In file included from Queue.h:7:0,
                 from Queue.C:4:
Stack.h:30:13: error: declaration of ‘class T’
   template <class T>
             ^
In file included from Queue.h:7:0,
                 from Queue.C:4:
Stack.h:18:10: error:  shadows template parm ‘class T’
 template<class T>
          ^
In file included from Stack.C:5:0:
Stack.h:30:13: error: declaration of ‘class T’
   template <class T>
             ^
In file included from Stack.C:5:0:
Stack.h:18:10: error:  shadows template parm ‘class T’
 template<class T>
          ^
In file included from Queue.h:7:0,
                 from main.C:2:
Stack.h:30:13: error: declaration of ‘class T’
   template <class T>
             ^
In file included from Queue.h:7:0,
                 from main.C:2:
Stack.h:18:10: error:  shadows template parm ‘class T’
 template<class T>
          ^
In file included from Stack.h:87:0,
                 from Queue.h:7,
                 from main.C:2:
Stack.C: In instantiation of ‘Stack<T>::Stack(const Stack<T>&) [with T = int]’:
Stack.C:18:23:   required from ‘std::ostream& operator<<(std::ostream&, Stack<T>&) [with T = int; std::ostream = std::basic_ostream<char>]’
main.C:27:9:   required from here
Stack.C:62:5: error: no match for ‘operator~’ (operand type is ‘Stack<int>’)
     ~Stack();
     ^
Stack.C:62:5: note: candidates are:
In file included from /usr/include/c++/4.8/ios:42:0,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from Queue.h:5,
                 from main.C:2:
/usr/include/c++/4.8/bits/ios_base.h:87:3: note: std::_Ios_Fmtflags std::operator~(std::_Ios_Fmtflags)
   operator~(_Ios_Fmtflags __a)
   ^
/usr/include/c++/4.8/bits/ios_base.h:87:3: note:   no known conversion for argument 1 from ‘Stack<int>’ to ‘std::_Ios_Fmtflags’
/usr/include/c++/4.8/bits/ios_base.h:127:3: note: std::_Ios_Openmode std::operator~(std::_Ios_Openmode)
   operator~(_Ios_Openmode __a)
   ^
/usr/include/c++/4.8/bits/ios_base.h:127:3: note:   no known conversion for argument 1 from ‘Stack<int>’ to ‘std::_Ios_Openmode’
/usr/include/c++/4.8/bits/ios_base.h:165:3: note: std::_Ios_Iostate std::operator~(std::_Ios_Iostate)
   operator~(_Ios_Iostate __a)
   ^
/usr/include/c++/4.8/bits/ios_base.h:165:3: note:   no known conversion for argument 1 from ‘Stack<int>’ to ‘std::_Ios_Iostate’
make: *** [*.o] Error 1