EXTI examples: whitespace fixups.

Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>

1 files changed, 16 insertions, 16 deletions

diff --git a/examples/exti-interrupt-callback.cpp b/examples/exti-interrupt-callback.cpp
index 1053ab2..c87c064 100644
--- a/examples/exti-interrupt-callback.cpp
+++ b/examples/exti-interrupt-callback.cpp
@@ -4,10 +4,10 @@
 //
 // This is similar to the exti-interrupt example, but shows the use of a class
 // method to handle interrupts.
-// 
-// More about attachInterrupt: 
+//
+// More about attachInterrupt:
 // http://leaflabs.com/docs/lang/api/attachinterrupt.html
-// 
+//
 
 
 #include <wirish/wirish.h>
@@ -18,36 +18,36 @@ public:
     void initialize() {
         // LED is off by default
         this->isLEDOn = false;
-        
+
         // Attach interrupt to class method handler
         attachInterrupt(BOARD_BUTTON_PIN, buttonInterruptHandler, this, RISING);
     }
-    
+
 private:
 
     bool isLEDOn;
 
-    // Static event handler takes a void * argument that was originally 
-    // passed to the attachInterrupt call. If the argument in question is an 
+    // Static event handler takes a void * argument that was originally
+    // passed to the attachInterrupt call. If the argument in question is an
     // instance of the class (MyAwesomeClass in this case), the static function
-    // get access to that instance's data (even private data). 
+    // get access to that instance's data (even private data).
     //
-    // In other words, this setup allows the Maple to have class method 
+    // In other words, this setup allows the Maple to have class method
     // interrupt handlers (albeit with a work around).
     //
-    // However, as you might imagine, this argument can be anything (if you 
+    // However, as you might imagine, this argument can be anything (if you
     // don't need instance data access).
     //
     static void buttonInterruptHandler(void *arg) {
         // Cast the "generic" void argument to the class instance.
         MyAwesomeClass *instance = (MyAwesomeClass *)arg;
-        
+
         // Accessing private instance data
         instance->isLEDOn = !(instance->isLEDOn);
-        
+
         // Set LED
         digitalWrite(BOARD_LED_PIN, instance->isLEDOn);
-        
+
         // Delay slightly for switch de-bouncing
         delay(20);
     }
@@ -59,16 +59,16 @@ MyAwesomeClass myClass;
 void setup() {
     pinMode(BOARD_BUTTON_PIN, INPUT);
     pinMode(BOARD_LED_PIN, OUTPUT);
-    
+
     // The initialize method sets up the event handler to the private method
-    // in MyAwesomeClass. There is however, nothing stopping you from setting 
+    // in MyAwesomeClass. There is however, nothing stopping you from setting
     // up event handlers which are public methods in classes.
     myClass.initialize();
 }
 
 // Loop. Does nothing in this example.
 void loop() {
-    
+
 }
 
 // Force init to be called *first*, i.e. before static object allocation.