The Nineteenth Byte

Ginger

19:00

it looks like there's no way to selectively change fields; I'd have to parse out and resend all of it, including things like location and GitHub profile

Seggan

anyway, time to do more work on lightchat

Ginger

hmm, but the script that does it must be getting the data from somewhere...

Bbrk24

@Ginger oh fun

Ginger

blech, the script literally extracts the default values from all of the form elements and submits them

:/

Bbrk24

I presume they didn’t bother to write a PATCH endpoint

Ginger

19:08

I doubt it

Bbrk24

I mean, what would be the point

Ginger

}).fail(function(d) {
    showError({ 'General': [] }); // just show the red text
})

very good programmers at SE

Bbrk24

uh

Ginger

conclusion: it's possible, but quite a bit of effort

if you do it, more power to you (and I'll happily answer any questions you may have about the intricacies of the login system)

Simd

Is there a python module that would just do this for you? codegolf.stackexchange.com/questions/260918/…

mousetail

19:13

Probably not, it's too specific

Bbrk24

@Ginger if you’re willing to answer questions about the login system, could you tell me what I did wrong in the code snippet I shared in the chat clients room?

Ginger

oh sure lol

sorry, I forgor 💀

Simd

@mousetail phew :)

I look forward to the Mathematica built-in :)

@mousetail if there was a built-in that gave you prefix sums at fixed intervals that would do it. Maybe there is something that does that

A variant of percentile

Seggan

fun

Arc<Mutex<Vec<Box<dyn FnMut(ChatEventType) -> Pin<Box<dyn Future<Output=()> + Send + 'static>> + Send>>>>

Ginger

ಠ_ಠ

Bbrk24

19:39

If Swift can figure out some generic type args but not others, you can replace the ones it can figure out with _, so instead of var x: Either<Int, Some<Deeply<Nested<Type>>>> = .right(...), you can say var x: Either<Int, _> = .right(...)

Seggan

problem is thats in a struct type definition

i just aliased it

Bbrk24

ah. I see

Does Rust do the thing where typealias Void = () // empty tuple?

Seggan

type EventHandlers = Arc<Mutex<Vec<Box<dyn FnMut(ChatEventType) -> Pin<Box<dyn Future<Output=()> + Send + 'static>> + Send>>>>;

@Bbrk24 yeah

all non returning functions return ()

by non returning i mean void

Bbrk24

Also, what is + here?

@Seggan As opposed to returning, I think Kotlin calls it Nothing? Swift calls it Never, and defines it as enum Never {}

Seggan

yeah its Nothing

Rust calls it !

Bbrk24

19:42

equivalent to C++ [[noreturn]] void

I like Never as a name for it because of how it makes some sentences sound, e.g. "fatalError returns Never"

Seggan

yeah

Bbrk24

It can be used to wholesale eliminate types from a tagged union type enum, like Result<T, Never> is equivalent to T (as opposed to Result<T, Void> which is equivalent to T?)

Never implements a lot of common protocols for this reason

like

extension Never: Comparable {
    static func < (lhs: Never, rhs: Never) -> Bool {
        switch (lhs, rhs) {}
    }
}

is part of the standard library

Rydwolf Programs

@Bbrk24 Wait I thought y'all fixed it

It's still not working?

Bbrk24

I thought so too

Rydwolf Programs

@Bbrk24 I was thinking about that, but does curl have cookie support?

Bbrk24

19:47

but apparently not. I can only get it to work if I yoink the cookies from the browser

Rydwolf Programs

Lemme do some testing rq

I could've sworn the set-cookie-on-redirect thing was something it does, and if so, that could be the issue

Bbrk24

@RydwolfPrograms To make the hard upper limit of 128MB video memory even stranger: I have 2.1GB of cache

Ginger

@Bbrk24 Rabbit's going to have dedicated singleton nothing and never types

Bbrk24

What's the difference?

Rydwolf Programs

Presumably never's for things that never return a value, like panics or infinite loops

Ginger

19:56

nothing is Rabbit's version of Kotlin's Unit, never is Rabbit's version of Rust's !

^^

(although we call them "aborts" thank you very much :b)

also: @RydwolfPrograms I know you aren't going to like this but... I really like Kotlin's handling of nullable types

like, more than Rust's

Bbrk24

There's also func yeet(_ e: Error) throws -> Never { throw e }

Ginger

so I'm considering using it over Optional or whatever Rust calls it

Bbrk24

Optional is Swift's name for it, in Rust it's just Option

Ginger

ah, right

also me when explicit throw declarations

Rabbit's going to do Rust-style Results

Rydwolf Programs

Ewwwww

Those're so problematic

Ginger

19:59

whar ?

