// Faan Tone Liu
// Demo Program for comp 1672
// Shows how to use the member initializer list in a constructor

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

// This class has a couple of data members - it's just for example purposes
class num_and_name {
public:
    num_and_name();             // default constructor
    num_and_name(int, string);  // constructor
    void print();
private:
    int num;
    string name;
};

num_and_name::num_and_name()   // the member initializer list comes after
    : num(0)                   // a colon after the constructor header.  We're
                               // allowed to just initialize some data members.
{                              // The default constructor for our string
}                              // member name is automatically called

num_and_name::num_and_name(int n, string s)
    : num(n), name(s)            // the member initialization list is comma
{                                // separated.  Here we initialize all data
}                                // members using the member initialize list.

void num_and_name::print()
{
    cout << name << ": " << num;
}

int main()
{
     num_and_name him(25, "Joe");   // On this line, the constructor is called
     him.print();                   // Note that, sure enough, the data members
     cout << endl;                  // were properly initialized.
}