/g/ - Technology » Thread #51017300

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/dpt/ - Daily Programming Thread

Anonymous Mon 26 Oct 2015 07:21:29 No.51017300 View Reply Report Delete

Quoted By: >>51017347 >>51017425 >>51018286 >>51018533 >>51019106 >>51019472

Old thread: >>51011983

What are you working on /g/?

Anonymous

Anonymous Mon 26 Oct 2015 07:23:00 No.51017307 Report Delete

Quoted By: >>51018353

first for c# master race

also suggest me a good c# e book for follow it to review some of my old information. thanks in advance fellas

Anonymous

Anonymous Mon 26 Oct 2015 07:23:16 No.51017311 Report Delete

Quoted By:

Second for nim and D

Anonymous

Anonymous Mon 26 Oct 2015 07:28:12 No.51017344 Report Delete

Quoted By:

Trying to get Travis CI to compile my code on OSX.

Anonymous

Anonymous Mon 26 Oct 2015 07:28:46 No.51017347 Report Delete

Quoted By:

>>51017300
Fourth for Forth

Anonymous

Anonymous Mon 26 Oct 2015 07:30:55 No.51017360 Report Delete

Quoted By: >>51017500 >>51022274

How do I painlessly learn ada?
Why is the wikibook giving me an in depth explaination of the type system before even teaching me the basic syntax?

Anonymous

Anonymous Mon 26 Oct 2015 07:39:34 No.51017425 Report Delete

Quoted By:

>>51017300
Has anyone learned frobLang yet?

Anonymous

Anonymous Mon 26 Oct 2015 07:42:27 No.51017457 Report Delete

Quoted By: >>51017493 >>51017516 >>51017928 >>51018830

Has anyone used GO here, if so is it worth it?

Anonymous

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Anonymous Mon 26 Oct 2015 07:46:00 No.51017492 Report Delete

Quoted By:

Another example of how stupid fucking licenses ruin contributions from developers to software:
http://lists.llvm.org/pipermail/llvm-dev/2015-October/091536.html

Anonymous

Anonymous Mon 26 Oct 2015 07:46:04 No.51017493 Report Delete

Quoted By: >>51017516

>>51017457
No, /dpt/ only shills Go. They never use it.

Anonymous

Anonymous Mon 26 Oct 2015 07:47:24 No.51017500 Report Delete

Quoted By: >>51017518 >>51017576

>>51017360
Maybe check out this one http://www.adahome.com/Tutorials/Lovelace/s1s1.htm

Coming with a decent amount of experience in other languages, especially Pascal-family ones, I haven't really stuck to a single resource as I've been learning Ada, but this ones seems to focus on getting started rather than just filling in the gaps.

Anonymous

Anonymous Mon 26 Oct 2015 07:48:59 No.51017516 Report Delete

Quoted By:

>>51017457
>>51017493
It's actually the language I've ended up using the most since I learned it.

It has a great standard library but depending on what you're making the type system can be a real piece of shit.

Anonymous

Anonymous Mon 26 Oct 2015 07:49:15 No.51017518 Report Delete

Quoted By:

>>51017500
>implying ada lovelace wasn't a fraud

Anonymous

Anonymous Mon 26 Oct 2015 07:53:15 No.51017561 Report Delete

Quoted By: >>51017945 >>51017968

A young developer approached me after a conf talk and said, “You must feel really bad about the failure of object-oriented programming.” I was confused. I said, “What do you mean that object-orient programming was a failure. Why do you think that?”

He said, “OOP was supposed to fix all of our software engineering problems and it clearly hasn’t. Building software today is just as hard as it was before OOP. came along.”

“Have you ever look at the programs we were building in the early 1980s? At how limited their functionality and UIs were? OOP has been an incredible success. It enabled us to manage complexity as we grew from 100KB applications to today’s 100MB applications.”

Anonymous

Anonymous Mon 26 Oct 2015 07:54:17 No.51017576 Report Delete

Quoted By: >>51017585 >>51017617

>>51017500
That seems to be a tutorial for Ada 95.
Is it still relevant today?
Why is all Ada 2012 learning material paywalled?

Anonymous

Anonymous Mon 26 Oct 2015 07:55:11 No.51017585 Report Delete

Quoted By:

>>51017576
it's a dead language

Anonymous

Anonymous Mon 26 Oct 2015 07:58:43 No.51017617 Report Delete

Quoted By: >>51017629

>>51017576
Doesn't matter. K&R C vs modern C has more noticeable differences.

Anonymous

Anonymous Mon 26 Oct 2015 08:00:36 No.51017629 Report Delete

Quoted By:

>>51017617
Okay, thanks.
I've used Object Pascal before, so this shouldn't be too hard.

Anonymous

Anonymous Mon 26 Oct 2015 08:03:17 No.51017647 Report Delete

Quoted By: >>51017670 >>51017676 >>51017685 >>51017786

>drink a liter of cofee
>get sleepy
My body is fucking with me.

Anonymous

Anonymous Mon 26 Oct 2015 08:05:36 No.51017670 Report Delete

Quoted By:

>>51017647
Should've add more sugar.

Anonymous

Anonymous Mon 26 Oct 2015 08:05:58 No.51017676 Report Delete

Quoted By: >>51017682

>>51017647
>american spelling
>metric
?

Anonymous

Anonymous Mon 26 Oct 2015 08:07:06 No.51017682 Report Delete

Quoted By:

>>51017676
I've learned English on the Internet :^)

Anonymous

Anonymous Mon 26 Oct 2015 08:07:15 No.51017685 Report Delete

Quoted By:

>>51017647
I have the same problem with caffeinated drinks, like I drink a can of energy drink thinking I'm about to go hard and then I just fall asleep within 30 minutes and ruin my sleep schedule for the next couple of weeks

Anonymous

Anonymous Mon 26 Oct 2015 08:19:45 No.51017786 Report Delete

Quoted By: >>51017800

>>51017647
Nah, it's just that some retards exaggerate the effect of every "drug" because they think it's cool. It's the same people who go
"DUDE I WAS SO DRUNK YESTERDAY I DON'T REMEMBER ANYTHING"
"DUDE I AM SO PRODUCTIVE WHEN I TAKE ADDERAL"
"DUDE WEED LMAO"

None of those things actually do that much, except maybe alcohol in excessive amounts which is literal poison. I drink a liter of coffee in a couple hours sometimes and never felt overly energetic after that.

Anonymous

Anonymous Mon 26 Oct 2015 08:21:55 No.51017800 Report Delete

Quoted By: >>51017844 >>51017857

>>51017786
Some dude with dredds offered me weed on a field trip.
I pretty much had to fake the effects because I literally didn't feel anything aside from slight increase in pattern recognition (tufts of grass in the dark would look like faces).
Do I have to smoke through a bong or is weed just a meme?

Anonymous

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Anonymous Mon 26 Oct 2015 08:26:05 No.51017835 Report Delete

Quoted By: >>51017911

So I'm trying to run msg.exe via a C program so I don't have to enter the paramaters every time I want to write a message. Right now I'm using system() but for some reason it doesn't want to execute the command (it executes others just fine). I did the same in batch script and it only works if I run the .bat as an admin.

Is there any way of achieving this in C, maybe a different function I should use?

Anonymous

Anonymous Mon 26 Oct 2015 08:27:15 No.51017844 Report Delete

Quoted By: >>51017862

>>51017800
Mostly it just makes you feel relaxed and cool. In my experience it seems you pretty much need to start with hard drugs if you want something that has an actual effect

Bong makes inhaling easier.

Anonymous

Anonymous Mon 26 Oct 2015 08:28:06 No.51017857 Report Delete

Quoted By:

>>51017800
>aside from slight increase in pattern recognition (tufts of grass in the dark would look like faces).

You're just making this up

Anonymous

Anonymous Mon 26 Oct 2015 08:28:29 No.51017862 Report Delete

Quoted By:

>>51017844
I actually became paranoid when trying to sleep under the effects.
Constant feeling that someone's walking around outside my bungalow.

Anonymous

Anonymous Mon 26 Oct 2015 08:28:44 No.51017864 Report Delete

Quoted By: >>51017935 >>51018008 >>51018108

new to python. Can anyone help me write an exception that would print "file not found" is the file you pass through the function does not exist?

Anonymous

Anonymous Mon 26 Oct 2015 08:34:17 No.51017911 Report Delete

Quoted By: >>51018668

>>51017835

On windows.

https://msdn.microsoft.com/en-us/library/windows/desktop/ms682425%28v=vs.85%29.aspx

For Linux you want to use Fork + Exec or posix functions.

Anonymous

Anonymous Mon 26 Oct 2015 08:36:11 No.51017928 Report Delete

Quoted By: >>51017965 >>51017981 >>51018830

>>51017457
I've used Go for several small and medium sized projects.
It depends.
Go emphasizes more on simplicity and explicitness as design goal while other languages emphasize more on other design goals.
This means that writing it is a bit more annoying than with other languages, but reading old code or code by other people is more enjoyable and easier to do.
A great example for this is error handling.
It's very repetitive, but in return you can jump into any function and directly see the behaviour of that function in regards to errors.
In fact, it's incredibly repetitive. I grep'd dockers code the other day and it has about 50000 lines of

if err != nil {

and 10000 lines of those 50000

if err != nil {
 return

With unchecked exceptions this would not be the case and you would have to know all the components of the function as well, and with checked exceptions you still cannot be sure which of the components doesn't throw an exception.
More code, more explicit.

Same goes for Go's approach to OOP, with composition and explicit type embedding requiring a bit more code than using inheritance in other languages.
In return all behaviour described by a struct is really from that struct or on of its components and you don't have to track down long type hierarchies with loops and overrides and the fragile base class problem affecting the hierarchy and so on.

If you work alone on projects and/or don't look at your code A LOT after you wrote it, use another language. Otherwise, Go can be a decent tool to counter technical debt and work in larger teams and/or projects that have to be maintained for long.

Anonymous

Anonymous Mon 26 Oct 2015 08:36:57 No.51017935 Report Delete

Quoted By: >>51018005

>>51017864
Why not a simple if else?
I thought exceptions was for when multiple things can go wrong and you're not sure what exactly.

Anonymous

Anonymous Mon 26 Oct 2015 08:37:42 No.51017945 Report Delete

Quoted By: >>51018222

>>51017561
Clearly a result of:

"The problem with object-oriented languages is they’ve got all this implicit environment that they carry around with them. You wanted a banana but what you got was a gorilla holding the banana and the entire jungle." - Joe Armstrong

Anonymous

Anonymous Mon 26 Oct 2015 08:39:42 No.51017965 Report Delete

Quoted By:

>>51017928
great write up, thx.

Anonymous

Anonymous Mon 26 Oct 2015 08:40:07 No.51017968 Report Delete

Quoted By: >>51017973

>>51017561
Jesus fuck what a riveting story. If you have time, could you tell it again at some point?

Anonymous

Anonymous Mon 26 Oct 2015 08:40:56 No.51017973 Report Delete

Quoted By:

>>51017968
Sure.

A young developer approached me after a conf talk and said, “You must feel really bad about the failure of object-oriented programming.” I was confused. I said, “What do you mean that object-orient programming was a failure. Why do you think that?”

He said, “OOP was supposed to fix all of our software engineering problems and it clearly hasn’t. Building software today is just as hard as it was before OOP. came along.”

“Have you ever look at the programs we were building in the early 1980s? At how limited their functionality and UIs were? OOP has been an incredible success. It enabled us to manage complexity as we grew from 100KB applications to today’s 100MB applications.”

Anonymous

Anonymous Mon 26 Oct 2015 08:41:48 No.51017981 Report Delete

Quoted By: >>51018120

>>51017928
This is the same as the "boilerplate" you hate in Java

Anonymous

Anonymous Mon 26 Oct 2015 08:44:15 No.51018005 Report Delete

Quoted By:

>>51017935

its for an assignment

Anonymous

Anonymous Mon 26 Oct 2015 08:44:38 No.51018008 Report Delete

Quoted By:

>>51017864
https://docs.python.org/3.5/tutorial/errors.html

Anonymous

Anonymous Mon 26 Oct 2015 08:54:15 No.51018108 Report Delete

Quoted By:

>>51017864

Use a try and except block. fopen throws a IOError when it's a invalid file.

