Library Ltac2.String

Require Import Ltac2.Init.

Ltac2 @external make : int -> char -> string := "ltac2" "string_make".
Ltac2 @external length : string -> int := "ltac2" "string_length".
Ltac2 @external get : string -> int -> char := "ltac2" "string_get".
Ltac2 @external set : string -> int -> char -> unit := "ltac2" "string_set".