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Groups > comp.os.linux.advocacy > #384946

Re: Loop(100)

Cross-posted to 2 groups.

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Jeff-Relf.Me <@.> writes:

>Incubus wrote:
>>   for (int i = 0; i < 100; ++i)
>>     [...]
>> What is the advantage of using '++i' instead of 'i++' ?

>I see no need to optimize integer increments.

A good compiler will optimize better than you can, anyway.

>My loops look like this:

...

>Given:

>  #define  Loop( N )  int LLL = ( N ), J = -1 ; while ( ++J < LLL )

A tiny example of the type of bizarre coding styles I've had to deal
with that makes code difficult to maintain.

This is quite minor and if I had to maintain code where this was the
only strange coding example in it, I'd actually be relieved/happy.
Add in a bunch of other oddball stuff and it becomes hard to follow.

But for grins, I'll ask you, why not a "for (J=0; J < LLL; J++)"
based construct which was designed for such loops?

And what was the advantage of "J = -1; while ( ++J ..." where the
intent was to go through the loop with J == 0 the first time. I
see no reason other than to confuse the next guy.  Maybe job
security for you?  A good compiler will optimize the assign to -1
away to a clear, on hardware where a clear/set to 0 is a bit faster
than setting to a nonzero constant.  That's irrelevant unless the
loop itself was in a larger loop and the code was being squeezed
for every microsecond.

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Thread

Technical challenge for DFS Incubus <incubus9536612@gmail.com> - 2016-12-16 07:18 -0800
  Re: Technical challenge for DFS DFS <nospam@dfs.com> - 2016-12-16 11:32 -0500
    Re: Technical challenge for DFS DFS <nospam@dfs.com> - 2016-12-16 11:37 -0500
    Re: Technical challenge for DFS Incubus <incubus9536612@gmail.com> - 2016-12-16 08:50 -0800
    Re: Technical challenge for DFS Steve Carroll <fretwizzer@gmail.com> - 2016-12-16 09:32 -0800
  Loop(100) Jeff-Relf.Me <@.> - 2016-12-17 12:34 -0800
    Re: Loop(100) DFS <nospam@dfs.com> - 2016-12-18 00:44 -0500
      Command Line jockies use plenty of aliases, no ? ! Jeff-Relf.Me <@.> - 2016-12-17 21:59 -0800
    Re: Loop(100) moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-12-19 17:20 +0000
      I don't worry about "optimizations", don't need to. Jeff-Relf.Me <@.> - 2016-12-19 10:56 -0800
        Re: I don't worry about "optimizations", don't need to. Steve Carroll <fretwizzer@gmail.com> - 2016-12-19 11:23 -0800
        Re: I don't worry about "optimizations", don't need to. moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-12-20 12:30 +0000
          Other people's code is hard to learn/modify. Jeff-Relf.Me <@.> - 2016-12-20 06:06 -0800
            Re: Other people's code is hard to learn/modify. Peter Köhlmann <peter-koehlmann@t-online.de> - 2016-12-20 15:31 +0100
              Re: Other people's code is hard to learn/modify. chrisv <chrisv@nospam.invalid> - 2016-12-20 09:04 -0600
            Re: Other people's code is hard to learn/modify. moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-12-20 15:06 +0000
              What The Fuck is wrong with your peers ? ! Jeff-Relf.Me <@.> - 2016-12-20 09:59 -0800
                Re: What The Fuck is wrong with your peers ? ! moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-12-20 23:22 +0000
                I won, bigly. Jeff-Relf.Me <@.> - 2016-12-20 16:15 -0800
                Re: I won, bigly. DFS <nospam@dfs.com> - 2016-12-21 00:01 -0500
                AutoFormatting hides the fingerprints. Jeff-Relf.Me <@.> - 2016-12-21 02:55 -0800
                Re: AutoFormatting hides the fingerprints. Peter Köhlmann <peter-koehlmann@t-online.de> - 2016-12-21 14:33 +0100
                Re: AutoFormatting hides the fingerprints. moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-12-22 03:21 +0000
                My code is dense, and hard to read, like the Washington Post. Jeff-Relf.Me <@.> - 2016-12-22 02:36 -0800
                Re: My code is dense, and hard to read, like the Washington Post. moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-12-22 21:22 +0000
                Re: My code is dense, and hard to read, like the Washington Post. chrisv <chrisv@nospam.invalid> - 2016-12-23 07:54 -0600
                Re: My code is dense, and hard to read, like the Washington Post. flatfish+++ <flatfish@linuxmail.org> - 2016-12-23 09:35 -0500
                Re: My code is dense, and hard to read, like the Washington Post. Marek Novotny <marek.novotny@marspolar.com> - 2016-12-23 08:46 -0600
                Re: My code is dense, and hard to read, like the Washington Post. moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-12-23 16:21 +0000
                My code is dense, and hard to read, like the Washington Post. Jeff-Relf.Me <@.> - 2016-12-23 08:52 -0800
                Re: My code is dense, and hard to read, like the Washington Post. moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-12-23 19:12 +0000
                Re: My code is dense, and hard to read, like the Washington Post. chrisv <chrisv@nospam.invalid> - 2016-12-23 13:27 -0600
                Re: My code is dense, and hard to read, like the Washington Post. Peter Köhlmann <peter-koehlmann@t-online.de> - 2016-12-23 20:56 +0100
                Re: My code is dense, and hard to read, like the Washington Post. Snit <usenet@gallopinginsanity.com> - 2016-12-23 13:32 -0700
                Re: My code is dense, and hard to read, like the Washington Post. Peter Köhlmann <peter-koehlmann@t-online.de> - 2016-12-23 22:40 +0100
                Re: My code is dense, and hard to read, like the Washington Post. Snit <usenet@gallopinginsanity.com> - 2016-12-23 15:19 -0700
                Re: My code is dense, and hard to read, like the Washington Post. Steve Carroll <fretwizzer@gmail.com> - 2016-12-23 14:30 -0800
                My C++ Coding Standards ( apologies to Bjarne Stroustrup ). Jeff-Relf.Me <@.> - 2016-12-23 17:06 -0800
                Re: My C++ Coding Standards ( apologies to Bjarne Stroustrup ). Peter Köhlmann <peter-koehlmann@t-online.de> - 2016-12-24 10:40 +0100
                Re: My code is dense, and hard to read, like the Washington Post. jmfbahciv <See.above@aol.com> - 2016-12-24 14:04 +0000
                Someday, if you're lucky, you'll know the freedoms I enjoy. Jeff-Relf.Me <@.> - 2016-12-23 08:05 -0800
                Re: My code is dense, and hard to read, like the Washington Post. GreyCloud <mist@cumulus.com> - 2016-12-23 13:49 -0700
                Re: I won, bigly. Silver Slimer <.m@nsn.s> - 2016-12-21 09:09 -0500
                Re: I won, bigly. benj <benj@nobody.net> - 2016-12-21 17:37 -0500
                Re: What The Fuck is wrong with your peers ? ! chrisv <chrisv@nospam.invalid> - 2016-12-21 07:14 -0600

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