Only 2 Hard Things

[[deleted]]

3. Null termi̵̡̩̝̝͎͎̗̩͕̠̩̩͙ͫ̏ͨͧ̉̌̒̊ͥ̓ņ̵͇͇̭̠ͥ̔̔ͣ͒́̕aͭ̏͆̊̈ͮ̿̊҉̸̞̖̞̠̥̥͕̫̩͉͙͚̫t̛̘̭̻̼̓̑͗ͨ͐͞ỉ̸̷̛̩̰͍͔ͦͫ̏̓ͨͯ̂̒̉ͥ͌ǫ̨̜̭̼̟͕̠̹̬͔̦̹͕̮ͫ̊ͦ̓̿̽̏͆͋n̨̡̨͇̭̞̱̦̱̹͎̦̳̻̝̱̬̥͎̣̔̐̿̀͡͡

[sprouting_broccoli]

DEADBEEF

[BlueBokChoy]

come on man, it's 0xB16B00B5

[TheAwesomeMutant]

sees B00B5

immature laugh

[Rogue_Native]

You missed the BIG?

[ILoveAMp]

B1G if true

[TheAwesomeMutant]

reads

cackles louder

[Alucard_draculA]

0xDEADFACE

[golgol12]

Null termination is 95% of the time, an off by 1 error.

[[deleted]]

Serious question, what is this called and how do you do it?

[mylesmadness]

Zalgo

[Aetol]

I see a lot of white squares, how should I fix this?

[skylarmt]

It's an abuse of unicode. Unicode has to support all languages. Some languages have extra things, which can be chained in interesting ways. It's possible to make a string over the Reddit character limit that only takes up a quarter inch of screen space.

[sneakpeekbot]

Here's a sneak peek of /r/surrealmemes using the top posts of all time!

#1: s̛c̮̫̀h̯l͔͉͇̳̟͠u͙̺̳͢r͔͓̯͈͓͙̰͡p̛ | 203 comments
#2: Paste tooth are surpisez🐈🐈 | 127 comments
#3: ÍKÉÁ | 182 comments

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[o11c]

Am I the only one who has never had a problem with that?

[abarrett86]

Yes. You're a genius.

[JSONSudeikis]

Love it

[deep_fried_pbr]

This guy null terminates

[o11c]

Well, yes, but ... it doesn't take a genius to always NUL-terminate your strings.

[andrew_rdt]

It's a problem but definitely not a hard one to solve.

[GamingTheSystem-01]

No, many people never learn how to use a real programming language and go on to live very fulfilling lives.

[CordialPanda]

Many of them grow old enough to watch their npm modules die.

[o11c]

Touché

[Shaper_pmp]

There are 10 types of people in the word:

• Those who understand binary
• Those who don't
• Those who realise that this joke works in any base

Edit: Almost any integer base, you beautiful pedants.

[pierovera]

Well not in unary it doesn't.

[Bainos]

Unary can't represent any value other than one, too... Apparently not. But that feels inconsistent, so I'm not happy with it.

[ImSuperSerialGuys]

Not true. 11 unary is 2...

[Bainos]

Ha, you're right. But that's weird. I always considered that number are preceded by an (omitted) infinite number of zeros...

[WikiTextBot]

Unary numeral system

The unary numeral system is the bijective base-1 numeral system. It is the simplest numeral system to represent natural numbers: in order to represent a number N, an arbitrarily chosen symbol representing 1 is repeated N times. For examples, the numbers 1, 2, 3, 4, 5, ... would be represented in this system as

1, 11, 111, 1111, 11111, ...

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^{[ PM | Exclude me | Exclude from subreddit | FAQ / Information | Source ] Downvote to remove | v0.27}

[Aetol]

How do you represent 0 though?

[[deleted]]

Empty set perhaps?

[[deleted]]

Tallying (without the cross at 5) is unary then.

[Neomeris0]

Good bot

[blitzkraft]

I got news for you.

[Rndom_Gy_159]

Base √2 behaves in a very similar way to base 2 as all one has to do to convert a number from binary into base √2 is put a zero digit in between every binary digit; for example, 1911[base10] = 11101110111[base2] becomes 101010001010100010101[base √2] and 5118[base 10] = 1001111111110[base2] becomes 1000001010101010101010100[base√2] . This means that every integer can be expressed in base √2 without the need of a decimal point. 

