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Simple challenge: The code must be both valid Lisp and valid Fortran, and must print out "hello world" in both.
Note: I've sunk about 5 hours into this at this point, I'm not even sure it's possible at this point...
Details:
CoffeeTableEspresso
Posted 2020-02-26T23:06:28.343
Reputation: 137
7
;print*,"Hello world!"
;end
*(print "Hello world!")
DeathIncarnate
Posted 2020-02-26T23:06:28.343
Reputation: 916
Damn, that's clever. – CoffeeTableEspresso – 2020-02-26T23:29:14.120
I believe single semi-colons work as well, as well as just end instead of end program – Jo King – 2020-02-26T23:29:52.913
@JoKing Yeah, forgot I'd used full end program because I wanted to see if it would ignore post-end stuff – DeathIncarnate – 2020-02-26T23:35:06.850
You can drop the space after the comma as well I think – CoffeeTableEspresso – 2020-02-26T23:38:57.497
@CoffeeTableEspresso How's that for you? F77 style saving the day. – DeathIncarnate – 2020-02-26T23:51:27.700
@DeathIncarnate damn, that's even shorter than my one where I gave up and used -D... – CoffeeTableEspresso – 2020-02-27T00:05:38.907
@CoffeeTableEspresso Much as I appreciate it, you may want to wait before accepting. It's only been an hour. Better people than me may yet try and blow this out of the water. – DeathIncarnate – 2020-02-27T00:08:07.010
Well, now that this has been closed as duplicate I'll accept it... – CoffeeTableEspresso – 2020-02-27T02:32:47.437
Some stuff I've tried so far that might help people:
continueis a no-op in Fortran. Socontinue; ...will just execute...in Fortran, and just refer to a variablecontinuein Lisp. (since;is a line comment in most lisps). I haven't been able to leverage this into anything useful yet though. – CoffeeTableEspresso – 2020-02-26T23:12:15.760@JoKing yea, you're right. – CoffeeTableEspresso – 2020-02-26T23:25:22.883
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Possible duplicate of Build a polyglot for Hello World
– pppery – 2020-02-27T01:39:49.7103Taking a pre-existing challenge and arbitrarily restricting the set of languages in which answers are valid does not make a new, non-duplicate challenge. – pppery – 2020-02-27T01:40:30.647
@pppery I view this as a separate challenge because of how different the syntax is between the two languages. This was also inspired by a harder problem asking for a polyglot between these two specific language, which seemed impossible considering that I wasn't even able to write hello world polyglot between the two. – CoffeeTableEspresso – 2020-02-27T01:44:51.963
The hello world polyglot is not helpful too me since I am specifically looking at polyglots between Lisp and Fortran. (As @DeathIncarnate's solution shows, however, this is not as interesting as I initially thought, since his solution makes it trivial to write a polyglot for the two.) – CoffeeTableEspresso – 2020-02-27T01:46:14.697
4If you would like a specific language answer to a question you can post a bounty on that question. – Post Rock Garf Hunter – 2020-02-27T02:26:45.000
classic stack exchange – CoffeeTableEspresso – 2020-02-27T02:33:38.820