oop-praddy: reporting change of state of a class

The function calls another method when the state of a class changes

#include <iostream>

class C

{

public:

C() {state = 0;}

void draw();

void change_state() { state = 1;}

void draw1() {std::cout << "draw1 called\n";}

void draw2() {std::cout << "draw2 called\n";}

private:

int state;

};

//---------------------

void C::draw()

{

if (state == 0)

draw1();

else

draw2();

}

//=================

int main()

{

C c;

c.draw1();

c.change_state();

c.draw();

std::cin.get();

}

oop-praddy