Anonymous

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Anonymous Mon 26 Oct 2015 08:56:23 No.51018118 Report Delete

Quoted By: >>51018195 >>51021579

>local porn organizer
it's a client for streaming internet porn that allows you to tag/rate/bookmark videos for your own use on your local machine
site independent, so instead of having N accounts for each porn site, with its respective stuff, you have a local thing of your own

does it sound like a good idea? I have a week off, I need a break from my main project and I need something to do.

Anonymous

Anonymous Mon 26 Oct 2015 08:56:25 No.51018120 Report Delete

Quoted By: >>51018196

>>51017981
No, it isn't, because Java's goal wasn't to be explicit.
Java is explicit, verbose and YET reading other people's code requires you to know about a lot of implicit information.
Basically, Java has a lot more redundant explicitness than Go, such as requiring everything to be a class, no kind of type inference, ridiculous naming in the standard library, no literals for things like maps or arraylists and a great deal of rather redundant keywords.
At the same time, Java still has stuff like exceptions and inheritance, which results in a lot of implicit information.
There is a difference between being explicit because being less explicit would require you to know a lot more implicit information and being explicit for the sake of being explicit, even if less explicitness wouldn't hurt readability.

Anonymous

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Anonymous Mon 26 Oct 2015 09:01:14 No.51018161 Report Delete

Quoted By: >>51018178

>tfw java fags complaining about compile time in C/C++

It's pretty much the same in Java, m80s.

$ time find -type f -name "*.java" -exec javac {} \; && printf "Compiled %d java files\n" $(find -type f -name "*.java" | wc -l)

real 0m32.068s
user 1m4.672s
sys 0m2.268s
Compiled 47 java files

Anonymous

Anonymous Mon 26 Oct 2015 09:02:16 No.51018178 Report Delete

Quoted By: >>51018185

>>51018161
but when i press run in eclipse it go fast

Anonymous

Anonymous Mon 26 Oct 2015 09:02:57 No.51018185 Report Delete

Quoted By: >>51018287

>>51018178
but when i modify a single source file in a cpp project it go fast

Anonymous

Anonymous Mon 26 Oct 2015 09:03:52 No.51018195 Report Delete

Quoted By: >>51018263

>>51018118

Something like a local version or danbooru / gelbooru sounds like it'd do reasonably well. I'd say you can probably get it to sell. Sorting porn is a pain in the ass after all.

Anonymous

Anonymous Mon 26 Oct 2015 09:04:07 No.51018196 Report Delete

Quoted By: >>51018347

>>51018120
>such as requiring everything to be a class
Not much different from modules / namespaces / whatever
>no kind of type inference
Not that important in an imperative language. Most of the time writing the type _explicitly_ makes the code more readable.
>no literals for things like maps or arraylists and a great deal of rather redundant keywords
Probably a design choice since those constructs aren't "atomic" like arrays are. Not convenient, but it is explicit though

>At the same time, Java still has stuff like exceptions and inheritance, which results in a lot of implicit information.
Don't see a problem with inheritance and exceptions. They are extremely useful tools for when you need them. Unless you use them badly, they won't make your code any less readable.

>There is a difference between being explicit because being less explicit would require you to know a lot more implicit information and being explicit for the sake of being explicit, even if less explicitness wouldn't hurt readability.
Syntactic sugar is there to help the programmer though, it's there exactly because writing something simple a million times gets tedious when some simple shortcut would solve the problem and still be readable for anyone familiar with the language. It's the same reason we use x++ as statements instead of the "explicit" x += 1.

Anonymous

Anonymous Mon 26 Oct 2015 09:06:49 No.51018222 Report Delete

Quoted By: >>51018232

>>51017945
actually you got an abstract banana factory

Anonymous

Anonymous Mon 26 Oct 2015 09:07:41 No.51018232 Report Delete

Quoted By:

>>51018222
>2015
>not wanting an abstract banana factory

Anonymous

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Anonymous Mon 26 Oct 2015 09:10:15 No.51018263 Report Delete

Quoted By: >>51018284 >>51018322

>>51018195
>you can probably get it to sell
how would you go about such a thing, other than your own site and word of mouth? Afaik the only *practical* venues these days where you can get a piece of software out are either platform specific stores, steam or actual retail.

I'm not actually thinking of selling a porn sorting application, I'm asking in general.

Anonymous

Anonymous Mon 26 Oct 2015 09:12:30 No.51018284 Report Delete

Quoted By:

>>51018263
>not calling it a video sorting application and selling it on steam

Anonymous

Anonymous Mon 26 Oct 2015 09:12:32 No.51018286 Report Delete

Quoted By:

>>51017300
a fancy in-browser encrypted messenger
setup SSL last night through comodo last night whoop

setup the new DB for the user system whoop
now to actually code more shit today

Anonymous

Anonymous Mon 26 Oct 2015 09:12:33 No.51018287 Report Delete

Quoted By: >>51018307

>>51018185
Not if it's a well-used header file!

Anonymous

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Anonymous Mon 26 Oct 2015 09:12:48 No.51018288 Report Delete

Quoted By: >>51018434

working on a trie for homework, having problems with destructive modifying a struct in lisp

i'm using setf but the trie isn't modifying permanently

* (setq newt (make-trie))
#<NIL - 0 subwords>

* (add-word "abc" newt)
#<abc - 1 subwords>

* newt
#<NIL - 0 subwords>

Anonymous

Anonymous Mon 26 Oct 2015 09:14:26 No.51018307 Report Delete

Quoted By:

>>51018287
that's why i explicitly said a source file, not a header file

Anonymous

Anonymous Mon 26 Oct 2015 09:15:58 No.51018322 Report Delete

Quoted By: >>51018354

>>51018263
The same way you'd market a website or *E-Business*. Word of mouth, social media, setup a site, and buy ad-space. Generate interest in the product anyway you can.

Optimize the website for search engines. Get in on a ppc service. Target your adds towards people surfing porn.

It's a royal bitch to start from scratch if you actually want to start a commercial product and business.

Anonymous

Anonymous Mon 26 Oct 2015 09:17:53 No.51018347 Report Delete

Quoted By: >>51018363 >>51018404 >>51018511

>>51018196
>Not much different from modules / namespaces / whatever
Java requires every class to be in its own file AND has packages. This is more explicitness than necessary.

>Most of the time writing the type _explicitly_ makes the code more readable.
As Joe Armstrong said:
Foo foo = new Foo(Foo.FOO_INIT);
if we have to Foo that often, isn't something wrong?
In fact, atleast the following redundancy is necessary:
Foo f = new Foo();
and the following redundancy is common in the Java world:
Foo foo = new Foo();
I agree that if you have Foo foo = bar(); the explicitness is useful in regards to readability.
For instantiation however, it's redundant.

>Not convenient, but it is explicit though
I wonder if you ever had to construct a larger static mapping in Java. It's always ugly and a lot more redundantly explicit than map[string]float64{"foo": 1.0, etc}.

>Unless you use them badly, they won't make your code any less readable.
I won't comment on this because this is an experience a lot of people have made in larger projects over the last 20 years.
I explained explicitly enough why these carry around a huge implicit environment.
The fragile base class problem makes large class hierarchies a hell to maintain.

>when some simple shortcut would solve the problem and still be readable for anyone familiar with the language
I never claimed that this wasn't good. An issue arises when this shortcut makes code behave significantly differently in different contexts and carries implicit information about the context that you cannot read in the code right in front of you

Anonymous

Anonymous Mon 26 Oct 2015 09:18:56 No.51018353 Report Delete

Quoted By: >>51018418

>>51017307
Check out " fundimentals of computer programming with c# " it's pretty detailed. 1000+ pages and I haven't finished half of it. Fuck.

Anonymous

Anonymous Mon 26 Oct 2015 09:19:00 No.51018354 Report Delete

Quoted By:

>>51018322
fuck that
I'll just put it up on github because porn is a human right
giving back to society, you know

Anonymous

Anonymous Mon 26 Oct 2015 09:20:18 No.51018363 Report Delete

Quoted By: >>51018376 >>51018650

>>51018347
auto foo = new Foo();

Anonymous

Anonymous Mon 26 Oct 2015 09:21:58 No.51018376 Report Delete

Quoted By: >>51018482 >>51018527

>>51018363
C++ is a different kind of beast than the one I am arguing about.

Anonymous

Anonymous Mon 26 Oct 2015 09:23:41 No.51018404 Report Delete

Quoted By: >>51018432

>>51018347
>The fragile base class problem makes large class hierarchies a hell to maintain.

OOP would be so much better without inheritance.

Anonymous

Anonymous Mon 26 Oct 2015 09:24:46 No.51018418 Report Delete

Quoted By:

>>51018353
thank you mate, some fellas from last thread said C# in depth with jon skeet and already download it. i wrote your advice down just in case i dont like the book.

Anonymous

Anonymous Mon 26 Oct 2015 09:26:14 No.51018432 Report Delete

Quoted By:

>>51018404
In my opinion OOP is so much better for encapsulating state (and ONLY that) without inheritance and duck-typed interfaces as in Go.

Anonymous

Anonymous Mon 26 Oct 2015 09:26:34 No.51018434 Report Delete

Quoted By:

>>51018288
i'm a dolt nvm

Anonymous

Anonymous Mon 26 Oct 2015 09:31:25 No.51018482 Report Delete

Quoted By: >>51018527

>>51018376
#define inst(a) a a_ ## a = a()
#define inst(a,b) a a_ ## a = a(b)
inst(Foo);
inst(DifferentFoo, DifferentFoo45);

-> Foo a_Foo = Foo();
-> DifferentFoo a_DifferentFoo = DifferentFoo(DifferentFoo45);

Anonymous

Anonymous Mon 26 Oct 2015 09:34:49 No.51018511 Report Delete

Quoted By: >>51018630

>>51018347
>Java requires every class to be in its own file AND has packages. This is more explicitness than necessary.
But don't act like it's a lot of trouble. There's 2 levels of grouping, I'm ok with that. You could elect not to use packages if you don't like them.

>Foo foo = new Foo();
Not redundant because people read the type first either way. Having the type lets them know instantly what's going on. Mostly inference is really useful for complex utilitary types like iterators and shit IMO

>I wonder if you ever had to construct a larger static mapping in Java. It's always ugly and a lot more redundantly explicit than map[string]float64{"foo": 1.0, etc}.
Yeah it's clumsy as fuck but it comes from Java's wish to be a higher-level C++. At least it makes using different variations of maps easy, but a convenience syntax for instantation would be a good idea.

>I won't comment on this because this is an experience a lot of people have made in larger projects over the last 20 years.
>I explained explicitly enough why these carry around a huge implicit environment.
>The fragile base class problem makes large class hierarchies a hell to maintain.
Java actually does have the best tool ever to work around base class problems - the interface system. It's pretty dope for composition, but it doesn't get used enough because people tend to flock to inheritance even when it's not a good idea.

It's the same as C++ multiple-inheritance - sometimes it's a good fucking tool and makes everything simpler and easier, but don't overuse it.

>I never claimed that this wasn't good. An issue arises when this shortcut makes code behave significantly differently in different contexts and carries implicit information about the context that you cannot read in the code right in front of you
Kind of an abstract issue, but you gotta admit that often times not having to deal with everything explicitly is good, right? Abstracting the mundane details away?

