remove 'unused parameter' compiler warning

henrygab · turmary · commit 042522414cf3 · 2020-12-04T14:29:21.000+08:00
diff --git a/libraries/Wire/examples/slave_receiver/slave_receiver.ino b/libraries/Wire/examples/slave_receiver/slave_receiver.ino
@@ -28,6 +28,8 @@ void loop()
 // this function is registered as an event, see setup()
 void receiveEvent(int howMany)
 {
+  (void)howMany; // avoid compiler warning about unused parameter
+
   while(1 < Wire.available()) // loop through all but the last
   {
     char c = Wire.read(); // receive byte as a character

Original file line number	Diff line number	Diff line change
`@@ -28,6 +28,8 @@ void loop()`
`28`	`28`	`// this function is registered as an event, see setup()`
`29`	`29`	`void receiveEvent(int howMany)`
`30`	`30`	`{`
	`31`	`+ (void)howMany; // avoid compiler warning about unused parameter`
	`32`	`+`
`31`	`33`	`while(1 < Wire.available()) // loop through all but the last`
`32`	`34`	`{`
`33`	`35`	`char c = Wire.read(); // receive byte as a character`