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(*
Title: Standard Basis Library: Imperative IO Signature
Copyright David C.J. Matthews 2000
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*)
(* G&R 2004 status: checked, no change *)
signature IMPERATIVE_IO =
sig
structure StreamIO : STREAM_IO
type vector = StreamIO.vector
type elem = StreamIO.elem
type instream
type outstream
val input : instream -> vector
val input1 : instream -> elem Option.option
val inputN : instream * int -> vector
val inputAll : instream -> vector
val canInput : instream * int -> int Option.option
val lookahead : instream -> elem Option.option
val closeIn : instream -> unit
val endOfStream : instream -> bool
val output : outstream * vector -> unit
val output1 : outstream * elem -> unit
val flushOut : outstream -> unit
val closeOut : outstream -> unit
val mkInstream : StreamIO.instream -> instream
val getInstream : instream -> StreamIO.instream
val setInstream : instream * StreamIO.instream -> unit
val mkOutstream : StreamIO.outstream -> outstream
val getOutstream : outstream -> StreamIO.outstream
val setOutstream : outstream * StreamIO.outstream -> unit
val getPosOut : outstream -> StreamIO.out_pos
val setPosOut : outstream * StreamIO.out_pos -> unit
end;
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