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why need pointer when i can use n.setAttack(5);//basic polymorphism lesson code? what is actually function of pointer?

19th Jan 2017, 5:57 AM
Sonny Michael
Sonny Michael - avatar
2 ответов
+ 2
This is polymorphism as I understand it. You are operating on a base object, Enemy, that doesn't know about the implementation, only that attack is virtual and will be determined at run time. The benefit is you can write methods accepting the base type rather than individually for each sub.
19th Jan 2017, 9:44 AM
Leon - avatar
+ 1
int main() { Ninja n; Monster m; Enemy *e1 = &n; Enemy *e2 = &m; e1->setAttackPower(20); e2->setAttackPower(80); n.attack(); m.attack(); } /* Output: Ninja! - 20 Monster! - 80 */
19th Jan 2017, 5:58 AM
Sonny Michael
Sonny Michael - avatar