dishbreak · August 29, 2015 13:56 · Mar 2, 2014 · Mar 2, 2014 · Mar 2, 2014
diff --git a/usage.cpp b/usage.cpp
@@ -0,0 +1,8 @@
+Television * tv = new Television();
+
+//conditional is true if call to pressPowerButton() is false.
+if ( !( tv->pressPowerButton() ) ) {
+    //alert! We have an issue
+}
+
+...
diff --git a/television-buggy.cpp b/television-buggy.cpp
@@ -1,13 +1,13 @@
-	void Television::pressPowerButton() 
-	{
-		tvIsOn = !tvIsOn;
+void Television::pressPowerButton() 
+{
+    tvIsOn = !tvIsOn;
 
-		if (tvIsOn == true) 
-		{
-			turnOn();
-		} 
-		else
-		{
-			turnOff();
-		}
-	}
+    if (tvIsOn == true) 
+    {
+        turnOn();
+    } 
+    else
+    {
+        turnOff();
+    }
+}
diff --git a/television-buggy.h b/television-buggy.h
@@ -1,14 +1,14 @@
 class Television
-    {
-    	public:
-    		Television();
-    		~Television();
+{
+public:
+    Television();
+    ~Television();
 
-    		void pressPowerButton();
+    void pressPowerButton();
 
-    	private:
-    		bool tvIsOn; //state variable
+private:
+   bool tvIsOn; //state variable
 
-    		void turnOn();
-    		void turnOff();
-    };
+   void turnOn();
+   void turnOff();
+};
diff --git a/television.cpp b/television.cpp
@@ -1,65 +1,65 @@
 Television::Television() 
-	{	
-		//on creation, the television is off.
-		tvIsOn = false;
-	}
+{   
+        //on creation, the television is off.
+    tvIsOn = false;
+}
 
-	Television::~Television()
-	{
-        
-	}
+Television::~Television()
+{
+
+}
 
-	bool Television::pressPowerButton() 
-	{
-		//if the current state is on, try to turn off
-		if (tvIsOn == true) 
-		{
-		    tvIsOn = turnOff();
-		}
-		//otherwise, the current state is off, so try to turn on
-		else
-		{
-		    tvIsOn = turnOn();
-		}
-		
-		//report the current state back to the user
-		return tvIsOn;
-	}
+bool Television::pressPowerButton() 
+{
+        //if the current state is on, try to turn off
+    if (tvIsOn == true) 
+    {
+        tvIsOn = turnOff();
+    }
+        //otherwise, the current state is off, so try to turn on
+    else
+    {
+        tvIsOn = turnOn();
+    }
+    
+        //report the current state back to the user
+    return tvIsOn;
+}
 
-	bool Television::turnOn() 
-	{
-	    //set a variable for success
-	    bool success = false;
-	    
-		//do stuff to turn on, set success variable accordingly.
-		
-		//if we succeeded, return the new state of "on".
-		if (success)
-		{
-		    return true;
-		}
-		//otherwise, keep the state as "off".
-		else
-		{
-		    return false;
-		}
-	}
+bool Television::turnOn() 
+{
+        //set a variable for success
+    bool success = false;
+
+    //do stuff to turn on, set success variable accordingly.
+    
+    //if we succeeded, return the new state of "on".
+    if (success)
+    {
+        return true;
+    }
+        //otherwise, keep the state as "off".
+    else
+    {
+        return false;
+    }
+}
 
-	bool Television::turnOff() 
-	{
-	    //set a variable for success
-	    bool success = false;
-	    
-		//do stuff to turn off, set success variable
-		
-		//if we succeeded, return the new state of "off".
-		if (success)
-		{
-		    return false;
-		}
-		//otherwise, keep the state as "on".
-		else
-		{
-		    return true;
-		}
-	}
+bool Television::turnOff() 
+{
+        //set a variable for success
+    bool success = false;
+
+        //do stuff to turn off, set success variable
+    
+        //if we succeeded, return the new state of "off".
+    if (success)
+    {
+        return false;
+    }
+        //otherwise, keep the state as "on".
+    else
+    {
+        return true;
+    }
+}
diff --git a/television.h b/television.h
@@ -1,14 +1,14 @@
 class Television
-    {
-    	public:
-    		Television();
-    		~Television();
+{
+public:
+    Television();
+    ~Television();
 
-    		bool pressPowerButton();
+    bool pressPowerButton();
 
-    	private:
-    		bool tvIsOn; //state variable
+private:
+   bool tvIsOn; //state variable
 
-    		bool turnOn();
-    		bool turnOff();
-    };
+   bool turnOn();
+   bool turnOff();
+};
diff --git a/television-buggy.cpp b/television-buggy.cpp
@@ -0,0 +1,13 @@
+	void Television::pressPowerButton() 
+	{
+		tvIsOn = !tvIsOn;
+
+		if (tvIsOn == true) 
+		{
+			turnOn();
+		} 
+		else
+		{
+			turnOff();
+		}
+	}
diff --git a/television-buggy.h b/television-buggy.h
@@ -0,0 +1,14 @@
+class Television
+    {
+    	public:
+    		Television();
+    		~Television();
+
+    		void pressPowerButton();
+
+    	private:
+    		bool tvIsOn; //state variable
+
+    		void turnOn();
+    		void turnOff();
+    };
diff --git a/television.cpp b/television.cpp
@@ -0,0 +1,65 @@
+Television::Television() 
+	{	
+		//on creation, the television is off.
+		tvIsOn = false;
+	}
+
+	Television::~Television()
+	{
+
+	}
+
+	bool Television::pressPowerButton() 
+	{
+		//if the current state is on, try to turn off
+		if (tvIsOn == true) 
+		{
+		    tvIsOn = turnOff();
+		}
+		//otherwise, the current state is off, so try to turn on
+		else
+		{
+		    tvIsOn = turnOn();
+		}
+
+		//report the current state back to the user
+		return tvIsOn;
+	}
+
+	bool Television::turnOn() 
+	{
+	    //set a variable for success
+	    bool success = false;
+
+		//do stuff to turn on, set success variable accordingly.
+
+		//if we succeeded, return the new state of "on".
+		if (success)
+		{
+		    return true;
+		}
+		//otherwise, keep the state as "off".
+		else
+		{
+		    return false;
+		}
+	}
+
+	bool Television::turnOff() 
+	{
+	    //set a variable for success
+	    bool success = false;
+
+		//do stuff to turn off, set success variable
+
+		//if we succeeded, return the new state of "off".
+		if (success)
+		{
+		    return false;
+		}
+		//otherwise, keep the state as "on".
+		else
+		{
+		    return true;
+		}
+	}
diff --git a/television.h b/television.h
@@ -0,0 +1,14 @@
+class Television
+    {
+    	public:
+    		Television();
+    		~Television();
+
+    		bool pressPowerButton();
+
+    	private:
+    		bool tvIsOn; //state variable
+
+    		bool turnOn();
+    		bool turnOff();
+    };