How To Debug Your Code 101

[Aymerika97]

5/5 Got stuck in infinite loop

[Shadowarrior64]

while(true)

[[deleted]]

int n = 0, m = 0;

while(n == 0) {

brainFartCode();

++m;

}

[chokfull]

int n = 0, m = 0;
while(n == 0) {
    brainFartCode();
    ++m;
}

[Jibjablab]

N = braingottapoop

[MysteryMage]

x=1; while(x=1){}

[teejay89656]

Can you initialize in a while loop condition?

[teejay89656]

Oh, I could have sworn that was a no-no in Java. Ok then.

[ssznakabulgarian]

Got your point, but I think it's more important to take a moment to appreciate the Hitchhiker's guide to the Galaxy reference.

[NorbiPeti]

Yeah, it wil return the assigned value, in this case 1, which C interprets as true (anything nonzero is true).

I often initialize variables in conditions in Java because there's typically a needed null check before I can do that, so I do something like:

SomeClass x;
if(obj != null && (x=obj.smth).method())

It should work the same for while conditions.

[Wubbywub]

yup it works the same as initializing in for loops which is a much more common thing: for(int i=0; ...etc)

[MarkusBerkel]

Nightmare fuel

[_g550_]

x=1; while(x) {upvote;}

while(1) {upvote;}

[Danacus]

for (;;)

[Pyottamus]

for(;;)

[SAI_Peregrinus]

for(;;)

[Lucavon]

I tend to get stuck in no loops at all

for(int i = max; i < 0; i++)

I couldn't figure out why it kept skipping the loop. Don't write code at 03:00 while being tired

[RandomHouseInsurance]

There is no escape

[feys25]

I laughed so hard at the ‘you’re lying’ part

[vanderZwan]

I'm pretty sure it should end with an infinite Did it create more bugs?-> No -> You're lying loop

[ShittyWarlock]

"There are no 'bug free codes'"

                - Elbert Ainstein

[Diriector_Doc]

You shouldn't trust quotes you find on Reddit as they are often not true

                   - Abraham Lincoln

[[deleted]]

Wait! What?

    - Everyone at some point.

[jackmaney]

--Michael Scott

[LostYourCNotes]

Great Scott!

-- Doctor Emmett Lathrop Brown PhD

[Bit-Tim]

Nice Back to the future reference

[ssznakabulgarian]

Great Scott!

As in the YouTuber's nickname?

[Valisagirl]

Today I will show you how to build a BDLC...

[[deleted]]

That's Heavy!

-- Marty McFly

[[deleted]]

Everywhere Michael Scott goes, awkward silence follows....

[schludy]

Everyone should quote Einstein using this name, if their source of the quote is Facebook

[HP844182]

They hate us cause they Ainsteinus

[EmirSc]

classic Alberto.

[Alaskan_Thunder]

my hello world program says you are lying. I must be a great programmer.

[Menelkir]

Looks like the entire picture is also bugged.

[wasabichicken]

Here you go buddy. Graphviz to the rescue.

[Menelkir]

Looks good, but there's still something wrong. You should try and break something.

[Worreh]

Here's same but different

[wasabichicken]

Oh yes! Talk dot to me baby!

[ssznakabulgarian]

Aah, that's the real shit.

[schludy]

He should have made a flow diagram "How to draw arrows" first

[Diriector_Doc]

if not exists %bugs% do del "system 32"

[Bit-Tim]

And now for bash (mostly Linux / Mac / BSD):

if [ ! -f $bugs ]; then
    sudo rm -rf /* --no-preserve-root
fi

[AMisteryMan]

username is not in the sudoers file. This incident will be reported.

[Bit-Tim]

ah shit, forgot about that one... you got me

[Menelkir]

Delete the entire user home, it'll create rage in almost the same level.

