Nature In Its Volatility |
About two years ago, we took a little trip to the Galapagos- a tiny, isolated island where processes and coding practices evolved… a bit differently. Calvin, as an invasive species, brought in new ways of doing things- like source control, automated builds, and continuous integration- and changed the landscape of the island forever.
Or so it seemed, until the first hiccup. Shortly after putting all of the code into source control and automating the builds, the application started failing in production. Specifically, the web service calls out to a third party web service for a few operations, and those calls universally failed in production.
Now, Hank, the previous developer and now Calvins supervisor, I thought you said this should make our deployments more reliable. Now, we got all these extra servers, and it just plumb dont work.
Were changing processes, Calvin said, so a glitch could happen easily. Ill look into it.
Looking into it was a bit more of a challenge than it should have been. The code was a pasta-golem: a gigantic monolith of spaghetti. It had no automated tests, and wasnt structured in a way that made it easy to test. Logging was nonexistent.
Still, Calvins changes to the organization helped. For starters, there was a brand new test server he could use to replicate the issue. He fired up his testing scripts, ran them against the test server, and… everything worked just fine.
Calvin checked the build logs, to confirm that both test and production had the same version, and they did. So next, he pulled a copy of the code down to his machine, and ran it. Everything worked again. Twiddling the config files didnt accomplish anything. He build a version of the service configured for remote debugging, and chucked it up to the production server… and the error went away. Everything suddenly started working fine.
Quickly, he reverted production. On his local machine, he did something hed never really had call to do- he flipped the build flag from Debug to Release and recompiled. The service hung. When built in Release mode, the resulting DLL had a bug that caused a hang, but it was something that never appeared when built in Debug mode.
I reckon youre still workin on this, Hank asked, as he ambled by Calvins office, thumbs hooked in his belt loops. Im sure youve got a smart solution, and I aint one to gloat, but this aint never happened the old way.
Well, I can get a temporary fix up into production, Calvin said. He quickly threw a debug build up onto production, which wouldnt have the bug. But I have to hunt for the underlying cause.
I guess I just dont see why we cant build right on the shared folder, is all.
This problem would have cropped up there, Calvin said. Once we build for Release, the problem crops up. Its probably a preprocessor directive.
A what now?
Hanks ignorance about preprocessor directives was quickly confirmed by a search through the code- there was absolutely no #if statements in there. Calvin spent the next few hours staring at this block of code, which is where the application seemed to hang:
public class ServiceWrapper
{
bool thingIsDone = false;
//a bunch of other state variables
public string InvokeSoap(methodArgs args)
{
//blah blah blah
soapClient client = new Client();
client.doThingCompleted += new doThingEventHandler(MyCompletionMethod);
client.doThingAsync(args);
do
{
string busyWork = "";
}
while (thingIsDone == false)
return "SUCCESS!" //seriously, this is what it returns
}
private void MyCompletionMethod(object sender, completedEventArgs e)
{
//do some other stuff
thingIsDone = true;
}
}Specifically, it was in the busyWork loop where the thing hung. He stared and stared at this code, trying to figure out why thingIsDone never seemed to become true, but only when built in Release. Obviously, it had to be a compiler optimization- and thats when the lightbulb went off.
The C# compiler, when building for release, will look for variables whose values dont appear to change, and replace them with in-lined constants. In serial code, this can be handled with some pretty straightforward static analysis, but in multi-threaded code, the compiler can make mistakes . Theres no way for the compiler to see that thingIsDone ever changes, since the change happens in an external thread. The fix is simple: chuck volatile on the variable declaration to disable that optimization.
volatile bool thingIsDone = false solved the problem. Well, it solved the immediate problem. Having seen the awfulness of that code, Calvin couldnt sleep that night. Nightmares about the busyWork loop and the return "SUCCESS!" kept him up. The next day, the very first thing he did was refactor the code to actually properly handle multiple threads.
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Метки: Feature Articles |
CodeSOD: Synchronized Threads |
Tim was debugging one of those multithreading bugs, where there appeared to be a race condition of some kind. The developer who had initially written the code denied that such a thing could exist: Its impossible, I used locks to synchronize the threads!
Well, he did use locks at the very least.
///
/// Performs the synchronisation
///
/// Current state
private void Synchronize(object state)
{
// Take care that this can only run in one thread at a time
var lockThis = new Object();
lock (lockThis)
{
//…code…
}
}There is of course, one problem. The object you use for the lock needs to be shared across threads. This is less a lock in the sense of an air lock and more a lock in the sense of a complete hull breach .
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Метки: CodeSOD |
Tales from the Interview: The 5% Candidate |
There are many kinds of jackasses in this world, from the pretentious prick to the smug cynic. Each has their own flavor of awfulness, their own way of making you hate not only them but the entire world that gave birth to them. This story is about one kind of jackass in particular, perhaps the most classic flavor: the man so sure of his own greatness that he becomes enraged at the world whenever it fails to bow before his massive intellect.
You see these people a lot on Twitter these days. With self-righteous fury, they demand that you get with the program and acknowledge their clear superiority. But as obnoxious as they are online, they're worse in person ... especially if they turn up at your job interview.
Today's candidate applied for a job at a government IT department. Unlike stories you've seen on this site before, this government shop was actually fairly efficient and pleasant to work for. They were hiring Java developers, preferably ones that also had UI and database skills. As such, they had over 100 CVs to skim through for their first 2 positions. After removing those written in crayon, with massive coffee rings obscuring the text, or which had return addresses in prison, they were able to narrow the field to a mere 30, but it was still far more candidates than they wanted to interview in a few short days.
But interview they did. At 10 candidates a day, they barely had time to weed through people; however, it didn't take long to eliminate most of the candidates. Some lacked a basic understanding of computers, such as how to launch applications when they're not strewn across the desktop. Others lacked a basic understanding of programming, being entirely unable to tell Java apart from Microsoft Word. Still others—disturbingly many others—lacked a basic understanding of hygiene.
For Round 2, they decided only to work with agencies they'd had firsthand experience with, either from that office or from previous companies. They also put together a quick "sniff test" to filter the wheat from the chaff. This 30-minute test checked for basic logic skills, including some open-ended CS questions and Java code to debug. They were looking more for the explanations behind the answers than the answers themselves, hoping to get some idea of how these people reasoned.
It worked like a charm. Those who scored under 50% were always appalling in the interview, and those who scored highly were always at worst acceptable. They quickly found their candidates. When it came time to fill the next junior opening, the decision was unanimous: they would use the sniff test as a screen, refusing to interview anyone who failed.
Enter The Architect, our aforementioned jackass. This guy seemed pretty good on paper: "10 years experience in infrastructure architecture, design patterns, certifications, and software development practices" according to his cover letter. Applying for a junior role was a bit odd for this veteran, to be sure, but they gave him the test anyway.
And boy, did he fail. His final score was a mere 5%. Every answer included a tirade about how the question was wrong. Every. Single. One.
Some of you may not believe this man exists. But some of you have met him, or one of his many counterparts the world over. This is the man who, when faced with a question like:
Linked List, Binary Tree, Stack and Queue - describe a simple program to read in a million names and output them in reverse order using one of the above structures.
Writes an answer like:
Seriously??? I wouldn't use any data structures. I'd use a database. Thats what there there for. Man you need a rethink!!!
Or when faced with this simple logic test:
What's the missing sequence: 2, 4, 8, __, 32 1, 3, 9, 27, __
Replies:
2, 4, 8, 10, 32 You've missed out 6, 12, 14, 16, 18 etc. This is unacceptable for a test at this level. Are you sure you want people of my caliber here? Sort it out please!!!
Those who've had the misfortune of meeting someone like this know what comes next, but I'll relate it anyway.
The exam was graded and laughed at. The interviewer went into the room to tell the man he just "wasn't the right fit."
The man exploded with rage: screaming obscenities, wishing death and destruction upon the interviewer, the business, the whole city. He refused to leave until they offered him the job. It took 3 people plus the security team to escort him out of the building, and even then he wouldn't go until they threatened to call the police.
Somewhere out there, there is a blog in which this agency is lambasted up and down for its poor hiring practices. It probably goes on a scathing rant, estimating (too highly) how much of "MY TAXES!!!!" this man pays to support these "incompetent" developers who "wasted MY time!" with their "bullsh!t interview". Maybe it even theorizes that taxes themselves are illegal, as the man proudly declares himself a "sovereign citizen".
Thankfully, you are reading The Daily WTF and not this man's blog. In fact, I'd dare say nobody is visiting this man's blog. That's probably why he's so very angry in the first place.
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Метки: Tales from the Interview |
Representative Line: Groovy Typing, Man |
Groovy was one of those programming languages that spent about six months as the trendy language du jour, and I havent heard much about it since. If I were to learn it, Id want to learn by example- going through real-world Groovy code and seeing how it works.