What a long fucking writeup

Anonymous

Anonymous Mon 26 Oct 2015 09:36:40 No.51018527 Report Delete

Quoted By:

>>51018376
>>51018482

#define inst(a,b) a b = a
#define inst(a) a _ ## a = a

const inst(int,foo)(3U);
-> const int foo = int(3U);

const inst(int)(3U);
-> const int _int = int(3U);

Anonymous

Anonymous Mon 26 Oct 2015 09:36:49 No.51018528 Report Delete

Quoted By: >>51018553 >>51018559 >>51018578 >>51018587

Java should have operator overloading

tbh

Anonymous

Anonymous Mon 26 Oct 2015 09:37:24 No.51018533 Report Delete

Quoted By: >>51018575 >>51018602

>>51017300
A ``frob'' based filesystem.

Anonymous

Anonymous Mon 26 Oct 2015 09:39:51 No.51018553 Report Delete

Quoted By: >>51018605

>>51018528
Every programming language should have operator overloading, and more kinds of syntax overloading

Anonymous

Anonymous Mon 26 Oct 2015 09:40:15 No.51018559 Report Delete

Quoted By:

>>51018528
This fam.

Anonymous

Anonymous Mon 26 Oct 2015 09:41:16 No.51018574 Report Delete

Quoted By: >>51018591

A young developer approached me after a conf talk and said, "You must feel really bad about the failure of object-oriented programming." I was confused. I said, "What do you mean that object-orient programming was a failure. Why do you think that?"

He said, “OOP was supposed to fix all of our software engineering problems and it clearly hasn’t. Building software today is just as hard as it was before OOP. came along.”

"Yes but in the meantime my qualifications have skyrocketed and I've sold thousands of books and made tons of money on speaking tours. OO has made me very successful."

Anonymous

Anonymous Mon 26 Oct 2015 09:41:24 No.51018575 Report Delete

Quoted By:

>>51018533
Is this the MOTYAY?

Anonymous

Anonymous Mon 26 Oct 2015 09:41:36 No.51018578 Report Delete

Quoted By: >>51018607 >>51018653 >>51019214

>>51018528
java doesn't let you do that because it allows for bad coding practices.

with many objects it isn't clear what an operator would do, and would lead to unexpected behavior from your class.

Anonymous

Anonymous Mon 26 Oct 2015 09:42:21 No.51018587 Report Delete

Quoted By: >>51018621

>>51018528
operator overloading is for chumps and faggots, just saying

Anonymous

Anonymous Mon 26 Oct 2015 09:42:48 No.51018589 Report Delete

Quoted By: >>51018597 >>51018604 >>51018640 >>51018652 >>51019351

Name one complex program written in a purely functional language.
Pro tip: you can't.

Anonymous

Anonymous Mon 26 Oct 2015 09:42:55 No.51018591 Report Delete

Quoted By:

>>51018574
nice bullshit you got there, fam

Anonymous

Anonymous Mon 26 Oct 2015 09:43:34 No.51018597 Report Delete

Quoted By: >>51018631

>>51018589
http://www.youtube.com/watch?v=0jYdu2u8gAU

Anonymous

Anonymous Mon 26 Oct 2015 09:43:55 No.51018602 Report Delete

Quoted By:

>>51018533
Does it support arbitrary delimitation?

Anonymous

Anonymous Mon 26 Oct 2015 09:44:04 No.51018604 Report Delete

Quoted By:

>>51018589
https://github.com/jgm/pandoc

Anonymous

Anonymous Mon 26 Oct 2015 09:44:08 No.51018605 Report Delete

Quoted By: >>51018648

>>51018553
Is it a sign of autism to hate operator overloading, with passion?

Anonymous

Anonymous Mon 26 Oct 2015 09:44:15 No.51018607 Report Delete

Quoted By:

>>51018578
>because it allows for bad coding practices
FactoryFactoryFactoryFactoryFactoryFactory
neat coding standards you hold java up to

Anonymous

Anonymous Mon 26 Oct 2015 09:45:18 No.51018621 Report Delete

Quoted By: >>51018628

>>51018587
https://www.youtube.com/watch?v=_ahvzDzKdB0

Anonymous

Anonymous Mon 26 Oct 2015 09:45:56 No.51018628 Report Delete

Quoted By: >>51018973

>>51018621
>implying I can watch youtube videos at work

Anonymous

Anonymous Mon 26 Oct 2015 09:46:06 No.51018630 Report Delete

Quoted By: >>51018703

>>51018511
>There's 2 levels of grouping, I'm ok with that.
I am not because in almost every Java project I have worked on this sort of redundancy accumulates.

>Having the type lets them know instantly what's going on.
And var f = new Foo() doesn't give them the type instantly?

>Java actually does have the best tool ever to work around base class problems - the interface system.
To completly work around the fragile base class problem in Java (not just for now, but for the entire life time of the project) you only use composition and build interface hierarchies.
This is exactly what you do in a language that only supports composition AND you don't have a lot of retards that learned about "DOG INHERITS ANIMAL" in college and want to push everything into a class hierarchy.
There have been articles about this since the beginning of the millennium but it doesn't gain much traction in languages that support inheritance because of the endless stream of college graduates that learned that inheritance is great but never all the dangers and that it actually fucks up in most cases.

>but you gotta admit that often times not having to deal with everything explicitly is good, right?
I admitted that numerous times now.
Redundant explicitness is bad.
Exceptions abstract important details, such as which function throws an exception and which doesn't, away.

Anonymous

Anonymous Mon 26 Oct 2015 09:46:12 No.51018631 Report Delete

Quoted By: >>51019376

>>51018597
>A game that looks like Quake 2 running at 5 FPS on modern hardware
Is that... the power of functional programming!?
...Wow

Anonymous

Anonymous Mon 26 Oct 2015 09:47:01 No.51018640 Report Delete

Quoted By:

>>51018589
Because complicated problems are simple when you use functional programming!

Anonymous

Anonymous Mon 26 Oct 2015 09:47:43 No.51018648 Report Delete

Quoted By:

>>51018605
No, just cancer.

Anonymous

Anonymous Mon 26 Oct 2015 09:48:06 No.51018650 Report Delete

Quoted By: >>51018705

>>51018363
>disgusting.jpg
lol do not use sepples as if it were jabba pls.

Anonymous

Anonymous Mon 26 Oct 2015 09:48:07 No.51018652 Report Delete

Quoted By:

>>51018589
https://github.com/metabase/metabase

Anonymous

Anonymous Mon 26 Oct 2015 09:48:11 No.51018653 Report Delete

Quoted By: >>51018744 >>51018766 >>51019281

>>51018578
>with many objects it isn't clear what an operator would do, and would lead to unexpected behavior from your class.
I have never understood this argument.
Exactly what 'unexpected behavior' does
c = a + b
have that:
c = a.add(b)
doesn't?
Anything the + operator could do the 'add' method could do (and vise versa) - i.e if you wanna argue 'hurr someone could make + do subtraction!!! Then so could the one writing the 'add' method - it's literally just syntactic sugar, it does not add any semantic burden.

Anonymous

Anonymous Mon 26 Oct 2015 09:48:57 No.51018660 Report Delete

Quoted By:

I sure love functions like vec2add()

>muh complexity and unexpected behavior
Literally one (1) click to jump to the function definition.

Anonymous

Anonymous Mon 26 Oct 2015 09:49:24 No.51018668 Report Delete

Quoted By:

>>51017911
tnx

Anonymous

Anonymous Mon 26 Oct 2015 09:53:06 No.51018703 Report Delete

Quoted By:

>>51018630
>And var f = new Foo() doesn't give them the type instantly?
No it doesn't, it has the slight pointless mental overhead of "ah, an automatically typed variable f -> ah, it's of type Foo because there's the new and Foo parts" as opposed to "ah, a Foo named f"

>To completly work around the fragile base class problem in Java (not just for now, but for the entire life time of the project) you only use composition and build interface hierarchies.
Which you can do in Java fine and dandy if you know what you're doing. Some simple inheritance relations in non-public classes is a non-problem and you can refactor if it turns out to be a bad solution somehow.
>This is exactly what you do in a language that only supports composition AND you don't have a lot of retards that learned about "DOG INHERITS ANIMAL" in college and want to push everything into a class hierarchy.
That's a big problem with SE in general, but in no way specific to only java

Point is, you're being overly harsh on Java. I don't see Go overtaking its place anytime soon.

Anonymous

Anonymous Mon 26 Oct 2015 09:53:12 No.51018705 Report Delete

Quoted By: >>51018738

>>51018650
C++ is great because you can almost turn other languages into valid C++ with extreme macro/templating

Anonymous

View Same Google ImgOps iqdb SauceNAO PHOTOESSAY_SPR14_Rushin3.jpg, 133KiB, 1200x800

Anonymous Mon 26 Oct 2015 09:54:23 No.51018714 Report Delete

Quoted By: >>51018724

>people arguing about languages
can't we all agree c and/or c++ are the best things out there?
it's fucking simple

Anonymous

Anonymous Mon 26 Oct 2015 09:54:56 No.51018721 Report Delete

Quoted By: >>51018794

in python what the diff between def foo(*args) and foo(*args)

basically how does *args get treated differently in function calls and defining the function?

Anonymous

Anonymous Mon 26 Oct 2015 09:54:57 No.51018722 Report Delete

Quoted By:

why is haskell wiki down

Anonymous

Anonymous Mon 26 Oct 2015 09:55:12 No.51018724 Report Delete

Quoted By: >>51018743

>>51018714
Obvious troll, Java is the best language, especially the JavaScript update

Anonymous

View Same Google ImgOps iqdb SauceNAO Using+4chan+s+mfw+and+arrow+misu (...).jpg, 6KiB, 194x199

Anonymous Mon 26 Oct 2015 09:56:20 No.51018738 Report Delete

Quoted By: >>51018761

>>51018705
lolwut

Anonymous

Anonymous Mon 26 Oct 2015 09:56:48 No.51018743 Report Delete

Quoted By: >>51018758

>>51018724
dae remember when we had java but without script? xD
those were the times, man

Anonymous

Anonymous Mon 26 Oct 2015 09:56:51 No.51018744 Report Delete

Quoted By:

>>51018653
Presumably people who aren't overloading operators will choose a more helpful name for the function.

Anonymous

Anonymous Mon 26 Oct 2015 09:57:52 No.51018758 Report Delete

Quoted By:

>>51018743
laughed out lout

Anonymous

Anonymous Mon 26 Oct 2015 09:58:00 No.51018761 Report Delete

Quoted By: >>51018846

>>51018738
I can't find it but there was an example where, using templating and user defined literals, someone made valid C++ that was very close to valid HTML.

Here's assembly:
http://blog.mattbierner.com/stupid-template-tricks-template-assembler/

Anonymous

Anonymous Mon 26 Oct 2015 09:58:28 No.51018766 Report Delete

Quoted By:

>>51018653
>ctrl-click the word add
>your IDE shows you the implementation of the function

>ctrl-click +
>nothing happens

wow

Anonymous

Anonymous Mon 26 Oct 2015 09:59:44 No.51018784 Report Delete

Quoted By: >>51018798 >>51018809

>IDE doesn't have line numbers enabled as default

why?

Anonymous

Anonymous Mon 26 Oct 2015 10:00:30 No.51018794 Report Delete

Quoted By: >>51018822 >>51019290

>>51018721
function definition = wraps the arguments into a tuple
function call = unpacks the sequence into arguments

Anonymous

Anonymous Mon 26 Oct 2015 10:00:35 No.51018798 Report Delete

Quoted By:

>>51018784
what use do line numbers have

Anonymous

Anonymous Mon 26 Oct 2015 10:00:46 No.51018800 Report Delete

Quoted By: >>51019648

help !
visual studio 2013 suddenly got really REALLY slow.

starting, running, compiling, building.
everything has suddenly become so slow.
what the fuck could have happened?
simple things now take so much time.
i am using it on win 8.1

Anonymous

Anonymous Mon 26 Oct 2015 10:01:41 No.51018809 Report Delete

Quoted By:

>>51018784
We're not programming in basic anymore.

