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Printing vector problem.

irinaki (4)
this is a part of my program. it seems tha in my printing function vprint has a problem

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   class Scedule
{
vector<Appointment> m_apps;

public:
  void addAppointment(Appointment const & app)
  {
     m_apps.push_back(app);
  }
                               
                     
//friend void vprint;                   
friend class Appointment;
friend class MyDate;
};     


void vprint(vector <Appointment> m_apps,int i)


{
{
     for (int i = 0; i < m_apps.size(); i++)
    cout << m_apps[i] << endl; //problem
     }


}


int main(int argc, char *argv[])
{
    Appointment app;
    Scedule mySced;
    MyDate dt;
      
    app.set_description("Ravtevou");
    dt.set_date("15/4/02");
    dt.set_hour("14:00");
    mySced.addAppointment(app);
    vprint(app);
    print(app,dt);
    system("pause");
    return 0;
}


here is the message

C:\Documents and Settings\irini\ÅðéöÜíåéá åñãáóßáò\main.cpp In function `void vprint(std::vector<Appointment, std::allocator<Appointment> >, int)':

90 C:\Documents and Settings\irini\ÅðéöÜíåéá åñãáóßáò\main.cpp no match for 'operator<<' in 'std::cout << (&m_apps)->std::vector<_Tp, _Alloc>::operator[] [with _Tp = Appointment, _Alloc = std::allocator<Appointment>](((unsigned int)i))'
Computergeek01 (5613)
Unless your class "Appointment" overloaded the "<<" operator then I expect you meant to print a certain data member of that class instead of the class itself.
irinaki (4)
so i must specify the data that i want to print?i post my whole code. Sorry but i'm greek and i dont understand perfect english..
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#include <iostream>
#include <vector>
#include <string>
using namespace std;
class Appointment;

class MyDate
{
      private:
             string date;
             string hour;
             
      public:           
             
             MyDate(){};//constructor xoris parametrous//
             
             
             void set_date(string _date)
                  {
                     date=_date;
                     } 
                     
             void set_hour(string _hour)
                  {
                        hour=_hour;
                       }                            
                                  
                     
                     
            friend void print(Appointment &,MyDate &)    ;     
            friend class Scedule;
                     
                     };                          
class Appointment
{
      private: 
      string description;
      string date;
      string hour;         
      public:
             
             
         Appointment(){};//constructor xoris parametrous//        
                                              
                            
            void set_description(string _description)
            {
                 description=_description;
                 }                
                            
                   
                   friend class MyDate;
                   friend class Scedule;
                   
               friend void print(Appointment &, MyDate &);
                                     
            };

         void print(Appointment &a,MyDate &d)
               {
                    cout<<"description of appointment "<<a.description<<endl;
                    cout<<"date "<<d.date<<"  hour "<<d.hour<<endl;
                    } 
                                                          
                    
            
    class Scedule
{
vector<Appointment> m_apps;

public:
  void addAppointment(Appointment const & app)
  {
     m_apps.push_back(app);
  }
                               
                     
                
friend class Appointment;
friend class MyDate;
};     


void vprint(vector <Appointment> m_apps,int i)


{
{
     for (int i = 0; i < m_apps.size(); i++)
    cout << m_apps[i] << endl; 
     }


}


int main(int argc, char *argv[])
{
    Appointment app;
    Scedule mySced;
    MyDate dt;
      
    app.set_description("Ravtevou");
    dt.set_date("15/4/02");
    dt.set_hour("14:00");
    mySced.addAppointment(app);
    vprint(app);
    print(app,dt);
    system("pause");
    return 0;
}

Computergeek01 (5613)
Is "print(...)" on Line 59 intended to be a member function of the "Appointment" class? Because you need to Set it up as such if that's the case.
irinaki (4)
this one
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        void print(Appointment &a,MyDate &d)
               {
               cout<<"description of appointment "<<a.description<<endl;
                   cout<<"date "<<d.date<<"  hour "<<d.hour<<endl;
                    }


is for other use. does not create problem in compiling. the problem is to the function

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void vprint(vector <Appointment> m_apps,int i)


{
{
     for (int i = 0; i < m_apps.size(); i++)
    cout << m_apps[i] << endl; //here is the compiling error
     }

Computergeek01 (5613)
The problem is that you are trying to display private data memebers of your "Appointment" class trough another class. I thought that your "print(...)" function was intended to do this but if it isn't then you need to write up a simular function to retrieve the data.
irinaki (4)
thank you. I'll try to fix it!
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