The Nineteenth Byte

7:20 PM

an?

I like how the original five streams gradually merge into two

Q: Brief outage planned for Wed, May 3, 2017 at 8pm US/Eastern (00:00 UTC) (like a fire drill for computers)

I like how the original five hundred streams gradually merge into two

opensource.google.com/projects/vim-plugins Google's Vim plugins

PSA:

122

MicroVersion: Planned service degradation: All Stack Overflow/Stack Exchange sites read-only for 20 minutes on Wed, May 3, 2017 shortly after 8PM US/Eastern (midnight UTC). If you blink, you'll miss it. Short version: There will be a service degradation for up to 20 minutes shortly after 8PM US...

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Dennis

8:09 PM

@Riker It's also a 27 MB GIF. ಠ_ಠ

Riker

apologies, I try to gauge by how fast they load, and it was pretty fast for me

must have been cached or something

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Compress playing cards (work in progress) kolmogorov-complexity First, let us define a deck of 52 standard playing cards: Ace, Jack, King, Queen, 1, 2, 3, 4, 5 ,6 7, 8, 9, 10, and each card has four suits: Clubs, Diamonds, Hearts, Spades, and thus 13 x 4 = 52 Your task is to devise the smalles...

8:23 PM

Question: Is there a good way to use a python/C/C++ library form ruby?

I can write a binding and all but I don't really have any idea how to do

the keyword to research is "foreign function interface"

jruby can run Java libraries

isn't ruby written in C?

> JRuby is a high performance, stable, fully threaded Java implementation of the Ruby programming language.

Right, mri ruby can run mri ruby libraries, jruby can run jvm and jruby libraries.

Though all the big mri libs have been ported to jruby

8:28 PM

Can jruby do rails and all? Is it a full implementation

Yeah, rails was fully ported

Jruby is generally faster since it compiles to jvm while mri is interpreted, but it uses orders of magnitude more memory.

Then there's Crystal

Basically a typed and compiled dialect of Ruby

Crystal is its own lang

Ugh. Whose brilliant idea was it to make python untyped

similar to Ruby, though

8:31 PM

But can it run Rails?

What about Python <-> Ruby interfacing?

Is there any way to force SE to save a draft of an answer?

flawr

@Riker espresso = caramel = lava confirmed.

@Downgoat There's a library just called rubypython that does that iirc

Riker

@flawr yep

8:33 PM

@Downgoat goto.info.waseda.ac.jp/~fukusima/ruby/python/doc/index.html

trichoplax

@ETHproductions I usually find it saves a draft of at least one post, but I'm not sure it can be relied upon so I usually save the draft externally to be sure. I don't know of a way to force it, it just seems to save periodically

Question: has anyone by any chance dealt with HDF file format before?

Q: Sort answer chaining questions by newest by default

Nope

New Meta Posts

3

answer-chaining-tagged questions should be sorted newest to oldest by default. It is disorienting to see them out of order because they are sorted highest to lowest votes. Agreed?

discussion feature-request answer-chaining

^ has more stars than upvotes

8:47 PM

@Phoenix do you know if it uses python bindings or spawns an entire python process

99% sure it's a python interpreter in Ruby

So yes, it spawns an entire python process

@ETHproductions which is written in C?

Which is written in Java. Obviously?

i meant the JVM

Technically then everything is written in machine code :P

8:51 PM

no, GCC is written in C and C++, PyPy is written in Python, etc

But JRuby is written in Java. It doesn't matter that Java is written in C

Python is written in C, for heaven's sake

yeah and that. too. also TIL than Oracle's JVM is written in C++

Well, CPython is anyway

I know OpenJDK is C++, but where'd you see Oracle's JDK is in C++ and not C?

Q: What programming language is used to develop Java?

30

I was asked in the interview what programming language was used to implement Java. I was stunned: I never thought of this. I only know the core Java classes are in Java. What programming language is used to develop Java?

java

8:54 PM

@betseg You know, some poor saps had to write the first C compiler in assembly.

BCPL?

as i thought, BCPL: stackoverflow.com/a/18126181/3312910

Ah

did someone actually write single bytes for the first assembly to machine code compiler?

My dad says yes, but I can't tell if he's just telling my horror stories of ye olden days.

But the internet says that no, first they wrote an incredibly simple proto-assembly, which they used to bootstrap writing more complicated assemblers, until something mostly usable for actual work was created.

but still, someone had to write single bytes for that proto-assembler

9:03 PM

Yep

seems terrifying

trichoplax

At least the computers were programmable at that point, so you didn't have to rewire it each time you wanted to do something different

All it had were probably jnz, mov, and a command to write the output somewhere.

Which seems reasonable.

UNIX time 1500000000 will be about on the pi approximation day

So it's an approximation of pi approximation day?

9:14 PM

yup

What's so special about 1500000000?

only special in the base 10 (that number is in base 10 btw)

Yeah, what's so special about 1011001011010000010111100000000? :P

Right, but a day is 86400 seconds, so you have quite range there, and it's an approximation anyway.

Not that surprising.

Wait, JS says new Date(1500000000000) (added three extra zeroes because milliseconds) will be July 14, 2017...

9:23 PM

pi approximation day is 22/7

Oh, I was going off the American standard of mm/dd

ew

So I guess it got the 7 right for European Pi Approximation day, and the 14 right for American Pi Approximation day... interesting...

$ | π - 3.14 | > | π - 22/7 | $, so 22/7 is superior than 14/3

@JanDvorak We should all just stick to yyyy-mm-dd. Makes sorting by date a lot easier :P

9:26 PM

@betseg 355/113

not on calendar

I always memorize it as 113355 split in two

1/(113/355)

It's impossible to make a dd-mm-yy date out of those digits though

11 is the only allowable month, but then 33 is the smallest possible day

I was just giving a nice rational approximation

I didn't see the date context

9:31 PM

314159265358979323846/100000000000000000000

7-22 is a good PI approximation

It's good enough for most purposes, then 355/113 is good enough for a lot of the rest

If it was Windows 00 that chart would be lot shorter

9:54 PM

@betseg What is the vertical axis measuring?

number of windows

@Phoenix The number related to the release (which is why Windows 2000 is so high)

oic

Welp, my school went and completely blocked GitHub. RIP

At least you still have SE

yep

10:04 PM

Welp, my country went and completely blocked Wikipedia. RIP

@betseg that's what you get when you elect a dictator =/

Dennis

At least you still have GitHub.

@orlp i didnt

s/you elect/your country elects/

'that's what you get' is an idiom not specifically referring to you personally

10:11 PM

Oh yes, I forgot the "you" is allowed to refer to Turkey

That's what you get when you take things too literally :P

Dennis

That's a standard loophole.

5

Wow... it took me forever to get the joke

i didnt mean that too, i meant someone else voted for him and he dictates me.

10:48 PM

@betseg do you know why this doesn't work?

@betseg are you able to access wikiwand.com?

@ConorO'Brien Try it online! you declared a pointer but it doesnt point to anywhere

wait nvm I need a malloc call

lol

XD

thanks

10:55 PM

@Phoenix yep, but i can access wikipedia too. my ISP doesnt hijack DNSs, i can change the DNS i use

sorry to bother you again, but I tried moving the logic to a function and it segfaulted

Sumant Bhaskaruni

ಠ_ಠ

@ConorO'Brien Try it online!

@SumantBhaskaruni what happened

that is really weird but ok

¯\_(ツ)_/¯ C

this does the same, just a different syntax

(*c).a == c->a

11:03 PM

thanks!

11:23 PM

sleeping, bai

11:35 PM

Anyone want to play Contact?

I want to, but I can't

Too sleepy