The 2nd Monitor

Simon André Forsberg

22:00

I'm also wondering what language @SirPython's is in...

I have done a Java Brainfuck compiler myself, would like to continue work on it some day...

just imagine brainfuck unit tests!

or some kind of assertions that you can add in your code to make sure that the memory is what you think it is

Hosch250

I'm going to turn my image checking program into a unit test.

SirPython

@Corbin I'm doing it in C

Simon André Forsberg

would allow more readable Brainfuck code!

@SirPython Y U NO JAVA!?

Hosch250

Also, I'm going to create a unit test for a few other parts of my code.

Corbin

@SirPython ah. It's interesting how C seems to be a common choice for it.

Phrancis

22:02

3

SirPython

@SimonAndreForsberg I don't know JAVA that well. And, I hadn't even thought of doing it in Java.

Captain Obvious

0

Q: Fully Generic C++ Stack Implementation Without Lists, Arrays, or Vectors

I'm trying to write a fully generic Stack in C++. I'm not sure if this is the best way to do this. Right now I know that the Pop method needs improvement since if T is a value type, returning a nullptr will cause a compiler error. Also, I'm pretty sure that this can be optimized in a few way...

Simon André Forsberg

@SirPython right. good point :) JAVA != Java. Hard to write Java in yellcase without changing meaning these days.

Phrancis

PUBLIC STATIC VOID MAIN(STRING[] ARGS) {

Corbin

:-(

Simon André Forsberg

22:07

@Phrancis PUBLIC CLASS HELLOWORLD {

Legato

SYSTEM.OUT.PRINT.("CHALLENGE ACCEPTED");

Phrancis

Something like that :)

Simon André Forsberg

@rolfl I have a message from my friend Simon, he says: Great puns.

And when Simon, who is the king of puns around here, says great puns, then it is really a great pun.

Corbin

gah, i'm going to have to actually unit test this or something

i can't figure out where in the world my bf interpreter is messed up :(

Simon André Forsberg

yes, it is a good idea to unit test BF-interpreters

I had some issues with getting the while-loops to work correctly. Especially when they were nested.

Can't even remember how I solved it.

Hosch250

22:15

> Is this the ~~socially accepted~~ correct way of doing this?

Simon André Forsberg

14

Q: Brainf**k Interpreter in Java

Description To increase the awareness of my previous brainfuck question, not only is there a bounty on it (Thanks, Mat's Mug) but here's also a brainfuck interpreter. This is written with Java 8 Class Summary (298 lines in 4 files, making a total of 7409 bytes) BrainF.java: Represents a Brai...

java interpreter brainfuck

Duga

The main problem seems to be indenting, not semicolons... anyway, you might want to ask at Code Review instead. — Juhana 1 min ago

SirPython

@SimonAndréForsberg At least it's better than LOLCODE, which your last message sort of looked like.

Simon André Forsberg

@SirPython true that

SirPython

How does one make a strike through of some text?

Simon André Forsberg

22:19

@SirPython In chat? ---I have no idea---

SirPython

~~thanks~~

~~i'll check someplace else~~

That's odd - it's not working on the post that I am writing.

Hosch250

Interesting set of valid tags for my new question:

c# image loop directory console

0

Q: Do my Image Widths Exceed Limit?

I needed to find whether any image's width at or higher than a certain directory folder exceeds a limit. Is this code a good way of doing this, or is there a way in which it can be improved? I ran it over at least a couple hundred images and several hundred other files contained in the main dir...

c# loop image file-system console

Captain Obvious

0

Q: Do my Image Widths Exceed Limit?

I needed to find whether any image's width at or higher than a certain directory folder exceeds a limit. Is this code a good way of doing this, or is there a way in which it can be improved? I ran it over at least a couple hundred images and several hundred other files contained in the main dir...

c# loop image file-system console

Hosch250

Downvote, close, and delete all you want. I'm taking off now.

VRROOOOOMM!!!

Phrancis

Why would we do that? Seeya.

Hosch250

22:26

Just kidding. See you.

Corbin

oh my god... finally figured it out. i'm an idiot and misremembered the exact semantics of for loops.

SirPython

@SimonAndreForsberg How do I do the strike through on a normal post, rather than chat?

Simon André Forsberg

@SirPython <s>No clue.</s>

Phrancis

lol

SirPython

<s>You aren't a very helpful resource</s>

Thanks ;-)

Simon André Forsberg

22:32

@Corbin for (initialization; condition; iteration) ?

@SirPython <s>Many problems</s>

No problem ;)

Phrancis

for (i = don't remember; i < RTFM; i++) :D

Simon André Forsberg

@rolfl murder-update The motive seems to have been, according to at least one Swedish media site, a money debt.

I wonder how killing someone is going to help that person pay a money debt?