An anonymous submitter has provided one sample for me to learn from:
List items = new ArrayList(Arrays.asList(data.split(",")))
String itemOne = items[2].toString() It reminds me of those Family Circus comics where little Billy would wander the entire city to get from the front yard to the back yard.
It does indeed. And certainly, the type conversions are definitely the long way around: String -> String[] -> List. But more than anything else, its the second statement that really gets me.
String itemOne = items[2].toString()
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Метки: Representative Line |
Error'd: The Things That Should Not Be |
"I tried to export my game to HTML5, but I guess it just wasn't meant to be," Edward W. writes.
Tom H. wrote, "I guess the build server never saw that memo."
"I love going out to dinner with my friend null null," writes Adam R., "She never steals any of my food!"
Mike C. wrote, "Sorry JIRA, all the keys on my keyboard are defined."
"You guys! I caught an error! 🎣 🎣" writes Nick.
Hamakei asks, "Never mind who's watching the Watchmen...who helps the helpers?"
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https://thedailywtf.com/articles/the-things-that-should-not-be
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Метки: Error'd |
Table 12 |
We've all encountered database tables that look like this:
ID Data ----- -------------------------------------------- 00001 TRUE, FALSE, FILE_NOT_FOUND 00002 MALE|FEMALE|TRANS|EUNUCH|OTHER|M|Q|female|Female|male|Male|$ 00003- 00004 1234|Fred,Lena,Dana||||||||||||1.3DEp42|
...
Oh the joy of figuring out what each field of each row represents. The fun of deciphering the code that writes and reads/parses each row of data. In a moment, you will fondly look back on that experience as the Good-Old-Days.
The task of administering elections in the Great White North is handled by the appropriately-named agency Elections Canada. As part of their mandate, they provide the results of past elections in granular detail, both as nicely formatted web pages and as downloadable raw files. The latter are meant to be used by researchers for studying how turnout varies across provinces, ages, races, etc., as well as arguing about the merits of proportional representation versus single transferable votes; and so forth.
One of the more comprehensive data files is descriptively known as Table-Twelve, and it contains a record for every candidate who ran in the election. Each record contains how many votes they got, the riding (electoral district) in which they competed, their affiliated party, home town, occupation, and hundreds of other details about the candidate. This file has been published for every election since the 38th general in 2004. Vicki was charged with creating a new parser for this data.
Table-Twelve is a CSV file in the same way that managers describe their new agile process as . While parsing a CSV file in general is no big deal, writing a function to parse this data was far harder than she expected. For one thing, the column titles change from year to year. One might think Who cares, as long as the data is in the same sequence. One would be wrong. As an example, depending upon the year, the identifier for the electoral district might be in a column named "Electoral District Name", "Electoral District" or "District", and might contain a string representing the district name, or a numeric district identifier, either of which may or may not be enclosed in single or double quotes. Just to make it interesting, some of the quoted strings have commas, and some of the numbers are commafied as well.
Further inspection revealed that the columns are not only inconsistently named, but named so as to be completely misleading. There's a column labeled "Majority". If you're thinking that it contains a boolean to indicate whether the candidate got a majority, or 50%+1 of the number of cast votes (i.e.: "How many votes do you need for a majority?"), you'd be mistaken. Nor is it even a slight misuse (where it should have been "Plurality"). Instead, it's the delta between the winning candidate and the second-place candidate in that riding. They also helpfully give you the quotient of this delta to the total cast votes as the "Majority Percentage".
Canada has a parliamentary system; it's also important to know how many candidates of each party won, so the party designation is obviously going to be easy to access, right? Or maybe you'd like to sort by surname? Well, it turns out that the party is appended to the field containing the candidate's name, delimited with a single space (and possibly an asterisk if they were incumbent). But the candidate's name and the party are already each a variable number of words (some have middle names or two surnames) delimited by single spaces. The party name, however, must be given in both English and French, separated by a forward slash. Of course, some parties already have a slash in their name! Oh, and if the candidate didn't run as a member of a party, they might be listed as "Independent" or as "No affiliation"; both are used in any given file.
Above and beyond the call of making something difficult to parse, the files are full of French accented text, so the encoding changes from file to file, here ISO-8859, there UTF-8, over there a BOM or two.
Don't get me wrong, I've written parsers for this sort of garbage by creating a bunch of routines to do trivial parsing and using them for larger logical parsers, and so on until you can parse all of the fields in an entire row, and all the special cases that spew forth. But the files they were supposed to parse were consistent from one day to the next.
Vicki is considering pulling out all of her hair, braiding it together and using it to hang the person who designed Table-Twelve.
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Метки: Feature Articles |
CodeSOD: The Nuclear Option |
About a decade ago, Gerald worked at a European nuclear plant. There was a minor issue where a controller connected to a high-voltage power supply would start missing out on status messages. Minor , because it didnt really pose a risk to life and limb- but still, any malfunction with a controller attached to a high-voltage power supply in a nuclear power plant needs to be addressed.
So Gerald went off and got the code. It was on a file share, in a file called final.zip. Or, wait, was it in the file called real-final.zip? Or installed.zip? Or, finalnew.zip?
It took a few tries, but eventually he picked out the correct one. To his surprise, in addition to the .c and .h files he expected to see, there was also a mysterious .xls. And thats where things went bad.
Pause for a moment to consider a problem: you receive a byte containing an set of flags to represent an error code. So, you need to check each individual bit to understand what the exact error is. At this point, youre probably reaching for a bitshift operator, because thats the easiest way to do it.
I want you to imagine, for a moment, however, that you dont really know C, or bitwise operations, or even what a bit is. Instead, you know two things: that there are 255 possible error codes, and how to use Excel. With those gaps in knowledge, you might perhaps, just manually write an Excel spreadsheet with every possible option, using Excel's range-drag operation to fill in the columns with easily predictable values. You might do this for 254 rows of data. Which, as a note, the range of possible values is 255, so guess what was causing the error?
