# Module Char

    module Char: sig  end

Character operations.

    val code : char -> int

Return the ASCII code of the argument.

    val chr : int -> char

Return the character with the given ASCII code. Raise `Invalid_argument "Char.chr"` if the argument is outside the range 0--255.

    val escaped : char -> string

Return a string representing the given character, with special characters escaped following the lexical conventions of Objective Caml.

    val lowercase : char -> char

Convert the given character to its equivalent lowercase character.

    val uppercase : char -> char

Convert the given character to its equivalent uppercase character.
`type t = `char``
An alias for the type of characters.

    val compare : t -> t -> int

The comparison function for characters, with the same specification as `Pervasives.compare`. Along with the type `t`, this function `compare` allows the module `Char` to be passed as argument to the functors `Set.Make` and `Map.Make`.