The Whiteboard

BarryTheHatchet

12:10 AM

@whatsisname lool

@whatsisname how on earth does that have 16 score o.O

c# is barmy

see, this nonsense rep inflation is how Jon Skeet became "Jon Skeet"

BarryTheHatchet

1:02 AM

@Ixrec more C++ shitness

1

Q: Compiler error with vector of deque of unique_ptr

The following code fails to compile on gcc 5.3 with compiler error complaining that the copy constructor of the unique_ptr is somehow invoked. Can someone explain why this happens? #include <iostream> #include <memory> #include <queue> using Foo = std::deque<std::unique_ptr<int>>; ...

Sameer Pradhan

1:32 AM

can i ask django installation question here?

André

I have no experience with django whatsoever

BarryTheHatchet

you can ask

doubt you'll get many answers

BarryTheHatchet

2:35 AM

suppose I ought to sleep

you quiet gits

André

If anything, I met Tomas Petricek today

BarryTheHatchet

that guy keeps writing "StackOverflow"

it's infuriating

Ixrec

Could this be considered a defect in the language? Because this is absurd. — BarryTheHatchet 2 hours ago

my first impression is that having a move constructor that isn't noexcept on any class seems like a really bad idea to me, since as we just discovered that makes it impossible to store the class in a standard container without breaking part of the standard container interface, so personally I would be willing to call that a language defect

is deque the only "STL container" with that property?

oh dear, according to cppreference std::vector also doesn't specify noexcept on its move constructors

I know std::deque is a bit wacky but what kind of std::vector implementation would require allocation during a move? assuming the move is actually implemented as an optimization and not just a dupe of the copy?

@BarryTheHatchet: Last time I poked about, it had something to do with stateful allocators. You can't tell at compile time if two allocators are equal, so you don't know at compile time if you can move or have to copy. — Mooing Duck 2 hours ago

oh right, that

supporting custom allocators ruins so many things

incidentally...it's likely you can blame my employer for a good chunk of the custom allocator support >_>

I'm really looking forward to when the core of our software gets broken up into modern C++ linux services instead of the current 4GB god executable and we can find out if those custom allocators are actually necessary or if they were just a hack to make up for all the other hacks

BarryTheHatchet

2:07 PM

> Hello!
>
> We are looking for employees working remotely.
>
> My name is Lucas, am the personnel manager of a large International company.
> Most of the work you can do from home, that is, at a distance.
> Salary is $1000-$4000.
>
> If you are interested in this offer, please visit our site: --> [redacted]
>
> Best regards!

seems legit

uh oh, another spam email has my real name in it

and it's definitely unsolicited/phishing

dammit

BarryTheHatchet

2:42 PM

0

A: Is there a decent wait function in C++?

Lots of people have suggested POSIX sleep, Windows Sleep, Windows system("pause"), C++ cin.get()… there's even a DOS getch() in there, from roughly the late 1920s. Please don't do any of these. None of these solutions would pass code review in my team. That means, if you submitted this code fo...

Johan Larsson

hello barry

Ixrec

@BarryTheHatchet upvoted your answer and the other answer making a similar point

tbh I was completely unaware that /K was even a thing...will definitely use that or a .bat next time I write a CLI program through an IDE

BarryTheHatchet

:D

@Ixrec it's very handy

@JohanLarsson hello Johan

I need to get off crowdcube. already invested in two things this morning

Ixrec

to be even more honest, I was disappointed the question turned out to be about making the console window not auto-close as opposed to actual wait functions

I'm not aware of a portable/standard wait function in C++ either

BarryTheHatchet

2:59 PM

@Ixrec indeed

@Ixrec if std::this_thread::sleep_for is not good enough for you then all bets are off

Ixrec

ooooh they snuck it into the threading stuff

silly me looking in std::chrono

BarryTheHatchet

heh

std::this_thread::sleep_until too!

