From inspection only: LGTM, thanks!
https://codereview.appspot.com/557190043/diff/581490044/lily/lookup.cc File lily/lookup.cc (right): https://codereview.appspot.com/557190043/diff/581490044/lily/lookup.cc#newcode314 lily/lookup.cc:314: int i0 = (int) i; Maybe 'int(i)' instead? https://codereview.appspot.com/557190043/
