[CLUE-Tech] Curious about GCC -O3
Matt Gushee
mgushee at havenrock.com
Thu Apr 25 13:56:14 MDT 2002
On Thu, Apr 25, 2002 at 11:01:32AM -0600, Ed Hill wrote:
>
> According to the manual, -O3 is equal to "-O2 -finline-functions".
> I've used -O3 on occasion and had no problems. I've also seen *no*
> significant improvement in execution speed for -O3 versus -O2.
Oh. Well, I'm not a C programmer and have never really had the need
or desire to learn all the intricacies of GCC. I just approached it
from the admittedly simplistic point of view that "optimization is
good, therefore more optimization must be better." Thanks for enlightening
me.
--
Matt Gushee
Englewood, Colorado, USA
mgushee at havenrock.com
http://www.havenrock.com/
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Date: Thu, 25 Apr 2002 13:32:42 -0600
From: "Dameron, Gregg" <gregg.dameron at lmco.com>
To: "'clue-tech at clue.denver.co.us'" <clue-tech at clue.denver.co.us>
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Subject: [CLUE-Tech] Do these two items exist?
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I am a longtime Solaris user looking to bring some *nix knowledge home to my
MS-ME box.
1. My first eyes-on look at Linux was a colleague who was running RedHat
7.x on his laptop. He opened a terminal window and entered "lintowin" or
"lin2win" (don't remember which). A large window appeared and inside it was
a Win95 desktop, running natively (or so it appeared), allowing him to bring
up MS Office docs. The window closed when he picked "Start -> Log Off".
Does anyone know this command and its pedigree? (Or is it more likely to
have been an alias to WINE or VMWare)?
2. I have been unable to find any evidence that there is a Linux version of
the Desktop Korn Shell (dtksh). Is there one?
Please include me in your reply, as I am not (yet) on the mailing list.
Thank you --
Gregg Dameron
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Date: Wed, 24 Apr 2002 08:17:03 -0600 (MDT)
To: clue-tech at clue.denver.co.us
Subject: Re: [CLUE-Tech] vi command
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If you're using vim, you can also use the Visual Mode to make mass
case changes:
v, V, ctrl-v to enter the visual mode and highlight specified text.
Then U to change all selected text to uppercase.
This is kind of an odd way to do things, but it's really handy if you need
to affect changes on a collumn of words in the middle of other text such
as variables in a case statement.
C
On Tue, 23 Apr 2002, Match Grun wrote:
> If you are in command mode, then move cursor to the
> y of yes. Then issue the following keystrokes:
>
> ~ww~
>
> hehehe...
>
> Match
>
> On Mon, 22 Apr 2002 23:19:23 -0600
> Kevin Cullis <kevincu at orci.com> wrote:
>
> > Jason,
> >
> > The vi Editor books states this:
> >
> > Changing "yes, doctor" to "Yes, Doctor"
> >
> > :%s/yes, doctor /\uyes, \udoctor/
> >
> > See page 82 in the book
> >
> > Kevin
> >
> > Jason Friedman wrote:
> > >
> > > I know that one can change the case of a letter in vi with the ~ key.
> > >
> > > How does one change the case of a word?
> > > _______________________________________________
> > > CLUE-Tech mailing list
> > > CLUE-Tech at clue.denver.co.us
> > > http://clue.denver.co.us/mailman/listinfo/clue-tech
> >
> > --
> >
> > "Success is never final, failure is never fatal" - Kevin Cullis
> > ---
> > Kevin Cullis
> > kcullis at coloradoexcellence.org
> > 303-893-CPEX (2739) Main
> > 720-489-9283 Direct
> > Colorado Performance Excellence, Inc
> > http://www.coloradoexcellence.org
> > _______________________________________________
> > CLUE-Tech mailing list
> > CLUE-Tech at clue.denver.co.us
> > http://clue.denver.co.us/mailman/listinfo/clue-tech
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