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

Etre, 2 bytes

()

The program sets the first cell to 1, then loops while it isn't zero.

Answer 2

Skull, 8 bytes

for(;;);

Uses a bug in the Skull2C transpiler, where unrecognized expressions are converted directly into C.

Answer 3

KimL, 14 bytes

A:
ctrl.goto A

For whatever reason, labels must come before the lines that they label.

Answer 4

Perl 6, 7 bytes

loop {}

but...

> loop{}
===SORRY!=== Error while compiling <unknown file>
Whitespace required after keyword 'loop'
at <unknown file>:1
------> loop⏏{;}

k.

Answer 5

Perl 5, 9 bytes

while(){}

boooooooooooooooooooooooooooooooooooooooooring.

Answer 6

Postscript, 6 bytes

{}loop

Infinite loop that does nothing. Ties up 1 core at 100% when run under ghostscript. Interestingly, the ghostscript interpreter keeps accepting input, so it must be running a separate thread. Not sure what would happen if this was sent to a printer, though.

Answer 7

Oracle PL/SQL 11.2, 30 bytes

BEGIN LOOP NULL;END LOOP;END;/

Answer 8

Magic, 7 bytes

skip -1

A simple self-GOTO.

Answer 9

NTFJ, 2 bytes

Try it here!

~^

This is stiflingly simple. ~ pushes a 0 to the stack, and ^ pops N and goes that position in the source code. The simplest unconditional loop in NTFJ is this.

Answer 10

GNU Make, 16 bytes

f=$(call f)
$(f)

The loop is in make itself, not a program it invokes.

Answer 11

Pylons, 4 bytes.

w,1}

Loops while 1 is true.

Answer 12

Milky Way 1.6.5, 3 bytes

&{}

See the docs.

Answer 13

ForceLang, 9 bytes

Works by abusing the new def instruction.

def a a
a

Original 14-byte answer:

label l
goto l

Answer 14

Mathcad, 4 "bytes"

In Mathcad the user enters programming language commands using keyboard shortcuts (or picking them from the Programming Toolbar) rather than writing them in text. For example, typing ctl-] creates a while-loop operator that has two "placeholders" for entering the condition and a single line of the body, respectively. Typing = at the end of a Mathcad expressions causes Mathcad to evaluate the expression.

So to enter the above while loop, the user enters "ctl-]11=". Mathcad will then eternally evaluate 1.

Answer 15

WhoScript, 4 bytes

1v;d

The 1 tells the interpreter to use one-line mode, v starts an infinite loop, and d loops back to the v.

Answer 16

Come Here, 11 bytes

1COME FROM1

Answer 17

Cy, 8 bytes 6 bytes

{1} do

Explanation:

{1} is a block (procedure) that pushes 1 to the stack (truthy). do will continue to execute that block until it pushes something falsy to the stack, which will never happen.

Answer 18

tinyBF, 5 bytes

+|= |

Similar to +[] in BF. The space is required here, as |=| (meaning []) is converted to ,.

Answer 19

Braille, 6 bytes

⠁⡀

Self-GOTO with a NOP. If it isn't displayed properly (and/or you want to test it):

0000000: e2a0 81e2 a180                           ......

Answer 20

Grocery List, 6 bytes

W
L
E

Note the preceding newline. W pushes 100 to the stack, and L and E loop while the top of stack isn't 0.

Answer 21

Dumbfuck, 2 bytes

.?

. sets the current cell to 1, and ? jumps to itself (due to the cell being an odd number).

Answer 22

Pyke, 1 byte

r

Try it here!

The r node sets the counter to 0, resetting the program.

Answer 23

Tellurium, 5 bytes

[i|p]

This is pretty simple to explain. It runs the command p (Does nothing, which is why it's good for this challenge) forever (i = infinity).

Answer 24

Glypho, 3 bytes

1[]

Pushes 1 to the stack, then loops while the top of the stack isn't 0. Uses the Java interpreter. This is shorthand for the following "real" Glypho program:

  !" ! " !"!

Answer 25

Churro, 20 bytes

{o}=}{==={*}{===={*}

Consists of three churros. {o}=} pushes 1 to the stack, and {==={*} and {===={*} loop while the top of stack is not zero.

Answer 26

niblet, 2 bytes

 [

The space is just a no-op, and the [ moves the IP to the previous character.

Answer 27

0815, 7 bytes

}: :#: 

(trailing space)

}:0:#:0

Explained:

}:0:    :Create a label 0
    #:0 :Go to the label 0 if Z is 0h

Answer 28

Trigger, 5 bytes

 !  !

Generally, any program with an "ABAAB" pattern should work. toggles the ' ' trigger to 1, ! toggles the '!' trigger, and ! jumps to the nearest ! if the ' ' trigger is 1 (which it is).

Answer 29

Benul, 0 bytes

In Benul, programs are placed in an implicit infinite loop and require special conditions to terminate.

Answer 30

AlphaBeta, 2 bytes

 N

 is a no-op, and N moves the IP to the value stored in the position register (initially 0) if the third register is 0 (which it is).