//*****************************************************
//esempio di overloading New Delete globale per oggetti
//*****************************************************

#include <iostream>
#include <new>
#include <cstring>
using namespace std;

class user{
	char name[10];
	char surname[10];
public:
	user(){
		strcpy(name,"default");
		strcpy(surname,"default");	
	}
	user(char na[10], char surna[10]){
		strcpy(name,na);
		strcpy(surname, surna);
	}
	void show(){
		cout<<"Name.."<<name<<endl;
		cout<<"Surname.."<<surname<<endl;
	}
};

class member{
	char name[10];
	char surname[10];
	int id;
public:
	member(char na[10],char surna[10],int i){
		strcpy(name,na);
		strcpy(surname,surna);
		id=i;
	}
	void show(){
		cout<<"Name.."<<name<<endl;
		cout<<"Surname.."<<surname<<endl;
		cout<<"id.."<<id<<endl;
	}
};

//-----------------------------------------------------
void *operator new(size_t size){
		void *p;
		cout<<"new overloaded\n";
		p=malloc(size);
		if(!p){
			bad_alloc ba;
			throw ba;
		}
		return p;
	}
	void operator delete(void *p){
		cout<<"delete overloaded\n";
		free(p);
	}
//====================================================
int main(){
	user ob1,ob2("luciano","D'Eugenio");
	ob1.show();
	ob2.show();
	user *p1;
	try{
		p1=new user("marco","polo"); 
		}catch(bad_alloc xa){
				cout<<"Allocatio error\n";
				return 1;
			}
	p1->show();
	delete p1;
	member *p2;
	try{
		p2=new member("amerigo","vespucci",2);
	}catch(bad_alloc xa){
			cout<<"Allocation error\n";
			return 1;
		}
	p2->show();
	delete p2;
	return 0;
}