Wednesday, February 25, 2015

Digest for comp.lang.c++@googlegroups.com - 25 updates in 11 topics

woodbrian77@gmail.com: Feb 25 10:25AM -0800

I have a problem on PC-BSD 10.1/Clang 3.4.
 
There's a comment in this thread
 
http://stackoverflow.com/questions/10291923/getaddrinfo-failing-with-error-servname-not-supported-for-ai-socktype-in-c
 
about getline not removing a newline character.
 
I'm using fgets and strtok:
 
port=::strtok(nullptr,"\n ");
 
When I pass port to gettaddrinfo I get the error.
The same code works fine on Fedora/GCC 4.9, so I'm thinking
it has something to do with fgets or strtok in Clang.
Thanks in advance for ideas on how to resolve this.
 
And I've been working on improving the software here:
 
http://webEbenezer.net/build_integration.html
 
I'm happy with the way things have been going and invite
you to take a look by downloading the archive on that
page to your FreeBSD, Linux or Windows machine.
 
 
Brian
Ebenezer Enterprises - So far G-d has helped us.
http://webEbenezer.net
Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk>: Feb 25 07:22PM


> about getline not removing a newline character.
 
> I'm using fgets and strtok:
 
> port=::strtok(nullptr,"\n ");
 
Why are you asking about fgets and strtok in this newsgroup Brian? This
is a C++ newsgroup not a C newsgroup or, given your use of nullptr, some
horrid bastardization of the two language styles. Write C code when
using a C compiler and write C++ code (i.e. use std::string and such)
when using a C++ compiler.
 
/Flibble
Ramine <ramine@1.1>: Feb 25 02:13PM -0800

On 2/25/2015 11:06 AM, Richard Heathfield wrote:> On 25/02/15 21:56,
Ramine wrote:
> instead of wasting everybody else's time by posting endless reams of
> gibberish to this forum.
 
> Get a sense of perspective. This is a newsgroup, not a blog.
 
You don't understand Richard Heatfields, i am just posting 1, 2 or 3
posts in average each day in comp.programming this newsgroup.. that's
not too much.. so don't be harsh and rude like islamists of ISIS in Irak...
 
 
I have just posted a song, but i am posting one song every month ,
that's not much either... so please don't get too harsh...
 
 
 
Thank you,
Amine Moulay Ramdane.
Ramine <ramine@1.1>: Feb 25 02:20PM -0800

On 2/25/2015 2:13 PM, Ramine wrote:
 
> > Get a sense of perspective. This is a newsgroup, not a blog.
 
> You don't understand Richard Heatfields, i am just posting 1, 2 or 3
> posts in average each day in comp.programming this newsgroup.. that's
 
 
I was speaking about comp.programming, and don't think that's the same
in this newsgroup, because i am not interrested in C or C++, so
be sure that i will not post in this newsgroups of C or C++ from now on,
that's the way it is my friends...
 
Ramine <ramine@1.1>: Feb 25 01:57PM -0800

Hello,
 
I am an arab but i am "french", because i always talk and think french
in my daily life...
 
So i want to share with you this french song of compagnie creole, listen
to it , it's so beautiful...
 
https://www.youtube.com/watch?v=FNw0X8jy-IA
 
 
Thank you,
Amine Moulay Ramdane.
Ramine <ramine@1.1>: Feb 25 01:40PM -0800

Hello guys...
 
 
Don't worry guys, i will post just few posts in this newsgroup...
so don't be so harsh, and about comp.programming, i was not the person
who have caused people to flee from comp.programming, the newsgroups
of comp.programming and comp.programming.thread was dying in fact before
i have posted in them, so i have decided to post some content there
about parallel programming and such, i didn't want to harm this
comp.programming or comp.programming.threads newsgroups, but since they
were dying , i just wanted to post some content about parallel
programming and such to not let them die...
 
 
That's all guys...
 
 
Thank you for your time...
 
 
Amine Moulay Ramdane.
JiiPee <no@notvalid.com>: Feb 25 12:07AM

On 24/02/2015 16:46, Jens Thoms Toerring wrote:
> insane amounts of messages, bringing the S/N down to nearly
> zero. Another of his victims is comp.programming.threads.
 
