//
// 2.19.constructor.cpp
// chapter 2 language usability
// modern c++ tutorial
//
// created by changkun at changkun.de
// https://github.com/changkun/modern-cpp-tutorial
//

#include <iostream>
#include <string>
class Base {
public:
 std::string str;
 int value;
 Base() = delete;
 Base(std::string s) {
 str = s;
 }
 
 // delegate constructor
 Base(std::string s, int v) : Base(s) {
 value = v;
 }
 
 // final constructor
 virtual void foo() final {
 return;
 }
 virtual void foo(int v) {
 value = v;
 }
};
class Subclass final : public Base {
public:
 double floating;
 Subclass() = delete;
 
 // inherit constructor
 Subclass(double f, int v, std::string s) : Base(s, v) {
 floating = f;
 }
 
 // explifict constructor
 virtual void foo(int v) override {
 std::cout << v << std::endl;
 value = v;
 }
}; // legal final

// class Subclass2 : Subclass {
// }; // illegal, Subclass has final
// class Subclass3 : Base {
// void foo(); // illegal, foo has final
// }

int main() {
 // Subclass oops; // illegal, default constructor has deleted
 Subclass s(1.2, 3, "abc");
 
 s.foo(1);
 
 std::cout << s.floating << std::endl;
 std::cout << s.value << std::endl;
 std::cout << s.str << std::endl;
}