employee.h

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#pragma once
 
#include <iostream>
#include <string>
 
class Employee
{
    public:
        explicit Employee(const std::string& name); // explicit suggested by Intel compiler for a on-element parameter list in constructor
        virtual ~Employee();
 
        Employee(Employee const&) = default;
        Employee& operator=(Employee const&) = default;
 
        std::string const & Get_name() const
        {return _name;}
 
 
        virtual void print(std::ostream& s) const;
 
        virtual float payment() const  = 0;   // rein virtuell
//            {return 0.0f; }                // da war die Methode nur virtuell
 
        int get_Counter() const {return _counter;}
 
    protected:
    private:
        std::string _name;        
        static int _counter; 
};
 
std::ostream& operator<<(std::ostream &s, const Employee& org);     // Deklaration
 
// ---------------  new for application of STL
// needed for sorting of elements
inline bool operator<(const Employee& lhs, const Employee& rhs)
{
    return lhs.payment() < rhs.payment();
}