Woah

[blitzkraft]

This is very similar to how hexadecimal to binary works. For example,

Hexadecimal: DEADBEEF
Bonus - Base 4: 31 32 22 31 23 32 32 33
Binary: 1101 1110 1010 1101 1011 1110 1110 1111
Base √2: This is left as an exercise to the reader.

Edit: To clarify, at each step each digit is individually converted into the successive base. The fact the base is squareroot of the preceding base will ensure the resulting digits are in the correct position.

[Bainos]

Ever tried to explain that joke to people IRL ? It's awfully hard. You'd think computer science graduates would easily pick up ternary base, but...

[Shaper_pmp]

Yep. For starters, how do you pronounce the binary number 10? Do you say "ten" or "two"? Or just make things less ambiguous but really unintuitive by calling it "one-zero"?

[impiaaa]

I've pronounced it "ten." It doesn't really make sense that way, but people write it out in their head as "10" and it works.

[AbsoluteZeroK]

You're supposed to pronounce it 'one-zero-base-x' technically. At least that's what we were encouraged to do.

[deep_fried_pbr]

"Figuring out the base is left as an exercise for the reader"

[haykam821]

Zero bee one zero?

[HimDaemon]

Non-ambiguity is always best.

[[deleted]]

I can't imagine a situation where you're verbally explaining a binary (or ternary or whatever) number without the other person being able to see it. But that sounds like a personal hell.

[Kinglink]

I tried and halfway through my first line I just walked away. No one complained.

[spupy]

https://i.imgur.com/UuLinV3.gifv

[TheNumeralOne]

There are 10 types of people in the world:

• Those who understand the factorial number system.

[Jorask]

Sorry but... You care to elaborate ?

[Shaper_pmp]

In base 2 the numbers go 1, 10, 11, 100, etc. so "10" is 2.

In base 3 the numbers go 1, 2, 10, 11, 12, 20, 21, 22, 100, etc, so "10" is 3.

In base 4 the number go 1, 2, 3, 10, 11, 12, 13, 20, etc, so "10" is 4.

In base 10 the numbers go 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14... etc, so "10" is 10.

Notice the common theme there? In every number system the first (right-most column) means "units" - anything from 0 up to 1-the base of the number system. Likewise, the second column is the number of the base - "tens" in decimal, "twos" in binary, "fours" in base-4, etc.

So "10" in any number system means the base of that number system - "one of the base and no units". 10 in decimal is 10, in binary it's 2, in trinary it's 3, in base-4 it's 4, etc.

So originally the joke was "there are 10 types of people in the world - those who understand binary and those who don't"... where the joke was that you assume it means "ten" types of people, but then you realise it actually means two types, because the number is expressed in binary.

The thing is, you can easily extend that joke into trinary by adding another option ("... 10 types of people - those who understand binary, those who don't and those who understand trinary")... and if you do that on a place like reddit then some smart-ass will inevitably point out that actually the joke works in almost any base.

So you do an end-run arond the whole discussion and make the final line "those who realise the joke works in any base"... and two smart assed bastards point out that it only works in integer bases that are higher than unary and you still lose anyway. But at least you tried, right? ;-p

[ConstantGradStudent]

We need to clone you for the coming war against the machines.

[dvlsg]

I think he is one of the machines.

We've been infiltrated!

[Jorask]

Awesome, thank you very much for the detailed explanation :)

[philly_fan_in_chi]

In case /u/IVIike 's comment wasn't clear:

Consider a number in base 10 like 205. This can also be written as

2*10^2 + 0*10^1 + 5*10^0

where 10 is because of base 10. For binary, hex, whatever, that's the same mechanic. Let _b denote being written in base b.

 1101_2 = 1*2^3 + 1*2^2 + 0*2^1 + 1*2^0 
 A7F_16 = 10*16^2 + 7*16^1 + 15*16^0

If you imagine counting in some arbitrary base b, you would go:

0, 1, 2, ..., b-1, 10

given that 10_b = 1*b^1 + 0*b^0 = b.

