#include <iostream>
#include <string>

using namespace std;

class DemoT{
   public:
       DemoT() {
           mySerial = ++serial; 
       }

       int Serial() const {
          return mySerial;
       }

       static string Name() {
           string value = "I am a " + BASE_NAME + " and my number is ";
                  value +=  to_string(MY_NUMBER);
           //cout << anum << endl;
           cout << "bnum is " << bnum << endl;
           return value;
       }

       void ReportAndChange(){
           cout << "bnum is " << bnum << endl;
           bnum++;
       }

       static string Name2();


   private:
       static const int MY_NUMBER{7};
       static const string BASE_NAME;
       static const inline string OTHER_NAME{"Fred"};
       int anum {5};
       static inline int bnum{4};
       static int cnum;
       static inline int serial{0};
       int mySerial;
};

// note no static here.
const string DemoT::BASE_NAME{"A DemoT Class"};
int DemoT::cnum{11};

string DemoT::Name2(void) {
    return DemoT::Name()+ " too!";
}

int main() {
    cout << "The name functions for DemoT: " << endl;
    cout << DemoT::Name() << endl;
    cout << DemoT::Name2() << endl;

    DemoT a,b;

    cout << " A's serial number is " << a.Serial() << endl;
    cout << " B's serial number is " << b.Serial() << endl;

    a.ReportAndChange();
    b.ReportAndChange();
    a.ReportAndChange();

    return 0;
}