functor (S : T_LENGTH_AND_COMPSUB) ->
sig
val index_of_string :
?from:int ->
?sub_index:int -> ?sub_length:int -> S.t -> sub:S.t -> int option
val index_of_string_reverse :
?from:int ->
?sub_index:int -> ?sub_length:int -> S.t -> sub:S.t -> int option
end