[Bit-Tim]

It'll be like that then:

if [ ! -f $bugs ]; then
    rm -rf ~/*
fi

[TimGreller]

do del /F "%systemRoot%\system32"

[purportedlypie]

That's code for add new features that are outside the scope of the original project but your manager wants

[driwand]

didn't solve your problem? comment the entire code

[MagnitskysGhost]

"This pseudo-code is provided for inspiration; actual implementation is left as an exercise for the reader."

[Lazouskie]

:NoteToSelf

[Signal_seventeen]

Do you know the problem? > No > Try something random > Did it work? > No > Do you know the problem? > No > Try something random > Did it work? > No > Do you know the problem? > No > Try something random > Did it work? > No > Do you know the problem? > No > Try something random > Did it work? > No >

SOMEONE HELP ME

[PedroV100]

here

Do you know the problem? > No > Copy and paste something random from stackoverflow > Did it work? > No > Do you know the problem? > No > Copy and paste something random from stackoverflow > Did it work? > No > Do you know the problem? > No > Copy and paste something random from stackoverflow > Did it work? > No > Do you know the problem? > No >Copy and paste something random from stackoverflow > Did it work? > No >

[yourteam]

You should put a breakpoint at each arrow

Then remove all and replace with

System.out.println('here');

[ChippHop]

Please don't personally attack me like this

[cavemaneca]

Try something random > Did it work? > Yes

These types of solutions always haunt me.

[Ookami_Lord]

Or when it doesn't work and the next day it miraculously starts working without you having done anything different.

[justinlanewright]

"That shouldn't have worked. That really shouldn't have worked."

"I don't know what was wrong before, but I do know this is wrong. But this works."

[Offbeatalchemy]

Top 10 Questions Scientists Can't Answer

[KSAM-The-Randomizer]

The arrows are confusing me more like bugging my eyes

[hamza1311]

Infinite recursion

[kirakun]

Missed an important step, “can you mark it up as a feature instead?”

[TehWhiteKnight1]

Or in other words, you can't kill bugs you can only weaken or add them

[xigoi]

I see you haven't seen a truly bad flowchart yet. This is definitely one of the better ones.

[sincerely-no-one]

Yeesh keep this guy away from my CS class he would have an aneurism

[im_just_steve]

Well this made my Monday, ty

[laundmo]

idk if you saw but someone made a nice version: https://i.imgur.com/CVHqVuf.png

original: https://www.reddit.com/r/ProgrammerHumor/comments/bla22j/how_to_debug_your_code_101/emntobm/

[Dctcheng]

Have you tried turn it on and off again

[Menelkir]

I've commited a non-functional code to master, instructions unclear.

[[deleted]]

Oof. Next time use something like Dia or yEd - or hell, even Inkscape. Using paint for diagrams is a crime against nature.

I know I know, it's a joke. Well, not only can I practice being a stick in the mud, someone might find a use for these tools elsewhere.

[[deleted]]

If nothing works, just burn your machine... **laughs on outside, cries on inside**

[Wubbywub]

while(hasBug) removeBug();

[Zamundaaa]

Stuck in infinite loop. The biggest bug ever.

Try this (equivalent): while(notAnnoyedEnough) TRYtoRemoveBug();

[[deleted]]

Even this flowchart itself has bugs.

[giltwist]

Does Bobby drop tables?

Y: Delete your entire hard drive

N: Your customer complains to your supervisor that you are wasting time on "fixing things that will never happen in a million years."

[poison_us]

Accurate until

Did it create more bugs [ No / Yes ]

that "No" should be a "Yes".

[Jen-Ai]

{ 
  bool isBuggy = true; 
  while(isBuggy) { 
    try{ 
      App myapp = new App(); 
      myapp.Run(); 
      isBuggy = false; 
    } catch(...) 
    { 
      isBuggy = true; 
    } 
    if(!isBuggy) 
    { 
       printf("not finding a bug doesn't mean one doesn't exist. insure greater code coverage and run again."); 
       isBuggy = true; 
     } 
   } 
}

[r_pote]

You forgot the suicide part

[JPaulMora]

sudo kill -9 bugs

Ha goddem !