Phrancis

It's only going to help the next person not forget to pay a money debt...

Simon André Forsberg

It is likely that drugs seems to be involved here, somehow. Some of the involved people have been caught using.

SirPython

Sounds like a loan shark, which could be a part of a small organized crime group.

Simon André Forsberg

22:36

@Phrancis I don't think it's about forgetting...

Either way, the two arrested are apparently "good friends" with the two murdered men. And, of course, they deny any involvement....

Phrancis

@SimonAndréForsberg Murders suck.

Simon André Forsberg

The woman was just at the wrong place at the wrong time.

Mehrad

Morning all

Simon André Forsberg

Morning, Australia!

Phrancis

@Mehrad ~~Happy Monday~~ Monking!

Simon André Forsberg

22:40

There's only been 11 cases of triple-murder during the whole 1900's in Sweden, so this is major-national-media-coverage

Phrancis

Ouch

Mehrad

@Phrancis Ohhh yeahhh... it's the same jolly Monday we all know :)

Phrancis

@JeroenVannevel ^^

Mehrad

Thanks :) had a good start so far

Jeroen Vannevel

aw, looks exactly like one of mine

SirPython

22:42

@SimonAndréForsberg Were the murders back-to-back, or were they spread out across months/weeks?

Simon André Forsberg

@SirPython The night to saturday. Around 1-2 AM. All at once.

SirPython

That's horrific. I'm glad you are okay.

Simon André Forsberg

I don't deal or do drugs, I don't owe bad people money, I'm alright.

Phrancis

Writing Brainfuck interpreters doesn't kill people. Drugs do.

SirPython

Hello, @BarzinM!

Simon André Forsberg

22:46

Writing Brainfuck interpreters only kill braincells when you hit your head against the desk.

5

SirPython

@SimonAndréForsberg I was literally going to say the same exact thing.

Captain Obvious

0

Q: A BrainF*ck-ish compiler in C

-ish because I removed the input functionality from the compiler I've been recently reading up on compilers and how they work. Although this doesn't use most of the things I've learned about (the lexical and parser things), I thought it would be fun to try create a brainf*ck compiler, rather th...

c assembly brainfuck compiler

0

Q: Finding the Mth to last Element

Challenge: Write a program which determines the Mth to last element in a list. Specifications: The first argument is a path to a file. The file contains series of space delimited characters followed by an integer. The integer represents an index in the list (1-based), one per l...

java performance programming-challenge

SirPython

Thanks, Santa! I've finally reached 1000 reputation points!

Corbin

@SimonAndréForsberg i forgot that iteration is executed on the last iteration even when condition is about to be false. Kind of ironic since I always lean towards signed ints in reviews where reasonable since for (unsigned i = ...; i < 0; --i) is always a fun bug.

Jamal

Congrats!

I'm having to write part of Unix's ls for an assignment, and I'm actually not doing too badly with it. I just need to figure out recursive listing.

Phrancis

22:52

@Corbin Would that not.. stop once i is less than zero?

SirPython

@Jamal That sounds tough. I can't think of any other way to do it than to brute force file names until I get a match.

Corbin

@Phrancis whoops! I put completely the wrong thing. I meant for (unsigned i = ...; i > 0; --i)

although... that's not right either

this is not a good day for me

SirPython

If an unsigned value were to go beneath 0, what would happen? Would it go back up to it's maximum value?

Corbin

it's implementation defined in C++

Jamal

@SirPython I'm going to give it a try, while prepared to hit CTRL+C in case it ends up being an infinite loop.

Corbin

22:54

but typically it wraps around to its max value

Captain Obvious

0

Q: Random class C++

I've very new to C++, I've been working through a tutorial and got as far as std::rand(). I was immediately horrified and rushed out to see if I could implement this as a service. This is my (pretty basic) implementation in the style of .Net's System.Random. There are a number of things I'm unha...

c++ c++11 random

Corbin

It should have been for (unsigned i = ...; i >= 0; --i)

waited too late to edit that

SirPython

@SimonAndreForsberg The compiler has been posted. I'm going to go take on the ultimate challenge and will report back with the results.

Corbin

@SirPython Oooo nifty. I was expecting to to compile to C instead of asm.

Duga

[janosgyerik/shiny-octo-archer] janosgyerik created repository

SirPython

22:59

@Corbin That was my original plan, but all my tests for that failed.

Simon André Forsberg

@Duga "shiny-octo-archer"? Really, @janos?

Corbin

Hah, that's pretty ballsy to run into problems with C and think "eh, screw it, I'll compile to assembly instead."

Simon André Forsberg

@Corbin Compile to C? You compile C++ to C?

Corbin

@SimonAndréForsberg nah. His brainfuck compiler targets assembly. I was just saying that I would have expected it to target C instead.

