040000 tree 3ee2bf49824addaf3625b9d92a952594cc9f6a63	charconv.from.chars
040000 tree 88fe2e0886e2eff1b71cba24906ecf081913ac21	charconv.syn
040000 tree c50a4b8c4f98d8b2ff9eece4f71dfdc7e882655a	charconv.to.chars