if (variable== 0 ) { a= 0 ; b= 0 ; c= 0 ; d= 0 ;e= 0 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 1 ) { a= 1 ; b= 0 ; c= 0 ; d= 0 ;e= 0 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 2 ) { a= 0 ; b= 1 ; c= 0 ; d= 0 ;e= 0 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 3 ) { a= 1 ; b= 1 ; c= 0 ; d= 0 ;e= 0 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 4 ) { a= 0 ; b= 0 ; c= 1 ; d= 0 ;e= 0 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 5 ) { a= 1 ; b= 0 ; c= 1 ; d= 0 ;e= 0 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 6 ) { a= 0 ; b= 1 ; c= 1 ; d= 0 ;e= 0 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 7 ) { a= 1 ; b= 1 ; c= 1 ; d= 0 ;e= 0 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 8 ) { a= 0 ; b= 0 ; c= 0 ; d= 1 ;e= 0 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 9 ) { a= 1 ; b= 0 ; c= 0 ; d= 1 ;e= 0 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 10 ) { a= 0 ; b= 1 ; c= 0 ; d= 1 ;e= 0 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 11 ) { a= 1 ; b= 1 ; c= 0 ; d= 1 ;e= 0 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 12 ) { a= 0 ; b= 0 ; c= 1 ; d= 1 ;e= 0 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 13 ) { a= 1 ; b= 0 ; c= 1 ; d= 1 ;e= 0 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 14 ) { a= 0 ; b= 1 ; c= 1 ; d= 1 ;e= 0 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 15 ) { a= 1 ; b= 1 ; c= 1 ; d= 1 ;e= 0 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 16 ) { a= 0 ; b= 0 ; c= 0 ; d= 0 ;e= 1 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 17 ) { a= 1 ; b= 0 ; c= 0 ; d= 0 ;e= 1 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 18 ) { a= 0 ; b= 1 ; c= 0 ; d= 0 ;e= 1 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 19 ) { a= 1 ; b= 1 ; c= 0 ; d= 0 ;e= 1 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 20 ) { a= 0 ; b= 0 ; c= 1 ; d= 0 ;e= 1 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 21 ) { a= 1 ; b= 0 ; c= 1 ; d= 0 ;e= 1 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 22 ) { a= 0 ; b= 1 ; c= 1 ; d= 0 ;e= 1 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 23 ) { a= 1 ; b= 1 ; c= 1 ; d= 0 ;e= 1 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 24 ) { a= 0 ; b= 0 ; c= 0 ; d= 1 ;e= 1 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 25 ) { a= 1 ; b= 0 ; c= 0 ; d= 1 ;e= 1 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 26 ) { a= 0 ; b= 1 ; c= 0 ; d= 1 ;e= 1 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 27 ) { a= 1 ; b= 1 ; c= 0 ; d= 1 ;e= 1 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 28 ) { a= 0 ; b= 0 ; c= 1 ; d= 1 ;e= 1 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 29 ) { a= 1 ; b= 0 ; c= 1 ; d= 1 ;e= 1 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 30 ) { a= 0 ; b= 1 ; c= 1 ; d= 1 ;e= 1 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 31 ) { a= 1 ; b= 1 ; c= 1 ; d= 1 ;e= 1 ;f= 0 ;g= 0 ;h= 0 ;}
if (variable== 32 ) { a= 0 ; b= 0 ; c= 0 ; d= 0 ;e= 0 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 33 ) { a= 1 ; b= 0 ; c= 0 ; d= 0 ;e= 0 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 34 ) { a= 0 ; b= 1 ; c= 0 ; d= 0 ;e= 0 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 35 ) { a= 1 ; b= 1 ; c= 0 ; d= 0 ;e= 0 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 36 ) { a= 0 ; b= 0 ; c= 1 ; d= 0 ;e= 0 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 37 ) { a= 1 ; b= 0 ; c= 1 ; d= 0 ;e= 0 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 38 ) { a= 0 ; b= 1 ; c= 1 ; d= 0 ;e= 0 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 39 ) { a= 1 ; b= 1 ; c= 1 ; d= 0 ;e= 0 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 40 ) { a= 0 ; b= 0 ; c= 0 ; d= 1 ;e= 0 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 41 ) { a= 1 ; b= 0 ; c= 0 ; d= 1 ;e= 0 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 42 ) { a= 0 ; b= 1 ; c= 0 ; d= 1 ;e= 0 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 43 ) { a= 1 ; b= 1 ; c= 0 ; d= 1 ;e= 0 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 44 ) { a= 0 ; b= 0 ; c= 1 ; d= 1 ;e= 0 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 45 ) { a= 1 ; b= 0 ; c= 1 ; d= 1 ;e= 0 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 46 ) { a= 0 ; b= 1 ; c= 1 ; d= 1 ;e= 0 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 47 ) { a= 1 ; b= 1 ; c= 1 ; d= 1 ;e= 0 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 48 ) { a= 0 ; b= 0 ; c= 0 ; d= 0 ;e= 1 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 49 ) { a= 1 ; b= 0 ; c= 0 ; d= 0 ;e= 1 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 50 ) { a= 0 ; b= 1 ; c= 0 ; d= 0 ;e= 1 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 51 ) { a= 1 ; b= 1 ; c= 0 ; d= 0 ;e= 1 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 52 ) { a= 0 ; b= 0 ; c= 1 ; d= 0 ;e= 1 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 53 ) { a= 1 ; b= 0 ; c= 1 ; d= 0 ;e= 1 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 54 ) { a= 0 ; b= 1 ; c= 1 ; d= 0 ;e= 1 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 55 ) { a= 1 ; b= 1 ; c= 1 ; d= 0 ;e= 1 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 56 ) { a= 0 ; b= 0 ; c= 0 ; d= 1 ;e= 1 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 57 ) { a= 1 ; b= 0 ; c= 0 ; d= 1 ;e= 1 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 58 ) { a= 0 ; b= 1 ; c= 0 ; d= 1 ;e= 1 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 59 ) { a= 1 ; b= 1 ; c= 0 ; d= 1 ;e= 1 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 60 ) { a= 0 ; b= 0 ; c= 1 ; d= 1 ;e= 1 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 61 ) { a= 1 ; b= 0 ; c= 1 ; d= 1 ;e= 1 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 62 ) { a= 0 ; b= 1 ; c= 1 ; d= 1 ;e= 1 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 63 ) { a= 1 ; b= 1 ; c= 1 ; d= 1 ;e= 1 ;f= 1 ;g= 0 ;h= 0 ;}
if (variable== 64 ) { a= 0 ; b= 0 ; c= 0 ; d= 0 ;e= 0 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 65 ) { a= 1 ; b= 0 ; c= 0 ; d= 0 ;e= 0 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 66 ) { a= 0 ; b= 1 ; c= 0 ; d= 0 ;e= 0 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 67 ) { a= 1 ; b= 1 ; c= 0 ; d= 0 ;e= 0 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 68 ) { a= 0 ; b= 0 ; c= 1 ; d= 0 ;e= 0 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 69 ) { a= 1 ; b= 0 ; c= 1 ; d= 0 ;e= 0 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 70 ) { a= 0 ; b= 1 ; c= 1 ; d= 0 ;e= 0 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 71 ) { a= 1 ; b= 1 ; c= 1 ; d= 0 ;e= 0 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 72 ) { a= 0 ; b= 0 ; c= 0 ; d= 1 ;e= 0 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 73 ) { a= 1 ; b= 0 ; c= 0 ; d= 1 ;e= 0 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 74 ) { a= 0 ; b= 1 ; c= 0 ; d= 1 ;e= 0 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 75 ) { a= 1 ; b= 1 ; c= 0 ; d= 1 ;e= 0 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 76 ) { a= 0 ; b= 0 ; c= 1 ; d= 1 ;e= 0 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 77 ) { a= 1 ; b= 0 ; c= 1 ; d= 1 ;e= 0 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 78 ) { a= 0 ; b= 1 ; c= 1 ; d= 1 ;e= 0 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 79 ) { a= 1 ; b= 1 ; c= 1 ; d= 1 ;e= 0 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 80 ) { a= 0 ; b= 0 ; c= 0 ; d= 0 ;e= 1 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 81 ) { a= 1 ; b= 0 ; c= 0 ; d= 0 ;e= 1 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 82 ) { a= 0 ; b= 1 ; c= 0 ; d= 0 ;e= 1 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 83 ) { a= 1 ; b= 1 ; c= 0 ; d= 0 ;e= 1 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 84 ) { a= 0 ; b= 0 ; c= 1 ; d= 0 ;e= 1 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 85 ) { a= 1 ; b= 0 ; c= 1 ; d= 0 ;e= 1 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 86 ) { a= 0 ; b= 1 ; c= 1 ; d= 0 ;e= 1 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 87 ) { a= 1 ; b= 1 ; c= 1 ; d= 0 ;e= 1 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 88 ) { a= 0 ; b= 0 ; c= 0 ; d= 1 ;e= 1 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 89 ) { a= 1 ; b= 0 ; c= 0 ; d= 1 ;e= 1 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 90 ) { a= 0 ; b= 1 ; c= 0 ; d= 1 ;e= 1 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 91 ) { a= 1 ; b= 1 ; c= 0 ; d= 1 ;e= 1 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 92 ) { a= 0 ; b= 0 ; c= 1 ; d= 1 ;e= 1 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 93 ) { a= 1 ; b= 0 ; c= 1 ; d= 1 ;e= 1 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 94 ) { a= 0 ; b= 1 ; c= 1 ; d= 1 ;e= 1 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 95 ) { a= 1 ; b= 1 ; c= 1 ; d= 1 ;e= 1 ;f= 0 ;g= 1 ;h= 0 ;}
