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From: Simon Wright <simon@pushface.org>
Subject: Re: Ada.Numerics.Big_Numbers.Big_Integer has a limit of 300 digits?
Date: Wed, 22 Dec 2021 20:34:20 +0000	[thread overview]
Message-ID: <ly5yrgwf8z.fsf@pushface.org> (raw)
In-Reply-To: 0bf093e6-c25b-4541-a5c0-5b840a2e4e06n@googlegroups.com

AdaMagica <christ-usch.grein@t-online.de> writes:

> There is a limit
> Bignum_Limit : constant := 200;
> in System.Generic_Bignums body, function Normalize, lines 1100ff.

This is the maximum length of a Digit_Vector, where

   subtype SD is Interfaces.Unsigned_32;
   --  Single length digit

   type Digit_Vector is array (Length range <>) of SD;
   --  Represent digits of a number (most significant digit first)

I think this should give a maximum value of ~10**2000.

I printed out sum'image'length; the last value before the exception was
1937.

  parent reply	other threads:[~2021-12-22 20:34 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-22  5:57 Ada.Numerics.Big_Numbers.Big_Integer has a limit of 300 digits? Michael Ferguson
2021-12-22  8:25 ` Mark Lorenzen
2021-12-22 11:14 ` AdaMagica
2021-12-22 11:32   ` AdaMagica
2021-12-22 16:04   ` AdaMagica
2021-12-22 17:37     ` Niklas Holsti
2021-12-22 20:34   ` Simon Wright [this message]
2021-12-22 17:01 ` Luke A. Guest
2021-12-22 17:27   ` Michael Ferguson
2021-12-22 17:43     ` Ben Bacarisse
2021-12-22 17:48     ` Niklas Holsti
2021-12-22 18:02       ` Michael Ferguson
2021-12-22 19:05         ` Niklas Holsti
2021-12-23  8:31           ` Luke A. Guest
2021-12-23  8:54             ` Dmitry A. Kazakov
2021-12-23 11:41           ` AdaMagica
2021-12-23 12:18             ` Niklas Holsti
2021-12-23 14:01               ` Ben Bacarisse
2021-12-22 19:26     ` Mark Lorenzen
2021-12-22 20:43       ` Niklas Holsti
2021-12-22 20:31     ` Paul Rubin
2021-12-22 20:39     ` Paul Rubin
2021-12-23 15:48 ` Jeffrey R.Carter
2021-12-24  9:09   ` AdaMagica
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