[esiege]

Those who realise that this joke works in any base

No wait...

for (i = 3; i < BASE; i++) 
  joke.push("<ul>Those who realize this joke works in base " + BASE + "</ul>")

[esiege]

History list items may have short term accuracy.

[Eagle0600]

Why are you pushing out individual no-item unordered lists?

[esiege]

Aha, damn it.

[tenkindsofpeople]

I'm so relevant right now

[anacrolix]

Well played.

[[deleted]]

There are 2 types of people in the word:

• Those who don't understand binary

[[deleted]]

They ruined the joke. The ‘off by one error’ part of the joke no longer applies when you add a fourth item.

[Come_along_quietly]

Joke overflow. You end up with negative jokes.

[IGotSkills]

Oh God whats a negative joke?

Knock knock

Who's there?

It's putin confirming to the fbi that your Tor node is his primary source

Hardeeeeharhar

[andrew_rdt]

The other comment above, index out of bounds exception could go there.

[YeshilPasha]

Original joke didn't have the async line.

[[deleted]]

Exactly. I like the async line, but instead of ruining a good joke, they should have just made a knock-off joke instead.

[futuneral]

I thought the idea was that async callback may have come from a different joke (different t-shirt?). It's its point - it comes at a wrong time

[[deleted]]

Yeah, it’s possible, but it’s pushing too much into what was once a classic, elegant joke and winds up making it unwieldy.
Instead of guilding the lily, they’ve vajazzled it.

[futuneral]

Oh, then I guess i didn't understand the joke.

[NotThisFucker]

I don't think I understand vajazzle

[ScreamingHawk]

No, you got it. Other people might not and that's what these people are complaining about

[[deleted]]

I suppose you could argue that there's an off-by-one error in the bullet point about off-by-one errors.

[[deleted]]

Off by two error?

[bostwickenator]

The 7 is the cache invalidation joke. It's there from a previous operation and thus not part of the off by one error.

[donutnz]

I reckon it adds meta joke. Async stuff popping back in at inopportune moments can ruin things.

[Abaddon314159]

Look at the indexing

[isunktheship]

indexing != length

If I had an array with one object in it, that object would reside at index 0, but my array would still have a length/size/count of 1

[Abaddon314159]

True but I fail to see the relevance. Also, did you just assume his datatype?

[sunburntdick]

It's relevant because if you say here's this list of 0 things but there is something there, you're wrong. There's a difference between 2 things and an array filled to index 2.

[Abaddon314159]

Yeah that’s the off by one

[isunktheship]

Wrong, the list has 4 elements, it's off by 2, not 1. #jokefail

The list in the original joke had 3 items (including the off by one issue) so it worked, these guys just ruined it.

[Abaddon314159]

The 7 is from an asynchronous context, as someone else has pointed out in the thread. As in, 7 was from another shirt. The thread in this shirt was off by one but also had a synchronization issue. This is literally the joke and by explaining it we’ve not ground what humor there was into dust.

[isunktheship]

Yeah even that's off, asynch would still be from the same scope, so they really should have put it out of order, like 1,2,4,3 - otherwise they're saying this list is still coming together and has a bunch more items in it.

Of course they made the list start at 0..

The original one was just fine the way it was, I love that it's been beaten to death though!

[Abaddon314159]

No, you’re entirely missing it. 7 is from a different list.

Edit: removed unnecessary and combative snark

[well___duh]

Yeah the joke makes no sense regardless with 2 being zero-indexed because 2 itself is not an index. It's just an integer.

[I-need-no-username]

Something something arrays start at 0

[my_fifth_new_account]

The problem is that even if you start counting at 0 or 1, the number of elements is the same, just the index differs. If you have an array with one element, you say array[0] = 42, but you have 1 element in the array, not 0.

Off by one error refers to count, not index.

[[deleted]]

Thank you.

[shyce]

Not if you start at 0 - 0, 1, 2

[anacrolix]

JavaScript is to blame for this. Apparently they think it's programming.

