История изменений

Исправление vvviperrr, 08.05.14 16:53 (текущая версия) :

#include <iostream>
#include <memory>
#include <array>

using std::cout;
using std::endl;

class A {
public:
	virtual ~A() {}
	virtual void foo() = 0;
};

class B : public A {
public:
	virtual void foo() override {
		cout << "B::foo" << endl;
	}
};

class C : public A {
public:
	virtual void foo() override {
		cout << "C::foo" << endl;
	}
};

class D : public A {
public:
	virtual void foo() override {
		cout << "D::foo" << endl;
	}
};

int main(void) {
	std::array<std::unique_ptr<A>, 3> arr = {
		std::unique_ptr<A>(new B),
		std::unique_ptr<A>(new C),
		std::unique_ptr<A>(new D),
	};

	for (auto &i : arr) {
		i->foo();
	}
}

Исходная версия vvviperrr, 08.05.14 16:53:

#include <iostream>
#include <memory>
#include <array>

using std::cout;
using std::endl;

class A {
public:
	virtual ~A() {}
	virtual void foo() = 0;
};

class B : public A {
public:
	virtual void foo() override {
		cout << "B::foo" << endl;
	}
};

class C : public A {
public:
	virtual void foo() override {
		cout << "C::foo" << endl;
	}
};

class D : public A {
public:
	virtual void foo() override {
		cout << "D::foo" << endl;
	}
};

int main(void) {
	std::array<std::unique_ptr<A>, 3> arr = {
		std::unique_ptr<A>(new B),
		std::unique_ptr<A>(new C),
		std::unique_ptr<A>(new D),
	};

	for (auto &i : arr) {
		i->foo();
	}
}