44                       const changesetlist_ty &Sets) {  in Delta()  argument
46   UpdatedSearchState(Changes, Sets);  in Delta()
49   if (Sets.size() <= 1)  in Delta()
54   if (Search(Changes, Sets, Res))  in Delta()
59   for (const changeset_ty &Set : Sets)  in Delta()
61   if (SplitSets.size() == Sets.size())  in Delta()
68                             const changesetlist_ty &Sets,  in Search()  argument
71   for (changesetlist_ty::const_iterator it = Sets.begin(),  in Search()
72          ie = Sets.end(); it != ie; ++it) {  in Search()
75       changesetlist_ty Sets;  in Search()  local
76       Split(*it, Sets);  in Search()
77       Res = Delta(*it, Sets);  in Search()
83     if (Sets.size() > 2) {  in Search()
91         ComplementSets.insert(ComplementSets.end(), Sets.begin(), it);  in Search()
92         ComplementSets.insert(ComplementSets.end(), it + 1, Sets.end());  in Search()
108   changesetlist_ty Sets;  in Run()  local
109   Split(Changes, Sets);  in Run()
111   return Delta(Changes, Sets);  in Run()