CS202
6- ‹#›
== and != Operators
Notice why a “first” and
“second” shouldn’t be data members:
n
bool list::operator ==
(const list & l2) const {
node * first = head;
node * second = l2.head;
while (first && second &&
first->obj == second->obj) {
first = first->next;
second = second->next;
}
if (first || second) return FALSE;
return TRUE;
}
n
Evaluate the efficiency of
the following:
n
bool list::operator !=
(const list & l2) const {
return !(*this == l2);
}