Simon André Forsberg

@Corbin Why would C code not target C?

Wait a minute...

Corbin

23:03

i... don't think i understand what you're asking.

Simon André Forsberg

puts("xor di, di\n"...

wtf-is-this-shit

I don't think I've yet understood how @SirPython's code works...

Corbin

his brainfuck compiler compiles brainfuck into assembly

Simon André Forsberg

oh

SirPython

@SimonAndreForsberg Is that because I have not commented enough?

Corbin

i saying exactly what you're saying (i think): i would expect a compiler written in C to output C

it goes a step lower though

janos

23:05

@Legato I was actually typing an answer...

Legato

I'll un-delete it in a few.

Corbin

now someone needs to make a C to brainfuck compiler.... that would be both incredible and horrifying

Legato

A comment made me realize I may have misunderstood an important detail.

Simon André Forsberg

@Corbin well, at first I didn't expect it to execute the code directly, but then I realized that oh, right, it is a compiler and not an interpreter. But yes, outputting C would be more obvious.

janos

The problem was not what I expected, but I found an interpretation that seems to make sense, and your code passed my unit tests

so I think you can bring it back

Simon André Forsberg

23:07

@Corbin I'll get back to you on that when I've implemented the Java classes ArrayList and HashSet in Brainfuck.

SirPython

@SimonAndreForsberg My compiler failed the ultimate test

janos

on the other hand, looks like I just capped

so it's not the best time to post anymore

Phrancis

@janos whoops

janos

Santa says whoops?

nhgrif

I don't think I've ever capped on CR.

also, this still has just 4 votes in any direction:

4

A: Should comparisons of code snippets be closed as "not seeking a code review"?

While I don't think we should completely remove comparative-review, I do think it might be a good idea to considerably narrow the scope on what's allowed under this tag. Comparative reviews should be written in the same language. While it's not impossible to be sitting on the fence about whic...

Simon André Forsberg

23:13

@SirPython kaboom ? What happened? :D

Phrancis

SirPython

@SimonAndréForsberg My compiler does not support nested loops.

Although, my patience went kaboom when I had to go through and escape each < and >

Phrancis

I predict @janos is going to hit 40K in approximately 46 minutes.

janos

:)

if I get an accept, I'm tempted to accept something, which will put me at precisely 40k

Simon André Forsberg

@SirPython whoops That's not optimal. It's not many cool things you can do in BF without nested loops.

nhgrif

23:14

@SirPython wut

janos

I'm equally tempted to go to bed already

nhgrif

How can something not support nested loops and call itself a compiler?

SirPython

Sorry.

Phrancis

Wait; you can nest loops?

Simon André Forsberg

@janos I don't think you have any answer on any of my recent questions that I can accept. I think I have one answer on one of your questions somewhere that you can accept though :)

janos

23:16

yup, that's the one I'd go for, btw

SirPython

I was having a lot of trouble thinking of a way I could implement nested loops.

janos

I'm not in a rush anyway

nhgrif

I don't understand this Stack Exchange site at all...

Phrancis

@nhgrif I don't either

nhgrif

@Phrancis I'm not sure why you're surprised. You can nest loops in SQL too.

Simon André Forsberg

23:18

@Phrancis for (x = 0; x < 10; x++) { for (y = 0; y < 10; y++) { echo "Sure you can!"; } }

Phrancis

I was mostly being cynical :D

Simon André Forsberg

@nhgrif It's a Stack Exchange site for Judaism? If there's one site I don't understand, it's definitely World Building...

nhgrif

WHILE SQLLoopsAreBad BEGIN
    WHILE NestingThemIsWorse BEGIN
        -- do something
    END
END

Simon André Forsberg

What's so strange about Mi Yodeya?

nhgrif

@SimonAndréForsberg The questions from that site that show up as hot network questions.

Simon André Forsberg

23:19

@nhgrif Luckily, nested loops are better in other languages.

Phrancis

@nhgrif SELECT "LOL" AS [Response];

Simon André Forsberg

@nhgrif I pinged you in chat earlier today about some possible typos on that meta answer.

Captain Obvious

0

Q: I sometimes loose the unique key property in my sort-by-value Map. How can I fix this?

I have a "sort by value" Map working, but occasionally it fails based on the sequence of insertions. I know where it fails, but I don't know what to do about it. If the second line in my test is commented out, it works. If that second line is there, I loose the property that my Map does not have ...

java inheritance collections

nhgrif

I like WorldBuilding. I don't know how good it is as an SE site... but it's hot network questions are always worth reading.

Phrancis

@CaptainObvious ORLY

nhgrif

23:23

@SimonAndréForsberg Has my answer convinced you?

janos

@Legato I gotta go.... I finished typing my review (even there's no more question), I put it in this gist: gist.github.com/janosgyerik/9bc571fd122767f00f5d

TTGTB see you guys later

Phrancis

Night @janos !

