Hello, is it possible to return exemplar of object using passed type name (string) in c++? I have some base abstract class Base and a few derivates. Example code:

class Base
{
   /* ... */
};

class Der1 : public Base
{
   /* ... */
};

class Der2 : public Base
{
   /* ... */
};

And I need function like:

Base *objectByType(const std::string &name);

Number of derivates classes are changeable and I don't want to make something like switching of name and returning by hands new object type. Is it possible in c++ to do that automatically anyway?

p.s. usage should looks like:

dynamic_cast<Der1>(objectByType("Der1"));

I need pure c++ code (crossplatform). Using boost is permissible.