if (variable== 96 ) { a= 0 ; b= 0 ; c= 0 ; d= 0 ;e= 0 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 97 ) { a= 1 ; b= 0 ; c= 0 ; d= 0 ;e= 0 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 98 ) { a= 0 ; b= 1 ; c= 0 ; d= 0 ;e= 0 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 99 ) { a= 1 ; b= 1 ; c= 0 ; d= 0 ;e= 0 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 100 ) { a= 0 ; b= 0 ; c= 1 ; d= 0 ;e= 0 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 101 ) { a= 1 ; b= 0 ; c= 1 ; d= 0 ;e= 0 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 102 ) { a= 0 ; b= 1 ; c= 1 ; d= 0 ;e= 0 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 103 ) { a= 1 ; b= 1 ; c= 1 ; d= 0 ;e= 0 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 104 ) { a= 0 ; b= 0 ; c= 0 ; d= 1 ;e= 0 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 105 ) { a= 1 ; b= 0 ; c= 0 ; d= 1 ;e= 0 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 106 ) { a= 0 ; b= 1 ; c= 0 ; d= 1 ;e= 0 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 107 ) { a= 1 ; b= 1 ; c= 0 ; d= 1 ;e= 0 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 108 ) { a= 0 ; b= 0 ; c= 1 ; d= 1 ;e= 0 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 109 ) { a= 1 ; b= 0 ; c= 1 ; d= 1 ;e= 0 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 110 ) { a= 0 ; b= 1 ; c= 1 ; d= 1 ;e= 0 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 111 ) { a= 1 ; b= 1 ; c= 1 ; d= 1 ;e= 0 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 112 ) { a= 0 ; b= 0 ; c= 0 ; d= 0 ;e= 1 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 113 ) { a= 1 ; b= 0 ; c= 0 ; d= 0 ;e= 1 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 114 ) { a= 0 ; b= 1 ; c= 0 ; d= 0 ;e= 1 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 115 ) { a= 1 ; b= 1 ; c= 0 ; d= 0 ;e= 1 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 116 ) { a= 0 ; b= 0 ; c= 1 ; d= 0 ;e= 1 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 117 ) { a= 1 ; b= 0 ; c= 1 ; d= 0 ;e= 1 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 118 ) { a= 0 ; b= 1 ; c= 1 ; d= 0 ;e= 1 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 119 ) { a= 1 ; b= 1 ; c= 1 ; d= 0 ;e= 1 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 120 ) { a= 0 ; b= 0 ; c= 0 ; d= 1 ;e= 1 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 121 ) { a= 1 ; b= 0 ; c= 0 ; d= 1 ;e= 1 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 122 ) { a= 0 ; b= 1 ; c= 0 ; d= 1 ;e= 1 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 123 ) { a= 1 ; b= 1 ; c= 0 ; d= 1 ;e= 1 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 124 ) { a= 0 ; b= 0 ; c= 1 ; d= 1 ;e= 1 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 125 ) { a= 1 ; b= 0 ; c= 1 ; d= 1 ;e= 1 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 126 ) { a= 0 ; b= 1 ; c= 1 ; d= 1 ;e= 1 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 127 ) { a= 1 ; b= 1 ; c= 1 ; d= 1 ;e= 1 ;f= 1 ;g= 1 ;h= 0 ;}
if (variable== 128 ) { a= 0 ; b= 0 ; c= 0 ; d= 0 ;e= 0 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 129 ) { a= 1 ; b= 0 ; c= 0 ; d= 0 ;e= 0 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 130 ) { a= 0 ; b= 1 ; c= 0 ; d= 0 ;e= 0 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 131 ) { a= 1 ; b= 1 ; c= 0 ; d= 0 ;e= 0 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 132 ) { a= 0 ; b= 0 ; c= 1 ; d= 0 ;e= 0 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 133 ) { a= 1 ; b= 0 ; c= 1 ; d= 0 ;e= 0 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 134 ) { a= 0 ; b= 1 ; c= 1 ; d= 0 ;e= 0 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 135 ) { a= 1 ; b= 1 ; c= 1 ; d= 0 ;e= 0 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 136 ) { a= 0 ; b= 0 ; c= 0 ; d= 1 ;e= 0 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 137 ) { a= 1 ; b= 0 ; c= 0 ; d= 1 ;e= 0 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 138 ) { a= 0 ; b= 1 ; c= 0 ; d= 1 ;e= 0 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 139 ) { a= 1 ; b= 1 ; c= 0 ; d= 1 ;e= 0 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 140 ) { a= 0 ; b= 0 ; c= 1 ; d= 1 ;e= 0 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 141 ) { a= 1 ; b= 0 ; c= 1 ; d= 1 ;e= 0 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 142 ) { a= 0 ; b= 1 ; c= 1 ; d= 1 ;e= 0 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 143 ) { a= 1 ; b= 1 ; c= 1 ; d= 1 ;e= 0 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 144 ) { a= 0 ; b= 0 ; c= 0 ; d= 0 ;e= 1 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 145 ) { a= 1 ; b= 0 ; c= 0 ; d= 0 ;e= 1 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 146 ) { a= 0 ; b= 1 ; c= 0 ; d= 0 ;e= 1 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 147 ) { a= 1 ; b= 1 ; c= 0 ; d= 0 ;e= 1 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 148 ) { a= 0 ; b= 0 ; c= 1 ; d= 0 ;e= 1 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 149 ) { a= 1 ; b= 0 ; c= 1 ; d= 0 ;e= 1 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 150 ) { a= 0 ; b= 1 ; c= 1 ; d= 0 ;e= 1 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 151 ) { a= 1 ; b= 1 ; c= 1 ; d= 0 ;e= 1 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 152 ) { a= 0 ; b= 0 ; c= 0 ; d= 1 ;e= 1 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 153 ) { a= 1 ; b= 0 ; c= 0 ; d= 1 ;e= 1 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 154 ) { a= 0 ; b= 1 ; c= 0 ; d= 1 ;e= 1 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 155 ) { a= 1 ; b= 1 ; c= 0 ; d= 1 ;e= 1 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 156 ) { a= 0 ; b= 0 ; c= 1 ; d= 1 ;e= 1 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 157 ) { a= 1 ; b= 0 ; c= 1 ; d= 1 ;e= 1 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 158 ) { a= 0 ; b= 1 ; c= 1 ; d= 1 ;e= 1 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 159 ) { a= 1 ; b= 1 ; c= 1 ; d= 1 ;e= 1 ;f= 0 ;g= 0 ;h= 1 ;}
if (variable== 160 ) { a= 0 ; b= 0 ; c= 0 ; d= 0 ;e= 0 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 161 ) { a= 1 ; b= 0 ; c= 0 ; d= 0 ;e= 0 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 162 ) { a= 0 ; b= 1 ; c= 0 ; d= 0 ;e= 0 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 163 ) { a= 1 ; b= 1 ; c= 0 ; d= 0 ;e= 0 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 164 ) { a= 0 ; b= 0 ; c= 1 ; d= 0 ;e= 0 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 165 ) { a= 1 ; b= 0 ; c= 1 ; d= 0 ;e= 0 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 166 ) { a= 0 ; b= 1 ; c= 1 ; d= 0 ;e= 0 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 167 ) { a= 1 ; b= 1 ; c= 1 ; d= 0 ;e= 0 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 168 ) { a= 0 ; b= 0 ; c= 0 ; d= 1 ;e= 0 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 169 ) { a= 1 ; b= 0 ; c= 0 ; d= 1 ;e= 0 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 170 ) { a= 0 ; b= 1 ; c= 0 ; d= 1 ;e= 0 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 171 ) { a= 1 ; b= 1 ; c= 0 ; d= 1 ;e= 0 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 172 ) { a= 0 ; b= 0 ; c= 1 ; d= 1 ;e= 0 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 173 ) { a= 1 ; b= 0 ; c= 1 ; d= 1 ;e= 0 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 174 ) { a= 0 ; b= 1 ; c= 1 ; d= 1 ;e= 0 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 175 ) { a= 1 ; b= 1 ; c= 1 ; d= 1 ;e= 0 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 176 ) { a= 0 ; b= 0 ; c= 0 ; d= 0 ;e= 1 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 177 ) { a= 1 ; b= 0 ; c= 0 ; d= 0 ;e= 1 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 178 ) { a= 0 ; b= 1 ; c= 0 ; d= 0 ;e= 1 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 179 ) { a= 1 ; b= 1 ; c= 0 ; d= 0 ;e= 1 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 180 ) { a= 0 ; b= 0 ; c= 1 ; d= 0 ;e= 1 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 181 ) { a= 1 ; b= 0 ; c= 1 ; d= 0 ;e= 1 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 182 ) { a= 0 ; b= 1 ; c= 1 ; d= 0 ;e= 1 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 183 ) { a= 1 ; b= 1 ; c= 1 ; d= 0 ;e= 1 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 184 ) { a= 0 ; b= 0 ; c= 0 ; d= 1 ;e= 1 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 185 ) { a= 1 ; b= 0 ; c= 0 ; d= 1 ;e= 1 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 186 ) { a= 0 ; b= 1 ; c= 0 ; d= 1 ;e= 1 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 187 ) { a= 1 ; b= 1 ; c= 0 ; d= 1 ;e= 1 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 188 ) { a= 0 ; b= 0 ; c= 1 ; d= 1 ;e= 1 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 189 ) { a= 1 ; b= 0 ; c= 1 ; d= 1 ;e= 1 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 190 ) { a= 0 ; b= 1 ; c= 1 ; d= 1 ;e= 1 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 191 ) { a= 1 ; b= 1 ; c= 1 ; d= 1 ;e= 1 ;f= 1 ;g= 0 ;h= 1 ;}