> Best regards, Jens
 
Moderated group might be good, but really dont like moderators who kill
posts just because they do not like the person or they do not like what
he says. They should only really delete spam posts and not posts they
dont like. I mean killing the freedom....
 
Obviously people who post random stuff and do not reply and
communicate... those surely are ones to be deleted. But there are many
who do communicate and many do not like them, but imo they should still
be allowed to post. Freedom of speech is based just on that: we dont
like what they say but we let them express themselves.
David Brown <david.brown@hesbynett.no>: Feb 25 10:05AM +0100

On 25/02/15 01:07, JiiPee wrote:
> who do communicate and many do not like them, but imo they should still
> be allowed to post. Freedom of speech is based just on that: we dont
> like what they say but we let them express themselves.
 
The principle of freedom of speech is important, but it always has its
limits. This guy is so prolific in his nonsense post that many have
found him extremely annoying in several other groups - and I've never
seen anyone successfully having a discussion with him. With luck, he
will move on from c.l.c++ (and c.l.c) soon enough. If not, we ask him
politely to limit his posting and to use Usenet groups for discussion,
not as a an outlet for all thoughts that pass through his head. If that
fails, we ask eternal-september to cut his cord.
JiiPee <no@notvalid.com>: Feb 25 05:06PM

On 25/02/2015 09:05, David Brown wrote:
> limits. This guy is so prolific in his nonsense post that many have
> found him extremely annoying in several other groups - and I've never
> seen anyone successfully having a discussion with him.
 
so he is not replying and communicating? yes, thats why I mentioned that
they should communicate (politely).
I agree that somebody just "preaching" and not replying /communicating
(on a long hold) could possible be banned. But not after 1-2 messages.
If its a long term thing, then. But you are saying here is one those....
maybe....Looks like he is not replying to people.
 
> politely to limit his posting and to use Usenet groups for discussion,
> not as a an outlet for all thoughts that pass through his head. If that
> fails, we ask eternal-september to cut his cord.
 
yes, if this is true then you are right.... then he would be one
potential person who should be banned :)
 
But I mean even if somebody is a bit rude, I would not ban them as long
as they do not constantly swear or use bad language. If rules are not to
use bad language (rasism etc) then obviously its ok to ban those who do
do that. But somebody asnwering to me "I think you are horribly wrong
You do not seem to understand anything about this!! I think you should
not even post here" or similar.... even though it does not feel good, in
the name of free speech I would let him continue as long as he is not
breaking rules. Moderator should not ban this kind of thing.
JiiPee <no@notvalid.com>: Feb 25 05:08PM

On 25/02/2015 09:05, David Brown wrote:
>> like what they say but we let them express themselves.
> The principle of freedom of speech is important, but it always has its
> limits.
 
its not even about limits.... here its "breaking the rules" I would say.
Because the forum might have a rule "this is about discussion, not
sharing information only". So he would be breaking that rule in this case.
jt@toerring.de (Jens Thoms Toerring): Feb 25 06:13PM

> (on a long hold) could possible be banned. But not after 1-2 messages.
> If its a long term thing, then. But you are saying here is one those....
> maybe....Looks like he is not replying to people.
 
Have you ever taken a short look at comp.programming or
comp.programming.threads? Then you can see immediately that this
is not a 1-2 messages thing. He's like someone in a restaurant
where you want a nice meal and an enjoyable conversation, who
is shouting at the top of his voice what a fine picker of his
nose he is and that he wants us all to gather around him to
admire his last harvest and that he just retrieved a further
bit of the marvelous specimen of snot he's so proud of to
have produced and that we all should taste how good it is,
and so on without a break. Other guests politely asking him
to tone it down a bit are completely ignored. Of course, new
customers coming in turn around on their heels and leave for
different places.
 
Then, if you go to a different restaunt the next time and this
guy wanders in with his finger in his nose you probably also
wouldn't greet him with great friendliness but ask for him to
be expelled before he ruins another evening.
 
Regards, Jens
--
\ Jens Thoms Toerring ___ jt@toerring.de
\__________________________ http://toerring.de
Ramine <ramine@1.1>: Feb 25 01:07PM -0800

Hello...
 
 
I have come to an interesting subject..
 