Anonymous

Anonymous Mon 26 Oct 2015 10:02:31 No.51018822 Report Delete

Quoted By:

>>51018794

thank you based

might have another question later

Anonymous

Anonymous Mon 26 Oct 2015 10:03:10 No.51018830 Report Delete

Quoted By:

>>51017457
I've used Go for about half a year for a decent number of personal projects and even a few at my work. I think that >>51017928's points are good, Go is meant to be a very simple language, and that has certain benefits and drawbacks. It makes your code much more explicit than implicit which can be good sometimes, but also bad at others. You should also be somewhat skeptical about Go's concurrency. Languages like D and Rust have taken the right approach by encouraging immutability and shared-nothing actor like concurrency models as well as using more functional paradigms. When you consider that Erlang/Elixir pretty much beat out Go in the concurrency department, there really isn't that much of a reason to use it.

Anonymous

Anonymous Mon 26 Oct 2015 10:04:40 No.51018846 Report Delete

Quoted By: >>51018981

>>51018761
oh hehe. neat tricks. my only real concern with C++'s extreme flexibility is some perp deciding that using some 'clever' approach like that would really be best because 'muh_comfy_syntax', and leaving it behind for us to try and maintain after he gets canned over it.

but it's fun for a Sunday afternoon.

Anonymous

Anonymous Mon 26 Oct 2015 10:07:10 No.51018885 Report Delete

Quoted By:

>.NET standard library has support for tons of super obscure shit
>but not for creating excel and csv files
what the fuck

Anonymous

Anonymous Mon 26 Oct 2015 10:13:53 No.51018973 Report Delete

Quoted By:

>>51018628
Why can't you?

Anonymous

Anonymous Mon 26 Oct 2015 10:14:37 No.51018981 Report Delete

Quoted By: >>51019257

>>51018846
imo you have that problem in every language:
- stupid variable names
- stupid class names & behaviours
- stupid operator overloads
- stupid functions

etc

Anonymous

Anonymous Mon 26 Oct 2015 10:15:56 No.51018996 Report Delete

Quoted By: >>51019014 >>51019015 >>51019034 >>51019058 >>51019066 >>51019072 >>51019078 >>51019137

Anyone here used Updog before?

Anonymous

Anonymous Mon 26 Oct 2015 10:17:38 No.51019014 Report Delete

Quoted By:

>>51018996
yes, your're mome

Anonymous

Anonymous Mon 26 Oct 2015 10:17:42 No.51019015 Report Delete

Quoted By:

>>51018996
no

Anonymous

Anonymous Mon 26 Oct 2015 10:18:53 No.51019034 Report Delete

Quoted By: >>51019063

>>51018996
I don't happen to know what Updog is. Could you tell me more about Updog?

Anonymous

Anonymous Mon 26 Oct 2015 10:20:58 No.51019058 Report Delete

Quoted By:

>>51018996
Is it frob-like?

Anonymous

Anonymous Mon 26 Oct 2015 10:21:10 No.51019063 Report Delete

Quoted By:

>>51019034
It's kind of like a #Frob#

Anonymous

Anonymous Mon 26 Oct 2015 10:21:16 No.51019066 Report Delete

Quoted By:

>>51018996
How are you doing?

Anonymous

Anonymous Mon 26 Oct 2015 10:21:39 No.51019072 Report Delete

Quoted By: >>51019083 >>51019100

>>51018996
what's Updog???

Anonymous

Anonymous Mon 26 Oct 2015 10:21:44 No.51019073 Report Delete

Quoted By: >>51019163 >>51019196

If i have an enum in a c++ class called enum Suit {CLUBS, SPADES, HEARTS, DIAMONDS};
and a public function that takes in Suit as a parameter such as Void Set(Suit S); what kind of value do i pass in from main as the parameter

Anonymous

Anonymous Mon 26 Oct 2015 10:22:03 No.51019078 Report Delete

Quoted By:

>>51018996
wassup my niggr hows it hangin in d hood

Anonymous

Anonymous Mon 26 Oct 2015 10:22:12 No.51019083 Report Delete

Quoted By: >>51019161

>>51019072
Thank you.
Not much, you?

Anonymous

Anonymous Mon 26 Oct 2015 10:23:25 No.51019100 Report Delete

Quoted By:

>>51019072
noo, you gave him the pleasure

Anonymous

Anonymous Mon 26 Oct 2015 10:23:43 No.51019106 Report Delete

Quoted By: >>51022855

>>51017300
I'm trying to write a Greasemonkey-JQuery script to filter some annoying posts in a 4chan board, but it appears that Greasemonkey screws 4chan's own Javascript.

How can I solve that?

Anonymous

Anonymous Mon 26 Oct 2015 10:25:43 No.51019137 Report Delete

Quoted By: >>51019161

>>51018996
What's updog?

Anonymous

Anonymous Mon 26 Oct 2015 10:27:09 No.51019161 Report Delete

Quoted By: >>51019191

>>51019137
>>51019083

Anonymous

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Anonymous Mon 26 Oct 2015 10:27:26 No.51019163 Report Delete

Quoted By: >>51019193 >>51019204 >>51019210

Ask your beloved programming literate anything.

>>51019073
c++ enum is unsafe

Anonymous

Anonymous Mon 26 Oct 2015 10:29:32 No.51019191 Report Delete

Quoted By:

>>51019161
Having my morning coffee. Relaxing for now with some music. Should I do Learn Python the Hard Way, thread? I already have a grasp of C++/Java.

Anonymous

Anonymous Mon 26 Oct 2015 10:29:38 No.51019193 Report Delete

Quoted By:

>>51019163
enum class {}

Anonymous

Anonymous Mon 26 Oct 2015 10:29:42 No.51019196 Report Delete

Quoted By:

>>51019073
IIRC C++ enums are converted to int, if thats what you're asking
you should probably use:

enum class Suit

Anonymous

Anonymous Mon 26 Oct 2015 10:30:03 No.51019204 Report Delete

Quoted By: >>51019222

>>51019163
Where do you get those cute pictures?

Anonymous

Anonymous Mon 26 Oct 2015 10:30:33 No.51019210 Report Delete

Quoted By:

>>51019163
What can I do if I want to write a PHP script that makes queries to a MySQL database, but I don't want to write directly my user and password into that PHP script?

Anonymous

Anonymous Mon 26 Oct 2015 10:30:48 No.51019214 Report Delete

Quoted By:

>>51018578
>java doesn't let you do that because it allows for bad coding practices.
Absolutely everything in Java can be used for bad coding practices if you want.

Anonymous

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Anonymous Mon 26 Oct 2015 10:31:09 No.51019220 Report Delete

Quoted By: >>51019252

18 senior fag here taking CS elective and we'll first time ever working with java and code in general. We're making a Program that let's us calculate the price of a speeding ticket. I'm stuck on one section were we have to get it to charge a extra 130 for speeding in a school zone. I can't find any examples in our text book or slides. On top of that teacher is gone and Idk what to do.

Anonymous

Anonymous Mon 26 Oct 2015 10:31:12 No.51019222 Report Delete

Quoted By:

>>51019204
9gag

Anonymous

Anonymous Mon 26 Oct 2015 10:33:05 No.51019244 Report Delete

Quoted By:

I just started learning c#, so I have a question: What does differentiate good programming from bad programming?

Anonymous

Anonymous Mon 26 Oct 2015 10:33:35 No.51019252 Report Delete

Quoted By: >>51019330

>>51019220
Hello friend, welcome to this friendly community.
Try the following:

if (was_speeding_in_school_zone)
{
 price = price + 130;
}

Anonymous

Anonymous Mon 26 Oct 2015 10:33:50 No.51019257 Report Delete

Quoted By: >>51019288 >>51019322

>>51018981
Operator overloading is different from stupid function names. There is really no good reason for operator overloading when you can pass functions as arguments and when you can shadow functions.

Consider a generic algorithm that works on some monoid. You pass it the binop as an argument. Internally the algorithm binds the binop to the function name '+' and it looks nice and tidy inside the algorithm where it matters, but you don't have a host of retarded fucking overloads leading to highly questionable code.

Of course it doesn't fix the fact that your algorithm expects something semantically like addition and the user passes something like deleting files, this is rightly an irrelevant point.

The real problem is that C and C++ is dumb and made + an ``operator'' rather than just another function.

Anonymous

Anonymous Mon 26 Oct 2015 10:35:55 No.51019281 Report Delete

Quoted By:

>>51018653
In your example, a and b wouldn't normally be modified. You can write the add method such as it can modify both operands.

A normal, non-overloaded + would never do this.

Anonymous

Anonymous Mon 26 Oct 2015 10:36:26 No.51019288 Report Delete

Quoted By: >>51019530

>>51019257
What's the difference between an operator and a binary function aside from the ordering? What do you mean C++ is stupid?

Anonymous

Anonymous Mon 26 Oct 2015 10:36:30 No.51019290 Report Delete

Quoted By:

>>51018794

last question

"Explain why you need to be careful about using mutable datatypes as default keyword arguments. Describe what you can do to avoid the problematic behavior, and also describe why this behavior might be useful in certain cases."

from what i have read i guess it would be dangerous to pass mutable objects because they can be changed?

Anonymous

Anonymous Mon 26 Oct 2015 10:38:37 No.51019322 Report Delete

Quoted By: >>51019614

>>51019257
>operator overloading is different from tstupid function names

The only difference between an overloaded operator and a function name is that it saves syntax.

In VC++15 you can mouseover the + and it will tell you which function is being used.

Operator overloading:
x.operator+(y);
->
x + y;
How can you argue against that?

Anonymous

Anonymous Mon 26 Oct 2015 10:38:56 No.51019330 Report Delete

Quoted By: >>51019369 >>51019384 >>51019839

>>51019252
That part I have figured out what I'm stuck on is how to make it were we can input a yes or no answer. When the program asks if the speeding violation was committed in a school zone.

I think has to do something with 2 way selection.

Anonymous

Anonymous Mon 26 Oct 2015 10:40:51 No.51019351 Report Delete

Quoted By:

>>51018589
https://git-annex.branchable.com/
https://propellor.branchable.com/

Anonymous

Anonymous Mon 26 Oct 2015 10:41:53 No.51019369 Report Delete

Quoted By: >>51019422

>>51019330
>2 way selection.
What the f*ck is 2-way selection?

Anonymous

Anonymous Mon 26 Oct 2015 10:42:39 No.51019376 Report Delete

Quoted By:

>>51018631
nice goalpost moving

Anonymous

Anonymous Mon 26 Oct 2015 10:43:24 No.51019384 Report Delete

Quoted By:

>>51019330
You just use a system.in scanner, get next string and compare string to "yes" or "y"?

Anonymous

Anonymous Mon 26 Oct 2015 10:44:43 No.51019398 Report Delete

Quoted By:

How do you compile a C/C++ module with libclang ? The only thing on the subject I could find is outdated, as the project got the API changed multiple times.

Anonymous

Anonymous Mon 26 Oct 2015 10:46:41 No.51019422 Report Delete

Quoted By: >>51019448 >>51019454

>>51019369
>What the f*ck is 2-way selection?

if input == "yes" is True:
 return True
elif input == "yes" is False:
 return False
else:
 raise SystemError("Excluded middle violation.")

Anonymous

Anonymous Mon 26 Oct 2015 10:48:33 No.51019448 Report Delete

Quoted By:

>>51019422
>elif
suck language for lazy people

Anonymous

Anonymous Mon 26 Oct 2015 10:49:10 No.51019454 Report Delete

Quoted By:

>>51019422
chuckled

Anonymous

Anonymous Mon 26 Oct 2015 10:50:39 No.51019472 Report Delete

Quoted By: >>51019491 >>51019511

>>51017300
Could somebody explain me how I convert -13,6875 into a binary floatingpoint?

Anonymous

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Anonymous Mon 26 Oct 2015 10:50:40 No.51019473 Report Delete

Quoted By: >>51019575

>tfw learning the syntax of my fifth language without going in depth into any one
>mom keeps asking when I'll be able to get a job as a programmer

Anonymous

Anonymous Mon 26 Oct 2015 10:52:09 No.51019491 Report Delete

Quoted By: >>51019502 >>51019525

>>51019472
What base? 2 or 10?

