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(**************************************************************************)
(* *)
(* OCaml *)
(* *)
(* Valerie Menissier-Morain, projet Cristal, INRIA Rocquencourt *)
(* *)
(* Copyright 1996 Institut National de Recherche en Informatique et *)
(* en Automatique. *)
(* *)
(* All rights reserved. This file is distributed under the terms of *)
(* the GNU Lesser General Public License version 2.1, with the *)
(* special exception on linking described in the file LICENSE. *)
(* *)
(**************************************************************************)
(** Flags that control rational arithmetic. *)
val arith_status: unit -> unit
(** Print the current status of the arithmetic flags. *)
val get_error_when_null_denominator : unit -> bool
(** See {!Arith_status.set_error_when_null_denominator}.*)
val set_error_when_null_denominator : bool -> unit
(** Get or set the flag [null_denominator]. When on, attempting to
create a rational with a null denominator raises an exception.
When off, rationals with null denominators are accepted.
Initially: on. *)
val get_normalize_ratio : unit -> bool
(** See {!Arith_status.set_normalize_ratio}.*)
val set_normalize_ratio : bool -> unit
(** Get or set the flag [normalize_ratio]. When on, rational
numbers are normalized after each operation. When off,
rational numbers are not normalized until printed.
Initially: off. *)
val get_normalize_ratio_when_printing : unit -> bool
(** See {!Arith_status.set_normalize_ratio_when_printing}.*)
val set_normalize_ratio_when_printing : bool -> unit
(** Get or set the flag [normalize_ratio_when_printing].
When on, rational numbers are normalized before being printed.
When off, rational numbers are printed as is, without normalization.
Initially: on. *)
val get_approx_printing : unit -> bool
(** See {!Arith_status.set_approx_printing}.*)
val set_approx_printing : bool -> unit
(** Get or set the flag [approx_printing].
When on, rational numbers are printed as a decimal approximation.
When off, rational numbers are printed as a fraction.
Initially: off. *)
val get_floating_precision : unit -> int
(** See {!Arith_status.set_floating_precision}.*)
val set_floating_precision : int -> unit
(** Get or set the parameter [floating_precision].
This parameter is the number of digits displayed when
[approx_printing] is on.
Initially: 12. *)