# Structure NJ93

Identifier index | Structure index
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    (* NJ93 -- compatibility SML/NJ 0.93 top-level environment *)

    val print     : string -> unit

    (* NJ93 Integer *)

    val max       : int * int -> int
    val min       : int * int -> int

    (* NJ93 List *)

    exception Hd and Tl and Nth and NthTail

    val hd        : 'a list -> 'a             (* Hd *)
    val tl        : 'a list -> 'a list        (* Tl *)
    val nth       : 'a list * int -> 'a       (* Nth *)
    val nthtail   : 'a list * int -> 'a list  (* NthTail *)
    val app       : ('a -> 'b) -> 'a list -> unit
    val revapp    : ('a -> 'b) -> 'a list -> unit
    val fold      : ('a * 'b -> 'b) -> 'a list -> 'b -> 'b
    val revfold   : ('a * 'b -> 'b) -> 'a list -> 'b -> 'b

    (* NJ93 Real *)

    val ceiling   : real -> int
    val truncate  : real -> int

    (* NJ93 Ref *)

    val inc       : int ref -> unit
    val dec       : int ref -> unit

    (* NJ93 String *)

    exception Substring

    val ordof     : string * int -> int
    val ord       : string -> int                   (* Ord *)
    val chr       : int -> string                   (* Chr *)
    val substring : string * int * int -> string    (* Substring *)
    val explode   : string -> string list
    val implode   : string list -> string

    (* NJ93 top-level math functions *)

    val sqrt      : real -> real
    val sin       : real -> real
    val cos       : real -> real
    val arctan    : real -> real
    val exp       : real -> real
    val ln        : real -> real

    (* NJ93 top-level input/output, standard *)

    type instream and outstream

    val std_in        : instream
    val open_in       : string -> instream
    val input         : instream * int -> string
    val lookahead     : instream -> string
    val close_in      : instream -> unit
    val end_of_stream : instream -> bool

    val std_out       : outstream
    val open_out      : string -> outstream
    val output        : outstream * string -> unit
    val close_out     : outstream -> unit

    (* NJ93 top-level input/output, non-standard *)

    val open_in_bin   : string -> instream
    val open_out_bin  : string -> outstream
    val inputc        : instream -> int -> string
    val std_err       : outstream
    val outputc       : outstream -> string -> unit
    val flush_out     : outstream -> unit
    val input_line    : instream -> string
    val can_input     : instream * int -> bool
    val open_append   : string -> outstream

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--- | ---

Moscow ML 2.00