Need help to fix the function

[Burden]

class Demo {
     private:
          int value;
     public:
          int getValue() { return value; }
          void setValue(int value) { value = value; }
};
void display( const Demo & d )
{
     cout << d.getValue() << endl;
}
void getInput( const Demo & d )
{
     int value;
     cout << "Enter an integer";
     cin >> value;
     d.setValue(value);
}

I don't know the problem of it, since my instructor not offerd a test driver for me.

[Thomas1965]

This should work

#include <iostream>
#include <string>
#include <cstdlib>

using namespace std;

class Demo 
{
     private:
          int value;
     public:
          int getValue() { return value; }
          void setValue(int value) { this->value = value; }
};

void display(Demo &d)
{
     cout << d.getValue() << endl;
}

void getInput(Demo &d )
{
     int value;
     cout << "Enter an integer";
     cin >> value;
     d.setValue(value);
}

int main(void)
{
  Demo demo;
  
  getInput(demo);
  display(demo);

  system("pause");
  return EXIT_SUCCESS;
}

[Burden]

Thanks a lot. It works!