Translate C++ to D

[Luca Lupo]

So this files is correctly converted from .cpp to .d??

//Observer.cpp

#include<iostream>
#include<string>
#include"Subject.h"
using namespace std;

Observer::~Observer()
{}

Observer::Observer()
{}

SubscriberG::SubscriberG(string a){
     indirizzo_e_mail_G = a;
}

SubscriberS::SubscriberS(string a,string b){
     indirizzo_e_mail_S = a;
     name_author = b;
}


void Observer::Update(Subject* b)
{}

void Subscriber::Update(Subject* b)
{}

void SubscriberS::Update(Subject* b){
     if (name_author == ((Blog *)b)->GetAuthor()){
        cout<<"Subscriber tipo S->"<<"Name blog: "<<((Blog *)b)->GetName()<<endl;
        ((Blog *)b)->GetTitle();
        ((Blog *)b)->GetText();
        cout<<"Autore Ultimo Post :"<<((Blog *)b)->GetAuthor();
        cout<<endl<<endl;
     }
}

void SubscriberG::Update(Subject* b){
     cout<<"Subscriber tipo G->"<<"Name blog: "<<((Blog *)b)->GetName()<<endl;
     ((Blog *)b)->GetTitle();
     ((Blog *)b)->GetLine();
     cout<<"Autore Ultimo Post :"<<((Blog *)b)->GetAuthor();
     cout<<endl<<endl;
}




//Observer.d

import std.stdio;
import std.string;
import Subject

class Observer{
      ~this(){} //distructor for observer
      
       this(){} // costructor for observer
       
       Update(Subject* b){}
       }

class Subscriber{
      Update(Subject* b);
      }

class SubscriberG{
      this (string a){
           indirizzo_e_mail_G = a;
           }
      
      Update (Subject* b){
             writefln("Subscriber tipo G->", "Name blog: ", ((Blog *)b).GetName());
             ((Blog *)b).GetTitle();
             ((Blog *)b).GetLine();
             writefln("Autore Ultimo Post: ",((Blog *)b).GetAuthor());
             writefln("");
             writefln("");
             }
      }
      
class SubscriberS{
      this (string a, string b){
           indirizzo_e_mail_S = a;
           name_author = b;
           }

      Update (Subject* b){
             if (name_author == ((Blog *)b).GetAuthor()){
                writefln("Subscriber tipo S->", "Name blog: ", ((Blog *)b).GetName());
                ((Blog *)b).GetTitle();
                ((Blog *)b).GetText();
                writefln("Autore ultimo Post: ",((Blog *)b).GetAuthor());
                }
             writefln("");
             writefln("");
             }
      }