uni-m.cds-adv-prog/ex8.2/main.cpp

#include <iostream>
#include "Employee.hh"
#include "Manager.hh"

void populate_directory( set<Employee*>& directory ) {
	// Ownership of caller
	Employee* wouter = new Employee( "Wouter" , 2);
	Employee* ivo = new Employee( "Ivo", 3);
	Manager* stan = new Manager("Stan", 4);
	Manager* jo = new Manager("Jo", 5);
	Manager* frank = new Manager("Frank", 6);

	stan->addSubordinate( *wouter );
	stan->addSubordinate( *ivo );

	directory.insert( stan );
	directory.insert( wouter );

   	// This does not give a problem because stan is also of type Employee
	frank->addSubordinate( *stan );
	frank->addSubordinate( *jo );

	directory.insert( wouter );
	directory.insert( ivo );
	directory.insert( stan );
	directory.insert( jo );
	directory.insert( frank );

}

/* 
 * Without the virtual keyword in front of Employee:businessCard(),
 * this function only gives the Employee type of businessCard(), instead of the Manager's variant if applicable
 */
void printAllCards( const set<Employee*>::iterator begin, const set<Employee*>::iterator end) {
	for ( auto it = begin ; it != end ; ++it ) {
		(*it)->businessCard();

		std::cout << std::endl;
	}
}


int main() {
	set<Employee*> directory;
	populate_directory( directory );

	printAllCards( directory.begin(), directory.end() );

	// Delete the contents of the directory
	for ( auto it = directory.begin() ; it != directory.end() ; ++it ) {
		delete (*it);
	}

	return 0;
}