From: Herbert Xu <herbert@gondor.apana.org.au>
To: "Vladimir N. Oleynik" <dzo@simtreas.ru>
Cc: dash@vger.kernel.org
Subject: Re: [PATCH]: allow recursive variable inderection in arith
Date: Fri, 5 Apr 2024 16:37:59 +0800 [thread overview]
Message-ID: <Zg+4Z9R7bT1nYoGf@gondor.apana.org.au> (raw)
In-Reply-To: <ecf90382-e5b9-9b0c-c73b-c564a660ee20@simtreas.ru>
On Sun, Jan 31, 2021 at 01:29:36PM +0400, Vladimir N. Oleynik wrote:
>
> My patch for allow recursive variable inderection in arith
> and simplify allow $(( )). Originaly from my arith in busybox
>
> Before patch:
> $ a=b b=2; echo $((a))
> dash: 1: Illegal number: b
>
> After patch:
> $ a=b b=2; echo $((a))
> 2
> a=b b="a*2"; echo $((a))
> ./dash: 4: arithmetic expression: expression recursion loop detected: "a"
Again this does not belong in dash because one of the principal
goals is to be minimal.
Thanks,
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
next prev parent reply other threads:[~2024-04-05 8:37 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-29 19:49 [PATCH]: allow $(()) Vladimir N. Oleynik
2021-01-31 9:29 ` [PATCH]: allow recursive variable inderection in arith Vladimir N. Oleynik
2024-04-05 8:37 ` Herbert Xu [this message]
2024-04-05 8:36 ` [PATCH]: allow $(()) Herbert Xu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=Zg+4Z9R7bT1nYoGf@gondor.apana.org.au \
--to=herbert@gondor.apana.org.au \
--cc=dash@vger.kernel.org \
--cc=dzo@simtreas.ru \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.