Forum: C++, Något som spökar?

 
#include<iostream>
#include<vector>
 
using namespace std;
 
template<class Object>
class Cref{
public:
Cref() : obj(NULL){}
explicit Cref(const Object &x ) : obj(&x) {}
const Object &get() const{
	if( isNull() )
	 throw "NULL";
	else return *obj;}
bool isNull() const{ return obj==NULL; }
private:
const Object *obj;
};
 
 
template<class Object>
Cref<Object> find3( const vector<Object> &v, const Object &x ) {
 
for ( int i=0; i<v.size();i++ ){
    if( v[i] == x )
     return Cref<Object>( v[i] );
}
return Cref<Object>();
}
 
struct Person {
Person() {}
Person ( const char *nr, int ink=0 ) : inkomst(ink) { strcpy(pnr,nr); }
bool operator==( const Person &rhs ) const { return strcmp( pnr, rhs.pnr ) == 0; }
char pnr[12];
int inkomst;
};
 
int main(){
 
vector<Person> pv;
pv.push_back( Person("134236-7890",98437) );
pv.push_back( Person("694243-3852",39483) );
pv.push_back( Person("156426-5833",65832) );
pv.push_back( Person("810426-1953",67800) );
pv.push_back( Person("420421-4965",39582) );
 
 
Person person("810426-1953",67800 );
 
Cref<Person> c;
 
c=find3(pv,person);
 
if (c.isNull() )
cout << "Personen du söker finns ej" << endl;
else
cout << c.get(); // klagar på detta?
 
return 0;
}
 

 
struct Person {
	Person() {}
	Person (const char *nr, int ink=0 ) : inkomst(ink)
	{
		strcpy (pnr, nr);
	}
 
	bool operator== ( const Person &rhs ) const {
		return strcmp( pnr, rhs.pnr ) == 0;
	}
 
	/* Tillagt */
	friend ostream& operator<< (ostream& os, const Person& p)
	{
		os << p.pnr << " (inkomst: " << p.inkomst << " kr)" << endl;
 
		return os;
	}
	/**********************************/
 
	char pnr[12];
	int inkomst;
};