040000 tree 57aead60c14eec98441e3f47ea52bfd29ea550c6	charconv.from.chars
040000 tree 88fe2e0886e2eff1b71cba24906ecf081913ac21	charconv.syn
040000 tree ce4947d0678c0de46df397c668ccf38585199134	charconv.to.chars