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00:00 - 15:0015:00 - 21:0021:00 - 00:00

Jerry Coffin
Jerry Coffin
9:00 PM
@Edward What about if you're from Texas and bring an Armadillo (with only one set of tire marks) instead?
 
Stack Exchange
Stack Exchange
2
Q: Should [programming-challenge] questions require a summary of the challenge?

200_successProject Euler has been offline for several days, after the site was hacked. Problem is, a large number of our questions relate to Project Euler, and many of them do not contain any description of the challenge that the code aims to solve. Some link to the page on Project Euler where the chall...

discussion asking-questions
 
JohnP
JohnP
@JerryCoffin - I wasn't aware you could kill an armadillo with only one set of tracks.
 
rolfl
rolfl
@JohnP For inline code, use the back-tick like ` this `
 
JohnP
JohnP
I've seen them put holes in Saturn body panels and walk away.
 
Jerry Coffin
Jerry Coffin
@JohnP If it's short (less than a line) enclose in back-ticks. If it's longer, indent it. If it's very long, consider posting elsewhere, and just post a link here.
 
JohnP
JohnP
9:01 PM
Indent?
 
rolfl
rolfl
For quoting things, have > followed by a space:
 
Jerry Coffin
Jerry Coffin
@JohnP Depends on the tires. For a proper Texas-sized "truck", one set suffices.
 
rolfl
rolfl
> this is quoted.
 
JohnP
JohnP
 >       <script type="text/javascript">
            $(document).ready(function(){

            });
            function sendPushNotification(id){
                var data = $('form#'+id).serialize();
                $('form#'+id).unbind('submit');
                $.ajax({
                    url: "send_message.php",
                    type: 'GET',
                    data: data,
                    beforeSend: function() {

                    },
                    success: function(data, textStatus, xhr) {
 
Edward
Edward
There ya go.
 
rolfl
rolfl
9:02 PM
for code text, put it on multi lines...... and hit the format-code
 
Edward
Edward
So why are we looking at this?
 
rolfl
rolfl
or just indent it with 4 spaces.
 
JohnP
JohnP
How do I test that? I put outputs in send_message.php but it never shows it.
Somewhere between submit and actually submitting to a GCM server for a push notification the message never gets there.
 
Alex Lieberman
Alex Lieberman
o shit
forget it ill just update there
 
JohnP
JohnP
I'm trying to track down where it gets mucked up.
@JerryCoffin - "Texas" sized truck...so start at Hummer and go up. Got it.
 
Edward
Edward
9:08 PM
@JohnP Or you could just increase velocity. Hitting an armadillo at 120mph really annoys them.
 
Jerry Coffin
Jerry Coffin
@JohnP Hummers are really pretty puny. Really want to start here:
 
Edward
Edward
Shouldn't that have an Aggies sticker on it?
 
Jerry Coffin
Jerry Coffin
@Edward It probably does (on the other side).
 
JohnP
JohnP
@Edward - I hit an armadillo at 45+ mph on my bicycle. Effer just laughed at me as I tumbled around.
 
Edward
Edward
@JohnP They're vengeful but not without a sense of humor.
Much like the inventors of Java.
 
JohnP
JohnP
9:12 PM
ok, I put alert(data); and alert(id); right after the var command and it doesn't show those. Wonder if it's even getting called?
 
Alex Lieberman
Alex Lieberman
updated my code with what i feel is proper formatting, but its way too spacey
 
JohnP
JohnP
nm. reloading page helps.
 
Jamal
Jamal
@AlexLieberman It does, because all those newlines are unneeded. And in Java, the opening brace goes on the same line as the statement, not on its own line.
 
JohnP
JohnP
nmX2. I'm an effing idiot.
 
Alex Lieberman
Alex Lieberman
@Edward thanks so much - howd u do that so fast!
 
Edward
Edward
9:20 PM
@AlexLieberman I use a real editor. :)
 
Alex Lieberman
Alex Lieberman
Is it free?
 
Edward
Edward
Yes, free and open source. I use vim.
 
Alex Lieberman
Alex Lieberman
My teacher taught me the way I just posted saying its fairly standard - however he also made the newline exception cause when we submitted programs he never asked for digital copies so he read all code on paper
Zero computers the whole class lol
Thanks Ill get it
 
Edward
Edward
You're better off without them. Computers will only make your head hurt. :)
 
Jerry Coffin
Jerry Coffin
@Edward Not true. Drop one, and it can also make your toe hurt.
 
Alex Lieberman
Alex Lieberman
9:29 PM
Got it thanks a lot!
 
Jerry Coffin
Jerry Coffin
@AlexLieberman You got Vim? Now your real headaches start!
 
Alex Lieberman
Alex Lieberman
LOL
I cannot wait.
 
Jerry Coffin
Jerry Coffin
Let me start you off with the command you need above all others: :q
3
The quick cure to nearly all problems with Vim.
 
Alex Lieberman
Alex Lieberman
Okay :P
 
Jamal
Jamal
And I use Word to turn tabs to spaces. Haters gonna hate.
 