and don't forget condition variables

plenty of waiting options there

Ixrec

it'll be a while before I understand condition variables but I'm very aware they exist

BarryTheHatchet

they're a bit weird tbh

basically just a combination of a mutex and an if statement

Ixrec

that's why I never quite grokked them the last five times I read about them

one of those things I just will not understand until I finally have to write a piece of code that needs them

BarryTheHatchet

3:02 PM

plus an encapsulated loop around the whole thing because condvars can spuriously wake so the condition needs rechecking and the mutex may need to be locked again if it's still false

I make good use of them in a couple of places (@Jimmy helped me to get my new event loop off the ground and it's awesome) but I wouldn't say I grok them entirely.

purely because they're weird and I haven't quite figured out whether that's because I am missing something or because they are weird...

DeliriousSyntax

3:31 PM

I hate everyone in android enthusiasts. They deleted both of my questions told me to just go edit the other question which was already well stated, so they could take all the rep and told me to put a bounty on it. Then they kicked me from the chat room because I said "You know a site is inactive when the only bounty is yours"

And they also made it to where I can't answer questions

BarryTheHatchet

heh

Ixrec

to be fair, I have the only bounty on Sci-fi.SE right now, and I don't think that site is "inactive"

DeliriousSyntax

3:59 PM

android enthusiasts is actually pretty inactive though probably have like a 2% answer rate

Thanks for not letting me answer nor ask this question @MathewRead — DeliriousSyntax 51 mins ago

Ixrec

this seems like the sort of thing where a custom mod flag or contacting CMs would be more constructive than comments like that

DeliriousSyntax

4:27 PM

I keep puting all my rep towards bounties on questions that has only MathewRead's answers that are already accepted, but he keeps deleting the bounties

BarryTheHatchet

4:53 PM

@DeliriousSyntax you also misspelt his name, so the notification won't work.

@DeliriousSyntax Why are you doing that?

I do find that the moderator community on smaller SE sites tend to be a little ... shall we say, childish. There's just not the same oversight and professionalism that there is on the larger sites.

Of course, that's a huge generalisation.

Mast

5:13 PM

@BarryTheHatchet If you got anything concrete, you may want to make a case to a community moderator.

BarryTheHatchet

@Mast It's not like I'm collecting a portfolio of documenting evidence for a legal trial. This is just my anecdotal experience.

(And, apparently, that of liri.)

Mast

I'll agree smaller communities have a different culture. But every site has it's own culture. The one of smaller sites are just more instable (even volatile).

DeliriousSyntax

5:34 PM

incepto ne desistam

BarryTheHatchet

@Mast Yep.

Evinda

Hello!!! Is anyone of you familiar with coding theory?

DeliriousSyntax

Coding theory

Coding theory is the study of the properties of codes and their fitness for a specific application. Codes are used for data compression, cryptography, error-correction and more recently also for network coding. Codes are studied by various scientific disciplines—such as information theory, electrical engineering, mathematics, linguistics, and computer science—for the purpose of designing efficient and reliable data transmission methods. This typically involves the removal of redundancy and the correction (or detection) of errors in the transmitted data. There are four types of coding: Data ...

Mast

^^

Perhaps you had a more specific question in mind which we could answer with a more specific answer?

Evinda

I want to find all k in N such that there is a binary cyclic [9,k] code.

Mast

5:45 PM

That's context, I sense a question is coming which may or may not need even more of that awesome stuff.

DeliriousSyntax

seen 37s ago, This means ~~war~~

Ixrec

only one wiki article into trying to make sense of Evinda's question and I've already hit a "This article may be too technical for most readers to understand." banner

either I should stop now...or this is the most interesting thing I've never heard of that I'm going to hear of for several months

DeliriousSyntax

@Ixrec Be careful the article may cause your mmind to explode from the intensity of content

Ixrec

> An (n,k) quasi-cyclic code is a linear block code such that, for some b coprime with n, the polynomial x^bc(x) \pmod {x^n-1} is a codeword polynomial whenever c(x) is a codeword polynomial.

brain pressure rising

DeliriousSyntax

@Ixrec And this is why The Whiteboard will always be the best chat room (The humor)

Ixrec

5:53 PM

there doesn't seem to be a definition of codeword polynomial anywhere

DeliriousSyntax

Is this math or code?