Anonymous

Anonymous Mon 26 Oct 2015 10:53:20 No.51019502 Report Delete

Quoted By:

>>51019491
also is that a normal comma (-136875) or a shitty decimal comma (-13.6875)

Anonymous

Anonymous Mon 26 Oct 2015 10:53:50 No.51019511 Report Delete

Quoted By:

>>51019472

float f = -13.6875f;
int bf = *(int*)&f;

Anonymous

Anonymous Mon 26 Oct 2015 10:53:58 No.51019517 Report Delete

Quoted By: >>51019543

Explain this shit, pychumps:

>>> True = False
>>> True is False
True
>>> (True is False) is False
False

Anonymous

Anonymous Mon 26 Oct 2015 10:54:59 No.51019525 Report Delete

Quoted By: >>51019542

>>51019491
I just want to display -13.6875 as an floating point in binary system.

Anonymous

Anonymous Mon 26 Oct 2015 10:55:30 No.51019530 Report Delete

Quoted By: >>51019556

>>51019288
>What's the difference between an operator and a binary function aside from the ordering?
You can pass a function as an argument. Try passing + as an argument.

Anonymous

Anonymous Mon 26 Oct 2015 10:56:05 No.51019542 Report Delete

Quoted By: >>51019577

>>51019525
>_>
<_<
>_>
I'm going to hurt you.

Anonymous

Anonymous Mon 26 Oct 2015 10:56:09 No.51019543 Report Delete

Quoted By: >>51019569

>>51019517
nice try faggot

>>> True = False
 File "<stdin>", line 1
SyntaxError: can't assign to keyword

Anonymous

Anonymous Mon 26 Oct 2015 10:57:06 No.51019556 Report Delete

Quoted By: >>51019629

>>51019530
>&class::operator+

Anonymous

Anonymous Mon 26 Oct 2015 10:58:19 No.51019569 Report Delete

Quoted By: >>51019594

>>51019543
Python2 m8.

Anonymous

Anonymous Mon 26 Oct 2015 10:58:39 No.51019575 Report Delete

Quoted By:

>>51019473
iktf except
>tfw legitimately want to be paid to program

Anonymous

Anonymous Mon 26 Oct 2015 10:58:51 No.51019577 Report Delete

Quoted By: >>51019604

>>51019542
Okay :( Help me, I need for university

Anonymous

Anonymous Mon 26 Oct 2015 10:59:37 No.51019594 Report Delete

Quoted By: >>51019608

>>51019569
obsolete

Anonymous

Anonymous Mon 26 Oct 2015 11:00:02 No.51019604 Report Delete

Quoted By: >>51019638

>>51019577
are you storing -13.6875 as
a*10^b
or
a*2^b

Anonymous

Anonymous Mon 26 Oct 2015 11:00:20 No.51019608 Report Delete

Quoted By:

>>51019594
That's why all the scientific python libs use python3, amirite :^)

Anonymous

Anonymous Mon 26 Oct 2015 11:00:41 No.51019614 Report Delete

Quoted By: >>51019628

>>51019322
>The only difference between an overloaded operator and a function name is that it saves syntax.
No.

>In VC++15 you can mouseover the + and it will tell you which function is being used.
So piling a feature on top of a feature to fix a problem with the original feature is considered a plus. OK. Whatever man.

Anonymous

Anonymous Mon 26 Oct 2015 11:01:41 No.51019628 Report Delete

Quoted By: >>51019651

>>51019614
>No
Yes.
>
Pulling straws from straws.

Anonymous

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Anonymous Mon 26 Oct 2015 11:01:47 No.51019629 Report Delete

Quoted By:

>>51019556

Anonymous

Anonymous Mon 26 Oct 2015 11:02:30 No.51019638 Report Delete

Quoted By: >>51019692 >>51019779

>>51019604
ieee?

Anonymous

Anonymous Mon 26 Oct 2015 11:03:26 No.51019648 Report Delete

Quoted By:

>>51018800
just restart the damn thing, it happens all the time.

Anonymous

Anonymous Mon 26 Oct 2015 11:03:47 No.51019651 Report Delete

Quoted By: >>51019676

>>51019628
>Yes.
What is the address of the built-in operator +?

Anonymous

Anonymous Mon 26 Oct 2015 11:05:29 No.51019676 Report Delete

Quoted By: >>51019803

>>51019651
>built in
not an overloaded operator by definition

Anonymous

Anonymous Mon 26 Oct 2015 11:06:30 No.51019692 Report Delete

Quoted By: >>51019711 >>51019736 >>51019779

>>51019638
first convert -13.6875 to binary

Anonymous

Anonymous Mon 26 Oct 2015 11:08:00 No.51019711 Report Delete

Quoted By: >>51019779

>>51019692
Fuck you fucking fag, man, I already did this but how do I put this with single precision shit

Anonymous

Anonymous Mon 26 Oct 2015 11:09:44 No.51019736 Report Delete

Quoted By: >>51019764 >>51019775 >>51019779

>>51019692
13,6875 = 1101,1011
Than I need to put a 1 because it's negative,
exp should be 130?

Anonymous

Anonymous Mon 26 Oct 2015 11:11:37 No.51019764 Report Delete

Quoted By: >>51019779 >>51019795

>>51019736
Is it not two's complement?
Normal:
(+/-) +8 +4 +2
Two's complement:
-16 +8 +4 +2 ...

Anonymous

Anonymous Mon 26 Oct 2015 11:12:14 No.51019775 Report Delete

Quoted By:

>>51019736
first you learn proper english, then you go to college.

Anonymous

Anonymous Mon 26 Oct 2015 11:12:38 No.51019779 Report Delete

Quoted By: >>51019823

>>51019764
>>51019736
>>51019711
>>51019692
>>51019638
http://www.h-schmidt.net/FloatConverter/IEEE754.html

Anonymous

Anonymous Mon 26 Oct 2015 11:13:20 No.51019795 Report Delete

Quoted By: >>51019809 >>51019887

>>51019764
they want me to show -13.6875 as a IEEE floating point. IEEE floating point consists of 1 bit for + or -, than the exponent, and than something else I dont understand

Anonymous

Anonymous Mon 26 Oct 2015 11:14:05 No.51019803 Report Delete

Quoted By: >>51019829

>>51019676
Which is my point. That's stupid. Which requires stupid operator overloading to incompletely fix.

Which is why I said C and C++ should just have functions and do away with the idea of ``operators''.

Anonymous

Anonymous Mon 26 Oct 2015 11:14:23 No.51019809 Report Delete

Quoted By: >>51019823 >>51019830

>>51019795
Oh, I thought it was 2's complement.
Does the exponent also have an explicit sign bit?
(FYI the part before the exponent is the mantissa)

Anonymous

Anonymous Mon 26 Oct 2015 11:15:10 No.51019823 Report Delete

Quoted By: >>51019857

>>51019779
Thanks man!.

>>51019809
I give up, fuck this shit

Anonymous

Anonymous Mon 26 Oct 2015 11:15:27 No.51019829 Report Delete

Quoted By: >>51019953

>>51019803
>operator overloading is stupid
>operators are stupid

Anonymous

Anonymous Mon 26 Oct 2015 11:15:29 No.51019830 Report Delete

Quoted By: >>51019875

>>51019809
Why would you need more than one sign bit????

Anonymous

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Anonymous Mon 26 Oct 2015 11:16:23 No.51019839 Report Delete

Quoted By:

>>51019330
>2 way selection

Anonymous

Anonymous Mon 26 Oct 2015 11:17:41 No.51019857 Report Delete

Quoted By:

>>51019823
It's not that bad.
[Mantissa][Exponent]

Sign bit vs two's complement just addresses how you write positive and negative numbers.

In scientific notation:
3x10^8
3 is the mantissa

Anonymous

Anonymous Mon 26 Oct 2015 11:19:10 No.51019875 Report Delete

Quoted By:

>>51019830
Two's complement doesn't "use more than one sign bit", it doesn't use a sign bit at all - but it still has half the range.

Two's complement: First number is negative.
e.g. -16 + 8 + 4 + 2 + 1

It makes adding and some other things simpler for the processor

Anonymous

Anonymous Mon 26 Oct 2015 11:19:24 No.51019878 Report Delete

Quoted By:

does anyone else think being good at programming is all genetics? some people just "get it" while others dont?

Anonymous

Anonymous Mon 26 Oct 2015 11:19:52 No.51019887 Report Delete

Quoted By: >>51019909

>>51019795
kill yourself you stupid piece of shit

Anonymous

Anonymous Mon 26 Oct 2015 11:20:35 No.51019893 Report Delete

Quoted By: >>51019931

When my chink professor taught us about the Try-Catch Block, I pretended that he was teaching us kung-fu.

Anonymous

Anonymous Mon 26 Oct 2015 11:21:07 No.51019899 Report Delete

Quoted By: >>51019912 >>51019924 >>51019928

What are the must have web dev programming languages?

Anonymous

Anonymous Mon 26 Oct 2015 11:21:11 No.51019900 Report Delete

Quoted By: >>51019932

Anyone here used Mattababy before?

Anonymous

Anonymous Mon 26 Oct 2015 11:21:59 No.51019909 Report Delete

Quoted By: >>51019919

>>51019887
I'm just preparing it, will do it in the afternoon, thanks :)

Anonymous

Anonymous Mon 26 Oct 2015 11:22:12 No.51019912 Report Delete

Quoted By:

>>51019899
Haskell for the backend and Elm for the frontend

Anonymous

Anonymous Mon 26 Oct 2015 11:22:56 No.51019919 Report Delete

Quoted By: >>51020618

>>51019909
X--DD

Anonymous

Anonymous Mon 26 Oct 2015 11:23:09 No.51019924 Report Delete

Quoted By:

>>51019899
C# with ASP.NET

Anonymous

Anonymous Mon 26 Oct 2015 11:23:31 No.51019928 Report Delete

Quoted By:

>>51019899

>muh js frameworks
>muh node

Anonymous

Anonymous Mon 26 Oct 2015 11:23:35 No.51019931 Report Delete

Quoted By:

>>51019893
>kung fu
>relevant

Anonymous

Anonymous Mon 26 Oct 2015 11:23:38 No.51019932 Report Delete

Quoted By: >>51020058

>>51019900
Yeah, but it's too low level so I'm designing a new high level language that compiles to Mattababy. It's called Mattawitchu.

Anonymous

Anonymous Mon 26 Oct 2015 11:25:17 No.51019953 Report Delete

Quoted By:

>>51019829
These are both true.

Anonymous

Anonymous Mon 26 Oct 2015 11:26:10 No.51019967 Report Delete

Quoted By: >>51019977 >>51019990 >>51019992 >>51020008

just landed first programming job. Nervous but excited.

What am i in for, /g/?

Anonymous

Anonymous Mon 26 Oct 2015 11:27:15 No.51019977 Report Delete

Quoted By:

>>51019967
easy money

Anonymous

Anonymous Mon 26 Oct 2015 11:28:14 No.51019990 Report Delete

Quoted By:

>>51019967
The worst experience of your life

Anonymous

Anonymous Mon 26 Oct 2015 11:28:19 No.51019992 Report Delete

Quoted By:

>>51019967
mad pussy

Anonymous

Anonymous Mon 26 Oct 2015 11:29:08 No.51020002 Report Delete

Quoted By: >>51020021 >>51020053 >>51020073 >>51020080

How do I disable the close button on a Windows installer dialog boxes?

I don't want the user to be of closing the installer by a mistake. Is there a way to do this with the winapi?

I try calling DLL user32.dll like it read in MSDN

but I dont know what function to use?

Anonymous

Anonymous Mon 26 Oct 2015 11:29:40 No.51020008 Report Delete

Quoted By:

>>51019967
Monotonous shit

Anonymous

Anonymous Mon 26 Oct 2015 11:30:38 No.51020021 Report Delete

Quoted By:

>>51020002
I hate it when I can't force quit an installation.

