linux-kernel - Re: sed _s_gnu_alternatives_ (Re: [rft] (g)awk substitution)

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Message-ID: <Pine.LNX.4.63.0701270113400.4567@gockel.physik3.uni-rostock.de>
Date:	Sat, 27 Jan 2007 01:18:30 +0100 (CET)
From:	Tim Schmielau <tim@...sik3.uni-rostock.de>
To:	Oleg Verych <olecom@...wer.upol.cz>
cc:	Rob Landley <rob@...dley.net>, Andrew Morton <akpm@...l.org>,
	Sam Ravnborg <sam@...nborg.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: sed _s_gnu_alternatives_ (Re: [rft] (g)awk substitution)

On Fri, 26 Jan 2007, Oleg Verych wrote:

> In Debian's version it has no `bc', while native `bc' is producing
> crap like that:
> ,-*- bash -*-
> |olecom@...wer:~$ printf "%u" $(( -1 )) ; echo
> |18446744073709551615
> |olecom@...wer:~$ echo -1 | bc
> |-1
> |olecom@...wer:~$ printf "%u" $(( 0xFF )) ; echo
> |255
> |olecom@...wer:~$ echo FF | bc
> |99
> |olecom@...wer:~$ echo F | bc
> |15
> |olecom@...wer:~$
> `-*-
> 
> i can't understand the result... I think linux/scripts/makelst may be
> updated to have sh's version of address calculation ;)

No, IMHO that should not be a reason to change anything in the kernel.
Just set ibase=16 or read the fine manual:
  info '(bc)About Expressions and Special Variables'

Tim
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