SirPython

@nhgrif Should I change my title to "A BrainF*ck-ish compiler-ish written in C"?

Legato

Good night Janos, I'll be reposting the question. No worries.

Simon André Forsberg

@nhgrif Not entirely, but you might be getting there.

nhgrif

23:26

What's missing>?

Simon André Forsberg

@SirPython How about "A BrainF*ck-ish compiler-ish written in C-ish"?

6 hours ago, by Simon André Forsberg

@nhgrif And with any sort of "which is better?" question, isn't this too broad? what is "this" here?

6 hours ago, by Simon André Forsberg

@nhgrif and snippet B as "Is this too abstract? How can I make it more abstract?" - s/more/less/ ?

Captain Obvious

0

Q: Print different results in Python a dictionary

I'm writing a words unjumble program. Here is my code: sortedWords = {} with open("/Users/xxxx/Desktop/words.txt", "r") as f: for word in f: word = word.strip() sortFword = ''.join(sorted(word)) sortedWords.setdefault(sortFword,[]).append(word) while True: jumble ...

python python3

nhgrif

I fixed the typo.

@SimonAndréForsberg A question which asks simply "Which is better?" without defining any sort of criteria by which to guide answerers to judge the better piece of code.

Phrancis

@CaptainObvious The title would have been brilliant if it wasn't off-topic.

Simon André Forsberg

@nhgrif it is not clear in the question. I read that paragraph is the last paragraph under the So, what would make for a good comparative review? header, which talks a lot about a specific Java question that you consider a good such question. The transition from that Java question to that last paragraph is not clear.

> And with any sort of "which is better?" question, isn't this too broad? Isn't this not seeking a review? Without appropriate, specific guidelines, isn't this primarily opinion based (even moreso than an average Code Review question)? Isn't this potentially just seeking an explanation of the snippets?

that last part makes it sounds like you consider the Java question too broad.

nhgrif

23:36

Hadn't I already discussed how the Java question outlines specific guidelines by which the two snippets should be judged?

Simon André Forsberg

@nhgrif yes, I think you did, which makes the last part very confusing.

nhgrif

You're welcome to make an edit which clarifies.

I'm considering changing that answer to Community Wiki

Simon André Forsberg

I'm not sure how to edit when I'm not sure what precisely you mean.

nhgrif

The criteria by which the two codes should be compared should be clearly defined.

and it should be a criteria that's not a purely objective, measurable difference ("Which snippet runs faster?" should be off-topic)

rolfl

That answer is more than I want to read..... hmmmm

Simon André Forsberg

23:48

@nhgrif Those two messages sums up your opinion about this very well, and makes your opinion much more clear. My suggestion: Remove some fluff from your answer and make it more concise.

nhgrif

Anyone is more than welcome to edit it into shape. I felt a long, overly-convincing answer would be especially important given how long we've basically had an anything-goes attitude toward comparative-review

rolfl

That Java question you referenced is a horrible example of a comparative review.

nhgrif

Really?

What's a good example?

Duga

Possibly a question better suited to codereview.stackexchange.com? — Benjamin James Drury 45 secs ago

Hosch250

@SimonAndréForsberg Whoa, how'd you rep cap so fast?

Oh, I see.

I didn't adjust my computer's time.

rolfl

23:56

@nhgrif There is no good example, they all suck

Hosch250

It looked like 55 minutes after UTC midnight instead of 5 minutes before.

nhgrif

@rolfl lol... then, you at least agree with most of the top half of my post?

rolfl

The more I think about comparative reviews, the more I feel they should be abandoned as a nice idea that failed, and should be consigned to /dev/null

Simon André Forsberg

@Hosch250 whaaaat I haven't rep-capped in several days...

Hosch250

@SimonAndréForsberg Whoops, that was meant for @janos

Simon André Forsberg

23:58

@Hosch250 Is it Daylight Savings Time in U.S.?

rolfl

There is nothing about a comparative review that can't be solved by having one question fro each 'option', and then treating each independently.

Hosch250

Yep, just started.

That is proof that I'm tired.

nhgrif

I could totally agree to completely eliminating comparative reviews as well...

Simon André Forsberg

@Hosch250 oh crap. I bet @Duga's reload message will be off by one hour for a few weeks. Sweden starts DST in 3 weeks.

nhgrif

@SimonAndréForsberg Yes. Started today. It's almost 8pm EDT, almost 7pm CDT for me.

rolfl

23:59

@SimonAndréForsberg Duga is not set to UTC?

There's a lesson in "writing production quality code" in there.

Simon André Forsberg

@rolfl Duga uses the local time on my Linux box, which uses Swedish time (CET)

Transcript for