Mast

The math behind the code probably.

Ixrec

"coding theory" is clearly a math thing

Evinda

Yes, it's math... That's why I asked at the beginning ;)

DeliriousSyntax

That would explain why Evinda is interested in this Math is his/her favorite stack exchange site

Ixrec

5:57 PM

it would seem no one currently in this chat has any background in it

DeliriousSyntax

Professor Ixrec teach us :P

Ixrec

I haven't taught myself it yet

Mast

You asked whether we were familiar. We've heard of it. But it's not something many programmers concern themselves with unless they're in a specific field of academia.

DeliriousSyntax

Ok I'll give you 15 minutes to learn every detail of it. That should be enough for you

Ixrec

now tell me which episode that image is from

on the plus side I found a free online textbook on coding theory from some uni website and this looks entirely approachable and interesting

DeliriousSyntax

6:24 PM

2nd episode

Oh that's Dr Who

Isn't it a new doctor every episode or something

BarryTheHatchet

6:43 PM

No.

Ixrec

lol

there are only 12 to 20ish Doctors (depending on what you count), not over 800 Doctors

BarryTheHatchet

20ish?

are you counting Comic Relief?

heretic ;p

Ixrec

couldn't be bothered to look up the exact list of maybe-Doctors

looks like 18 is the most inclusive count that sticks to canon, so if you include Shalka and Comic Relief that'd get you to 20

BarryTheHatchet

Comic Relief had like 6 in a row

Ixrec

I need to rewatch that sketch

DeliriousSyntax

6:54 PM

@BarryTheHatchet is a fan to?

Ixrec

...and I just realized I still have not watched Scream of the Shalka

fail

DeliriousSyntax

So it wasn't second episode I'm guessing

Ixrec

I'm starting to wonder if there's a language barrier involved where the words for "doctor" and "episode" are getting mixed up

DeliriousSyntax

It was me hearing someone elses conversation walking down the hall like 5 years ago

misinterpretation of the information I overheard

user15026

I've not watched DW in a good long while.

DeliriousSyntax

6:59 PM

Let's go with 32nd episode

Ixrec

since there won't be any more DW for a year, now's a good time to catch up

DeliriousSyntax

I haven't watched it since... hmm... Never

Ixrec

32nd episode would be...somewhere in season 1, so no

DeliriousSyntax

It's a new doctor every season not episode?

Ixrec

there's no fixed rule, usually the Doctor changes whenever the current actor feels like leaving, which is typically after a couple of years/seasons

DeliriousSyntax

7:03 PM

What is it about? I flipped to the channel once and it looked really old so I went to another chanel

BarryTheHatchet

@Ixrec :(

@DeliriousSyntax Do some fscking research. Open Wikipedia and spend two minutes reading rather than ... this!

Ixrec

Doctor Who

Doctor Who is a British science-fiction television programme produced by the BBC since 1963. The programme depicts the adventures of the Doctor, a Time Lord—a space and time-travelling humanoid alien. He explores the universe in his TARDIS, a sentient time-travelling space ship. Its exterior appears as a blue British police box, which was a common sight in Britain in 1963 when the series first aired. Accompanied by companions, the Doctor combats a variety of foes, while working to save civilisations and help people in need. The show is a significant part of British popular culture, and elsewhere...