if (variable== 192 ) { a= 0 ; b= 0 ; c= 0 ; d= 0 ;e= 0 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 193 ) { a= 1 ; b= 0 ; c= 0 ; d= 0 ;e= 0 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 194 ) { a= 0 ; b= 1 ; c= 0 ; d= 0 ;e= 0 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 195 ) { a= 1 ; b= 1 ; c= 0 ; d= 0 ;e= 0 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 196 ) { a= 0 ; b= 0 ; c= 1 ; d= 0 ;e= 0 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 197 ) { a= 1 ; b= 0 ; c= 1 ; d= 0 ;e= 0 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 198 ) { a= 0 ; b= 1 ; c= 1 ; d= 0 ;e= 0 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 199 ) { a= 1 ; b= 1 ; c= 1 ; d= 0 ;e= 0 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 200 ) { a= 0 ; b= 0 ; c= 0 ; d= 1 ;e= 0 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 201 ) { a= 1 ; b= 0 ; c= 0 ; d= 1 ;e= 0 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 202 ) { a= 0 ; b= 1 ; c= 0 ; d= 1 ;e= 0 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 203 ) { a= 1 ; b= 1 ; c= 0 ; d= 1 ;e= 0 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 204 ) { a= 0 ; b= 0 ; c= 1 ; d= 1 ;e= 0 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 205 ) { a= 1 ; b= 0 ; c= 1 ; d= 1 ;e= 0 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 206 ) { a= 0 ; b= 1 ; c= 1 ; d= 1 ;e= 0 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 207 ) { a= 1 ; b= 1 ; c= 1 ; d= 1 ;e= 0 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 208 ) { a= 0 ; b= 0 ; c= 0 ; d= 0 ;e= 1 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 209 ) { a= 1 ; b= 0 ; c= 0 ; d= 0 ;e= 1 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 210 ) { a= 0 ; b= 1 ; c= 0 ; d= 0 ;e= 1 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 211 ) { a= 1 ; b= 1 ; c= 0 ; d= 0 ;e= 1 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 212 ) { a= 0 ; b= 0 ; c= 1 ; d= 0 ;e= 1 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 213 ) { a= 1 ; b= 0 ; c= 1 ; d= 0 ;e= 1 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 214 ) { a= 0 ; b= 1 ; c= 1 ; d= 0 ;e= 1 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 215 ) { a= 1 ; b= 1 ; c= 1 ; d= 0 ;e= 1 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 216 ) { a= 0 ; b= 0 ; c= 0 ; d= 1 ;e= 1 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 217 ) { a= 1 ; b= 0 ; c= 0 ; d= 1 ;e= 1 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 218 ) { a= 0 ; b= 1 ; c= 0 ; d= 1 ;e= 1 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 219 ) { a= 1 ; b= 1 ; c= 0 ; d= 1 ;e= 1 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 220 ) { a= 0 ; b= 0 ; c= 1 ; d= 1 ;e= 1 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 221 ) { a= 1 ; b= 0 ; c= 1 ; d= 1 ;e= 1 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 222 ) { a= 0 ; b= 1 ; c= 1 ; d= 1 ;e= 1 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 223 ) { a= 1 ; b= 1 ; c= 1 ; d= 1 ;e= 1 ;f= 0 ;g= 1 ;h= 1 ;}
if (variable== 224 ) { a= 0 ; b= 0 ; c= 0 ; d= 0 ;e= 0 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 225 ) { a= 1 ; b= 0 ; c= 0 ; d= 0 ;e= 0 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 226 ) { a= 0 ; b= 1 ; c= 0 ; d= 0 ;e= 0 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 227 ) { a= 1 ; b= 1 ; c= 0 ; d= 0 ;e= 0 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 228 ) { a= 0 ; b= 0 ; c= 1 ; d= 0 ;e= 0 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 229 ) { a= 1 ; b= 0 ; c= 1 ; d= 0 ;e= 0 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 230 ) { a= 0 ; b= 1 ; c= 1 ; d= 0 ;e= 0 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 231 ) { a= 1 ; b= 1 ; c= 1 ; d= 0 ;e= 0 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 232 ) { a= 0 ; b= 0 ; c= 0 ; d= 1 ;e= 0 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 233 ) { a= 1 ; b= 0 ; c= 0 ; d= 1 ;e= 0 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 234 ) { a= 0 ; b= 1 ; c= 0 ; d= 1 ;e= 0 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 235 ) { a= 1 ; b= 1 ; c= 0 ; d= 1 ;e= 0 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 236 ) { a= 0 ; b= 0 ; c= 1 ; d= 1 ;e= 0 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 237 ) { a= 1 ; b= 0 ; c= 1 ; d= 1 ;e= 0 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 238 ) { a= 0 ; b= 1 ; c= 1 ; d= 1 ;e= 0 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 239 ) { a= 1 ; b= 1 ; c= 1 ; d= 1 ;e= 0 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 240 ) { a= 0 ; b= 0 ; c= 0 ; d= 0 ;e= 1 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 241 ) { a= 1 ; b= 0 ; c= 0 ; d= 0 ;e= 1 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 242 ) { a= 0 ; b= 1 ; c= 0 ; d= 0 ;e= 1 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 243 ) { a= 1 ; b= 1 ; c= 0 ; d= 0 ;e= 1 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 244 ) { a= 0 ; b= 0 ; c= 1 ; d= 0 ;e= 1 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 245 ) { a= 1 ; b= 0 ; c= 1 ; d= 0 ;e= 1 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 246 ) { a= 0 ; b= 1 ; c= 1 ; d= 0 ;e= 1 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 247 ) { a= 1 ; b= 1 ; c= 1 ; d= 0 ;e= 1 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 248 ) { a= 0 ; b= 0 ; c= 0 ; d= 1 ;e= 1 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 249 ) { a= 1 ; b= 0 ; c= 0 ; d= 1 ;e= 1 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 250 ) { a= 0 ; b= 1 ; c= 0 ; d= 1 ;e= 1 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 251 ) { a= 1 ; b= 1 ; c= 0 ; d= 1 ;e= 1 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 252 ) { a= 0 ; b= 0 ; c= 1 ; d= 1 ;e= 1 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 253 ) { a= 1 ; b= 0 ; c= 1 ; d= 1 ;e= 1 ;f= 1 ;g= 1 ;h= 1 ;}
if (variable== 254 ) { a= 0 ; b= 1 ; c= 1 ; d= 1 ;e= 1 ;f= 1 ;g= 1 ;h= 1 ;}
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Метки: CodeSOD |
The Logs Don't Lie |
She'd resisted the call for years. As a senior developer, Makoto knew how the story ended: one day, she'd be drafted into the ranks of the manager, forswearing her true love webdev. When her boss was sacked unexpectedly, mere weeks after the most senior dev quit, she looked around and realized she was holding the short straw. She was the most senior. This is her story.
As she settled into her new responsibilities, Makoto started coming in earlier and earlier in the hopes of getting some development work done. As such, she started to get accustomed to the rhythm of the morning shift, before most devs had rolled out of bed, but after the night shift ops guys had gone home.
Bad sign number 1: the CEO wandering past, looking a bit lost and vaguely concerned.
"Can I help you?" Makoto asked, putting down her breakfast pastry.
Bad sign number 2 was his reply: "Does the Internet look down to you?"
Makoto quickly pulled up her favorite Internet test site, /r/aww, to verify that she still had connectivity. "Seems all right to me."
"Well, I can't get online."
Webdev-Makoto would've shrugged and thought, Not my circus. Manager-Makoto forced a grin onto her face and said, "I'll get my guys on that."
"Thanks, you're a real champ." Satisfied, the CEO wandered back to whatever it was he did all day, leaving Makoto to explain a problem she wasn't experiencing to guys way more qualified to work on this than she was.
Hoping to explain the discrepancy, she unplugged her laptop. This time, the adorable kittens failed to load.
"Success!" she told the empty office. "This is officially some weird wi-fi problem."
She drafted up a notice to that effect, sent it to the office mailing list, and assigned her teammate Sven to find and fix the problem. By 9:00 AM, all was well, and her team had sent out an update to that effect.
Now well into her daily routine, Makoto put the incident behind her. After all, it was resolved, wasn't it?
4:00 PM rolled around, and Makoto was somehow the recipient for an angry email from Greg in Sales. Is the internet still out? I need to close out my sales!!! Why hasn't your team fixed this yet! We could lose $300,000 if I can't close out my sales by 5PM!!!!!
Makoto rolled her eyes at the unnecessary number of exclamation points and checked the sales pipeline. Sure enough, there was nothing preventing her from accessing Greg's queue and verifying that all $100 worth of sales were present and accounted for.
Makoto cracked her knuckles and crafted the most polite response she could muster: As per my update at 9am, the Internet is back online and you should be able to perform any and all job duties at this time.
The reply came 2 minutes later: I cannot close my opportunities!!!
Makoto forwarded the email chain to Sven before rolling over to his desk. "Greg's being a drama llama again. Can you pull the firewall logs and prove he's got Internet?"
"'Course."
10 minutes and 4 raised eyebrows later, Sven replied to the ticket, copying Greg's boss and attaching a screenshot of the logs. As Makoto stated, we are online at this time. Is it possible your computer received a virus from browsing PornHub since 9:30 this morning?
Greg spent the next day in meetings with HR, and the next week on unpaid leave to think about what he'd done. To this day, he cannot look Sven or Makoto in the eye as they pass each other in the hallway. Makoto suspects he won't suffer long—only as long as it takes him to find another job. Maybe one with IT people who don't know what search keywords he uses.
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Метки: Feature Articles |
CodeSOD: This or That |
Processing financial transactions is not the kind of software you want to make mistakes in. If something is supposed to happen, it is definitely supposed to happen. Not partially happen. Not maybe happen.
