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