Coding blunders

[Mrcarrot]

Mine is KSP-related...

I should have checked the API...

But... here it is:

In a custom PartModule, I used OnUpdate() instead of a KSPEvent, and it ended up running a script to teleport your vessel every frame. Needless to say, the game was unplayable.

A lot of errors could probably be helped by looking at API docs and similar documentation... like trying to call OnGui() from an external script...

[linuxgurugamer]

31 minutes ago, kerbiloid said:

if (a = b) ...

This has caused more errors than I can shake a stick at

 

[kerbiloid]

9 minutes ago, linuxgurugamer said:

This has caused more errors than I can shake a stick at

Ok, then this one.

if (! isNotEqual(a, b) != false) ...

[linuxgurugamer]

Just now, kerbiloid said:

Ok, then this one.

if (! isNotEqual(a, b) != false) ...

That's just poor coding, not poor language design

[Green Baron]

As a casual C tinkerer i frequently have to use my fingers when it comes to check if a pointer meets the end of the data structure or not.

https://www.funnycleanjokes.com/how-to-shoot-yourself-in-the-foot-using-any-programming-language/

Edited March 1, 2018 by Green Baron

[Geonovast]

13 minutes ago, Green Baron said:

https://www.funnycleanjokes.com/how-to-shoot-yourself-in-the-foot-using-any-programming-language/

I read the ones for the languages I understand, and the Javascript one made me legitimately chuckle.

[Green Baron]

I recall this footshooting was much more funny in times of Fortran, CP/CMS, RPN, ...

RPN (reversed Polish notation):

foot

youself

shoot

you

[execute]

The high tech printer stamps a hole in the magnetic strip.

CP/CMS (IBM mainframe, 70s):

You write a 500 page documentation, attach your foot and the gun and send it down to the operators. 4 weeks later you get a letter stating that a bullet was mentioned in the docs but missing and your request could not be processed.

Fortran:

You can't shoot yourself because there is no foot, no gun and no bullet.

etc. pp.

:-)

Edited March 1, 2018 by Green Baron

[LordFerret]

...and here's where we come up with the old (reworked) "IBM Assembler Opcodes" list.

I used to have a copy of this hanging up on the wall at the office. Man, the flack I would get for it. I tell you, some people just have no sense of humor. Well, when you work for somebody else.....

http://ruthless.zathras.de/fun/top-secret/NewOpCodes.txt

[Nuke]

On 2/27/2018 at 9:32 PM, Shpaget said:

 

That sounds interesting.

Pretty much all the coding I do is various embeded devices we need for our small company. Since I'm not much of a programmer, I mostly play with Arduino stuff which has a lot of safety features built in, so what's the worst I've done in code? Probably forgot the pinMode (pin, OUTPUT), then spent hours debugging the hardware (which is also my design, so I'm thoroughly convinced that the problem is equally likely to be in either place). Not nearly as interesting as crashing an entire data center or something.

I'm much more proficient in destroying hardware, though.

i usually just talk to the registers directly at this point. "the arduino way" is nice to get started but eventually you look at the data sheet and figure you can do with 2 cycles what arduino can do in several. and you can scan an entire port at the same cost as checking a single pin. useful if you need high performance code. 

[IncongruousGoat]

Oh man, where do I start?

Well, here's a couple tidbits to get started. I'll be back with more whenever my code breaks next.

I was writing some FORTH the other day, and was trying to allocate an array of size cells. Instead of writing  create s_arr size cells allot, I wrote  create s_arr size allot. Let's not even go into how long it took me to figure out what was going wrong.

As part of the same project, I was fork/execve-ing a process in C and then piping some text to and from it. Everything was crashing horribly... and then I realized I was trying to read from the pipe that led to stdin, and write to the pipe that led to stdout. The stdin and stdout of the program I was piping to, that is. Pipes and forks, I swear...

 

Edited March 2, 2018 by IncongruousGoat

[Kernel Kraken]

This bit of python has tripped me up for weeks:

for I in range(200)

    print(I know what's wrong with this now I just forget to add a colon)

[StrandedonEarth]

On 3/2/2018 at 7:34 AM, LordFerret said:

http://ruthless.zathras.de/fun/top-secret/NewOpCodes.txt

ROFL 

Now whenever I see something claim to be Eco, i'm gonna think

"ECO ELECTROCUTE COMPUTER OPERATOR"

I'm not a coder, so I hafta ask, are those real codes with made-up definitions, or completely fiction?

[Green Baron]

17 minutes ago, StrandedonEarth said:

ROFL 

Now whenever I see something claim to be Eco, i'm gonna think

"ECO ELECTROCUTE COMPUTER OPERATOR"

I'm not a coder, so I hafta ask, are those real codes with made-up definitions, or completely fiction?

Assembler Menmonics which should exist ;-)

Not real, but very funny :-)

CBNC   Close, but no cigar ....

Edited March 3, 2018 by Green Baron

[LordFerret]

@StrandedonEarth, as @Green Baron points out - not real.

Here's sample of the real deal...
http://ref.x86asm.net/coder32.html

Back in the day (when I was young), I used to dream 8 and 16 bit opcode stuff in my sleep... remnants of the day's work... and wake up with answers! My GF used to get mad at me (HoneyDo) because I'd be walking around telling her 'NOP NOP NOP'.

 

PS - My personal favorite was always 'HCF' ..... oh if only ..........

[radonek]

Back in the day, we used to have whiteboard with "Reversed condition club" scoretable. Once in a while, somebody would start swearing loud, then stand up and slowly, with dignity of condemned, walk up to the table to add a point by his name. It was a very special club :-)

[Akagi]

The time, in Scratch, when I mistyped a single variable - "Kaag" instead of "Kaga" and broke the entire ship-operation system of the still-in-dev Kidou Butai - 1941 military sim.

[Akagi]

That was to determine the position of IJN Kaga

[cubinator]

I think I was trying to make a 9x1 array in MATLAB, and normally the syntax for that would have been a colon 9:1. But the thing I was using to create the array was a function, which uses a comma because you're inputting variables, not array indices. So I was ending up with a 9x8x7x6x5x4x3x2x1 array

[Piatzin]

Anyone here know Python? I learned some basic stuff with lists and loops last semester and I loved it.

[AtomicTech]

2 minutes ago, Earthlinger said:

Anyone here know Python? I learned some basic stuff with lists and loops last semester and I loved it.

I might, why do you need it?

[Piatzin]

Just now, AtomicTech said:

I might, why do you need it?

Oh, no reason, just for reconnaissance purposes....

[Lisias]

4 minutes ago, Earthlinger said:

Anyone here know Python? I learned some basic stuff with lists and loops last semester and I loved it.

Pretty much, it's a cornerstone on some systems at dayjob.

Also, it's what I use on my KSP config lint!

[AtomicTech]

1 minute ago, Earthlinger said:

Oh, no reason, just for reconnaissance purposes....

Okay, what's the request?

[Piatzin]

Just now, AtomicTech said:

Okay, what's the request?

You misunderstood. I don't need anything, I'm just being nosy

[SkyFall2489]

Learning to code.

 

Actually, probably all the times I messed up some curvy bracket in an MM patch.

Or, maybe when I used used python's dict.has_key(), not realizing that it had been deprecated for a long time. Had to go and replace every one...