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23 lines
675 B
OCaml
23 lines
675 B
OCaml
(** {2 Parametrized IO Interface} *)
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module type IO = sig
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type 'a t
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val return : 'a -> 'a t
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val failwith : string -> 'a t
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val ( let+ ) : 'a t -> ('a -> 'b) -> 'b t
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val ( let* ) : 'a t -> ('a -> 'b t) -> 'b t
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val ( and+ ) : 'a t -> 'b t -> ('a * 'b) t
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type env
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type in_channel
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type out_channel
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val stdin : env -> in_channel
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val stdout : env -> out_channel
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val read : in_channel -> bytes -> int -> int -> unit t
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val read_line : in_channel -> string t
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val write : out_channel -> bytes -> int -> int -> unit t
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val write_string : out_channel -> string -> unit t
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val fail : exn -> unit t
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val catch : (unit -> 'a t) -> (exn -> 'a t) -> 'a t
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end
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