From: Alan Modra <amodra@bigpond.net.au>
To: Andreas Schwab <schwab@redhat.com>
Cc: Tristan Gingold <gingold@adacore.com>,
Nick Clifton <nickc@redhat.com>,
Binutils <binutils@sourceware.org>
Subject: Re: [Patch] opcodes/z8k-opc.h regenerated
Date: Mon, 07 Sep 2009 13:20:00 -0000 [thread overview]
Message-ID: <20090907132041.GG518@bubble.grove.modra.org> (raw)
In-Reply-To: <m3my56gb0p.fsf@hase.home>
On Mon, Sep 07, 2009 at 03:05:58PM +0200, Andreas Schwab wrote:
> Not sure whether you can count on p1 != p2.
Does it matter? Seems to me if qsort calls the comparison function
with p1 == p2, then it doesn't matter whether qsort "swaps" those
entries or not. It would be a rather poor qsort implementation that
did this and then didn't terminate..
> A common idiom is (p1 > p2) - (p1 < p2).
Feel free to fix it if you think this is necessary, or even just
desirable as the Right Thing To Do.
--
Alan Modra
Australia Development Lab, IBM
next prev parent reply other threads:[~2009-09-07 13:20 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-04 13:00 Tristan Gingold
2009-09-04 15:33 ` Nick Clifton
2009-09-07 8:30 ` Tristan Gingold
2009-09-07 11:18 ` Alan Modra
2009-09-07 11:37 ` Alan Modra
2009-09-07 11:47 ` Tristan Gingold
2009-09-07 12:12 ` Alan Modra
2009-09-07 12:17 ` Andreas Schwab
2009-09-07 12:29 ` Tristan Gingold
2009-09-07 13:08 ` Andreas Schwab
2009-09-07 13:20 ` Alan Modra [this message]
2009-09-07 14:40 ` Andreas Schwab
2009-09-07 21:58 ` Alan Modra
2009-09-07 22:32 ` Andreas Schwab
2009-09-07 23:43 ` Alan Modra
2009-09-08 9:01 ` Andreas Schwab
2009-09-08 9:35 ` Alan Modra
2009-09-07 13:01 ` Alan Modra
2009-09-07 11:38 ` Tristan Gingold
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