The Daily WTF: Curious Perversions in Information Technology

Watson · 2012-08-28 Reply Admin

Tyler:
Except that this looks like PHP, in which case using more than one ternary produces unexpected results. http://www.phpsadness.com/sad/30

What is this "this" you refer to? Certainly not the submitted code.

2012-08-28 Reply Admin

Developers! Developers! Developers! <clap clap clap> Developers! Developers! Developers! http://youtu.be/8To-6VIJZRE

Cbuttius · 2012-08-28 Reply Admin

We actually have this line in our source code:

pvLegPInst.getFunctor().getFunctor().getFunctor().setScalar(scalingFactor);

hfrmobile · 2012-08-28 Reply Admin

D'oh!

I have no idea what this code should do (or should not do) ;-)

2012-08-28 Reply Admin

In Haskell this is a one-liner. We just use lens composition.

2012-08-28 Reply Admin

I get the intention of the code, but wouldn't it be much easier to simply return data?

2012-08-28 Reply Admin

Data data I don't love you you don't love me.....

dkf · 2012-08-28 Reply Admin

Cbuttius:
pvLegPInst

Gesundheit.

What is it with programmers and their insistence on abbreviating things enormously? The great vowel shortage is over! Twitter and SMS messaging are producing vast numbers of spare vowels for virtually nothing; there's no excuse for us to not take up this opportunity!

2012-08-28 Reply Admin

Data data data data Batman!

2012-08-28 Reply Admin

You ain't got no DATA if the frist data is null!

2012-08-28 Reply Admin

Why did nobody point out that the real WTF is the second if condition, which can never be true?

2012-08-28 Reply Admin

Huh?

Each condition is possible.

2012-08-28 Reply Admin

Wenn Fliegen hinter Fliegen fliegen, fliegen Fliegen hinter Fliegen her.

2012-08-28 Reply Admin

data data data LORE

2012-08-28 Reply Admin

mightybaldking:
Joey:
Holy hell, doesn't anyone use ternarys anymore? Gosh!
var srcData = data;
return data.data && data.data.data ? data.data.data : data.data ? data.data : data ? data : null;
That's just beautiful.

My God, it's full of data!

2012-08-28 Reply Admin

badger badger badger badger badger badger badger badger badger badger badger badger badger badger badger badger badger badger badger badger badger badger badger badger badger badger badger badger badger badger badger badger

2012-08-28 Reply Admin

Berend:
Badger badger.badger(); Badger badger = Badger badger + Badger badger; badger.badger.badger ? badger.badger : mushroom

I am amazed that that took 45 posts.:-)

2012-08-28 Reply Admin

[image]

An excellent waste of chickhen... and data.

2012-08-28 Reply Admin

^ A wtf in itself

Captcha: genitus - brilliant genitals

2012-08-28 Reply Admin

Malkovich malkovich malkovich, malkovich malkovich. Malkovich malkovich. Malkovich!

smxlong · 2012-08-28 Reply Admin

That can be simplified actually:

data = data.data ? data.data.data ? data.data.data : data.data : data;

2012-08-28 Reply Admin

Calling bullshit this was ever serious production code. Hell, even Javascript's Use Strict returns an error if you try to use data.data ferchrissakes.

2012-08-28 Reply Admin

Calling bullshit this was ever serious production code. Hell, even Javascript's Use Strict returns an error if you try to use data.data ferchrissakes.

2012-08-28 Reply Admin

shepd:
Gary. Gary! Gary gary, gary. HAHAHAHA GARY! Gaaaarrryyyy! No. Gary???
Also, 101 + 7 = 108.

You either played it, or you didn't.

As long as it wasn't 34. 34 was hell.

2012-08-28 Reply Admin

Berend:
Badger badger.badger(); Badger badger = Badger badger + Badger badger; badger.badger.badger ? badger.badger : mushroom

Is this the University of Wisconsin version? (On driving to an office across the street from their campus, the directions were literally "right on Badger, right on Badger, right on Badger and you're there...")

2012-08-29 Reply Admin

Herwig:
Wenn hinter Fliegen Fliegen fliegen, fliegen Fliegen Fliegen nach.

HDFDGF

2012-08-29 Reply Admin

A somewhat minor example from the system I used to support.

Sub SetProp(CardData, Alias, Value, DisplayValue)
Prop(CardData,Alias).Value("Value")=Value
Prop(CardData,Alias).Value("DisplayValue")=DisplayValue
End Sub

That's an internal language as far as I remember.

2012-08-29 Reply Admin

Any excuse to post this...

