UChar

`sig type t exception Out_of_range val char_of : UChar.t -> char val of_char : char -> UChar.t val code : UChar.t -> int val chr : int -> UChar.t external uint_code : UChar.t -> int = "%identity" val chr_of_uint : int -> UChar.t external unsafe_chr_of_uint : int -> UChar.t = "%identity" val eq : UChar.t -> UChar.t -> bool val compare : UChar.t -> UChar.t -> int type uchar = UChar.t val int_of_uchar : UChar.uchar -> int val uchar_of_int : int -> UChar.uchar end`