anchor.diff:  -export([fill_ring_feeder/3]).
   -export([feeder_fix_rangen/2]).
   
  --define(ReplicationFactor, 4).
   -define(VersionMin, 1).
   -define(VersionMax, 1048576). % 1024*1024
   -define(VersionDiffMax, 512).
  
positive.code:           end,
            {[], 0, 1, FCount}, Keys),
      Insert = length(DB),
      DBSize = KeyCount * ?ReplicationFactor,
      {DB, {DBSize, Insert, DBSize - Insert, O}}.
  
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  
negative.code:                     end,
                      {[], FCount, 0}, FCells),
      Insert = length(DB),
      DBSize = KeyCount * config:read(replication_factor),
      {DB, {DBSize, Insert, DBSize - Insert, Out}};
  p_gen_kvv(uniform, Keys, KeyCount, FType, FDest, FCount) ->
      ?DBG_ASSERT(length(Keys) =:= length(lists:usort(Keys))), % unique keys
  