Thus, a company like Charles Rs uses a vendor-supplied accounting package. That vendor has a professional services team, so when the behavior needs to be customized, Charless company outsources that development to the vendor.
Of course, years later, that code needs to get audited, and its about then that you find out that the vendor outsourced their professional services to the lowest bidder, creating a less-than-professional service result.
If you want to make sure than when the country code is equal to "HND", you want to be really sure.
if(transaction.country == config.country_code.HND || transaction.country == config.country_code.HND)
parts[0] = parts[0].replace(/\B(?=(\d{3})+(?!\d))/g, ",");
else
parts[0] = parts[0].replace(/\B(?=(\d{3})+(?!\d))/g, ".");|
Метки: CodeSOD |
Error'd: No Thanks Necessary |
"I guess we're not allowed to thank the postal carriers?!" Brian writes.
"So, does the CPU time mean that Microsoft has been listening to every noise I have made since before I was born?" writes Shaun F.
"No problem. I will not attempt to re-use your error message without permission," wrote Alex K.
Mark B. writes, "Ah, if only we could have this in real life."
"Good work Google! Another perfect translation into German," Kolja wrote.
"I was searching for an Atmel MCU, so I naturally opened Atmel's Product Finder. I kind of wish that I didn't," writes Michael B.,
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Метки: Error'd |
Finding the Lowest Value |
Maxs team moved into a new office, which brought with it the low-walled, bee-hive style cubicle partitions. Their project manager cheerfully explained that the new space would optimize collaboration , which in practice meant that every random conversation between any two developers turned into a work-stopping distraction for everyone else.
That, of course, wasnt the only change their project manager instituted. The company had been around for a bit, and their original application architecture was a Java-based web application. At some point, someone added a little JavaScript to the front end. Then a bit more. This eventually segregated the team into two clear roles: back-end Java developers, and front-end JavaScript developers.
Silos, the project manager explained, are against the ethos of collaboration. Were all going to be full stack developers now. Thus everyones job description and responsibilities changed overnight.
Add an overly ambitious release schedule and some unclear requirements, and the end result is a lot of underqualified developers rushing to hit targets with tools that they dont fully understand, in an environment that isnt conducive to concentration in the first place.
Max was doing his best to tune out the background noise, when Mariella stopped into Daltons cube. Dalton, sitting straight across from Max, was the resident front-end expert , or at least, he had been before everyone was now a full-stack developer. Mariella was a long-time backend JEE developer who hadnt done much of the web portion of their application at all, and was doing her best to adapt to the new world.
Dalton, whats the easiest way to get the minimum value of an array of numbers in JavaScript? Mariella asked.
Max did his best to ignore the conversation. He was right in the middle of a particularly tricky ORM-related bug, and was trying to figure out why one fetch operation was generating just awful SQL.
Hrmmmm… Dalton said, tapping at his desk and adding to the distraction while he thought. Thats a tough one. Oh! You should use a filter!
A filter, what would I filter on?
Max combed through the JPA annotations that controlled their data access, cursing the magic that generated SQL queries, but as he started to piece it together, Dalton and Mariella continued their instructional session.
In the filter callback, youd just check to see if each value is the lowest one, and if it is, return true, otherwise return false. Dalton knocked out a little drum solo on his desk, to celebrate his cleverness.
But… I wouldnt know which value is the lowest one, yet, Mariella said.
Oh, yeah… I see what you mean. Yeah, this is a tricky one.
Max traced through the code. Okay, so the @JoinColumn is CUST_ID, so why is it generating a LIKE comparison instead of an equals? Wait, I think Ive-
Ah ha! Dalton said, chucking Maxs train of thought off the rails and through an HO-scale village. You just sort the array and take the first value! *Thumpa thumpa tadatada* went Daltons little desk drum solo.
I guess that makes sense, Mariella said.
At this point, Max couldnt stay out of the conversation. No! Dont do that. Use reduce. Sortings an n(lg n) operation.
Hunh? Dalton said. His fingers nervously hovered over his desk, ready to play his next drum solo once he had a vague clue what Max was talking about. In logs in? Were not doing logging…
Max tried again, in simple English. Sorting is slow. The computer does a lot of extra work to sort all the elements.
No it wont, Dalton said. Itll just take the first element.
Ahem. Max turned to discover the project manager looming over his cube. We want to encourage collaboration, the PM said, sternly, but right now, Max, youre being disruptive. Please be quiet and let the people around you work.
And that was how Daltons Minimum Finding Algorithm got implemented, and released as part of their production code base.
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Метки: Feature Articles |
CodeSOD: A Pre-Packaged Date |
Microsofts SQL Server Integration Services is an ETL tool that attempts to mix visual programming (for designing data flows) with the reality that at some point, youre just going to need to write some code. Your typical SSIS package starts as a straightforward process that quickly turns into a sprawling mix of spaghetti-fied .NET code, T-SQL stored procedures, and developer tears.
TJ L. inherited an SSIS package. This particular package contained a step where a C# sub-module needed to pass a date (but not a date-time) to the database. Now, this could be done easily by using C#s date-handling objects, or even in the database by simply using the DATE type, instead of the DATETIME type.
Instead, TJs predecessor took this route instead:
CREATE PROC [dbo].[SetAsOfDate]
@Date datetime = NULL
AS
SELECT @Date = CASE WHEN YEAR(@DATE) < 1950 THEN GETDATE()
WHEN @Date IS NULL THEN GETDATE()
ELSE @Date
END;
SELECT CAST(FLOOR(CAST(@Date AS FLOAT)) AS DATETIME) AS CurrentDateThe good about this code is that it checks its input parameters. Thats defensive programming. The ugly is the less-than 1950 check, which I can only assume is a relic of some Y2K bugfixes. The bad is the `CAST(FLOOR(CAST(@Date AS FLOAT)) as DATETIME).
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Метки: CodeSOD |
The Little Red Button |
Bryan T. had worked for decades to amass the skills, expertise and experience to be a true architect, but never quite made the leap. Finally, he got a huge opportunity in the form of an interview with a Silicon Valley semi-conductor firm project manager who was looking for a consultant to do just that. The discussions revolved around an application that three developers couldn't get functioning correctly in six months, and Bryan was to be the man to reign it in and make it work; he was lured with the promise of having complete control of the software.
Upon starting and spelunking through the code-base, Bryan discovered the degree of total failure that caused them to yield complete control to him. It was your typical hodgepodge of code slapped together with anti-patterns, snippets of patterns claiming to be the real deal, and the usual Assortment-o-WTF™ we've all come to expect.
Once he recognized the futility of attempting to fix this mess, Bryan scrapped it and rewrote it as a full-blown modular and compositional application, utilizing MVVM, DDD, SOA, pub/sub; the works. Within three weeks, he had it back to the point it was when he started, only his version actually worked.
While he had righted the sinking ship, it was so successful that the project team started managing it, which proved to be its undoing.
Given the sudden success of the project, the department head committed the application to all the divisions company wide within three quarters - without informing Bryan or anyone else on the team. After all, it's not like developers need to plan for code and resource scalability issues beyond the original design requirements or anything.
We've read countless stories about how difficult it is to work with things like dates and even booleans, but buttons are pretty much solidly understood. Some combination of text, text+image or just image, and an onAction callback pretty much covers it. Oh sure, you can set fg/bg colors and the font, but that's usually to just give visual clues. Unfortunately, buttons would be the beginning of a downward spiral so steep, that sheer inertia would derail the project.
The project manager decided that images were incredibly confusing, so all buttons should have text instead of icons. Bryan had created several toolbars (because ribbons were shot down already) which, according to management, made the application unusable. In particular, there was a fairly standard user icon with a pencil bullet that was meant to (as you might have guessed it) edit users...
Manager: So I looked at it with Lisa and she had no clue what it was.
It was so confusing that no one would ever be able to use our
application with it. Buttons should all be text and not images!
OK, let’s forget that ribbons and toolbars have been an application standard for decades now; let’s focus on how confusing this really is. To that end, Bryan did the nanny test. He asked his nanny what she thought it meant and she thought that the button had something to do with people. Awesome, on the ball! After explaining what it did she agreed it made sense.
Bryan: How about we explain it to the users and add a tooltip?
Mgr: Tooltips take way too long to display and it’s still
incredibly confusing – no one would remember it. We
don't want people pressing the wrong buttons!
And why are some of the buttons different colors than others?
Bryan wasn't sure if the manager realized how stupidly he was treating his users, if he was just oblivious, or if he was just pushing for his personal preference. In the end, all the toolbars were removed and the icons were replaced with text. This left an application with assorted colored buttons with text. Unfortunately, some of the buttons were so small that the text got displayed as a truncated string. Also, no amount of explanation could convey that color could also convey meaning (think traffic lights).
