anchor.diff:  %% in-process API
   -export([new/1, new/0]).
   -export([lookup/2]).
  +
   
   %% useful utility functions
   -export([ip2long/1]).
  
positive.code:     ok = stop(),
      {parse_100k_addr, pytime(EndParse) - pytime(StartParse)}.
  
  bench() ->
      bench(10000).
  
  
negative.code: 
  %% record access API
  -export([get/2]).
  -export([record_fields/0]).
  
  %% gen_server based API
  -export([start/0, start/1, stop/0, lookup/1, lookup_pl/1,
           reload/0, reload/1, filename/0]).
  
  %% gen_server callbacks
  -export([init/1, handle_call/3, handle_cast/2, terminate/2, code_change/3,
  