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Полиморфизм. Простейшее ДЕМО.
#include <iostream> ///--------------------------| /// Интерфейс животного. | ///--------------------------: struct Animal {virtual void speak() = 0; }; ///--------------------------| /// Кот. | ///--------------------------: struct Kat : public Animal { void speak(){ std::cout << "miau\n"; } }; ///--------------------------| /// Собака. | ///--------------------------: struct Dog : public Animal { void speak(){ std::cout << "gavf\n"; } }; ///--------------------------| /// Тест. | ///--------------------------: int main() { Kat kat; Dog dog; Animal* animals[2] = { &dog, &kat}; ///----------------------| /// Разное поведение. | ///----------------------: for(const auto& a : animals) { a->speak(); } }
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