From: "Dave Korn" <dave.korn.cygwin@googlemail.com>
To: cygwin@cygwin.com
Subject: Re: Inconsistency with sort -n?
Date: Fri, 02 Jan 2009 23:07:00 -0000 [thread overview]
Message-ID: <2ca21dcc0901021506g1ab459b3ya8df823ac9e4a7f2@mail.gmail.com> (raw)
In-Reply-To: <0105D5C1E0353146B1B222348B0411A211B41DEC@NIHMLBX02.nih.gov>
Buchbinder, Barry (NIH/NIAID) [E] wrote:
> `sort -n' and `sort -g' work inconsistently with 0 and -0 if there are
> leading spaces. Sometimes -0 is before 0, as I would expect, and sometimes
> it is afterwards. Adding `-b' does not seem to help.
>
> Is this where I should report it or should I go upstream?
Kinda depends where it's coming from. Could be newlib, could be cygwin,
could be sort itself. Either the + and - zeros aren't being correctly
converted to their float representations, or the comparison of + vs. - zero
isn't working right, at a first guess.
> In case you are wondering why I want to do this: I'm counting items in a
> bin so the bin from -1 to 0 and 0 to +1 are different.
Hacky work-around: " | sort -r | sort [-n|-g] -s". First alphabetic sort
using -r gets all the negative numbers at the start of the list, then adding
stable flag to the numeric sort preserves their relative ordering when they
compare equal.
> Happy Gregorian New Year!
Happy Pastafarian Noodly YARRRR!
cheers,
DaveK
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next prev parent reply other threads:[~2009-01-02 23:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-31 21:39 Buchbinder, Barry (NIH/NIAID) [E]
2009-01-02 23:07 ` Dave Korn [this message]
2009-01-07 14:27 ` Eric Blake
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