Question

How can I cast an iterator of a vector of shared_ptr type? Consider following example:

typedef boost::shared_ptr < MyClass > type_myClass;

vector< type_myClass > vect;
vector< type_myClass >::iterator itr = vect.begin();

while(itr != vect.end())
{
   //Following statement works, but I wish to rather cast this 
   //to MyClass and then call a function?
   (*itr)->doSomething(); 
}

Answer 1

You do not want to cast, but rather extract a reference to the object:

MyClass & obj = *(*it); // dereference iterator, dereference pointer
obj.doSomething();