DeliriousSyntax

@BarryTheHatchet I think you made a typo "fscking"

1963 Hmmm seems relatively new

Ixrec

have you never fscked your computer before? you should really take better care of your file system

DeliriousSyntax

Fsck

The system utility fsck (for "file system consistency check") is a tool for checking the consistency of a file system in Unix and Unix-like operating systems, such as Linux and OS X. It is similar to the chkdsk command in Microsoft Windows. == Pronunciation == Like many computer jargon terms without vowels, fsck is essentially unpronounceable in most languages and so people are forced to improvise when speaking it aloud. It can be pronounced "F-S-C-K", "F-S-check", "fizz-check", "F-sack", "fisk", "fizik", "F-sick", "F-sock", "F-uck" (associated with how long it takes to run), "F-sek", the sibilant...

It's actually a wrod

Ixrec

7:05 PM

I would hesitate to call that a "word", but it is the name of a command line utility

DeliriousSyntax

It can be pronounced "F-S-C-K", "F-S-check", "fizz-check", "F-sack", "fisk", "fizik", "F-sick", "F-sock", "F-uck" (associated with how long it takes to run[2]), "F-sek", the sibilant "fsk", "farsk" or "fusk".

Starting ROOT
Connecting to Device, Please Wait

Connecting to Device, Please Wait

Device Now Flashing, Please wait
.......

Please work

Mast

F-sock?

Never heard of that one before.

DeliriousSyntax

You can't ever say that again now

Mast

7:26 PM

...

user15026

7:59 PM

I have no idea what is going on right now

Robert Harvey

8:13 PM

@AshleyNunn Long day at work?

user15026

@RobertHarvey Not too bad today, for the most part. A couple squeaky wheels but nothing I've not been able to handle. :)

user15026

Although I'm ready for my weekend to start (45 more minutes!)

DeliriousSyntax

8:29 PM

Moderator Private Message
from
Matthew Read♦
sent 29 mins ago
to
DeliriousSyntax

Hello,

I'm writing in reference to your Android Enthusiasts Stack Exchange account:

http://android.stackexchange.com/users/133386/delirioussyntax

Please stop abusing the bounty system. If you don't like the way Stack Exchange works, you are free to leave. If you have any constructive criticism, please create a Meta post rather than agitating in chat and creating these bounties.

We have temporarily suspended your account; you may return after 7 days.

:(

incepto ne desistam

Robert Harvey

Causing trouble again, Delirious?

DeliriousSyntax

No he kicked me from chat for saying "You know a site is inactive when the only bounty is yours", so I've been putting all my rep on bounties for his answers for kicking me

Mast

If you really want to cause havoc, the bounty system isn't the most obvious one to start with.

user143252

which site is good for learning about avr atmega and arm cortex m4

Mast

@user143252 The datasheet.

DeliriousSyntax

8:38 PM

Not android enthusiasts that's for sure

4 hours ago, by BarryTheHatchet

I do find that the moderator community on smaller SE sites tend to be a little ... shall we say, childish. There's just not the same oversight and professionalism that there is on the larger sites.

Mast

The one for the ATmega 3-something is 555 pages alone.

Tells you a lot about hardware interrupts, registers and specs.

user143252

i am lookinf for video tutorial or university lecture .. someting that helps me ... excluding datasheets

DeliriousSyntax

Hey @WorldEngineer Been a while since I last seen you in here

user20683

@user143252 programming or cpu design

user20683

@DeliriousSyntax I lurk a fair bit

user20683

8:40 PM

also I'm not allowed access to this at work

user143252

for beginner prograaming and basic architecutre related info

Mast

@user143252 If you want to learn about microcontrollers, you'll have to read datasheets. Otherwise you'll never get anything decent done.

user143252

ok

user20683

@user143252 There is a good book on generalized embedded systems programming

user20683

let me get you the link

DeliriousSyntax

8:45 PM

I'm going to log out real quick and do something and come back

user20683

amazon.com/Embedded-Software-Primer-David-Simon/dp/020161569X/…

user20683

You might think that "1999" is too old to be of use but in this case it's not terribly relevant to the discipline as a general field

user143252

thanks @WorldEngineer

user20683

since a great many chips out there are still Z80s and the like from the early 80s

BarryTheHatchet

@DeliriousSyntax Yes, but also

4 hours ago, by BarryTheHatchet

@DeliriousSyntax Why are you doing that?

