Class Example

example/injection.cpp:32–42

};

class Example {
 public:
  Example(Drawable const drawable, std::ostream &out)
      : drawable{drawable}, out{out} {}

  void draw() { drawable.draw(out); }

 private:
  Drawable const drawable;
  std::ostream &out;
};

int main() {
  namespace di = boost::di;