16 Area() : value(0.0), initialized(
false) {}
17 Area(
long double value) : value(value), initialized(
true) {}
19 Area& operator=(
long double rop);
20 operator long double()
const;
25 static const char debugName[];
26 const char* debugString()
const;
28 Area& operator+=(
const Area& rhs);
29 Area& operator-=(
const Area& rhs);
30 Area& operator*=(
const Area& rhs);
31 Area& operator/=(
const Area& rhs);
33 friend std::istream& operator>>(std::istream& lop, Area& rop);
34 friend std::ostream& operator<<(std::ostream& os,
const Area& obj);