I was asking myself right now what is exactly is the big and important
improvement that brings Object oriented programming like C++ or Object
Pascal or Java or C# ?
 
I have thought rapidly at this and i think the BIG improvement that
brings object oriented programming is that it tries to "minimize" at
best "complexity" so that it can improve the criterion of
"maintainability" etc.. but how can we look at object programming ?
i think that by analogy it look like divide-and-conquer methods and
algorithms, i mean that object oriented programming is like an
"optimization" that minimizes at best the "complexity",
divide-and-conquer methods and algorithms also try to minimize at best
the number of steps or instructions that an algorithm have to do and we can
measure that as a time complexity expressing it by a O().
 
 
 
 
Thank you,
Amine Moulay Ramdane.
Bo Persson <bop@gmb.dk>: Feb 25 11:50AM +0100

On 2015-02-24 23:36, Christopher Pisz wrote:
 
> allowed for their promises. Because it seems, it is OK to lie and
> promise something you can't deliver, get the check, and then make
> excuses. There doesn't seem to be repercussions.
 
A problem is that if you tell the truth up front, you will hardly ever
get any checks.
 
That's worse than being caught with "bad predictions".
 
 
Bo Persson
JiiPee <no@notvalid.com>: Feb 25 02:59PM

On 25/02/2015 10:50, Bo Persson wrote:
> get any checks.
 
> That's worse than being caught with "bad predictions".
 
> Bo Persson
 
are you saying manager are lying to clients?
Martin Shobe <martin.shobe@yahoo.com>: Feb 25 09:47AM -0600

On 2/25/2015 7:08 AM, Stefan Ram wrote:
>> code.
 
> When people do /not/ learn how to write production code in tutorials,
> where /do/ they learn to write production code?
 
When they start writing code that is intended for actual use.
 
> Why shouldn't there be a tutorial »How To Write Production Code«?
 
If someone could overcome some major obstacles, there's no reason why
there shouldn't. Examples of obstacles include,
 
1) A good deal of production code is written by teams. Each team will
have it's own set of restrictions, preferences, and expectations that
will impact how code is written. In other words, there isn't a single
way to write production code.
 
2) Production code is usually a good deal larger than code that can be
easily fit into a tutorial.
 
Martin Shobe
woodbrian77@gmail.com: Feb 25 08:01AM -0800

Leigh,
 
Please don't swear or use sexual slurs here.
 
Brian
Ebenezer Enterprises - In G-d we trust.
http://webEbenezer.net
woodbrian77@gmail.com: Feb 25 08:28AM -0800

On Wednesday, February 25, 2015 at 4:51:03 AM UTC-6, Bo Persson wrote:
> > excuses. There doesn't seem to be repercussions.
 
> A problem is that if you tell the truth up front, you will hardly ever
> get any checks.
 
Yes, you'll pay a price, but it's pay me now or pay me
1000 times more later.
 
Brian
Ebenezer Enterprises - "All the world is just a narrow bridge,
the most important thing is not to be afraid." Rebbe Nachman
 
http://webEbenezer.net
Bo Persson <bop@gmb.dk>: Feb 25 06:11PM +0100

On 2015-02-25 15:59, JiiPee wrote:
 
>> That's worse than being caught with "bad predictions".
 
>> Bo Persson
 
> are you saying manager are lying to clients?
 
Well, an optimistic estimate has a better chance of winning a bid. If
you are allowed to add more cost later, it's tempting to be VERY optimistic.
 
I have seen that when some internal projects were actually killed rather
than allocated more money when needed, the estimates for the following
projects were significantly higher.
 
Is that lying, or adapting to the rules?
 
 
 
Bo Persson
JiiPee <no@notvalid.com>: Feb 25 05:16PM

On 25/02/2015 17:11, Bo Persson wrote:
 
> Is that lying, or adapting to the rules?
 
> Bo Persson
 
I would not lie. I do projects to clients at times and I keep it real.
Also other aspects of programming, I basically always tell the truth
(like: "this is gonna take you very long time to get working...so not
sure if its possible")
Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk>: Feb 25 05:38PM


> Brian
> Ebenezer Enterprises - In G-d we trust.
> http://webEbenezer.net
 
You cannot handle rough language Brian? Tough titties mate.
 
Sausages.
 
