Eroare de compilare: user.cpp:50:65: warning: friend declaration ‘void SetInfo(ListIterator<T>&, Nod<T>*)’ declares a non-template function [-Wnon-template-friend] friend void SetInfo (ListIterator<T>& iterator, Nod<T>* nod); ^ user.cpp:50:65: note: (if this is not what you intended, make sure the function template has already been declared and add <> after the function name here) user.cpp: In instantiation of ‘Queue<T>::Queue() [with T = int]’: user.cpp:462:38: required from here user.cpp:328:14: warning: unused variable ‘l’ [-Wunused-variable] List<T>* l=new List<T>(); ^ user.cpp: In instantiation of ‘Nod<T>::Nod(const T&) [with T = int]’: user.cpp:356:32: required from ‘void Queue<T>::Push(const T&) [with T = int]’ user.cpp:463:18: required from here user.cpp:11:7: warning: ‘Nod<int>::Next’ will be initialized after [-Wreorder] Nod* Next; ^ user.cpp:10:7: warning: ‘Nod<int>* Nod<int>::Prev’ [-Wreorder] Nod* Prev; ^ user.cpp:102:1: warning: when initialized here [-Wreorder] Nod<T>::Nod (const T& info) : ^ /tmp/ccSqYflK.o: In function `main': user.cpp:(.text.startup+0x3cf): undefined reference to `SetInfo(ListIterator<int>&, Nod<int>*)' collect2: error: ld returned 1 exit status