As his opinion in UI matters dwindled to nothing over the next couple of months, one of the four BA’s on the team of six pinged Bryan for a meeting about scalability. He wanted to make sure that the project was scalable for the next three quarters. Enter the Holy Hell Twilight Zone moment in the land where no ribbons or toolbars exist, as the project manager was also involved.
Mgr: I’ve got to make sure we have everything we need to
scale for the next three quarters.
Bryan: I can’t get the project manager to commit to lay out
three weeks of planning for development. I can’t even
begin to guess if we have what we need for the next three
quarters.
Mgr: Well the vice president has a commitment to deploy this
to all divisions in the company within three quarters and
I’m tasked to make sure we have what we need.
Now Bryan could make up statistics better than 84.3% of people, but what was asked was impossible to determine. Additionally there was a flat out refusal to even vaguely commit to development more than a week or two in advance, so there was heavy resistance just to get the information needed to try!
At this point in time, Bryan felt the need to bail out, but before he left town he grabbed his prized coffee mug from the office. He wasn’t going to be back in town for at least three weeks and from his prior experiences he knew where this was going.
Of course the guy who originally sunk the ship in the first place had a true killer instinct, apparently knew better than Bryan and was left to steer the ship again. All these problems and issues that Bryan saw coming were either over exaggerations or without merit. The project manager felt so comfortable with the architecture and frameworks that Bryan put in place that he felt confident that there was absolutely nothing that he couldn’t handle. After all, he now had the buttons he wanted and understood. Bryan repeatedly asked if he wanted code walkthroughs and was denied. He didn't need to know what the different colors on the buttons were for. Bryan was even given 40 free consulting hours and even told not to check in his latest bug fixes.
Bryan sent his final farewell with a picture of him drinking from his coffee mug at home and out of state.
A real killer, when handed the ZF-1, would've immediately asked about the little red button on the bottom of the gun.
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Метки: Feature Articles |
CodeSOD: Impersonated Programming |
Once upon a time, a long long time ago, I got contracted to show a government office how to build and deliver applications… in Microsoft Access. Im sorry. Im so, so sorry. As horrifying and awful as it is, Access is actually built with some mechanisms to actually support that- you can break the UI and behavior off into one file, while keeping the data in another, and you can actually construct linked tables that connect to a real database, if you dont mind gluing a UI made out of evil and sin to your real database.
Which brings us to poor Alex Rao. Alex has an application built in Access. This application uses linked tables, which he wants to convert to local tables. The VBA API exposed by Access doesnt give him any way to do this, so he came up with this solution…
Public Function convertToLocal()
Dim dBase As DAO.Database
Dim tdfTable As DAO.TableDef
Set dBase = CurrentDb
For Each tdfTable In dBase.TableDefs
If tdfTable.Connect <> "" Then
' OH. MY. GOSH. I hate myself so much for doing this. For the love of everything holy,
' dear reader, if you can come up with a better way to do this, please tell me about it
' AS SOON AS POSSIBLE
' I have literally been trying to do this for the past week. For reference, here is what I
' am trying to do:
' Convert a "linked" table to a "local" one
' Keep relationships intact.
' Now, Access has this handy tool, "Convert to Local Table" - you'll see it if you right click
' on a linked table. However, THERE IS NO WAY IN VBA TO DO THIS. I am aware of the following:
' DoCmd.SelectObject acTable, "Company", True RunCommand acCmdConvertLinkedTableToLocal
' Note that this no longer works as of Access 2016 because the wonderful programmers at Microsoft decided
' that "It wasn't used anymore".
'
' So, onto my solution:
' First, I select the table object, making sure it's actually selected (i.e., like a user selected it)
' Then, I pause for one second (I hope to the man upstairs that's long enough)
' Then, I send the "Context Menu" key (SHIFT+F10)
' Then, I pause for another second (Again, fingers crossed)
' Then, I send the "v" key - to activate the "ConVert to Local Table" command shortcut
'
' I literally send KEYPRESSES to the active application, and hope to God that Access is ready to go.
' And if the user selected a different application (or literally anything else) in that time? Well,
' then Screw you, user.
'
' God help us.
DoCmd.SelectObject acTable, tdfTable.Name, True
Pause 1
SendKeys "+{F10}", True
Pause 1
SendKeys "v", True
End If
Next tdfTable
End FunctionDont feel bad, Alex. Im certain this isnt the worst thing ever built in Access.
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Метки: CodeSOD |
Error'd: Unfortunate Timing |
"Apparently, I viewed the page during one of those special 31 seconds of the year," wrote Richard W.
"Well, it looks like I'll be paying full price for this repair," wrote Ryan W.
Marco writes, "So...that's like September 2nd?"
"Office 365????? I guess so, but ONLY if you're sure, Microsoft..." writes Leonid T.
Brandon writes, "Being someone who lives in 'GMT +1', I have to wonder, is it the 6th, 11th, or 12th of July or the 7th of June, November, or December we're talking about here?"
"Translated, it reads, 'Bayrou and Modem in angry mode', assuming of course it really is Mr. Bayrou in the pic," wrote Matt.
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Метки: Error'd |
CodeSOD: Changing Requirements |
Requirements change all the time. A lot of the ideology and holy wars that happen in the Git processes camps arise from different ideas about how source control should be used to represent these changes. Which commit changed which line of code, and to what end? But what if your source control history is messy, unclear, or… youre just not using source control?
For example, lets say youre our Anonymous submitter, and find the following block of code. Once upon a time, this block of code enforced some mildly complicated rules about what dates were valid to pick for a dashboard display.
Can you tell which line of code was in a reaction to a radically changed requirement?
function validateDashboardDateRanges (dashboard){
return true;
if(dashboard.currentDateRange && dashboard.currentDateRange.absoluteEndDate && dashboard.currentDateRange.absoluteStartDate) {
if(!isDateRangeCorrectLength(dashboard.currentDateRange.absoluteStartDate, dashboard.currentDateRange.absoluteEndDate)){
return false;
}
}
if(dashboard.containers){
for(var c = 0; c < dashboard.containers.length; c++){
var container = dashboard.containers[c];
for(var i = 0; i < container.widgets.length; i++){
if(container.widgets[i].settings){
if(container.widgets[i].settings.customDateRange){
if(container.widgets[i].settings.dateRange.relativeDate){
if (container.widgets[i].settings.dateRange.relativeDate === '-1y'){
return false;
}
} else if (!isDateRangeCorrectLength(container.widgets[i].settings.dateRange.absoluteStartDate, container.widgets[i].settings.dateRange.absoluteEndDate)){
return false;
}
}
}
}
}
}
return true;
}|
Метки: CodeSOD |
The Defensive Contract |
Working for a contractor within the defense industry can be an interesting experience. Sometimes you find yourself trying to debug an application from a stack trace which was handwritten and faxed out of a secured facility with all the relevant information redacted by overzealous security contractors who believe that you need a Secret clearance just to know that it was a System.NullReferenceException. After weeks of frustration when you are unable to solve anything from a sheet of thick black Sharpie stripes, they may bring you there for on-site debugging.
Beforehand, they will lock up your cell phone, cut out the WiFi antennas from your development laptop, and background check you so thoroughly that theyll demand explanations for the sins of your great-great-great-great grandfathers neighbors cousins second wifes stillborn son before letting you in the door. Once inside, they will set up temporary curtains around your environment to block off any Secret-rated workstation screens to keep you from peeking and accidentally learning what the Top Secret thread pitch is for the lug nuts of the latest black-project recon jet. Then they will set up an array of very annoying red flashing lights and constant alarm whistles to declare to all the regular staff that they need to watch their mouths because an uncleared individual is present.
Then youll spend several long days trying to fix code. But youll have no Internet connection, no documentation other than whatever three-ring binders full of possibly-relevant StackOverflow questions you had forseen to prepare, and the critical component which reliably triggers the fault has been unplugged because it occasionally sends Secret-rated UDP packets, and, alas, youre still uncleared.
When you finish the work, if youre lucky theyll even let you keep your laptop. Minus the hard drive, of course. That gets pulled, secure-erased ten times over, and used for target practice at the local Marine battalions next SpendEx.
Despite all the inherent difficulties though, defense work can be very financially-rewarding. If you play your cards right, your company may find itself milking a 30-year-long fighter jet development project for all its worth with no questions asked. Thats good for salaries, good for employee morale, and very good for job security.
Thats not what happened to Nikko, of course. No. His company didnt play its cards right at all. In fact, they didnt even have cards. They were the player who walked up to the poker table after the River and went all-in despite not even being dealed into the game. Hey, the companys leaders said to themselves, Yeah well lose some money, but at least we get to play with the big boys. Thats worth a lot, and someday well be the lead contractor for the software on the next big Fire Control Radar!
So Nikko found himself working on a project his company was the subcontractor (a.k.a. the lowest bidder) for. But in their excited rush to take on the work, nobody read the contract and signed it as-is. The customers requirements for this component were vague, contradictory, at times absurd, and of course the contract offered no protection for Nikkos company.
