register Lst	nList;  PAlloc(nList, Lst);  nList->firstPtr = NULL; nList->lastPtr = NULL; nList->isOpen = FALSE; nList->atEnd = Unknown;  return nList;
l->firstPtr = NULL; l->lastPtr = NULL; l->isOpen = FALSE; l->atEnd = Unknown;
Lst_Init(){    register Lst	nList;    PAlloc(nList, Lst);    nList->firstPtr = NULL;    nList->lastPtr = NULL;    nList->isOpen = FALSE;    nList->atEnd = Unknown;    return nList;}