Re: bug in simplify

Ilya Zakharevich on Mon, 28 Aug 2023 07:48:52 +0200

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Re: bug in simplify_shallow

To: "Ruud H.G. van Tol" <rvtol@isolution.nl>, pari-dev@pari.math.u-bordeaux.fr
Subject: Re: bug in simplify_shallow
From: Ilya Zakharevich <nospam-abuse@ilyaz.org>
Date: Sun, 27 Aug 2023 22:44:10 -0700
Delivery-date: Mon, 28 Aug 2023 07:48:52 +0200
In-reply-to: <ZOwzBEpZs7MP85Ug@math.berkeley.edu>
References: <1e144fa5-864d-450e-a109-1fac8300bf88@isolution.nl> <CANXmBjzx4t330CnCzz4TzMfPFVVYg+-T7iskqECzh_+_2G2ABw@mail.gmail.com> <ZOoCXdx+VmSoRmML@math.u-bordeaux.fr> <ZOtHFLdXr0FuLCzY@seventeen> <70235df6-488a-412a-b2c6-7c49d5898b99@isolution.nl> <ZOtaInkQQYBBw9C7@math.u-bordeaux.fr> <ZOwzBEpZs7MP85Ug@math.berkeley.edu>

On Sun, Aug 27, 2023 at 10:39:16PM -0700, Ilya Zakharevich wrote:
> IIRC, in Perl the lexical are not removed, but instead
>          are MARKED for removal.
> 
> In the beginning of each “statement”, what was marked for removal
> before this is actually removed.

Oups, this “before” is wrong:

  What is marked for removal IN THE SAME OR DEEPER SCOPES is actually
  removed.  (Of course, one also needs extra “postponed” removals on
  exit.)

Sorry,
Ilya

References:
- bug in simplify_shallow
  - From: "Ruud H.G. van Tol" <rvtol@isolution.nl>
- Re: bug in simplify_shallow
  - From: Charles Greathouse <crgreathouse@gmail.com>
- Re: bug in simplify_shallow
  - From: Karim Belabas <Karim.Belabas@u-bordeaux.fr>
- Re: bug in simplify_shallow
  - From: Bill Allombert <Bill.Allombert@math.u-bordeaux.fr>
- Re: bug in simplify_shallow
  - From: "Ruud H.G. van Tol" <rvtol@isolution.nl>
- Re: bug in simplify_shallow
  - From: Karim Belabas <Karim.Belabas@u-bordeaux.fr>
- Re: bug in simplify_shallow
  - From: Ilya Zakharevich <nospam-abuse@ilyaz.org>

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