When I was learning CPP to do exercises, I met error, and asked the boss to solve the problem.

I am using cPP primer to learn the class. When I use vs code to do exercises after the book, I encounter a mistake and don"t know how to solve it.

this is the related code, and the title requires "add the correct constructor to the Person class"

-sharpinclude<iostream>
-sharpinclude<string>
using namespace std;
class Person
{
    private:
      string strName;
      string strAddress;
    public:
      Person() = default;
      Person(const string &name,const string &add)
      {
          strName = name;
          strAddress = add;
      }
      Person(std::istream &is) { is >> *this; }

    public:
      string getName() const { return strName; }
      string getAddress() const { return strAddress; }
      std::istream &read(std::istream &is, Person &per)
      {
          is >> per.strName >> per.strAddress;
          return is;
      }
      std::ostream &print(std::ostream &os, const Person &per)
      {
          os << per.getName() << per.getAddress ();
          return os;
      }
};

error occurs here at run time

The

code is entered according to the answers to the after-class exercises. I don"t know how to solve the error. I want to ask the boss to solve it. Thank you very much.

-sharppragma once -sharpinclude <iostream> -sharpinclude <string> class Person{ friend std::istream &read(std::istream &is, Person &per); public: Person() = default; Person(const std::string &name, const std::string &add) { strName = name; strAddress = add; } Person(std::istream &is) { read(is, *this); } std::string getName() const { return strName; } std::string getAddress() const { return strAddress; } private: std::string strName; std::string strAddress; }; std::istream &read(std::istream &is, Person &per) { is >> per.strName >> per.strAddress; return is; } std::ostream &print(std::ostream &os, const Person &per) { os << per.getName() << per.getAddress(); return os; }