Shortest infinite loop producing no output

Question

Your task is to create the shortest infinite loop!

The point of this challenge is to create an infinite loop producing no output, unlike its possible duplicate. The reason to this is because the code might be shorter if no output is given.

Rules

• Each submission must be a full program.
• You must create the shortest infinite loop.
• Even if your program runs out of memory eventually, it is still accepted as long as it is running the whole time from the start to when it runs out of memory. Also when it runs out of memory, it should still not print anything to STDERR.
• The program must take no input (however, reading from a file is allowed), and should not print anything to STDOUT. Output to a file is also forbidden.
• The program must not write anything to STDERR.
• Feel free to use a language (or language version) even if it's newer than this challenge. -Note that there must be an interpreter so the submission can be tested. It is allowed (and even encouraged) to write this interpreter yourself for a previously unimplemented language. :D
• Submissions are scored in bytes, in an appropriate (pre-existing) encoding, usually (but not necessarily) UTF-8. Some languages, like Folders, are a bit tricky to score - if in doubt, please ask on Meta.
• This is not about finding the language with the shortest infinite loop program. This is about finding the shortest infinite loop program in every language. Therefore, I will not accept an answer.
• If your language of choice is a trivial variant of another (potentially more popular) language which already has an answer (think BASIC or SQL dialects, Unix shells or trivial Brainf**k-derivatives like Alphuck), consider adding a note to the existing answer that the same or a very similar solution is also the shortest in the other language.
  
• There should be a website such as Wikipedia, Esolangs, or GitHub for the language. For example, if the language is CJam, then one could link to the site in the header like #[CJam](http://sourceforge.net/p/cjam/wiki/Home/), X bytes.
• Standard loopholes are not allowed.

(I have taken some of these rules from Martin Büttner's "Hello World" challenge)

Please feel free to post in the comments to tell me how this challenge could be improved.

Catalogue

This is a Stack Snippet which generates both an alphabetical catalogue of the used languages, and an overall leaderboard. To make sure your answer shows up, please start it with this Markdown header:

# Language name, X bytes

Obviously replacing Language name and X bytes with the proper items. If you want to link to the languages' website, use this template, as posted above:

#[Language name](http://link.to/the/language), X bytes

Now, finally, here's the snippet: (Try pressing "Full page" for a better view.)

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body{text-align:left!important}#answer-list{padding:10px;width:500px;float:left}#language-list{padding:10px;padding-right:40px;width:500px;float:left}table thead{font-weight:700}table td{padding:5px}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <link rel="stylesheet" type="text/css" href="//cdn.sstatic.net/codegolf/all.css?v=83c949450c8b"> <div id="language-list"> <h2>Shortest Solution by Language</h2> <table class="language-list"> <thead> <tr><td>Language</td><td>User</td><td>Score</td></tr> </thead> <tbody id="languages"> </tbody> </table> </div> <div id="answer-list"> <h2>Leaderboard</h2> <table class="answer-list"> <thead> <tr><td></td><td>Author</td><td>Language</td><td>Size</td></tr> </thead> <tbody id="answers"> </tbody> </table> </div> <table style="display: none"> <tbody id="answer-template"> <tr><td>{{PLACE}}</td><td>{{NAME}}</td><td>{{LANGUAGE}}</td><td>{{SIZE}}</td><td><a href="{{LINK}}">Link</a></td></tr> </tbody> </table> <table style="display: none"> <tbody id="language-template"> <tr><td>{{LANGUAGE}}</td><td>{{NAME}}</td><td>{{SIZE}}</td><td><a href="{{LINK}}">Link</a></td></tr> </tbody> </table>

Answer 1

Vyxal, 1 byte

{

Try it Online!

Answer 2

Braingolf, 4 bytes

[1+]

Try it online!

Braingolf v2, 3 bytes

1[]

Try it online!

Answer 3

Pure CPython 3.10 Bytecode, 2 bytes

Hex:

71 00

Disassembly:

    >>    0 JUMP_ABSOLUTE            0 (to 0)

Attempt This Online!

Answer 4

KonamiCode, 12 bytes

v(^)L(>)B(>)

S(^)L(>)B(>) does the same thing but isn't shorter.

Answer 5

Plumber, 7 bytes

[]
[[]]

This is the shortest possible infinite loop in Plumber.