Anonymous

Anonymous Mon 26 Oct 2015 11:32:45 No.51020053 Report Delete

Quoted By:

>>51020002
Why would you do this? It's their computer, not yours.

Anonymous

Anonymous Mon 26 Oct 2015 11:33:08 No.51020058 Report Delete

Quoted By:

>>51019932
Nice, would love to know more.

Anonymous

Anonymous Mon 26 Oct 2015 11:33:29 No.51020064 Report Delete

Quoted By: >>51020072

How do I disable the uninstall button for my applications?

Anonymous

Anonymous Mon 26 Oct 2015 11:34:04 No.51020072 Report Delete

Quoted By:

>>51020064
Prick

Anonymous

Anonymous Mon 26 Oct 2015 11:34:05 No.51020073 Report Delete

Quoted By: >>51020173

>>51020002
I've given this answer out before, but here, i'm feeling generous today.

use GetSystemMenu to find the unique identifier of the system controls associated with that program's window. Write it into a variable like $menu

then,

DllCall("user32.dll", "int", "RemoveMenu", "hwnd", $menu[0] , "int", $SC_MOVE, "int", 0x0)
DllCall("user32.dll", "int", "RemoveMenu", "hwnd", $menu[0] , "int", $SC_SIZE, "int", 0x0)
DllCall("user32.dll", "int", "RemoveMenu", "hwnd", $menu[0] , "int", $SC_CLOSE, "int", 0x0)
DllCall("user32.dll", "int", "RemoveMenu", "hwnd", $menu[0] , "int", $SC_MINIMIZE, "int", 0x0)
DllCall("user32.dll", "int", "RemoveMenu", "hwnd", $menu[0] , "int", $SC_MAXIMIZE, "int", 0x0)

That should make a totally unresponsive locked-down window suitable for the most gestapo software. Be aware this upsets some users when they feel trapped, I would only do this to a small window during a critical install process like a driver.

Make sure you use DrawMenuBar with the Hwnd ID of the window afterwards so that windows redraws it.

Anonymous

Anonymous Mon 26 Oct 2015 11:34:32 No.51020080 Report Delete

Quoted By:

>>51020002
You can unset the sysmenu and caption window style with SetWindowLong (only cosmetic change, can still alt-f4 for example) or you can subclass the dialog box message procedure and make the close action a no-op.

Anonymous

Anonymous Mon 26 Oct 2015 11:41:34 No.51020173 Report Delete

Quoted By:

>>51020073
fuck you spoonfeeding asshole.

Anonymous

Anonymous Mon 26 Oct 2015 11:43:18 No.51020207 Report Delete

Quoted By:

Uh, why do parameter modes have to be so convoluted in Ada?
Why can't it be just pass by value and pass by reference like in Pascal?

So, which one of those copies the value and which one references it?
>in
>out
>in out
Or do I use an entirely different parameter mode to pass by reference?

Anonymous

Anonymous Mon 26 Oct 2015 11:44:39 No.51020237 Report Delete

Quoted By:

I've started learning Qt and have been learning how to use the Model-View stuff like QAbstractListModel.

How can I work with other widgets like TextEdit in a Model-View way? At the moment my model is a 'note' which has a QString name and QString contents.

The ListView in my form displays a list of all the note names, and I want to display the contents of the selected note in a TextEdit widget.

I could just use the 'setText' function on the TextEdit widget whenever a different note is selected in the ListView but this seems messy and kinda defeats the point of using Model-View for the list view.

Anonymous

Anonymous Mon 26 Oct 2015 11:45:30 No.51020252 Report Delete

Quoted By: >>51020306 >>51020328 >>51020353

How do I make my program always on top, uncloseable and run at startup?

I don' want the user to accidentally exit my program.

Anonymous

Anonymous Mon 26 Oct 2015 11:48:29 No.51020304 Report Delete

Quoted By:

I'm learning C and I've written this shit:
[code}
#include <stdio.h>
#include <stdlib.h>
#include <math.h>

int main()
{
float a0=1;
float a1=1.5;
float a2=2;
int i=3;
float a3;
int x;
scanf("%d", &x);
switch(x)
{
case 1:
printf("1: %f\n",a0);
break;
case 2:
printf("1: %f\n",a0);
printf("2: %f\n",a1);
break;
case 3:
printf("1: %f\n",a0);
printf("2: %f\n",a1);
printf("3: %f\n",a2);
default:
printf("1: %f\n",a0);
printf("2: %f\n",a1);
printf("3: %f\n",a2);
while(i++<x)
{
a3=a2*sqrt(a1+a0);
printf("%d: %f\n",i, a3);
a0=a1;
a1=a2;
a2=a3;

}
break;
}
system("pause");
return 0;
}
[/code:lit]
My question is: how to make it better/shorter/cleaner, using methods for newbies? stdlib.h is for system("pause"), which i'm obliged to use.

Anonymous

Anonymous Mon 26 Oct 2015 11:48:33 No.51020306 Report Delete

Quoted By:

>>51020252
Why are you trying to rip off the blue screen of death?

Anonymous

Anonymous Mon 26 Oct 2015 11:49:59 No.51020327 Report Delete

Quoted By: >>51020437 >>51020477 >>51020539 >>51020813 >>51021619

I'm learning C and I've written this shit:

#include <stdio.h>
#include <stdlib.h>
#include <math.h>

int main()
{
float a0=1;
float a1=1.5;
float a2=2;
int i=3;
float a3;
int x;
scanf("%d", &x);
switch(x)
{
case 1:
printf("1: %f\n",a0);
break;
case 2:
printf("1: %f\n",a0);
printf("2: %f\n",a1);
break;
case 3:
printf("1: %f\n",a0);
printf("2: %f\n",a1);
printf("3: %f\n",a2);
default:
printf("1: %f\n",a0);
printf("2: %f\n",a1);
printf("3: %f\n",a2);
while(i++<x)
{
a3=a2*sqrt(a1+a0);
printf("%d: %f\n",i, a3);
a0=a1;
a1=a2;
a2=a3;

}
break;
}
system("pause");
return 0;
}

My question is: how to make it better/shorter/cleaner, using methods for newbies? stdlib.h is for system("pause"), which i'm obliged to use.

Anonymous

Anonymous Mon 26 Oct 2015 11:50:03 No.51020328 Report Delete

Quoted By:

>>51020252
https://msdn.microsoft.com/en-us/library/windows/desktop/ff700543(v=vs.85).aspx
Set WS_EX_TOPMOST using extended window styles via user32.dll

Apply what this anon said to remove the system menu and caption, and then make it uncloseable by removing the close option from its menu with RemoveMenu.

To make a program run at startup write an entry into HKCU\Software\Microsoft\Windows\CurrentVersion\Run

The entry should be a string with the full path to the executable.

Anonymous

Anonymous Mon 26 Oct 2015 11:50:56 No.51020346 Report Delete

Quoted By: >>51020416

How do I write program that runs at startup, makes the user enable to do anything and disables shutting off the system? I don't want to let the user accidentally mess up things

Anonymous

Anonymous Mon 26 Oct 2015 11:51:17 No.51020353 Report Delete

Quoted By:

>>51020252
>user
More like the victim of your shitty malware

Anonymous

Anonymous Mon 26 Oct 2015 11:54:21 No.51020403 Report Delete

Quoted By: >>51020412

How do I make it so the application automatically transfers the users money to my Nigerian bank account? The user shouldn't have to manually renew their license for my wonderful program.

Much love,
Prince Sawetchakennapo of Nigeria

Anonymous

Anonymous Mon 26 Oct 2015 11:55:00 No.51020412 Report Delete

Quoted By:

>>51020403
install ask toolbar

Anonymous

Anonymous Mon 26 Oct 2015 11:55:10 No.51020416 Report Delete

Quoted By: >>51020439

>>51020346
Your 1st question is too vague but to prevent the user from shutting off the system, set the following registry values:
: [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
Explorer] create a DWORD 32 bits, of name "NoClose" and value 1. This removes shutdown from the start menu.

To remove it from the CTRL+ALT+DEL security options, use this key:
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system] create a DWORD 32-bits, of name "shutdownwithoutlogon" and value 0

Anonymous

Anonymous Mon 26 Oct 2015 11:56:21 No.51020437 Report Delete

Quoted By: >>51020714

>>51020327
you could start by indenting your code

Anonymous

Anonymous Mon 26 Oct 2015 11:56:23 No.51020439 Report Delete

Quoted By: >>51020454

>>51020416
Please note that if the user is sitting at the local machine, they will always be able to shut down the system by pressing the power button on the machine.

This setting is intended for remote access or to keep thin client users from turning a server off.

Anonymous

Anonymous Mon 26 Oct 2015 11:57:38 No.51020454 Report Delete

Quoted By: >>51020476 >>51020519

>>51020439
How do I stop my user from accessing the power button or calling for help?

Anonymous

Anonymous Mon 26 Oct 2015 11:58:57 No.51020476 Report Delete

Quoted By:

>>51020454
Kill them.

Anonymous

Anonymous Mon 26 Oct 2015 11:59:01 No.51020477 Report Delete

Quoted By: >>51020714

>>51020327

printf("1: %f\n",a0);
if (x == 1) break;
printf("2: %f\n",a1);
if (x == 2) break;
printf("3: %f\n",a2);

Anonymous

Anonymous Mon 26 Oct 2015 12:01:46 No.51020519 Report Delete

Quoted By:

>>51020454
Stop answering this guy man he's just fucking with you he doesn't actually have use for that information he just wants to see how much he can pull your leg into "helping" him.

Its funny to me tho that all of these answers are actually correct, I wonder if its a boomer replying to the troll

Anonymous

Anonymous Mon 26 Oct 2015 12:03:06 No.51020539 Report Delete

Quoted By: >>51020548 >>51020714

>>51020327
in C we generally dont call them methods. though they are fundementally the same.

anyway, http://pastebin.com/E0k2xwSW

I'm guessing "i" must be used further down, but i commented it out anyway.

Anonymous

Anonymous Mon 26 Oct 2015 12:03:43 No.51020548 Report Delete

Quoted By: >>51020574 >>51020617

>>51020539
That's right, hope you call them procedures yourself.

Anonymous

Anonymous Mon 26 Oct 2015 12:05:15 No.51020574 Report Delete

Quoted By: >>51020592

>>51020548
>procedures
never heard that

Anonymous

Anonymous Mon 26 Oct 2015 12:06:51 No.51020592 Report Delete

Quoted By: >>51020628

>>51020574
That's the correct term. You may also call them subroutines. They certainly aren't functions since they aren't pure expressions.

Anonymous

Anonymous Mon 26 Oct 2015 12:08:32 No.51020617 Report Delete

Quoted By: >>51020685

>>51020548
functions generally, I always thought of methods as member functions of a class. subroutines were functions without a return value.

procedures were something i never called them, but i have heard it from my instructor in college.

most regrettable years of my life, teaching us how to get a job in a facebook game mill.

Anonymous

Anonymous Mon 26 Oct 2015 12:08:36 No.51020618 Report Delete

Quoted By:

>>51019919
:^) mi frind is le epic

Anonymous

Anonymous Mon 26 Oct 2015 12:09:13 No.51020628 Report Delete

Quoted By: >>51020685 >>51020729

>>51020592
Would like to see a source on that, all relevant documents clearly refer to them as functions.

Anonymous

Anonymous Mon 26 Oct 2015 12:10:18 No.51020649 Report Delete

Quoted By: >>51020678 >>51020685

Daily reminder not to listen to the functional language definition of function

Anonymous

Anonymous Mon 26 Oct 2015 12:12:39 No.51020678 Report Delete

Quoted By:

>>51020649
Haskell is MEME LANGUAGE

Anonymous

Anonymous Mon 26 Oct 2015 12:13:13 No.51020685 Report Delete

Quoted By:

>>51020617
>>51020628

Guess it depends on the viewpoint actually >>51020649. I've been reading too much papers about functional programming.

