As in the subject I need operator which will work with pointers so I do not have to call *a>*b
but a>b
. For example my operator <<
works with the pointers ok:
friend ostream& operator<< (ostream &wyjscie, Para const* ex){
wyjscie << "(" << ex->wrt << ", " << ex->liczbaWystapien <<")"<< endl;
return wyjscie;
}
but this one give me an error:
friend bool operator> (Para const *p1, Para const *p2){
return p1->wrt > p2->wrt;
}
Error 1 error C2803: 'operator >' must have at least one formal parameter of class type
Unfortunately, there isn't a way to overload an operator with two pointer values. This has to do with the ambiguity of such an overloaded operator.
However, you can do this with references instead - but you'd still need to use the *
operator if you want to keep pointers:
friend bool operator> (Para const &p1, Para const &p2){
return p1.wrt > p2.wrt;
}
Your overloaded << works because it is being called on an ostream object (ostream.operator<<()).
The pointer overload of operator < does not work because a pointer is not a class so the following is meaningless: (const Para*).operator<().
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