Plumber programs are divided into units, which are always two characters wide (and padded to two with spaces if shorter). This one consists of three units: [], [[, and ]]. When a Plumber program is run, a 0 packet is dropped from all [] on the top row. This packet can be picked up by a ][, which pushes it to the sides.

A [[ will push it to the right, but it continues down (and is destroyed upon leaving the 2d space). Likewise, when the ]] is pushed into from either side (left in thus case), the packet is dropped and destroyed, and pushed back to the left. The [[ pushes it back to the ]], and this continues indefinitely.

Answer 6

Lost, 1 byte

?

Try it online!

Answer 7

Rust, 6 bytes

loop{}

Try it online!

That's one very fast loop

Answer 8

BitCycle, 3 bytes

1><

Try it online!

Explanation (because i can)

1    Creates a 1 bit, heading east by default
 >   Sets the direction to east
  <  Sets the direction to west
 >   Sets the direction to east again, creating a loop

Answer 9

Knight, 3 bytes

W1N

Epic W1N.

Answer 10

[min]mod, 2 bytes

IS

Treats the instruction stack as an instruction and calls it recursively.

Try it!

Try it step by step!

Answer 11

Tsept v1.0, 5 bytes

Tsept is an esolang I created; it's not good at golfing since even basic tasks like storing numbers and printing strings require a lot of instructions.

This program is 5 bytes long because it has to calculate and repeatedly push the jump offset.

xDDPJ

Note: Due to a bug in the interpreter, the 'J' instruction jumps to the wrong offset (specifically the original offset plus one).

'x' clears the value in the accumulator since, at the start, it contains the interpreter's version.

'D' decrements the interpreter, and due to the aforementioned bug, it has to do it twice.

'P' pushes the accumulator onto the stack.

'J' pops a value from the stack and adds it to the instruction pointer, effectively performing a relative jump.

Answer 12

Swift, 12 bytes

while(1>0){}

Answer 13

Rust, 17 chars

fn main(){loop{}}

Nothing much interesting to see here.

Answer 14

FlogScript, 6 bytes

This creates a string containing code for duplicating the top value on the stack, then popping it and executing it as code. Then it is duplicated, popped, and executed as code.

{.~}.~

Answer 15

Lua, 11 bytes

In Lua, you can set labels that can be used with the goto statement!

::y::goto y

Answer 16

HALT, 7 bytes

1 SET 1

This set's the pointer to 1, this is run forever because there is no HALT; command. This will bybass fail-safes to prevent infinite looping.

Try This

Answer 17

CoffeeScript, 6 bytes

loop 0

Interesting fact thanks to Martin Büttner, not sure if there's any practical use to it though.

Previous attempt (8 bytes):

1while!0

There is only a while loop, no for (though there are for..in and for..of).

Answer 18

Basilisk, 5 bytes

:A1gA

Pretty simple.

Explanation

• :A

Defines position A.

• 1gA

Pushes one and goes to position A in code. Since the gA pops the top value in stack, if the loop were ever to end, it would not print anything.

Answer 19

STATA, 10 bytes

while 1{
}

Apparently for loops in STATA always halt, but while loops can be infinite.

Answer 20

VBScript, 17 bytes

do
loop while 1

Answer 21

C++, 15 bytes

Same as C:

main(){main();}

Answer 22

F#, 14 bytes

while 0<1 do()

Self-explanatory.

Answer 23

AHK, 4 bytes

loop

quick and simple

Answer 24

Pip, 3 bytes

W1x

Basically a while 1: 0 answer.

---

A more interesting 2-byte solution that doesn't quite fit the rules:

Vf

f is the current function; V evaluates it. This theoretically goes on forever, but in actuality it ends up causing infinite recursion in the interpreter, which very quickly exits with

Fatal error: maximum recursion depth exceeded while calling a Python object

Oh well.

Answer 25

Fourier, 3 bytes

1()

Repeats until the result of the loop equals 1, which it never does.

Answer 26

Aheui, 0 bytes

Aheui is a Befunge-like, and the empty program is an infinite loop for exactly the same reason.

Answer 27

Batch, 3 bytes

@%0

Answer 28

CFL 2 (ComeFrom 2), 17 bytes

10 comefrom 20
20 

Try it here.

Answer 29

Carriage, 30 bytes

111-@11-~!$11111++++11-~@11-~!

Answer 30

SmallTalk – 18 bytes

[true]whileTrue:[]