Module Std.Char

include module type of struct include Char end
val code : char -> int @@ portable

Return the ASCII code of the argument.

val chr : int -> char @@ portable

Return the character with the given ASCII code.

val escaped : char -> string @@ portable

Return a string representing the given character, with special characters escaped following the lexical conventions of OCaml. All characters outside the ASCII printable range (32..126) are escaped, as well as backslash, double-quote, and single-quote.

val lowercase_ascii : char -> char @@ portable

Convert the given character to its equivalent lowercase character, using the US-ASCII character set.

  • since 4.03
val uppercase_ascii : char -> char @@ portable

Convert the given character to its equivalent uppercase character, using the US-ASCII character set.

  • since 4.03
type t = char

An alias for the type of characters.

val compare : t -> t -> int @@ portable

The comparison function for characters, with the same specification as Stdlib.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.

val equal : t -> t -> bool @@ portable

The equal function for chars.

  • since 4.03
val seeded_hash : int -> t -> int @@ portable

A seeded hash function for characters, with the same output value as Hashtbl.seeded_hash. This function allows this module to be passed as argument to the functor Hashtbl.MakeSeeded.

  • since 5.1
val hash : t -> int @@ portable

An unseeded hash function for characters, with the same output value as Hashtbl.hash. This function allows this module to be passed as argument to the functor Hashtbl.Make.

  • since 5.1
val is_lowercase : char -> bool
val is_uppercase : char -> bool
val is_strictly_lowercase : char -> bool
val is_strictly_uppercase : char -> bool