New upstream version 8.1.0

fsck/source/database/SetFragmentCursor.h

@@ -0,0 +1,47 @@
+#ifndef SETFRAGMENTCURSOR_H_
+#define SETFRAGMENTCURSOR_H_
+
+#include <database/SetFragment.h>
+
+template<typename Data>
+class SetFragmentCursor {
+   public:
+      typedef Data ElementType;
+      typedef size_t MarkerType;
+
+   private:
+      SetFragment<Data>* fragment;
+      size_t currentGetIndex;
+
+   public:
+      explicit SetFragmentCursor(SetFragment<Data>& fragment)
+         : fragment(&fragment), currentGetIndex(-1)
+      {}
+
+      bool step()
+      {
+         if (currentGetIndex + 1 >= fragment->size() )
+            return false;
+
+         currentGetIndex++;
+         return true;
+      }
+
+      Data* get()
+      {
+         return &(*fragment)[currentGetIndex];
+      }
+
+      MarkerType mark() const
+      {
+         return currentGetIndex;
+      }
+
+      void restore(MarkerType mark)
+      {
+         currentGetIndex = mark - 1;
+         step();
+      }
+};
+
+#endif