Question

I have base class (virtual), with some children, and an array with pointers on base classes. When I create new object and then add its adress to the array, its ok. But when instead of adding adress I use new class(), the PARENT function is called, not the CHILD. Example code:

class base
{
public:
    virtual int foo() {return 1;};
};

class child : public base
{
  int foo() {return 2;};
};

//somewhere in code...

vector<base*> arr;

//1. Its ok:
child one;
arr.push_back(&one);
cout<<arr[0].foo(); //Its 2

//2. Its not ok...
arr.push_back(new child())

cout<<arr[1].foo(); //Its 1...

Thanx for ay help…

EDIT:

Im sorry, it was compiler fault – Downloaded MinGW and works fine… Sorry for problem…

Answer 1

foo is not public in child

class child : public base
{   
public:
  int foo() {return 2;};
};  

also while I am here it should be

arr[0]->foo();

so

child one;
arr.push_back(&one);
arr.push_back(new child());
for(const base* b : arr)//C++11
    std::cout << b->foo() << '\n';

result

2
2