/in/call.cpp:65:28: error: member reference type 'Dlist<customer>' is not a pointer; did you mean to use '.'?
                if(queue[i]->isEmpty()){continue;}
                   ~~~~~~~~^~
                           .
/in/call.cpp:73:29: error: member reference type 'Dlist<customer>' is not a pointer; did you mean to use '.'?
                    queue[i]->insertFront(temp);
                    ~~~~~~~~^~
                            .
2 errors generated.
/in/Compile/Makefile:39: recipe for target 'buildCall' failed
make: *** [buildCall] Error 1