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From: jmk@plan9.bell-labs.com
To: 9fans@cse.psu.edu
Subject: Re: [9fans] how to avoid a memset() optimization
Date: Thu, 14 Nov 2002 13:55:06 -0500	[thread overview]
Message-ID: <f0b689280c41328e5f1fc2a69d199658@plan9.bell-labs.com> (raw)

On Thu Nov 14 13:32:18 EST 2002, tad@entrisphere.com wrote:
>
> someone mentioned something along the lines of
>
> void*
> secmemset(void *buf, int v, int len)
> {
> 	return memset((volatile void*)buf, v, len);
> }
>
> However, isn't GCC going to complain that you're passing
> a volatile to a function that isn't expecting a volatile?
>
> -Tad

Jarring chord. The door flies open and Cardinal Ximinez of Spain enters
flanked by two junior cardinals. Cardinal Biggles has goggles pushed over
his forehead. Cardinal Fang is just Cardinal Fang.

Ximinez:
	Nobody expects the Volatile Inquisition. Our chief weapon is surprise
	that your code doesn't work ... surprise and fear that you forgot an
	optimisation parameter... fear and surprise ... our two weapons are fear
	and surprise ... and ruthless efficiency instead of correctness. Our
	THREE weapons are fear, surprise and ruthless efficiency and an almost
	fanatical devotion to RMS ... Our FOUR ... no ... AMONGST our weaponry
	are such elements as fear, surprise ... I'll come in again.
	(exit and exeunt)


             reply	other threads:[~2002-11-14 18:55 UTC|newest]

Thread overview: 91+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-11-14 18:55 jmk [this message]
2002-11-14 22:23 ` Steve Kilbane
  -- strict thread matches above, loose matches on Subject: below --
2003-01-06 10:47 nigel
2003-01-06 11:15 ` Geoff Collyer
2002-11-19 14:32 presotto
2002-11-20  7:24 ` Tomas
2002-11-20 16:38   ` Douglas A. Gwyn
2002-11-19  8:21 Fco.J.Ballesteros
2002-11-18 21:36 Joel Salomon
2002-11-18 20:42 Andrew Simmons
2002-11-18 14:19 C H Forsyth
2002-11-15  1:56 Dennis Ritchie
2002-11-15 10:51 ` Douglas A. Gwyn
2002-11-15 12:03 ` Boyd Roberts
2002-11-14 18:17 presotto
2002-11-14 18:11 Joel Salomon
2002-11-14 18:26 ` William Josephson
2002-11-14 17:44 rog
2002-11-15 10:50 ` Douglas A. Gwyn
2002-11-14 17:28 Russ Cox
2002-11-14 16:47 presotto
2002-11-15 10:50 ` Douglas A. Gwyn
2002-11-15 16:51   ` William Josephson
2002-11-18 10:38     ` Douglas A. Gwyn
2002-11-18 12:34       ` Ronald G. Minnich
2002-11-19  7:38 ` Roman V. Shaposhnick
2002-11-20  9:47   ` Douglas A. Gwyn
2002-11-21 20:55     ` Roman V. Shaposhnick
2002-11-22  9:59       ` Douglas A. Gwyn
2003-01-06 10:18   ` Ralph Corderoy
2003-01-06 15:42     ` Sam
2003-01-06 15:49       ` Russ Cox
2003-01-06 15:58         ` David Presotto
2003-01-06 16:02         ` Sam
     [not found] <nemo@plan9.escet.urjc.es>
2002-11-14 15:38 ` Fco.J.Ballesteros
2002-11-14 16:24   ` Scott Schwartz
2002-11-14  6:53 Russ Cox
2002-11-14 10:22 ` Douglas A. Gwyn
2002-11-14 13:20   ` Sam
2002-11-14 15:20     ` Scott Schwartz
2002-11-14 15:26       ` Boyd Roberts
2002-11-14 15:34         ` plan9
2002-11-14 15:59           ` Sam
2002-11-14 18:57         ` Steve Kilbane
2002-11-15 10:51           ` Douglas A. Gwyn
2002-11-14 15:50       ` Dan Cross
2002-11-14 17:21         ` Douglas A. Gwyn
2002-11-14 18:51           ` Dan Cross
2002-11-14 15:50     ` Douglas A. Gwyn
2002-11-19  7:20 ` Roman V. Shaposhnick
2002-11-14  2:48 Dennis Ritchie
2002-11-14  4:23 ` Ronald G. Minnich
2002-11-13 18:58 Rob `Commander' Pike
2002-11-13 14:40 C H Forsyth
2002-11-13 15:54 ` rob pike
2002-11-13 16:05   ` andrey mirtchovski
2002-11-13 16:32   ` Ronald G. Minnich
2002-11-14 10:21     ` Douglas A. Gwyn
2002-11-14 17:07       ` Ronald G. Minnich
2002-11-22  9:59     ` Clint Olsen
2002-11-13 16:56   ` William K. Josephson
2002-11-14 10:21     ` Douglas A. Gwyn
2002-11-14 16:48       ` William Josephson
2002-11-14 10:21   ` Douglas A. Gwyn
2002-11-14 14:46     ` Dan Cross
2002-11-14 16:59       ` Douglas A. Gwyn
2002-11-14 18:31         ` Tad Hunt
2002-11-15 10:50           ` Douglas A. Gwyn
2002-11-18 14:27         ` Aharon Robbins
2002-11-13 14:14 Skip Tavakkolian
2002-11-13 13:55 rog
2002-11-13 13:38 Skip Tavakkolian
2002-11-13 16:25 ` Boyd Roberts
2002-11-13 10:43 C H Forsyth
2002-11-14 10:21 ` Douglas A. Gwyn
2002-11-13  6:52 Geoff Collyer
2002-11-13 10:13 ` Boyd Roberts
2002-11-13  6:34 Andrew Simmons
2002-11-13  6:43 ` Doc Shipley
2002-11-13  1:47 Russ Cox
2002-11-13 10:16 ` Douglas A. Gwyn
2002-11-14  1:46 ` Roman V. Shaposhnick
2002-11-14  1:52   ` William Josephson
2002-11-14  6:42     ` Roman V. Shaposhnick
2002-11-13  0:31 Russ Cox
2002-11-13  1:26 ` Roman V. Shaposhnick
2002-11-13 10:15   ` Douglas A. Gwyn
2002-11-14  1:42     ` Roman V. Shaposhnick
2002-11-13 10:15 ` Douglas A. Gwyn
2002-11-13  0:20 presotto
2002-11-12 22:42 Roman V. Shaposhnick

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