2009/1/14 Germán Diago <germandiago@gmail.com>
What's wrong with this code? When I push_back ptr to the vector, it pushes 0 instead of
the value contained in ptr (which I checked and is non-zero).
Try this:
std::vector<boost::shared_ptr<BaseClass> > baseobjects = get_base_objects(path);
std::vector<boost::shared_ptr<DerivedClass> > result(get_base_objects.size());
BOOST_FOREACH (boost::shared_ptr<BaseClass> en, baseobjects)
{
boost::shared_ptr<DerivedClass> ptr = boost::dynamic_pointer_cast<DerivedClass>(en);
if (!ptr)
std::cout << "Dynamic cast failed!" << std::endl;
result.push_back(ptr);
if (!result.back())
std::cout << "Push back failed!" << std::endl;
}
And check what it prints.
Roman Perepelitsa.