 #endif
-	return 1;
+	return _serial != NULL && _serial->obj != NULL;
 }
 
 #if defined(SERIAL_CDC)

Original file line number	Diff line number	Diff line change
`@@ -200,7 +200,7 @@ UART::operator bool() {`
`200`	`200`	`return SerialUSB;`
`201`	`201`	`}`
`202`	`202`	`#endif`
`203`		`- return 1;`
	`203`	`+ return _serial != NULL && _serial->obj != NULL;`
`204`	`204`	`}`
`205`	`205`
`206`	`206`	`#if defined(SERIAL_CDC)`