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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Allocators design flaw
Date: Sat, 14 Oct 2017 16:25:07 +0200
Date: 2017-10-14T16:25:07+02:00	[thread overview]
Message-ID: <ort6o4$1iul$1@gioia.aioe.org> (raw)
In-Reply-To: ort4qb$1g2h$1@gioia.aioe.org

On 2017-10-14 15:52, Victor Porton wrote:

>> Add max alignment + log max alignment - 1 to the desired size. Add log
>> max alignment to the returned address and round to the required
>> alignment. Place the offset to original address in front (log alignment
>> length). Return the rounded address. When freed use the stored offset to
>> get the original address.
> 
> Is "log" logarithm? Why do we need a logarithm?

This is how you calculate the number of storage elements needed to store 
an integer number logN (M), where N is the unit, e.g. 2.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de

  reply	other threads:[~2017-10-14 14:25 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-14  2:53 Allocators design flaw Victor Porton
2017-10-14  7:27 ` Dmitry A. Kazakov
2017-10-14 13:52   ` Victor Porton
2017-10-14 14:25     ` Dmitry A. Kazakov [this message]
2017-10-14 14:03   ` Victor Porton
2017-10-14 14:26     ` Dmitry A. Kazakov
2017-10-14 15:18       ` Victor Porton
2017-10-14 15:44         ` Dmitry A. Kazakov
2017-10-14 16:42           ` Victor Porton
2017-10-14 16:13     ` Simon Wright
2017-10-14 16:38       ` Victor Porton
2017-10-14 14:12   ` Victor Porton
2017-10-14 14:20     ` Victor Porton
2017-10-14 14:24       ` Victor Porton
2017-10-14 14:36         ` Dmitry A. Kazakov
2017-10-14 15:17           ` Victor Porton
2017-10-14 15:51             ` Dmitry A. Kazakov
2017-10-14 16:34               ` Victor Porton
2017-10-14 17:14                 ` Dmitry A. Kazakov
2017-10-14 17:24                   ` Victor Porton
2017-10-14 18:08                     ` Dmitry A. Kazakov
2017-10-14 14:28     ` Dmitry A. Kazakov
2017-10-14 15:14       ` Victor Porton
2017-10-14 15:42         ` Simon Wright
2017-10-14 16:29           ` Victor Porton
2017-10-14 20:07             ` Simon Wright
2017-10-14 21:26               ` Victor Porton
2017-10-21  1:42     ` Randy Brukardt
2017-10-14  8:02 ` Simon Wright
2017-10-14 13:59   ` Victor Porton
2017-10-14 14:35     ` Simon Wright
2017-10-14 15:11       ` Victor Porton
2017-10-14 15:56         ` Simon Wright
2017-10-14 16:22           ` Victor Porton
2017-10-29 16:01           ` David Thompson
2017-10-14 14:11 ` Victor Porton
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