29 struct Status {  struct
35   Status() = default;  argument
37   Status(unsigned NewMask, unsigned NewMode) : Mask(NewMask), Mode(NewMode) {  in Status()  function
43   Status merge(const Status &S) const {  in merge()  argument
49   Status mergeUnknown(unsigned newMask) {  in mergeUnknown()  argument
55   Status intersect(const Status &S) const {  in intersect()  argument
62   Status delta(const Status &S) const {  in delta()  argument
66   bool operator==(const Status &S) const {  in operator ==()  argument
70   bool operator!=(const Status &S) const { return !(*this == S); }  in operator !=()  argument
72   bool isCompatible(Status &S) {  in isCompatible()  argument
76   bool isCombinable(Status &S) { return !(Mask & S.Mask) || isCompatible(S); }  in isCombinable()  argument