C++ programming problem

The class Chimney represents a smoke ventilation system. Consider the class diagram shown below.
Each instance of a Chimney has a height, a shape and can be either opened or closed. Here is the class definition (.h)

Class Diagram	Class Definition (.h file)
Chimney Chimney( ); void open(); void close(); bool isOpen() const; void setHeight( double height ); double getHeight() const; bool isOpen; double myHeight; // in feet	class Chimney { public: Chimney( ); void open(); void close(); bool isOpen() const; void setHeight( double height ); double getHeight() const; private: bool isOpen; double myHeight; };

Based on the information shown here, a possible implementation (.cpp) for Chimney is shown below.

Chimney::Chimney( ) { isOpen = false; myHeight = 0; } void Chimney::open() { isOpen = true; } void Chimney::close() { isOpen = false; } bool Chimney::isOpen() const { return( isOpen ); } void Chimney::setHeight( double height ){ myHeight = height; } double Chimney::getHeight() const { return( myHeight ); }

Based on this implementation of Chimney, define and implement the class Fireplace (a .h file and a .cpp
file). A Fireplace can be lit or extinguished and always has a Chimney to ventilate the smoke away. The
relationship between Fireplace and Chimney is shown in the diagram below.


Make sure your definition of Fireplace supports the following kinds of constructors:

Fireplace warmFire;	By default, a lighted fireplace with an open chimneystack that has a height 10 feet
Fireplace noFire( 20, false );	An unlit fireplace with a closed chimneystack that has a height of 20 feet

In addition, create these two operations on Fireplace :

(1)void Fireplace::light();
(2)void Fireplace::extinguish();

These operations should adjust the Fireplace by manipulating the Chimney, opening the chimneystack
before the FireplaceA????1s fire is lit and closing the chimneystack after the fire is extinguished.

As currently defined, can any of the member operations you defined on the class Fireplace be marked const?