The Nineteenth Byte

First of all, using GMail means that Google can read your email. That might not matter for you and me, but classified information is a whole other subject. Second, lost account mechanisms are usually vulnerable to social engineering. Finally, configuring a spam filter that works for a handful of people is easier than configuring one that works for the whole world.

@Downgoat Well, I can't argue with hooves.

New Sandboxed Posts

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A: Sandbox for Proposed Challenges

Double Quine code-golf quine You are to make a program that will output its source code twice in a row with no delimiter. The only catch is that the output must also do the same thing and so on. For example, this problem is easily solved in HQ9+ with the following program: QQ QQ will output QQ...

Pavel

I could have sworn that ^ was already a thing

Riker

12:26 AM

me right now

Pavel

Seriously considering buying some illegal drugs to try to turn them back into cold medicine.

Downgoat

@Riker wait what you have crystal meth laying around? O_o

Riker

can't be that hard to find in LA

Downgoat

true

Mendeleev

1:36 AM

I was just outside bringing in groceries

It was pouring heavy rain

Then as soon as I brought everything in, the rain stopped. FML

Riker

@betseg feedback on my edits to your chopsticks challenge?

I did add "your bot will always be the second player", which changes the challenge a tiny bit

Anonymous

@Riker I too read that AskReddit thread

Riker

lol

Mendeleev

1:55 AM

TIL jelly.org

Riker

^

Pavel

2:16 AM

@Mendeleev I was expecting a website Dennis made to advertise Jelly :P

Mendeleev

@Pavel heh

Pavel

2:32 AM

I just reinstalled Windows. This time I made sure to write down all of the software I need to reinstall!

I have like 30~ installers running rn

Destructible Lemon

does anyone else here play binding of isaac?

Downgoat

@Pavel Solution: reinstall windows with mac, that way when you reinstall OS you still get to keep data

Pavel

@Downgoat No, I wanted to nuke everything. My computer kept crashing so hopefully getting rid of bloat will help.

Also, I don't think I can run Mac on my build, without setting up a Hackintosh.

Downgoat

@Pavel would strongly recommend installing Linux or Hackinoshing

Pavel

Oh, I'm dual-booting Fedora. This is also my gaming computer.

(Though I did temporarily uninstall Fedora)

I'll reinstall it soonish.

Pavel

3:01 AM

Installing every component of VS2017 was probably a bad idea, in hindsight.

Riker

3:26 AM

@flawr @Pavel maps without newzealand

Mendeleev

@DestructibleLemon LMMS

Destructible Lemon

?

is that a question?

Mendeleev

look it up

@Downgoat Hackintoshes are cool. I set one up on my laptop once.

This just happened near my school

Mendeleev

3:50 AM

@DestructibleLemon LMMS is basically FOSS FL

Dennis

Didn't know Florida was closed source.

Mendeleev

@Dennis FL Studio :)

Dennis

Ah...

PhiNotPi

4:06 AM

This is off topic, but has anyone here ever heard of a university named Unicamp (located in Brazil)? Someone I sorta know is apparently going there and I'm interested in how it stacks up to other universities.

user165474

Does anyone know how to find a codepage or repo for Brain-Flueue?

Pavel

@HyperNeutrino It's just the brain-flak repo, it hosts 4 BF-variants now.

IDK why you need a codepage, it's 8 symbols.

CartManager XD

o/

I heard Brain-Flak

Pavel

@Riker But... why?

@Riker i.reddituploads.com/…

Conor O'Brien

4:31 AM

@CartManagerXD do I know you?

CartManager XD

I was wheat wizard

Mendeleev

Question for everyone here

What do you think after hearing this: soundcloud.com/dmitry-kudriavtsev/attempt3

Pavel

@CartManagerXD noooooooo

Change back

WheatWizard was better

Mendeleev

Esp. @DestructibleLemon

Pavel

@Mendeleev You gave an Alpha version numbering?

nice

Mendeleev

4:34 AM

@Pavel Huh?

