In file included from /in/compile/Dlist.h:80:0,
                 from /in/compile/dlist_driver.cpp:6:
/in/DlistImpl.h: In instantiation of 'void Dlist<T>::copyAll(const Dlist<T>&) [with T = int]':
/in/DlistImpl.h:104:12:   required from 'Dlist<T>::Dlist(const Dlist<T>&) [with T = int]'
/in/compile/dlist_driver.cpp:124:27:   required from here
/in/DlistImpl.h:138:31: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
     if (!l.isEmpty() && !this == &l)
                         ~~~~~~^~~~~
/in/compile/Makefile:10: recipe for target 'buildDlist' failed
make: *** [buildDlist] Error 1