int main () {
CRectangle recta(3,4);
CRectangle rectb(5,6);
CRectangle rectc;
recta.set_values(4,4);
cout << rectc.n << endl;
cout << "recta area: " << recta.area()<<endl;
cout << "rectb area: " << rectb.area()<<endl;
cout << "rectc area: " << rectc.area()<<endl;
CRectangle a;
CRectangle *pb = new CRectangle;
CRectangle *pc = &a;
CRectangle *pe = new CRectangle(3,4);
CRectangle *pd = new CRectangle[2];
a.set_values (1,2);
pd->set_values (5,6);
pd[1].set_values (7,8);
cout << "a area: " << a.area() << endl;
cout << "b area: " << pb->area() << endl;
cout << "*c area: " << pc->area() << endl;
cout << "d[0] area: " << pd[0].area() << endl;
cout << "d[1] area: " << pd[1].area() << endl;
cout << "e area: " << pe->area()<<endl;
if ( pc->isitme(a) )
cout << "yes, &a is pc"<<endl;
return 0;
}
int main () {
//first example
CRectangle rect;
rect.set_values (3,4);
cout << "area: " << rect.area() << "\n";
//example of internal vs external class func defn
CRectangle_internal rect_internal;
cout << "area internal: " << rect_internal.area() << "\n";
rect_internal.set_values(3,4);
cout << "area internal: " << rect_internal.area() << "\n";
//example of multiple instances
CRectangle rectb;
rectb.set_values(5,6);
cout << "areab: " << rectb.area() << "\n";
//constructors
CRectangle_con rectc;
CRectangle_con rectd (5,6);
cout << "rectc area: " << rectc.area() << endl;
cout << "rectd area: " << rectd.area() << endl;
//destructor
//implicit default
// CRectangle_implicit rect_implict (2,3);
// CRectangle_implicit rect_implicit2 (rect_implicit);
// cout << "rect_implict: " << rect_implict.area() << endl;
// cout << "rect_implict2: " << rect_implict2.area() << endl;
// CExample ex (2,3);
// CExample ex2 (ex);
//pointers
return 0;
}
int main(){
CRectangle rect;
rect.set_values(3, 4);
cout << "area: " << rect.area();
return 0;
}
int main() {
CRectangle rect;
CTriangle trgl;
rect.set_values(4,5);
trgl.set_values(4,5);
cout << rect.area() << endl;
cout << trgl.area() << endl;
return 0;
}
int main(){
CRectangle rect;
CTriangle trgl;
rect.set_values(4, 5);
trgl.set_values(4, 5);
rect.output(rect.area());
trgl.output(trgl.area());
return 0;
}
int main () {
CRectangle rect;
rect.set_values (3,4);
printf("Rect Area : %i\n", rect.area());
return 0;
}
void Learn::test(){
CRectangle a, *b, *c;
CRectangle * d = new CRectangle[2];
b= new CRectangle;
c= &a;
a.set_values (1,2);
b->set_values (3,4);
d->set_values (5,6);
d[1].set_values (7,8);
cout << "a area: " << a.area() << endl;
cout << "*b area: " << b->area() << endl;
cout << "*c area: " << c->area() << endl;
cout << "d[0] area: " << d[0].area() << endl;
cout << "d[1] area: " << d[1].area() << endl;
}
int main () {
CRectangle a, *b, *c;
CRectangle * d = new CRectangle[2];
b= new CRectangle;
c= &a;
a.set_values (1,2);
b->set_values (3,4);
d->set_values (5,6);
d[1].set_values (7,8);
cout << "a area: " << a.area() << endl;
cout << "*b area: " << b->area() << endl;
cout << "*c area: " << c->area() << endl;
cout << "d[0] area: " << d[0].area() << endl;
cout << "d[1] area: " << d[1].area() << endl;
delete[] d;
delete b;
return 0;
}
int main () {
CPolygon* polygons[4];
polygons[0] = new CRectangle(20,30);
polygons[1] = new CTriangle(20,25);
polygons[2] = new CCircle(25,25);
polygons[3] = new CSquare(18,18);
for(int i = 0; i < 4; i++)
{
CTriangle* trin = dynamic_cast <CTriangle *> (polygons[i]);
if (trin != 0)
{
trin->set_values(10, 10);
assert(trin->area() != 50);
}
CCircle* circ = dynamic_cast <CCircle *> (polygons[i]);
if (circ != 0)
{
circ->set_values(10, 10);
assert(circ->area() != 78);
}
CSquare* sqrr = dynamic_cast <CSquare *> (polygons[i]);
if (sqrr != 0)
{
sqrr->set_values(10, 10);
assert(sqrr->area() != 100);
}
CRectangle* rect = dynamic_cast <CRectangle *> (polygons[i]);
if (rect != 0)
{
rect->set_values(10, 20);
assert(rect->area() != 200);
}
}
/*
*/
return 0;
}