You're being deliberately provocative in the aftermath, so I'm not sure what you expected.

user143252

8:54 PM

can i ask atmega question ??

atmega programming question

thanks @WorldEngineer

user20683

@user143252 I've no experience with atmega

user143252

ok

still this is my code

i have problem with pinx and portx

BarryTheHatchet

thanks @WorldEngineer

user20683

@BarryTheHatchet hmm?

BarryTheHatchet

yes?

user20683

8:58 PM

@BarryTheHatchet thanks for?

user20683

@user143252 Stack Overflow has an atmega tag

user20683

stackoverflow.com/questions/tagged/atmega

BarryTheHatchet

5 mins ago, by user143252

thanks @WorldEngineer

14 mins ago, by user143252

thanks @WorldEngineer

just, whatever you're doing, keep it up I guess

user20683

@BarryTheHatchet same as I always do, helping when people aren't trying to burn the site down

BarryTheHatchet

whoosh

DeliriousSyntax

9:06 PM

@BarryTheHatchet Just returning the favor

BarryTheHatchet

9:25 PM

What could possibly go wrong?

DeliriousSyntax

9:48 PM

Nothing? The worst that could happen is I have to create another account, but that's no big deal

I'll still have the same name, picture, and menality

BarryTheHatchet

Ban evasion is not okay.

You should probably stop talking.

DeliriousSyntax

:o

BarryTheHatchet

10:06 PM

I'm serious. There are moderators here from multiple sites, not to mention Stack Exchange employees. And here you are incriminating yourself, loudly planning to commit some of the worst disciplinary violations possible.

Does that seem like a good idea to you?

sled

10:37 PM

mh... I have a stupid naming question, maybe someone can help. I have the following relationship model: User -has_many-> Memberships -has_many-> Tasks, what's a good name for the relation between tasks and memberships? What I want to express is something like Task has an assignee through membership ;)

user15026

10:49 PM

@DeliriousSyntax a) if you evade bans you will be caught b) that will mean more bans c) don't be stupid d) this is a google indexed chat

user15026

goes back to watching Twitch streams and waiting for dinner

BarryTheHatchet

@sled I'm confused. How can a membership "have" tasks?

Do you really mean User <-has_many-> Tasks? Perhaps you're struggling to find a name for a relation with Memberships because membership is the relation..

sled

@BarryTheHatchet I though I would gain some benefits if I map it through the membership, since when you delete a membership the assignees will be nullified

BarryTheHatchet

you're talking implementation details about a project we have no idea about

sled

true, it's like a simple todo list system - you can be employed at multiple companies and at each company you can have some assigned tasks ;)

first, I directly assigned it to the user, so the naming made some sense i.e "a task belongs to a user", then I thought, well what happens if you get "fired" from a company, then your assignments to task should get invalidated, I could do this either at the application layer or directly at the database layer with foreign key constraints.

maybe I should ask this on the DBA stackexchange

BarryTheHatchet

11:08 PM

you would have to be a lot clearer about the model

sled

@BarryTheHatchet Here's a simple schema: i.imgur.com/y7HmLn7.png

aw...

@BarryTheHatchet i.imgur.com/YxIVY8A.png

BarryTheHatchet

11:37 PM

17

Q: Non-hidden directory doesn't show in Explorer, but the program that made it can access it

I'm using IMAPSize to backup my mailboxes. The process just dumps the contents of your mailbox into .eml files on your disk. Anyway, the first mailbox I backed up shows up as I expect. However, the next one doesn't show in Explorer and, if I enter it in the address bar, it tells me that it doesn'...

windows-7 filesystems ntfs dir

huh TIL

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