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// Fig. 7.34: light.cpp
// Member-function definitions for class Light.
#include <iostream>
using std::cout;
using std::endl;
#include "light.h" // Light class definition
// constructor
Light::Light( int number )
: on( false ),
floorNumber( number )
{
cout << "floor " << floorNumber << " light constructed"
<< endl;
} // end Light constructor
// destuctor
Light::~Light()
{
cout << "floor " << floorNumber
<< " light destructed" << endl;
} // end ~Light destructor
// turn light on
void Light::turnOn()
{
if ( !on ) { // if light not on, turn it on
on = true;
cout << "floor " << floorNumber
<< " light turns on" << endl;
} // end if
} // end function turnOn
// turn light off
void Light::turnOff()
{
if ( on ) { // if light is on, turn it off
on = false;
cout << "floor " << floorNumber
<< " light turns off" << endl;
} // end if
} // end function turnOff
/**************************************************************************
* (C) Copyright 1992-2003 by Deitel & Associates, Inc. and Prentice *
* Hall. All Rights Reserved. *
* *
* DISCLAIMER: The authors and publisher of this book have used their *
* best efforts in preparing the book. These efforts include the *
* development, research, and testing of the theories and programs *
* to determine their effectiveness. The authors and publisher make *
* no warranty of any kind, expressed or implied, with regard to these *
* programs or to the documentation contained in these books. The authors *
* and publisher shall not be liable in any event for incidental or *
* consequential damages in connection with, or arising out of, the *
* furnishing, performance, or use of these programs. *
*************************************************************************/
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