C++ type value cannot be used to initialize a type entity?

Question

C++ / C#

I want to refer to a derived class using a pointer to the base class. Throws an error: "A value of a type cannot be used to initialize an entity of a type." What is wrong and how to fix it?

#include <stdlib.h>
#include <stdio.h>
#include <iostream>
#include <string>
#include <list>

using namespace std;

class Base {
public:

  Base* parent;
  list<Base*> childrens;
  string name;
  bool status;
  bool isRoot;

  Base(string paramName, Base* paramParent) {
    name = paramName;
    parent = paramParent;
  }

  Base(string paramName) {
    name = paramName;
    isRoot = true;
  }

  void AddChildren(Base* children) {
    childrens.push_back(children);
  }

  void SetStatus(bool paramStatus) {
    status = true;
  }
};

class root : Base {
public:
  root(string paramName) : Base(paramName) {
  }
};

int main() {
  root *Root = new root("root");
  Base *b = &Root;
  return 0;
}

Answer 1

Base *b = reinterpret_cast<Base*>(root)