Rydwolf Programs

Rust has terrible error handling, it's its weakest aspect

Ginger

weren't you espousing the greatness of Results?

okaaaay, what do you think I should do then?

Rydwolf Programs

Over try/catch/throw yes

The thing where there's a global error type registry and there's something akin to Result but with only one generic

Ginger

oh right that

Seggan

@Ginger Rol has Void and Never

Ginger

20:02

I like nothing and never because they're alliterative and it pleases me

~~lizard brain moment~~

Rydwolf Programs

Alliteration is bad in programming language design

You want things to sound distinct, not make them easy to confuse

Ginger

silence, boring person

I'm doing nothing and never and you cannot change my mind

Seggan

@RydwolfPrograms PLDI question right there!

Ginger

noooooo

all that'll do is start arguments

Seggan

PLDI will be Argument Central

Rydwolf Programs

20:09

@Bbrk24 I have an idea

Ginger

we don't need another math.se!

Rydwolf Programs

Try replacing the URLs your bot makes requests to during its login flow with a server you control, one at a time, and logging all of the headers and request data

Then I can do the same with NPSP

Bbrk24

That's what I JUST DID (see the chat clients room)

Rydwolf Programs

Oh cool

Ginger

~~bold of you to assume xe controls a server~~

Bbrk24

20:10

well I used webhook.site but same idea

Rydwolf Programs

Great minds think alike I guess

Bbrk24

@Ginger I do, it's called localhost

Ginger

me when backhanded compliment

@Bbrk24 oh cool, my server's named the same thing!

what're the odds

Rydwolf Programs

@RydwolfPrograms (which is a really fun expression because it lets you call yourself a great mind without sounding arrogant :p)

mousetail

SE Chat Clients

A room for discussion and development of SE chat clients

Bbrk24

20:11

@RydwolfPrograms The best response to it is "but fools rarely differ"

Rydwolf Programs

@Ginger My server has a little display on the front which shows a line of information, and I told it to show the server's hostname. It just displays localhost now. Like, technically correct...thanks...

Ginger

lmao

"what's your IP address?" "127.0.0.1"

Rydwolf Programs

Don't make fun of me but I did that once

Bbrk24

Oh really? Well mine's 0.0.0.0

Ginger

@RydwolfPrograms lmao

Rydwolf Programs

20:12

In 6th grade trying to get my friend to join my minecraft server

mousetail

@Bbrk24 That might be the saying but there are a lot more ways to be wrong than right. That being said great minds can be very wrong too

Ginger

please tell me it was in response to some masterhacker asking you for it

aw darn

mousetail

Ha, I found your IP. Going to DDOS 127.0.2.232 now. You'll never get access the internet again

Ginger

I love r/masterhacker because it's one of the easiest ways for me to feel smugly superior

> You'll get access the internet again

reverse threat

mousetail

maybe if you DDOS their rogue DNS server that's censoring certain sites

Also btw fun fact the entire 127.0.x.x block is localhost. You can use that to run multiple servers on your computer and give them unique domain names in your host file

user

20:19

@RydwolfPrograms I know this isn't the way you meant it, but now I have an image of an assassin hired by Code Review going around the globe taking out CGCC members and I am very scared

2

Ginger

CGCC will die

SE Nitro 2: Nitro Harder

Seggan

@user aka anti-Ginger?

user

???

Is Ginger going around killing Code Review members?

Ginger

SHHHHHHHH

SEGGAN

Bbrk24

Seggan

20:24

(removed)

mousetail

(removed)

I guess the code review hit squad found this chat

Simd

I can’t really judge an excel answer

does anyone understand =TOCOL(AVERAGEIF(A:A,"<"&SEQUENCE(1+MAX(A:A))),2). ?

mousetail

20:39

I don't think it's valid, both AVERAGEIF and SEQUENCE should be O(n) if I understand correctly support.microsoft.com/en-us/office/… You should be able to easily look it up the the excel docs though

Simd

Ok so it’s recomputing from scratch for each output?

I just need it translated into loops :)

caird coinheringaahin g

@RydwolfPrograms Put it this way: I've seen the site be substantially more, and substantially less active than it is now, and I've seen the userbase change over the 6 years I've been here. I doubt CGCC is "dying" any time soon, unless SE does something to kill us

I am so glad you can edit in replies in chat

user

@cairdcoinheringaahing Like a globetrotting assassin tracking us down by exploiting the IP address vulnerability in chat? :o

caird coinheringaahin g

Nah, I tried doing that to Code Review 3 years back, didn't work

Bbrk24

what IP vulnerability?

