#include <iostream>
#include <vector>
#include <memory>
using namespace std;
class Animal {
public:
string name;
Animal (const std::string& givenName) : name(givenName) {
}
string speak () {
return "";
}
};
class Dog: public Animal {
public:
Dog (const std::string& givenName) : Animal (givenName) {
}
string speak ()
{ return "Woof, woof!"; }
};
class Cat: public Animal {
public:
Cat (const std::string& givenName) : Animal (givenName) {
}
string speak ()
{ return "Meow..."; }
};
int main() {
std::vector<std::unique_ptr<Animal>> animals;
animals.push_back( new Dog("Skip") );
animals.push_back( new Cat("Snowball") );
for( int i = 0; i< animals.size(); ++i ) {
cout << animals[i]->name << " says: " << animals[i]->speak() << endl;
}
}