[image]

2012-08-29 Reply Admin

lol, thats just silly... perhaps then it should have been

String return; if(buffalo.buffalo.buffalo == Buffalo.buffalo.Buffalo) { return = buffalo.Buffalo.buffalo; } else { return = Buffalo.buffalo.Buffalo; } return return;

2012-08-29 Reply Admin

OK, so as we all know the original else if code can be written with the ternary operator as follows:

data = data.data && data.data.data ? data.data.data : data.data ? data.data : data;

I came up with three ways of rewriting it. This one most closely resembles the original code:

data = data.data && data.data.data || data.data || data;

This one looks deceptively similar:

data = data.data && (data.data.data || data.data) || data;

The subtle change makes it the easiest one to extend to add an additional level and/or null-check data:

data = data && (data.data && (data.data.data && (data.data.data.data || data.data.data) || data.data) || data);

This less readable alternative is the shortest I could come up with:

data = data.data ? data.data.data || data.data : data;

It is also amenable to a null-check:

data = data && data.data ? data.data.data || data.data : data;

CAPTCHA: a ratis eating my spaghetti code

2012-08-29 Reply Admin

Spam spam spam spam spam spam baked beans spam spam spam

2012-08-29 Reply Admin

You know, I think the REAL WTF isn't this code.

It's whatever it's getting it's input from, which apparently can't be consistent with whether it spews out [Object].data or [Object].data.data

This snippet actually strikes me as the work of an overworked programmer who late in the game discovered that sometimes their data source nests its data another layer deeper in the object it returns.

My point is, don't blame the poor bastard dealing with [Object].data.data, blame whoever cursed him with such crazy-ass and apparently inconsistent outputs to work with.

2012-08-29 Reply Admin

Hastur? Hastur Hastur. Hastur Hastur, Ha$#%$A%+++NO CARRIER

2012-08-30 Reply Admin

var srcMalkovich = malkovich;
if (malkovich.malkovich && malkovich.malkovich.malkovich) {
    malkovich = malkovich.malkovich.malkovich;
} else if (malkovich.malkovich) {
    malkovich = malkovich.malkovich;
}
 
if (!malkovich) {
    return;
}

2012-08-30 Reply Admin

Data, data. Data data? Data. Data! Data data data, data data… data.

... it's BACON!

CAPTCHA: luctus (came up in my text field prior entered list, hmmm... a CAPTCHA WTF?)

toshir0 · 2012-08-31 Reply Admin

causa:
Joey:
Holy hell, doesn't anyone use ternarys anymore? Gosh!
var srcData = data;
return data.data && data.data.data ? data.data.data : data.data ? data.data : data ? data : null;
Batman!

Fucking brilliant. (omg now i can't help humming it)

Santo subito ! / Feature this ! / whatever you use to declare something awesome...

2012-08-31 Reply Admin

big picture thinker:
Tyler:
Except that this looks like PHP, in which case using more than one ternary produces unexpected results. http://www.phpsadness.com/sad/30

Could be an old version of PHP. That blog is undated.

Might also have to do with the way they define TRUE and FALSE in PHP. Normally it should be:

#define FALSE 0 #define TRUE (!FALSE)

But this is not universal. I would suggest trying that test again with something more explicit like:
<?php echo (1 == 2 ? "a" : 1 == 2 ? "b" : "c")."\n"; echo (1 == 2 ? "a" : 1 == 1 ? "b" : "c")."\n"; echo (1 == 1 ? "a" : 1 == 2 ? "b" : "c")."\n"; echo (1 == 1 ? "a" : 1 == 1 ? "b" : "c")."\n"; ?>
Also, you could try using parentheses to enforce order of operation:
<?php echo (1 == 2 ? "a" : (1 == 2 ? "b" : "c"))."\n"; echo (1 == 2 ? "a" : (1 == 1 ? "b" : "c"))."\n"; echo (1 == 1 ? "a" : (1 == 2 ? "b" : "c"))."\n"; echo (1 == 1 ? "a" : (1 == 1 ? "b" : "c"))."\n"; ?>
I've used multiple stacked ternary expressions plenty of times in PHP with expected results.

Follow-up. I tested this just now and yes, the problem does still exist. The solution is to use the parentheses on each "sub" expression.

Since I always used parentheses in my ternary expressions anyway, I never realized that there were problems if you omit the parentheses. PHP makes me sad.

2012-09-02 Reply Admin

Malkovich, Malkovich! (reference)

2012-09-03 Reply Admin

This is called "code as data", you morons :)

2012-09-05 Reply Admin

ok, how do you like this one:


BOOST_FOREACH(const auto &point, inspectionPoints)
{
  if (point.first.first.first<=pos.first && point.first.second.first>=pos.first 
      && point.first.first.second<=pos.second && point.first.second.second>pos.second)
  { /*...*/

2012-09-05 Reply Admin

http://msdn.microsoft.com/en-us/library/3d6wt21y(VS.90).aspx Deployment in Visual Studio Property Property (Folders)

2012-09-06 Reply Admin

Kirjat:

ok, how do you like this one:


BOOST_FOREACH(const auto &point, inspectionPoints)
{
  if (point.first.first.first<=pos.first && point.first.second.first>=pos.first 
      && point.first.first.second<=pos.second && point.first.second.second>pos.second)
  { /*...*/

Basically lisp.

2012-09-18 Reply Admin

no need for var SrcData ? :)

2014-06-12 Reply Admin

I am Groot. I am Groot. I am Groot? I AM GROOT. I am GROOT! ...I am Groot.

2014-07-14 Reply Admin

Data? Tada!

2014-07-18 Reply Admin

Reading this made me sing the star wars theme song. Daataa data daataa data data

2020-03-14 Reply Admin

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Data? Data data. Data.

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