Anonymous

Anonymous Mon 26 Oct 2015 12:13:59 No.51020696 Report Delete

Quoted By:

anyone work from home? how do you like it? do you make enough to live?

Anonymous

Anonymous Mon 26 Oct 2015 12:15:04 No.51020711 Report Delete

Quoted By:

So how can I take a dynamic cast of and get the strlen of it?

essentially


(dynamic_cast<Cats*>(v))->Breed();
const unsigned int C5 = strlen() + c5;

how do I get the strlen(string length) of that dynamic_cast I just did?

Anonymous

Anonymous Mon 26 Oct 2015 12:15:15 No.51020714 Report Delete

Quoted By:

>>51020437
I thought it was, control+c control-v magic.
>>51020477
Thanks
>>51020539
You ommited this part

while(i++<x){
a3=a2*sqrt(a1+a0);
printf("%d: %f\n",i, a3);
a0=a1;
a1=a2;
a2=a3;
}

But thanks anyway, I'll learn arrays after practicing loops

Anonymous

Anonymous Mon 26 Oct 2015 12:16:43 No.51020729 Report Delete

Quoted By: >>51020752 >>51021107

>>51020628
Yes but in the real world we aren't just jerking off a standards committee, we're working with users across a wide spectrum. In this case functions mean pure procedures, procedures means procedures which may or may not be pure, and methods are generally reserved for the cult of the object to wank over.

Anonymous

Anonymous Mon 26 Oct 2015 12:19:22 No.51020752 Report Delete

Quoted By: >>51020792 >>51021107

>>51020729
And thus you shouldn't nitpick about methods vs functions in the first place or else you will summon more nitpickers

Anonymous

Anonymous Mon 26 Oct 2015 12:23:18 No.51020792 Report Delete

Quoted By: >>51020840 >>51021107

>>51020752
Well yes, I agree with that. I am not that posters, I was a drive by. Sorry for any confusion this may have caused my programming friend.

Anonymous

Anonymous Mon 26 Oct 2015 12:25:04 No.51020813 Report Delete

Quoted By:

>>51020327

#include <stdio.h>
#include <stdlib.h>
#include <math.h>

int main()
{
 float a[4]=(1, 1.5, 2);
 int i=3;
 int x;
 scanf("%d", &x);
 
 if (x > 0 && x < 3) {
 for (int j=0; j<x; j++)
 printf("%d: %f\n",j,a[j]);
 }
 else {
 while(i++<x)
 {
 a[3]=a[2]*sqrt(a[1]+a[0]); 
 printf("%d: %f\n",i, a[3]);
 for(int j = 0; j < 3; j++)
 a[j]=a[j+1];
 }
 }
 system("pause");
 return 0;
}

not gonna lie, thats some wonky ass code you have and i dont even know if its gonna work,im not sure what default is trying to accomplish, but it need not be put in a switch/case

Anonymous

Anonymous Mon 26 Oct 2015 12:27:42 No.51020840 Report Delete

Quoted By: >>51021107

>>51020792
All is well, dearest colleague

Anonymous

Anonymous Mon 26 Oct 2015 12:51:09 No.51021107 Report Delete

Quoted By:

>>51020840
>>51020792
>>51020752
>>51020729
It was me, I started this. I have done a horrible thing.

Anonymous

Anonymous Mon 26 Oct 2015 13:05:55 No.51021283 Report Delete

Quoted By: >>51021316 >>51021323 >>51021331

So, okay.

You pass by reference when you want to read a large chunk of data or you're not afraid to alter it.
You pass by value when you don't want to alter the original data, but make an iteration of it.

Is that right?

Anonymous

Anonymous Mon 26 Oct 2015 13:08:40 No.51021316 Report Delete

Quoted By: >>51021331

>>51021283
There are no general rules.

Usually you don't want to pass by value though, because for large structures that will result in filling your call stack with a copy. Instead you usually pass a const restricted version, either a const reference or a const pointer.

Anonymous

Anonymous Mon 26 Oct 2015 13:09:12 No.51021323 Report Delete

Quoted By:

>>51021283
Pass by value makes a copy, pass by reference passes in the original object.

If you alter something passed in by reference, you change the original, but at least in C++ you can make the reference "const" which means you can only read it.

Anonymous

Anonymous Mon 26 Oct 2015 13:09:57 No.51021331 Report Delete

Quoted By:

>>51021283
>>51021316
Pass by value if it's small

Copies don't have to worry about cache coherency or thread safety

Anonymous

Anonymous Mon 26 Oct 2015 13:12:34 No.51021357 Report Delete

Quoted By: >>51021415 >>51021928

I'm having a problem with python concerning the command line and printing with spaces. Here's some pseudocode of what I'm trying to do:

def spaced_words():
 while True:
 if x:
 if y:
 print """
 These words are indented in the command line.
 xxxxxxxxxxxxxxxxx.
 yyyyyyyyyyyyyyyyyy.
 zzzzzzzzzzzzzzzzzz.
 """


print "These words are not indented"

I'm making some nested ifs and whiles and when I go to print those words using """, it indents the words in the command line, which I don't want. I know If I use single quotes ("x"), it won't indent, but I'm trying to make a long list of printed sentences, which would run off the side of text editor, which I want to avoid to make the code more readable. The only way I know to make it not indent while using """ would be to just get rid of the indents in the text editor, but it makes it look horrible since it's supposed to nested inside some loops, but the text isn't actually tabbed like it should be. So how do I make it not look bad in both the command line and text editor?

Also holy shit, I was typing my question into google and could have sworn a black bar started appearing and the page beginning to morph, but it went away ;_;

Zero957

Zero957 Mon 26 Oct 2015 13:13:25 No.51021371 Report Delete

Quoted By: >>51021382 >>51021443

Greetings fellow 4chan members!
I'm seeking your advice,recently i got lucky and i ran in to a life time opportunity to work for a decent company that pays really well!
Date for the job interview is in 3 weeks and that is the time i have to boost up my knowledge as much as possible till then.

I come to you seeking aid can anyone suggest some good explaining tutorials or how these next things are connected.
How i can boost up my self in the next 3 weeks (i am prepared not to sleep)
I found out that they are working on Android applications( not sure if they are using AMS or Eclipse) and that they are using PHP and probably MySql.
What would be the first thing you would do in order to get those tinny edges and accomplishments in order to improve and to be better in the shortest period of time?

I'm sorry if this is a bother,but i would really be grateful for and kind of replay because i rarely get these kind of opportunities in my life.

Thank you in advance <3

I am familiar with C#,JS and a bit of C.
I work'd with databases in SQL.
And i know basics of PHP.

Anonymous

Anonymous Mon 26 Oct 2015 13:14:21 No.51021382 Report Delete

Quoted By:

>>51021371
>I'm seeking your advice
>>>/adv/

Anonymous

Anonymous Mon 26 Oct 2015 13:16:02 No.51021392 Report Delete

Quoted By:

are modules in lua basically classes?

Anonymous

Anonymous Mon 26 Oct 2015 13:17:43 No.51021415 Report Delete

Quoted By:

>>51021357
I don't really understand your problem. Append a bunch of separate strings if it bothers you?

Anonymous

Anonymous Mon 26 Oct 2015 13:20:01 No.51021443 Report Delete

Quoted By:

>>51021371
>pays well
>Android
>using PHP
>using MySQL
they pay well because their turnover is high because it's a shitty place to work

Anonymous

Anonymous Mon 26 Oct 2015 13:20:10 No.51021448 Report Delete

Quoted By: >>51021472

I just came out of class where we were taught how to write to a text file in Java.

I asked about flushing the PrintWriter before closing it, and my professor told me that the close() method calls flush. 5 minutes later, a kid in the row behind me says "No it doesn't call flush." I ran my tests again and the file saved without flush, but using close. The kid confused the professor to all hell because he thought the professor actually meant "calls" flush(), like, in the code for PrintWriter.close(), it calls PrintWriter.flush(). It doesn't, but it flushes.

Also, another kid asked why ++i and i++ are different. I can't wait for this semester to be over. Anyone have the programming project roulette image?

Anonymous

Anonymous Mon 26 Oct 2015 13:22:09 No.51021469 Report Delete

Quoted By: >>51021489

I'm teaching myself programming by going through the codeeval challenges, and I'm hitting a roadblock because I don't know how to take an input of arbitrary length and put it in an array.
Is this something that you can malloc on runtine, or do I need to do something more complex?

Anonymous

Anonymous Mon 26 Oct 2015 13:22:23 No.51021472 Report Delete

Quoted By:

>>51021448
>people trying to correct the instructor
should be shot

Anonymous

Anonymous Mon 26 Oct 2015 13:23:50 No.51021489 Report Delete

Quoted By: >>51021535

>>51021469
malloc is for runtime memory allocation, yes

on linux you may also want to use mmap for reasons

Anonymous

Anonymous Mon 26 Oct 2015 13:27:01 No.51021535 Report Delete

Quoted By: >>51021567 >>51021601

>>51021489
So let's say I want to make an array of doubles and the input has 30 double values.
In C, can I just keep growing the array through malloc as I need it, or is that not possible?

Anonymous

Anonymous Mon 26 Oct 2015 13:27:43 No.51021545 Report Delete

Quoted By: >>51021570

Just finished an assignment which takes a real number and prints it back in words. For example 123.13 is one-two-three-point-one-three.

Anonymous

Anonymous Mon 26 Oct 2015 13:29:27 No.51021567 Report Delete

Quoted By:

>>51021535
Use malloc for the first allocation and then use realloc on it to grow it, realloc automatically copies your elements to the new array and frees the old one.

Anonymous

Anonymous Mon 26 Oct 2015 13:29:40 No.51021570 Report Delete

Quoted By: >>51021611

>>51021545
Come back when you can make it read the number in english.

Anonymous

Anonymous Mon 26 Oct 2015 13:30:08 No.51021579 Report Delete

Quoted By:

>>51018118
Fuck off, Molyneux. Black & White 2 was a shitshow of a sequel.

Anonymous

Anonymous Mon 26 Oct 2015 13:30:49 No.51021586 Report Delete

Quoted By: >>51021626

hey would someone mind maybe helping me?
here's a program I want to make (java)

solubility rules say like

if K+ = your anion
soluble
else if [whatever] = anion
soluble
else if [P+] = anion
insoluble
else
etc etc for like 30 different rules. I know I can set it as a boolean for the solubility, but is there a more efficient way than a billion if/else if statements? there must be, right?

Anonymous

Anonymous Mon 26 Oct 2015 13:31:45 No.51021601 Report Delete

Quoted By:

>>51021535
Malloc will allocate a contiguous chunk. You can't just grow an existing array with malloc. You either need realloc or malloc/copy/free (which is probably what realloc does internally).

Anonymous

Anonymous Mon 26 Oct 2015 13:32:26 No.51021611 Report Delete

Quoted By: >>51022189

>>51021570
What do you mean?

Anonymous

Anonymous Mon 26 Oct 2015 13:33:06 No.51021619 Report Delete

Quoted By: >>51021687

>>51020327
Don't use system("pause").

Just print to screen "Please press enter to exit."
And then scan the keyboard for some value.
When they put something + enter, the program finishes, until then, it's "paused".

Anonymous

Anonymous Mon 26 Oct 2015 13:33:25 No.51021626 Report Delete

Quoted By: >>51021644 >>51021693

>>51021586
You could make a list with all the soluble things and check if the list contains the input.
Suddenly two lines of code.

Anonymous

Anonymous Mon 26 Oct 2015 13:34:53 No.51021644 Report Delete

Quoted By: >>51021665

>>51021626
>two lines of code
nice bloat faggot

Anonymous

Anonymous Mon 26 Oct 2015 13:36:17 No.51021665 Report Delete

Quoted By:

>>51021644
I guess you could also do it in one line if you don't have a purpose for that list afterwards

Anonymous

Anonymous Mon 26 Oct 2015 13:38:05 No.51021687 Report Delete

Quoted By: >>51021831 >>51022213

>>51021619
My codeblocks scripts automatically pause at the end, does that mean that they automatically import some library to make use of the PAUSE function?

