c++ - Is it possible to access the current 'to create' obj in constructor? -

i writing tree class , want implement constructor creating tree dimension , depth:

public:     tree();                           // empty constructor     tree(int dimension, int depth);   // constructing empty tree     // ...     void            newnode(node<t>* const&, t const&);     // ...   private:     unsigned int mnumnodes;     node<t>      *mroot;   template<typename t> tree<t>::tree(int dimension, int depth):   // member vars {   // other constructing stuff   this->newnode(0, parent); } 

apparently not possible, wrote working function adding new nodes specific parent specific value nice use it.

but: method needs access current object.

maybe there kind of solution working me neither pointing obj possible, nor other kind of access.

the problem isn't constructor. @ point execution enters body of constructor, object constructed tree<std::basic_string<char> >. means can use object instance of class in body of constructor.

the problem using object such in constructor if actual object being constructed derived class of class @ hand. it's knowledge doesn't exist yet in constructor of parent class. it's best not call virtual functions within constructor. it's okay call non-virtual member function within constructor. problem derived class constructors might change things in parent class.

that's not what's happening here. problem here use of 0 node<t>* const&. won't work, period. if did work, change value of zero.

based on incomplete code have posted, getting rid of ampersand in declaration of first argument newnode trick.