/Flibble
ram@zedat.fu-berlin.de (Stefan Ram): Feb 25 01:08PM

>into unneeded details. For tutorials, also "using namespace std;" is a
>good idea. Production code will be different in many ways from tutorial
>code.
 
When people do /not/ learn how to write production code in tutorials,
where /do/ they learn to write production code?
 
Why shouldn't there be a tutorial »How To Write Production Code«?
ram@zedat.fu-berlin.de (Stefan Ram): Feb 25 01:28PM

>Why shouldn't there be a tutorial »How To Write Production Code«?
 
And what should be the contents of such a tutorial
(insofar as it differs from conventional tutorials)?
sasq64@gmail.com: Feb 25 02:30AM -0800

My personal collection of code modules has grown into a pretty usable library, and I thought others could maybe find it useful. Also I could do with more feedback and even some help with parts I haven't done yet.
 
I put it up on http://apone.org
 
Main focus is portable game-like development (OpenGL ES etc) using C++11 idioms and design inspired by the simplicity of some javascript APIs.
 
There are some short code samples on the site so you can see if you like the API design...
"Osmium" <r124c4u102@comcast.net>: Feb 22 06:51AM -0600

"Wouter van Ooijen" wrote:
 
 
> If you expect me to follow a link to your wonderfull creations I'd first
> like a line or two that explains what it will do for me. (That also gives
> me a hint of how good you are at expressing yourself efficiently.)
 
Perhaps someone could compute and post the fog index for Ramine's post -
that would provide some insight as to just *how* wonderful he is..
Marcel Mueller <news.5.maazl@spamgourmet.org>: Feb 22 09:59AM +0100

On 21.02.15 22.41, Paavo Helde wrote:
> random fashion. Even if they are not failing, the computer is pretty much
> unusable anyway. Depending on the OS and running programs, a computer
> restart might be the best option to come out of the trashing mode. I am
 
You are right. I can confirm this. Win7 discards the disk cache on
suspend to disk. This is comparable to swapping after resume. About 1GB
of data is read with heavy disk activity in the first few minutes after
resume - probably in 4k blocks due to page faults. In this time the
system is almost unresponsive and random faults occur from time to time.
E.g. drivers that do no longer recognize there devices or program
windows can no longer rearrange their Z order (This can happen to any
window including simple explorer windows.). Of course, nothing bad
happens as long as you have only a few application windows open at
suspend and the cache is quite small. So the concept is well designed to
survive a feature presentation, no more no less. (What the hell came
over them when they decided to discard the cache.)
 
I once run into a similar problem on a Linux VM server too. I started
one VM too much and the memory got very low. It was impossible to get a
shell to suspend one of the VMs in a reasonable amount of time. So I
decided to prefer a hard reset.
 
 
> starting to think that turning the pagefile off completely might be the
> best approach.
 
Unfortunately you have to be careful here. Depending on the OS this
might have unwanted side effects. Some OS refuse overcommitment of
memory when there is absolutely no swap. Maybe some reliable operating
mode intended for cash terminals or something like that. This will
likely throw out of memory exceptions very soon when using ordinary
desktop applications.
Other OS simply ignore your configuration and create a temporary swap
file on the system volume in this case.
 
 
> That's why throw specifications is a deprecated antifeature.
 
Is it?
 
> functions with an empty throw clause should not call anything non-
> trivial, if they do there is a large problem between the keyboard and
> chair.
 
Well that's the old discussion whether to have checked exceptions or
not. Unfortunately when using generic functors or lambdas you have
almost no choice. You cannot reasonably use checked exceptions with
them, as it would require the throws declaration to be a type argument.
(Is this allowed at all?)
 
 
> the allocation. Alternatively, if the program itself is the memory hog,
> then it can probably release a lot of it by stack unwinding (in the
> correct stack!), then report a failure.
 
I think it always depend on the individual case. And the basic question
is simply who pays to cover all this cases. Probably no-one.
 
 
> Dynamic memory allocation can be handled relatively well in C++.
 
In the language: yes. In C++ libraries, well, it depends.
 
> overflow is a different beast altogether, there are no standard
> mechanisms for dealing with that and most program(mer)s just ignore the
> problem and hope they get lucky.
 
Indeed.
 
 
Marcel
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