Pavel

Attempt3 Alpha 1

Mendeleev

I may upload multiple versions, will delete the first version if I start running low on upload time

Pavel

I'm not sure what it's trying to be btw

Mendeleev

No idea either

Pavel

It's just not intresting, nothing is happening.

Mendeleev

4:35 AM

I just downloaded a set of instrument presets so I've been experimenting with them

@Pavel It's a buildup to something I guess

No idea to what

Pavel

Well, whatever it's building up to, I'll exit out before it finishes.

Mendeleev

What if I add some underlying thing that gets more intense until something happens?

Pavel

That might help, but the only excuse for having a 40 second slow crescendo is if you have a several-hour-long orchestral piece.

Mendeleev

Unrelatedly, I've been getting some music inspiration from this (disregard the stupid video)

Qwerp-Derp

5:22 AM

I need help with C++, it's too confusing

Pavel

Have you tried C# instead?

Anonymous

@Qwerp-Derp What seems to be the issue?

Qwerp-Derp

I want to make an array class thing in C++, which can take variable arguments, and I'm trying to wrap my head around that

Anonymous

Variable and homogenous arguments, or variable and heterogenous arguments?

Pavel

C/++ arrays are hard.

Qwerp-Derp

5:28 AM

#include <iostream>

class IntArray {
    public:
        IntArray(int item) {
            this->items = {item};
        }

    protected:
        int items[];
};

int main(void) {
    IntArray x = new IntArray(1);
    return 0;
}

Why does this error?

Pavel

It has to be int*, not int

Qwerp-Derp

@Mego Are you intentionally trying to trip me up

Pavel

I think

Anonymous

@Qwerp-Derp No, it's a legitimate question. Are the things going to be all the same type or not?

Qwerp-Derp

@Mego Currently yeah

Pavel

5:29 AM

Also, you should probably have a variable that holds the array's length.

Qwerp-Derp

I might try different types if I can wrap my head around this first

Pavel

Since it's impossible to programmatically determine.

Anonymous

@Qwerp-Derp Probably because that's not how you do initializer lists

Qwerp-Derp

@Mego How do you do it

I came over from Java, C++ seems similar but different

Kinda like New Zealand for me

Anonymous

If you're going to initialize an array with an initializer list, it needs to be done in a member initialization list, not in a constructor body

Qwerp-Derp

5:31 AM

???

Pavel

An int array is a pointer to an int, int*

Anonymous

@Qwerp-Derp There's two ways of doing constructors. There's the way you did it, where stuff is initialized in the constructor body. But there's also a thing called a member initialization list, which is usually better in every way

Destructible Lemon

@Mendeleev I already use it. in fact there is like a ~1% chance you found out about it from me

Pavel

@Qwerp-Derp int* items[42]

Anonymous

So where you'd do something like foo(x){this->bar=x;}, you'd instead do foo(x):bar(x){}

Anonymous

5:33 AM

You also need to provide a maximum size for the list

Destructible Lemon

the other ~99% is that you got it from wikipedia, or someone else told you

Anonymous

@Pavel That's wrong

Anonymous

That's an array of 42 int pointers

Pavel

Wait

Right

They're ints

Qwerp-Derp

@Mego How do you do it in my example?

Pavel

5:34 AM

The point is, you need to specify the array's size beforehand.

int items[42]

Destructible Lemon

@Mendeleev also yo

Anonymous

@Qwerp-Derp Like this

Anonymous

You can get away without specifying the array's size but that requires dynamic memory allocation

