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| From | "Rustad, Mark D" <mark.d.rustad@intel.com> |
| Newsgroups | linux.kernel |
| Subject | Re: [GIT] Networking |
| Date | Tue, 08 Sep 2015 19:00:03 +0200 |
| Message-ID | <q6upt-1Fu-23@gated-at.bofh.it> (permalink) |
| References | <q4vpF-2GW-25@gated-at.bofh.it> <q4FS3-M8-27@gated-at.bofh.it> <q4GO6-28h-25@gated-at.bofh.it> <q4HqO-37a-19@gated-at.bofh.it> <q4HAu-3ib-27@gated-at.bofh.it> <q4JVE-6Lq-3@gated-at.bofh.it> <q4Vaq-60u-21@gated-at.bofh.it> <q537Z-rj-25@gated-at.bofh.it> <q62tc-3L3-7@gated-at.bofh.it> |
| X-Original-To | David Laight <David.Laight@ACULAB.COM> |
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| Thread-Topic | [GIT] Networking |
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| X-Original-Cc | Marcel Holtmann <marcel@holtmann.org>, Linus Torvalds <torvalds@linux-foundation.org>, "David S. Miller" <davem@davemloft.net>, Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>, "Berg, Johannes" <johannes.berg@intel.com>, Andrew Morton <akpm@linux-foundation.org>, Network Development <netdev@vger.kernel.org>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org> |
| X-Original-Date | Tue, 8 Sep 2015 16:51:01 +0000 |
| X-Original-Message-ID | <599B264F-0076-4C80-9EF9-853D32D09E3F@intel.com> |
| X-Original-References | <20150902.223522.1792493140210966693.davem@davemloft.net> <CA+55aFx=xh4+vCNOgwXyfeV-t=6anXimqBxH_i71RjYy+Gy9-w@mail.gmail.com> <20150903.104032.767889134756094076.davem@davemloft.net> <CA+55aFxtD2VYW2R0JwjFkZkvzQzcN7qK3m6ReR+BBXtfyDHx7g@mail.gmail.com> <CA+55aFzZe2buU-LxAktxYNojuvMbUNt64QiKDpGsfFwtrbf+Qg@mail.gmail.com> <62408D76-2E53-4914-97A9-32B65B167F9B@holtmann.org> <063D6719AE5E284EB5DD2968C1650D6D1CB8D542@AcuExch.aculab.com> <8BC0F5D8-5872-4387-BACA-BE7EAF479928@intel.com> <063D6719AE5E284EB5DD2968C1650D6D1CB8E788@AcuExch.aculab.com> |
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> On Sep 7, 2015, at 4:02 AM, David Laight <David.Laight@ACULAB.COM> wrote:
>
> Feed:
> int bar(int (*f)[10]) { return sizeof *f; }
> into cc -O2 -S and look at the generated code - returns 40 not 4.
Yes, indeed it does. And with clang too. I guess I was too easily discouraged when looking for a workable syntax some years ago. At the time I stopped when the typedef worked, which really just encapsulates this. I should have recognized that then. Thanks for making it all so clear.
--
Mark Rustad, Networking Division, Intel Corporation
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RE: [GIT] Networking David Laight <David.Laight@ACULAB.COM> - 2015-09-07 13:10 +0200 Re: [GIT] Networking "Rustad, Mark D" <mark.d.rustad@intel.com> - 2015-09-08 19:00 +0200
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