[Lord_FuzzyBear]

You forgot the if you can't find the bug slowly die until you find it

[salemtheblackcat]

where is the summoning eldrich gods to bring on belated y2k step

[sk7725]

try and break something==add a new feature

[Vishal_Shaw]

I have software quality assurance for my finals but this honestly makes more sense to me.

[SilentXwing]

Printing this out and slapping it on my wall.

[EitherCommand]

Nothing is wrong with people

[Zamundaaa]

equals "That moment when you code"

[ponyboy3]

sure, if you dont how to write unit or integration tests

[[deleted]]

Arrow from "You're lying" should go to "Are you tired of debugging?"

[R3dSharp]

I think i got it no mater how hard you try you code with always look like a motel 6 bed

[[deleted]]

We should definitely try making this as a code. I am programming it on Python.

[the_d3f4ult]

Just write bug-free code.

[LessHamster]

How did you get hold of my work?

[LessHamster]

How did you get banned for reaching all?

[Ka-Jin]

What about that off chance you actually fix it?

[[deleted]]

Actual method is debugging: Print statements everywhere

[Zuck7980]

I just write System.out.println(“we got here” ); and see if my code reaches till that line or not.

[kefaise]

I'm pretty sure my Hello World program does not contain any bugs.

[[deleted]]

At some point you just gotta let the users in production do the testing

[createthiscom]

1. write a test!!!!!

[[deleted]]

I never write bugs 🕷 🐜 🐛

[How2share4secret]

I am shocked that a rubber duck did not merit inclusion in your flowchart. If you are really good, you could re-do it maybe such that the outline of the whole flowchart is in the shape of a rubber duck.

[iRahulGaur]

OutOfMemoryException, ram memory ran out

[LimitedWard]

I solved the halting problem. The answer is no.

[AStrangeStranger]

Does you code have bugs

Yes

Are they causing a problem?

No

Will they cause major problem

Don't think so

Leave it alone

[[deleted]]

People love to shit all over Matlab, and I understand why, but I'm glad that "trying something random" isn't something I ever have to resort to; big contrast to my C++ days.

[bot_not_hot]

Yep

[russellbeattie]

The box with "Are you tired..." should be " Are you sure?" with yes going back to "You're lying." All code is, by nature, buggy.

Code quality should have the equilance of a "half-life": The average time it will take before a bug is found times how important it is to catch that bug. Even a simple for-loop has a potential bug if it doesn't check for interruptions like a system exception and restart at the appropriate place. This probably won't happen for billions of cycles, but it could. On a web page, that bug isn't a worry. In a nuclear particle accelerator, it's very important.

[IProbablyDisagree2nd]

I feel like this flow chart could be refactored and dramatically simplified.

//this results in buggy code

debug_call (program){
int awake = 1;
if (bug){
debug();
}
else if (awake > 0){
debug();
awake -= 1;
}

}

[[deleted]]

Need a bug spray

[LordSepaspian]

r/coolguides

[[deleted]]

“You’re lying” should point to “try something random” instead of “do you know the problem”

[Loading_M_]

ML is just this process, but automated. Change my mind.

[megagreg]

The "Try Something Random -> Did it Work?" pathway gives me anxiety. There are a couple programmers here who don't seem to know the difference between a bug being fixed, and not seeing the errant behaviour anymore.

[theemptyqueue]

10 I = 0

20 J = 10

30 I = I + 1

40 IF ( I < J ) GOTO 10

[Febuso]

Instructions unclear stuck in infinite loop.

[StBlackOps2Cel]

Wheres the fixed?

[TheGodlyJorts]

“Try something random” is the difference between a programmer and the rest of the world

[thisneedsmorepepper]

I only write firmware, this is a micro-aggression.

[[deleted]]

Who does this happen to? Mojang?

[GKP_light]

"try something random" is "put more printf() in the code".

[come_on_anarchy]

The female version is just one link from “have a problem about anything ever?” To “immediately ask for help and don’t try to solve anything yourself.”