Rydwolf Programs

20:53

You can steal someone's IP pretty easily since you can upload images from any source

You just need to watch for users joining and associate that with when the request rolls in

Same with main but it's harder to tell who's IP it is

SE's known about it for years but refuses to fix it

We believe it's also possible to use that to get the announcer badge but nobody's been brave enough to test it

caird coinheringaahin g

17

A: Allowing images from external sources opens doors to serious security exploits and privacy risks

What is possible with this vulnerability? Oh, it's way worse than tracking. Determining the IP addresses of specific chat users or (with less accuracy) highly active users on main This involves finding mutliple rooms the user is in, scraping the IPs of the users in them, and finding the interse...

Bbrk24

@RydwolfPrograms How?

Rydwolf Programs

By putting a userid-containing link to a post in the image's source

Bbrk24

How does the Announcer badge work that permits that?

Rydwolf Programs

I'd assume it just tracks when a request is made to that link right

Bbrk24

21:05

no what is the criteria for the badge even? I've never heard of it

Rydwolf Programs

Oh it's for getting 25 people to click on a link you shared to a post

Bbrk24

ah

Rydwolf Programs

When you get a post link via the share button it includes your user id for that reason

Well I tried to get a fun project I made using the self-hosted images "feature" back online and was greeted with this

So I guess no clockimg.png

Bbrk24

Stupid question: Would a JS answer like require('is-even') be acceptable?

caird coinheringaahin g

21:24

Why wouldn't it be?

Rydwolf Programs

It would be allowed but it'd be "JavaScript (Node.js) + is-even" as the language

Bbrk24

@cairdcoinheringaahing You're not writing any code, just pointing out that a ridiculously simple library exists

iirc is-even requires is-odd and then inverts the result

caird coinheringaahin g

You'd still need to include the name of the function you're using. For example, in a challenge to calculate sin of the input, Python can do the following:

import math
math.sin

but not

Rydwolf Programs

@Bbrk24 It's no different from using a built-in

caird coinheringaahin g

import math

Rydwolf Programs

21:27

@cairdcoinheringaahing require("is-even") is an expression that evaluates to the is-even function

Bbrk24

^

caird coinheringaahin g

Ugh, damn JS

ATaco

22:14

One can do require("is-even")(7), so I don't see why not

Or even, for library functions, require("some-math-lib-with-an-ace").calculate

hyper-neutrino

well you could do __import__("math").sin in python too it's just basically never shorter

it's the same length as import longmodulename as m;m.field for longer module names

Neil

23:10

CMP: How do you pronounce 0b10 as in const unsigned TWO = 0b10;?

Jo King

i pronounce the last 0 as "kenobi"

ATaco

I read it as "Zero, Bee, Ten" which might not be accurate, but it's how I read it.

Bbrk24

Since my SE chat client is utterly broken, what other thing should I try to make in Swift?

caird coinheringaahin g

@Neil "one-zero"

Bbrk24

23:26

Or actually rather than doing anything in Swift, maybe I should fix a known bug in Trilangle. I may need help with it because I don't even know how to approach the problem

Neil

@cairdcoinheringaahing so you don't pronounce the 0b at all?

caird coinheringaahin g

No. Unless I'm clarifying, I say "ten" for decimal, and "one-zero" for binary

Bbrk24

...would anyone know why gcc is giving me 50kB of "undefined reference" errors?

And it's all super basic stuff like

<artificial>:(.text+0xf08): undefined reference to `operator new(unsigned long)'
<artificial>:(.text+0xfc4): undefined reference to `operator delete(void*)'

clang is giving me a cryptic linker error saying LLVMgold.so doesn't exist

ATaco

23:42

@Bbrk24 Looks like a linking error, I suspect to whatever should provide standard lib.

C(++) linking errors are the worst part of the language family IMO.

Bbrk24

...

I used gcc instead of g++

are you serious, that was it?

clang works for both, why can't gcc

ATaco

GCC has different cli args iirc.

And G++ assumes a bunch of libs if required?

@mousetail TODO: Add ඞ to a SBCS for a golf lang.

Bbrk24

The invocation was g++ ./*.cpp -Wall -Wextra -fno-rtti -fno-exceptions -O3 -flto -DNDEBUG -o Release/trilangle

gcc didn't complain about any of those flags, just the linker errors

> g++: error: unrecognized command line option ‘--std=c++20’; did you mean ‘--std=c++03’?

uh

right, good thing I wrote this compatible with C++14

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