anchor.diff:  
   uniform(N) ->
       {X, Seed} = uniform_s(N, seed()),
  -    seed_put(Seed),
  +    _ = seed_put(Seed),
       X.
   
   %% uniform_s/1: given a state, uniform_s/1
  
positive.code: -define(DEFAULT_ALG_HANDLER, as183).
  -define(SEED_DICT, random_seed).
  
  -record(alg, {seed0, seed, uniform, uniform_n}).
  
  %% =====================================================================
  %% Types
  
negative.code: 
  uniform() ->
      {X, Seed} = uniform_s(seed()),
      _ = seed_put(Seed),
      X.
  
  %% uniform/1: given an integer N >= 1,
  