int main() {
Circle luke (10.5);
Circle wallace;
Circle lindsay = 6.2;
Circle owen(lindsay);
Circle isaac = luke + lindsay;
cout << "luke's area: " << luke.area() << "\n";
cout << "luke's circum: " << luke.circum() << "\n\n";
cout << "lindsay's area: " << lindsay.area() << "\n";
cout << "lindsay's circum: " << lindsay.circum() << "\n\n";
cout << "owen's area: " << owen.area() << "\n";
cout << "owen's circum: " << owen.circum() << "\n\n";
cout << "isaac's area: " << isaac.area() << "\n";
cout << "isaac's circum: " << isaac.circum() << "\n\n";
cout << "wallace's area: " << wallace.area() << "\n";
cout << "wallace's circum: " << wallace.circum() << "\n\n\n";
int a = 123;
int b = 456;
cout << "before swap: a = " << a << " and b = " << b << "\n";
swapInts(a, b);
cout << "after swap: a = " << a << " and b = " << b << "\n";
return 0;
}
int main () {
Circle foo (10.0); // functional form
Circle bar = 20.0; // assignment init.
Circle baz {30.0}; // uniform init.
Circle qux = {40.0}; // POD-like
cout << "foo's circumference: " << setprecision(5) << foo.circum() << '\n';
return 0;
}
int main(){
Circle foo(10);// functional form
Circle bar = 10;// assignmemt init
// Circle baz = {30};// in C++98 'baz' must be initialized by constructor, not by '{...}'
// Circle qux {50};// C++98 'qux' must be initialized by constructor, not by '{...}'
cout<<"foo's circum is "<<foo.circum()<<endl;
cout<<"bar's circum is "<<bar.circum()<<endl;
return 0;
}