In fact, months later when Nikkonot yet aware of the mess he was inmet with engineers from the lead contractorwhom well call Acmefor guidance on the project, one of them plainly told him in an informal context Yeah, its a terrible component. We just wanted to get out from under it. Its a shame you guys bid on it&
The project began, using a small team of a project manager, Nikko as the experienced lead, and two junior engineers. Acme did not make things easy on them. They were expected to write all code at Acmes facilities, on a network with no Internet access. They were asked to bring their own laptops in to develop on, but the information security guys refused and instead offered them one 15-year-old Pentium 4 that the three engineers were expected to share. Of course, using such an ancient system meant that a clean compile took 20 minutes, and the hidden background process that the security guys used to audit file access constantly brought disk I/O to a halt.
But development started anyway, depsite all the red flags. They were required to use an API from another subcontractor. However, that subcontractor would only give them obfuscated JAR files with no documentation. Fortunately it was a fairly simple API and the team had some success decompiling it and figuring out how it works.
But their next hurdle was even worse. All the JAR did was communicate with a REST interface from a server. But due to the way the Acme security guys had things set up, there was no test server on the development network. It wasnt allowed. Period.
The actual server lived in an integration lab located several miles away, but coding was not allowed there. Access to it was tightly-controlled and scheduled. Nikko found himself writing code, checking it in, and scheduling a time slot at the lab (which often took days) to try out his changes.
The integration lab was secured. He could not bring anything in and Acme information security specialists had to sign off on strict paperwork every time he wanted to transfer the latest build there. Debuggers were forbidden due to the fears of giving an uncleared individual access to the systems memory, and Nikko had to hand-copy any error logs using pen and paper to bring any error messages out of the facility and back to the development lab.
Three months into the project, Nikko was alone. The project manager threw some kind of temper tantrum and either quit or was fired. One of the junior engineers gave birth and quit the company during maternity leave. And the other junior engineer accepted an offer from another company and also left.
Nikko, feeling burned out and unable to sleep one night, then remembered his fathers story of punchcard programming in computings early days. Back then, your program was a stack of punchcards, with each card performing a single machine instruction. You had to schedule a 15-minute timeslot with the computer to run through your program which was actually a stack of punchcards. And sometimes the operator accidentally dropped your box of punchcards on the way to the machine but made no effort to ensure they were executed in the correct order, ruining the job.
The day after that revelation, Nikko met with his bosses. He was upset, and flatly told them that the project could not succeed, they were following 1970s punchcard programming methodologies in the year 2016, and that he would have no part in it anymore.
He then took on a job at a different defense contractor. And then found himself working again as a subcontractor on an Acme component. He decided to stick with it for a while since his new company actually read contracts before signing, so maybe it would be better this time? Still, in the back of his mind he started to wonder if he had died and Acme was his purgatory.
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Метки: Feature Articles |
CodeSOD: Questioning Existence |
Michael got a customer call, from a PHP system his company had put together four years ago. He pulled up the code, which thankfully was actually up to date in source control, and tried to get a grasp of what the system does.
There, he discovered a… unique way to define functions in PHP:
if(!function_exists("GetFileAsString")){
function GetFileAsString($FileName){
$Contents = "";
if(file_exists($FileName)){
$Contents = file_get_contents($FileName);
}
return $Contents;
}
}
if(!function_exists("RemoveEmptyArrayValuesAndDuplicates")){
function RemoveEmptyArrayValuesAndDuplicates($ArrayName){
foreach( $ArrayName as $Key => $Value ) {
if( empty( $ArrayName[ $Key ] ) )
unset( $ArrayName[ $Key ] );
}
$ArrayName = array_unique($ArrayName);
$ReIndexedArray = array();
$ReIndexedArray = array_values($ArrayName);
return $ReIndexedArray;
}
}Before we talk about the function_exists nonsense, lets comment on the functions themselves: theyre both unnecessary. file_get_contents returns a false-y value that gets converted to an empty string if you ever treat it as a string , which is exactly the same thing that GetFileAsString does. The replacement for RemoveEmptyArrayValuesAndDuplicates could also be much simpler: array_values(array_unique(array_filter($rawArray)));. Thats still complex enough it could merit its own function, but without the loop, its far easier to understand.
Neither of these functions needs to exist, which is why, perhaps, theyre conditional. I can only guess about how these came to be, but heres my guess:
Once upon a time, in the Dark Times, many developers were working on the project. They worked with no best-practices, no project organization, no communication, and no thought. Each of them gradually built up a library of
includefiles, that carried with it their own… unique solution to common problems. It became spaghetti, and then eventually a forest, and eventually, in the twisted morass of code, SallybobsGetFileAsStringconflicted with JoebobsGetFileAsString. The project teetered on the edge of failure… so someone tried to fix it, by decreeing every utility function needed this kind of guard.
Ive seen PHP projects go down this path, though never quite to this conclusion.
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Метки: CodeSOD |
Rubbed Off |
Early magnetic storage was simple in its construction. The earliest floppy disks and hard drives used an iron (III) oxide surface coating a plastic film or disk. Later media would use cobalt-based surfaces, providing a smaller data resolution than iron oxide, but wouldnt change much.
Samuel H. never had think much about this until he met Micah.
In the fall of 1980, Samuel was a freshman at State U. The housing department had assigned him Micah as his roommate, assuming that since both were Computer Science majors, they would get along.
On their first night together, Samuel asked why Micah kept throwing his books off the shelf onto the floor. Oh, I just keep shuffling the books around until theyre in the right order, Micah said.
Have you tried, I dont know, taking out one book at a time, starting from the left? Samuel asked. Or sorting the books in pairs, then sorting pairs of pairs, and so on? He had read about sorting algorithms over the summer.
Micah shrugged, continuing to throwing books on the floor.
In one of their shared classes, Samuel and Micah were assigned as partners on a project. The assignment: write a program in Altair BASIC that analyzes rainfall measurements from the university weather station, then displays a graph and some simple statistics, including the dates with the highest and lowest values.
All students had access to Altair 8800s in the lab. They were given one 8 floppy disk with the rainfall data, and a second for additional code. Samuel wanted to handle the data read/write code and leave the display to Micah, but Micah insisted on doing the data-handling code himself. Ive learned a lot," he said. Samuel remembered the sounds of books crashing on the floor and flinched. Still, he thought the display code would be easier, so he let Micah at it.
Samuel finished his half of the code early. Micah, though, was obsessed with Star Trek, a popular student-coded space tactics game, and waited until the day before to start work. Okay, tonight, I promise, he said, as Samuel left him in the computer lab at an Altair. As he left, he hard Micah close the drive, and the read-head start clacking across the disk.
The next morning, Samuel found Micah still in the lab at his Altair. He was in tears. The datas gone, he said. I dont know what I did. I started getting read errors around 1AM. I think the data file got corrupted somehow.
Samuel gasped when Micah handed him the floppy cask. Through the read window in the cover, he could see transparent stripes in the disk. The magnetic write surface had been worn away, leaving the clear plastic backing.
Micah explained. He had written his code to read the data file, find the lowest value, write it to an entirely new file, then mark the value in the original file as read. Then it would read the original file again, write another new file, and so on.
Samuel calculated that, with Micahs algorithm, the original file would be read and written to n1 times, given n entries.
Samuel went to the professor and pleaded for a new partner, showing him the floppy with the transparent medium inside. Samuel was given full credit for his half of the program. Micah would have to write his entire program from scratch with a new copy of the data.
Samuel left Micah for another roommate that spring. He didnt see much of him, as the latter had left Computer Science to major in Philosophy. He didnt hear about Micah again until a spring day in 1989, after he had finished his PhD.
A grad student, who worked at the computer help desk, told Samuel about a strange man at the computer lab one night. He was despondent, trying to find someone who could help him recover his thesis from a 3 1/2" floppy disk. The student offered to help, and when the man handed him the disk, he pulled the metal tab aside to check for dust.
Most of the oxide coating had been worn away, leaving thin, transparent stripes.
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Метки: Feature Articles |
Error'd: Unmapped Potential |
"As an Australian, I demand that they replace one of the two Belgiums with something to represent the quarter of the Earth they missed!" writes John A.
Andrew wrote, "{47}, {48}, and I would be {49} if {50} and {51}."
"Apparently, DoorDash is listening to their drivers about low wages and they 'fixed the glitch'," write Mark H.
"Advertising in Chicago's Ogilvie transportation center in need of recovery," writes Dave T.
"On the one hand, I'm interested in how Thunderbird plans to quaduple my drive space, but I'm kind of scared to click on the button," wrote Josh B.
"Good thing the folks at Microsoft put the little message in parenthesis," writes Bobbie, "else, you know, I might expect a touch bar to magically appear on my laptop."
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