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#include <iostream>
using namespace std;
 
const int DAYS = 0x08;
 
class Date
{
private:
	uint8_t day, month, year;
 
public:
	Date():day(1), month(1), year(00)  {} // Initialisierungsliste mit konstante Parameterwerten
	// Initialisierungsliste über parametrisierten Konstruktor
	Date(uint8_t _day, uint8_t _month, uint8_t _year):day(_day), month(_month), year(_year) {}
 
    uint8_t GetDay();		// Methode
};
 
uint8_t Date::GetDay()
{
    return day;
}
 
class DateString : public Date
{
public:
    DateString():Date() {}
    DateString(uint8_t _day, uint8_t _month, uint8_t _year): Date(_day, _month, _year) {}
 
	int GetDay(int xy) { return 0; }  //  Compiler error: no matching function
};
 
int main()
{
	DateString date1;				// Instanziierung mit Standard Konstruktor und 
	DateString date2(18,4,15);  	// mit parametrisierten Konstruktor
 
	printf("Day 1: %d\n", date1.GetDay());	 // Verwenden der Methode GetDay aus Klasse Date
	printf("Day 2: %d\n", date2.GetDay());
  return 0;
}
 

prog.cpp: In function 'int main()':
prog.cpp:38:37: error: no matching function for call to 'DateString::GetDay()'
  printf("Day 1: %d\n", date1.GetDay());  // Verwenden der Methode GetDay aus Klasse Date
                                     ^
prog.cpp:38:37: note: candidate is:
prog.cpp:30:6: note: int DateString::GetDay(int)
  int GetDay(int xy) { return 0; }  //  Compiler error: no matching function
      ^
prog.cpp:30:6: note:   candidate expects 1 argument, 0 provided
prog.cpp:39:37: error: no matching function for call to 'DateString::GetDay()'
  printf("Day 2: %d\n", date2.GetDay());
                                     ^
prog.cpp:39:37: note: candidate is:
prog.cpp:30:6: note: int DateString::GetDay(int)
  int GetDay(int xy) { return 0; }  //  Compiler error: no matching function
      ^
prog.cpp:30:6: note:   candidate expects 1 argument, 0 provided

Standard output is empty