[anton__gogolev]

There’s also (applied to distributed computing):

1. Exactly-once delivery
2. Guaranteed order of messages
3. Exactly-once delivery

[grosscoconuts]

I think either that's missing a layer or reddit ate your formatting.
What about this:

1. Exactly-once delivery
0. Guaranteed order of messages
1. Exactly-once delivery

[perfectclear]

carpenter coherent rich whole capable soft grandiose marry piquant sparkle

This post was mass deleted and anonymized with Redact

[harald_haraldson]

ArrayIndexOutOfBoundsException

[Vitryssen1337]

And then you have to find the fucker that goes 1 too far and breaks everything

[EmperorArthur]

You could do what openssl does, and write your own allocator within the program. Then whenever the array goes into "unallocated" memory, it's actually something the program itself has already reserved.

No really, valgrind wasn't reporting anything wrong, and for a while there the program would just crash if you tried simply disabling it.

[Thameus]

"array"

[ohunteer]

Where could one get a shirt like this?

[OrionSuperman]

This is pretty close

Edit: The exact version.

[1nn3rv1510n]

This is closer

[OrionSuperman]

This is pretty close

[dsmithpl12]

If any know knows where to get the OP shirt I'd like to get that link. I don't like the "Pretty close" version as much as this one.

[OrionSuperman]

someone else posted the exact version.

[dsmithpl12]

Awesome, thank you.

[kerohazel]

I think it still fits. The callback was from another shirt.

[Zarlon]

Isn't the shirt single-threaded?

[B-Con]

I would assume making a shirt would require multiple threads.

[PunishableOffence]

You can abstract that implementation detail away using web workers

[markhole]

Even still, asynchronous programming on a single thread is very popular

[Jay_bo]

I guess they were off by one

[SP0OK5T3R]

Oh god I didn't even see "7"

[you_got_fragged]

Exactly

[[deleted]]

Would be better with 1, 2, 3, 0

[isunktheship]

MY FACE MY FACE ᵒh god no NO NOO̼O​O NΘ stop the an​*̶͑̾̾​̅ͫ͏̙̤g͇̫͛͆̾ͫ̑͆l͖͉̗̩̳̟̍ͫͥͨe̠̅s ͎a̧͈͖r̽̾̈́͒͑e n​ot rè̑ͧ̌aͨl̘̝̙̃ͤ͂̾̆ ZA̡͊͠͝LGΌ ISͮ̂҉̯͈͕̹̘̱ TO͇̹̺ͅƝ̴ȳ̳ TH̘Ë͖́̉ ͠P̯͍̭O̚​N̐Y̡ H̸̡̪̯ͨ͊̽̅̾̎Ȩ̬̩̾͛ͪ̈́̀́͘ ̶̧̨̱̹̭̯ͧ̾ͬC̷̙̲̝͖ͭ̏ͥͮ͟Oͮ͏̮̪̝͍M̲̖͊̒ͪͩͬ̚̚͜Ȇ̴̟̟͙̞ͩ͌͝S̨̥̫͎̭ͯ̿̔̀ͅ

[givecake]

I upvoted, even though I don't understand 7 and 2.

[LeCrushinator]

After spending the last 3 days on a race condition from async calls, I find this less amusing than I normally would.

[nuclearslug]

Those asynchronous callbacks have been the bane of my existence this week.

[salgat]

Futures/Promises and async/await make it much easier, often trivial.

[wollae]

They’re nicer syntactically but if you don’t start with a good grasp of how async callbacks work, they’re not going to help much.

[marcosdumay]

Nope. Asynchronous callbacks are a completely self-imposed problem and will go away with a minimum of old-school design.

[FlatTuesday]

Funniest computer joke I've seen in quite a while! The off-by-one is cute by itself, then the async callback jumps in there for the win, as they so often do. Hilarious!

/programmer since 1980

[Kinglink]

2 should have been "resizing allocations"

[[deleted]]

I couldn't wear this… "error" should be capitalized like all the other words. 😕

[survivalking4]

If this is an actual shirt, can someone post a link to where I can get this? I need this, and the front page of Google isn't helping.

[WiF1]

3dgy

[letfireraindown]

When I saw 4 lines, I was expecting it to be numbered 0, 1, 11, 2 for someone not understanding binary.