Shortest code to produce infinite output

Question

Write the shortest code you can that produces an infinite output.

That's all. You code will only be disqualified if it stops producing output at some point. As always in code golf, the shortest code wins.

Here's a list of answers that I think are really clever, so they can get credit:

• The comma is both code and data
• Infinite errors (that counts)
• Infinite warnings (that also counts)
• What's Marbelous?

Leaderboard

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Answer 1

Pyth, 4 bytes

Pyth is a new programming lenguage, so this answer doesn't count.

.V"0

Explanation:
.V   - Forever loop
  "0 - Outputs zeros

Answer 2

Röda, 12 bytes

{[0]while{}}

This is an anonymous function that prints zeros infinitely.

Answer 3

Pascal, 50 B

Full program compatible to ISO standard 7185 “Pascal”.

program p(output);begin while 8=8 do writeLn end.

program p(output);begin while 0=0 do write(1)end.

Some dialects such as Free Pascal do not require and actually ignore the program header (the program p(output);). There you could omit those 18 bytes, so it’s 32 bytes in total.

Answer 4

Phooey, 4 bytes

=[?]

Try it online!

Outputs a debug dump repeatedly.

>>> DEBUG <<<
Tape: [>1<]
Stack:
>>> DEBUG <<<
Tape: [>1<]
Stack:
>>> DEBUG <<<
Tape: [>1<]
Stack:
>>> DEBUG <<<
Tape: [>1<]
Stack:
...

=      tape = tape == stack
       since tape and stack are 0, sets it to 1
[      While tape is not 0
   ?     Dump debug info
]      End

---

Phooey (interpreter bug, eventual crash), 2 bytes

<?

Try it online!

Based on my "Raise a SIGSEGV" entry, where an interpreter bug is used to cause an infinite printing loop.

The bug is thoroughly explained in that post.

However, as one might expect, this does eventually (and quickly) segfault. If there was no memory protection, it would run infinitely.

Answer 5

Motorola MC14500B Machine Code, 1.5 bytes

1BC

Explanation

1   # store data in register R
 B  # output R
  C # JMP to the start of the program

Answer 6

AWK, 14 bytes

{for(;;)print}

Try it online!

The default output for AWK is your input, so pass this any string and it prints it (on a new line) forever.

Answer 7

BASIC, 20 13 bytes

1PRINT1:GOTO1

This has probably been done before

Answer 8

Raku (Perl 6) (rakudo), 14 bytes

.say for 1 xx*

Attempt This Online!

Answer 9

C# (72)

using System; class P {static void Main(){for(;;) Console.Write('-');}}

Output