Anonymous

Anonymous Mon 26 Oct 2015 13:38:21 No.51021693 Report Delete

Quoted By: >>51021751

>>51021626
solves the last half (insoluble/soluble), but it has to be in comparison to other variables too.
I think the solution is set it equal to a value (P+ could be like 6th on this list, so x = 6) then take the lowest value as your first soluble anion/cation
suppose you could do that with an array though too, just checking the list assigns it a value 1-30 if it's on there

Anonymous

Anonymous Mon 26 Oct 2015 13:41:54 No.51021751 Report Delete

Quoted By: >>51021854

>>51021693
I don't understand what you're trying to do there.

Anonymous

Anonymous Mon 26 Oct 2015 13:47:47 No.51021824 Report Delete

Quoted By: >>51023426

Well, so far I hate Ada.
You have to write boilerplate code to output an integer to the command line. And the "in out" parameter mode passes by value, but then copies the value of the parameter back to the variable upon function exit. I mean, what's the point of that?

Anonymous

Anonymous Mon 26 Oct 2015 13:48:10 No.51021831 Report Delete

Quoted By:

>>51021687
How would I know...

You don't use system("pause") because that is a call to the Pause command of the windows OS. Which is bad programing.

Alos this "pause" command can be replaced with malitious code.... acording to my C book.

Anonymous

Anonymous Mon 26 Oct 2015 13:49:20 No.51021846 Report Delete

Quoted By: >>51021943

What are the best pet projects for learning C?

Anonymous

Anonymous Mon 26 Oct 2015 13:49:48 No.51021854 Report Delete

Quoted By:

>>51021751
ok i'll explain fully as I can

we have 4 parts of an equation

potassium floride and hydrogen chloride

ions:
(K+ F-) (H+ Cl-)

K+ is 1st on list = soluble
F- is third = insoluble
H+ is not on list = dependant on the other ones, but irrelevant here
Cl- is 10th on the list = soluble

lowest position (closest to zero) is the deciding factor, she gets to decide who she bonds with and she has to bond with the cation (Cl-)

here's our list
(K+, whatever, F-, sdfd etc etc)
K+ = 1, whatever = 2, F-=3, etc.
(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
then we can do some boolean comparisons to see which is lowest

insoluble positions: (3,5,6,7,8) (so I'd replace with F-, etc probably)

I know it's a poor explaination but basically the program is ultimately supposed to accept potassium floride and hydrogen cloride as an input, use some string.Equals() statements, do all of our comparisons, and say our output is K+ and Cl-, or pottasium chloride based on the solubility rules

Anonymous

Anonymous Mon 26 Oct 2015 13:54:38 No.51021928 Report Delete

Quoted By:

>>51021357
Textwrap can handle stuff like this. Look at the dedent() method.
https://docs.python.org/3.5/library/textwrap.html

Anonymous

Anonymous Mon 26 Oct 2015 13:55:40 No.51021943 Report Delete

Quoted By:

>>51021846
A clock

Anonymous

Anonymous Mon 26 Oct 2015 14:02:07 No.51022047 Report Delete

Quoted By: >>51022075

Did we ever figure out what a ``FROB'' is?

Anonymous

Anonymous Mon 26 Oct 2015 14:02:56 No.51022057 Report Delete

Quoted By: >>51022069 >>51022147

this works correctly


SQL> SELECT E.Ssn, E.Lname, SUM(W.Hours)
 2 FROM Employee E, Works_on W
 3 WHERE E.Ssn = W.Essn
 4 GROUP BY E.Ssn, E.Lname
 5 HAVING SUM(W.Hours) < 40
 6 ORDER BY E.Lname;

but one of my Works_on Hours values is null. i'm suppose to treat this as 0 but i cant figure out a smooth way to do it without adding multiple lines

Anonymous

Anonymous Mon 26 Oct 2015 14:04:16 No.51022069 Report Delete

Quoted By:

>>51022057
SQL is disgusting

Anonymous

Anonymous Mon 26 Oct 2015 14:04:30 No.51022075 Report Delete

Quoted By: >>51022083 >>51022092

>>51022047
I'm sorry, but I still have no clue what a【FROB】is

Anonymous

Anonymous Mon 26 Oct 2015 14:05:18 No.51022083 Report Delete

Quoted By: >>51022108

>>51022075
Well, does anybody else here know what a {{FROB}} is or how I can use one?

Anonymous

Anonymous Mon 26 Oct 2015 14:06:03 No.51022092 Report Delete

Quoted By: >>51022114

>>51022075
We found out what frob was, but not why it was frob

Anonymous

Anonymous Mon 26 Oct 2015 14:06:59 No.51022108 Report Delete

Quoted By:

>>51022083
It"s ``FROB``

Anonymous

Anonymous Mon 26 Oct 2015 14:07:11 No.51022114 Report Delete

Quoted By: >>51022185

>>51022092
So why is a $FROB$ a $FROB$, anon?

Anonymous

Anonymous Mon 26 Oct 2015 14:09:11 No.51022139 Report Delete

Quoted By:

reminder: anime goes to >>>/a/ (unless deemed acceptable) , traps go to >>>/lgbt/

Anonymous

Anonymous Mon 26 Oct 2015 14:09:40 No.51022147 Report Delete

Quoted By:

>>51022057
You just aren't frobbing correctly.

Anonymous

View Same Google ImgOps iqdb SauceNAO 1437663010095.jpg, 93KiB, 679x453

Anonymous Mon 26 Oct 2015 14:11:16 No.51022175 Report Delete

Quoted By: >>51022200 >>51022216

in Java is there an actual difference in performance when reusing a pointer?

private Object foo;
public void doStuff(){
foo =...
}

public void doStfuff(){
Object foo = ...
}

Anonymous

Anonymous Mon 26 Oct 2015 14:12:05 No.51022185 Report Delete

Quoted By:

>>51022114
Nobody knows, but there must be a very good reason

Anonymous

Anonymous Mon 26 Oct 2015 14:12:26 No.51022189 Report Delete

Quoted By:

>>51021611
Accept "one hundred twenty-three and five tenths" and output 123.5.

Anonymous

Anonymous Mon 26 Oct 2015 14:13:27 No.51022200 Report Delete

Quoted By: >>51022223

>>51022175
Not one you should ever care about.

Anonymous

Anonymous Mon 26 Oct 2015 14:14:05 No.51022213 Report Delete

Quoted By:

>>51021687
Some IDEs will automatically pause at the end of a console output to allow the programmer to see what's going on without resorting to bad/undefined code such as system().

Anonymous

Anonymous Mon 26 Oct 2015 14:14:34 No.51022216 Report Delete

Quoted By:

>>51022175
Sounds like a great idea for confusing other programmers.

Anonymous

Anonymous Mon 26 Oct 2015 14:14:54 No.51022223 Report Delete

Quoted By: >>51022244

>>51022200
that's not really an answer. and besides, I like to optimize my stuff and even if it's the smallest amount.

!ewqxZPsMLk

!ewqxZPsMLk Mon 26 Oct 2015 14:15:31 No.51022231 Report Delete

Quoted By:

==NEW THREAD==

>>51022225
>>51022225
>>51022225

==NEW THREAD

Anonymous

Anonymous Mon 26 Oct 2015 14:16:06 No.51022244 Report Delete

Quoted By: >>51022270

>>51022223
Maybe you should focus on optimizing the parts that will actually make a difference instead of an "optimization" that relies on the compiler not being great and saves you 8 bytes of memory

Anonymous

View Same Google ImgOps iqdb SauceNAO 1326427856680.png, 3KiB, 128x128

Anonymous Mon 26 Oct 2015 14:18:36 No.51022270 Report Delete

Quoted By:

>>51022244
maybe I do both.

Anonymous

Anonymous Mon 26 Oct 2015 14:18:49 No.51022274 Report Delete

Quoted By: >>51022426

>>51017360
Ada is all about strong typing, you won't grasp Ada beyond a superficial level until you understand how everything in Ada is based on its type system.

The only good free book on Ada IMO is Ada Distilled. After that you're going to have to spend $100 for the latest John Barnes book

Anonymous

Anonymous Mon 26 Oct 2015 14:32:03 No.51022426 Report Delete

Quoted By:

>>51022274
Well, it's the lack of learning material that's bothering me most about it.
Object Pascal seems to be a lot better in that regard, but what I don't get is why the FreePascal compiler is ten times slower than GNAT 2005 on benchmarksgame.

Anonymous

Anonymous Mon 26 Oct 2015 14:43:33 No.51022572 Report Delete

Quoted By:

Is there a better way to convert a hex value to an integer?

int toDecimal(char c)
{
 if (isupper(c))
 tolower(c);
 switch (c)
 {
 case 'a': return 10; break;
 case 'b': return 11; break;
 case 'c': return 12; break;
 case 'd': return 13; break;
 case 'e': return 14; break;
 case 'f': return 15; break;
 default : break;
 }
 /*return c - 67;*/
}

Anonymous

Anonymous Mon 26 Oct 2015 15:03:40 No.51022855 Report Delete

Quoted By:

>>51019106
Maybe jQuery is the problem? Try naming the jQuery object something other than $. Alias it to $ inside a closure if you want:

(function(){
 var $ = jQuery;
 ...
})();

Anonymous

Anonymous Mon 26 Oct 2015 15:08:39 No.51022931 Report Delete

Quoted By:

I have a 2 bits per pixel image (gameboy)
What SSE operation would I use if I wanted to "unpack" an integer (with the 2bpp values) within the register?

as in I want to get:
P = an 8-bit integer storing 4 pixels(2bpp each pixel)
b = an 8-bit value storing a single pixel(using only 2 bits)

SSE register:
000000000000000P
I want
000b000b000b000b

One way I can think of doing this is by just
loading the byte into all four values and then shifting each integer a different amount of bits to get the 2 bits I want.

Anonymous

Anonymous Mon 26 Oct 2015 15:38:56 No.51023426 Report Delete

Quoted By:

>>51021824
Only as much boilerplate as to write text. Ada.Text_IO is designed to be specialized for different types so you don't have to convert to String first with 'Image, and the standard library includes one such specialization as Ada.Text_IO.Integer_IO. If you use that package you can Put(Integer) and Get(Integer).

The behaviour of in out parameters are determined by the compiler. It will use pass-by-reference when it can.

Anonymous

Anonymous Mon 26 Oct 2015 15:48:47 No.51023572 Report Delete

Quoted By:

Not sure where this question belongs so i figured you can help.

When using entity framework, should i have one model for the entire database or several smaller ones split by how/where theyre used?

Anonymous

Anonymous Mon 26 Oct 2015 15:50:02 No.51023585 Report Delete

Quoted By:

Get their ASCII table values and subtract if greater than 9.
You can also implement a struct which spits out a char or an int using operator overloading.

Anonymous

Anonymous Mon 26 Oct 2015 15:59:45 No.51023745 Report Delete

Quoted By:

I'm trying to build on linux with netbeans and I have this error:

clean ...

CLEAN SUCCESSFUL (total time: 106ms)
kitten.bin
vshader.pica
make[1]: picasso: Command not found
/home/dexter/textured_cube/Makefile:169: recipe for target 'vshader.shbin.o' failed
make[1]: *** [vshader.shbin.o] Error 127
Makefile:132: recipe for target 'build' failed
make: *** [build] Error 2

BUILD FAILED (exit value 2, total time: 174ms)

Anonymous

Anonymous Mon 26 Oct 2015 16:01:02 No.51023767 Report Delete

Quoted By:

So I'd like to translate LLVM IL to my VM's assembler language, in addition to lexing and parsing the IL, is there anything else that i'd need to do? are there arguments that i will need to pass for clang?
Is there some guide for compiling LLVM IL to other architectures somewhere?

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