在类中创建指向另一个对象的指针

Question

May someone please help me correct the following. I'm trying to wrap my head around how to create a pointer to an existing object within a new object. I can't get the syntax correct and keep getting errors.

Here's my code:

class Country
{
    string name; 
public:
    Country (string name)
    {   name = name; 
        cout << "Country has been created" << endl;}

    ~Country()
    {cout << "Country destroyed \n";}

};

class Person
{
    //string name;
    //Date dateOfBirth;
    Country *pCountry; 

public:
    Person(Country *c):
      pCountry(c)
      {}

};




int main()
{
    Country US("United States");
    Person(&US)

    return 0;
}

Answer 1

Did you forget in your main.cpp?

#include <string>
#include <iostream>
using namespace std;

you also need a semicolon in your main:

int main()
{
    Country US("United States");
    Person person(&US); // < -- variable name and semicolon missing

    return 0;
}

You should also change:

Country (string name)
{
   this->name = name; // <--  assign name to member variable
   ...

or better, use member initializer lists :

Country (string name) : name(name) // <--  assign name to member variable
{
   ...

And in general you should try to be consistent with the way you format your code.