Destructible Lemon

I think that if you took that music you posted just before, but made it so that it doesn't just raise in pitch, but kind of goes down a step a bit every now and then, it would make some nice ambient music

like the first 8 seconds kind of make me think of portals music, like self esteem fund, but actually positive

could you give me the the mmpz of that one pls @mendeleev

Pavel

Microsoft is trying to push C#/Java-like arrays and imports into C++

Mendeleev

5:37 AM

@DestructibleLemon define mmpz

Destructible Lemon

the filetype lmms uses

Mendeleev

I made that one in FL Studio with Sytrus so that would be kinda hard

Destructible Lemon

oh

:P

you were talking about lmms before

so I assumed

Mendeleev

yeah FL is much, much better

Qwerp-Derp

@Mego Let's say I have something like this now:

Mendeleev

5:40 AM

I'm not selling my music for one specific reason, that would get me kicked and has to do with the word "arr"

Qwerp-Derp

template <typename... Args>
IntArray(int first, Args... args) {
    this->items = {first};
    init_args(args...);
}

How would I do this properly?

Anonymous

One second, typing

feersum

Unlike most languages we're used to, in C++ it is not a very successful strategy to try random stuff until it appears to work.

You will probably get something that works sometimes, but crashes under the right conditions.

Anonymous

@Qwerp-Derp This would be the idiomatic way

Qwerp-Derp

OK now I am kinda discouraged from C++

feersum

5:48 AM

lol @ the protected making the array unusable...

Anonymous

Since presumably you'd want to know the size also

Anonymous

@feersum Accessor and mutator methods are left as an exercise for the reader

Qwerp-Derp

5:59 AM

Why does this not work?

#include <iostream>

class IntArray {
    public:
        IntArray(void) {
            this->length = 0;
        }

        void add(int item) {
            int temp[this->length];

            for (int a = 0; a < this->length; a++) {
                temp[a] = this->items[a];
            }

            temp[this->length] = item;
            this->items = temp;
            this->length += 1;
        }

        int get(int n) {
            if (n < 0 || n > this->length)
                std::cout << "Out of bounds";

Anonymous

@Qwerp-Derp For starters, you're trying to assign past the end of temp. Remember, array indices are from 0 to length-1, inclusive. Also, you can't just assign an array to an array with a different length.

Qwerp-Derp

@Mego Dammit I forgot how different C++ was from Java... :P

feersum

A 0-length array is not going to do you much good.

Anonymous

You'd have to either use dynamic memory and realloc, or use a std::vector

Anonymous

The second one is the much better option

Anonymous

6:03 AM

But std::vector does exactly what you're trying to do, so it wouldn't be much of a learning experience

Qwerp-Derp

@Mego How would you go about making this

Anonymous

@Qwerp-Derp Making what? Something using std::vector? You'd just use std::vector directly.

Qwerp-Derp

Making the array thing itself in vanilla cpp

Without std::vector

Anonymous

You'd have to manually juggle the dynamic memory allocation

Anonymous

Actually I misspoke earlier - realloc wouldn't be strictly necessary

Qwerp-Derp

6:14 AM

I have a feeling that this is much easier to achieve in Java

Anonymous

Probably

Anonymous

You'd need to do something like this

Pavel

6:44 AM

I wonder why it's called a vector. I was taught a vector is just a tuple, generally representing a point.

DJMcMayhem

→ 4 messages moved to Pxls Space

@Mendeleev There's nothing wrong with occasionally asking for help, but seriously, that's the 3rd time this hour. That's excessive. Please try to do that less in the future

Anonymous

@Pavel A vector in mathematics is a thing with magnitude and direction. A vector in C++ is an automatically dynamically resizing homogenous list.

Pavel

Right, the two concepts seem entirely unrelated

Someone was writing a class for a resizable array, and thinks: What do I call it? I know, vector!

Anonymous

@Pavel His name was Victor

Pavel

> It's called a vector because Alex Stepanov, the designer of the Standard Template Library, was looking for a name to distinguish it from built-in arrays. He admits now that he made a mistake, because mathematics already uses the term 'vector' for a fixed-length sequence of numbers. Now C++0X will compound this mistake by introducing a class 'array' that will behave similar to a mathematical vector.
Alex's lesson: be very careful every time you name something.

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