Alex Lieberman
Alex Lieberman
9:36 PM
LOL
 
Jamal
Jamal
And coming from the guy with 5900+ edits.
 
syb0rg
syb0rg
Updated (now includes benchmarking results): codereview.stackexchange.com/a/54726/27623
@Jamal Thanks, I was trying to figure out how to do that before I pushed the edit.
 
Jamal
Jamal
I got the idea from an MSE post that I bountied. It's around there somewhere...
 
Captain Obvious
Captain Obvious
10:02 PM
0
Q: MySQL Structure - Need some feedback

user3465843I am trying to create a movie database (wiki style) and I am stuck on the database structure. I would like some help and suggestions please. Here is my basic idea: movie_table +---------------+--------------+------+-----+--------------------+-------+ | Field | Type | Null | Key ...

mysql data-structures database
0
Q: Class that implements a queue using two stacks

kmauneI am looking for a review of my code that implements a MyQueue class which implements a queue using two stacks. public class MyQueue<T> { Stack<T> stackNewest, stackOldest; public MyQueue() { stackNewest = new Stack<T>(); stackOldest = new Stack<T>(); } public int size() { ...

java interview-questions queue stack
 
Captain Obvious
Captain Obvious
10:15 PM
0
Q: Responsive / CSS fixed and variable widths – Best Practice

BrandrallyCSS and responsiveness in multiple columns with fixed and scaleable elements can be done many ways. I have created a solution that seems to work, though I have no idea whether this is best practice. Really would appreciate the Stack Overflow community looking at it and providing some feedback. ...

css
 
Jamal
Jamal
10:45 PM
13
Q: Creating .cpp, .c, .h. and .java file templates

kmauneThis code builds template .cpp, .c, .h and .java files based on a file name and #include, import lines provided at the command line. The file opens after creation. I am looking for a review of this code and seeing if there is anything that can be more efficient. /* .cpp Example: * template...

c++ template
One more napalm, and each answerer will get a badge.
 
Corbin
Corbin
@syb0rg Sure, but I should warn you that all I know comes from a week long side-track in a information retrieval class. What I know is likely out dated compared to industry, and my memory is terrible. And, I have no experience actually implementing it. Just a vague "oh you would theoretically do this" overview. Wikipedia is probably a safer bet, but I'll gladly pretend to know what I'm talking about :p.
 
Yuushi
Yuushi
@JerryCoffin Heresy!
 
Jerry Coffin
Jerry Coffin
@Yuushi Hardly the first time I've suffered that accusation.
 
Edward
Edward
And it won't be the last.
 
Jerry Coffin
Jerry Coffin
@Edward Guess it's a good thing I no longer have to worry about the inquisition coming after me.
 
Edward
Edward
11:00 PM
 
Jerry Coffin
Jerry Coffin
@Edward Some do.
 
Yuushi
Yuushi
oh wow, python.org got a facelift
 
Corbin
Corbin
Oooo wow, it did. I see they also went the live shell route. Pretty nifty.
 
syb0rg
syb0rg
@Corbin Sounds good. So I've gone ahead and implemented my hackish NLP stuff into my project using the O(n) method instead of binary. It works great on stuff like "what is today". But then you get a bit more complicated and it falls apart. I wouldn't even know where to start implementing "what day is it 3 days from now".
That's where I need semantics to come in.
 
Corbin
Corbin
@syb0rg Ah... in all honesty, I'm not quite sure how to accomplish that. I think the first few steps would be determining if something is a question or a statement (i.e. "what time is it?" vs "set the time to 18:05"). The good news is that if you're dealing with only questions, and only a small amount of them ,then you don't evne have to worry about this, especially if your commands are relatively logically disjoint.
For example if you have "what day is 3 days from now?" but you also allow the question "what do i have scheduled 3 days from now?" it means you have to actually figure out what's being asked heuristically. If you just have 1 day related question then you can just see the world day and jump all over it
(It's worth noting that I'm highly talking out of my ass right now -- more of a "this is the first thing that comes to mind" more so than a "this is how people actually do it" lol)
 
syb0rg
syb0rg
11:08 PM
lol
 
Corbin
Corbin
:p
 
syb0rg
syb0rg
Unfortunately, I'm not dealing with only questions, nor a small amount of them...
 
Corbin
Corbin
Well, it doesn't matter if it's a small amount or not, but more so if their interpretations have room for overlap.
And you have to remember that computers aren't magic. There's never anything that is going to be just a simple little algorithm that lets your program answer all kinds of complex questions. Each and every individual capability still has to be programmed.
So if you're aiming for your program to be able to do 5000 things, you have a long, long road ahead of you :/
Although, I imagine the feature recognition and mapping to desired functionality will be much more complicated than actual functionality implementation.
 
Edward
Edward
Haven't yet gotten it, but it was recommended to me.
 
syb0rg
syb0rg
@Corbin Hmm, it looks like I need to find a half-decent library to use.
@Edward FYI, I did a benchmark which included your function: codereview.stackexchange.com/a/54726/27623
 
Corbin
Corbin
11:15 PM
Yeah, that would probably be a huge help. Unfortunately I have no idea where to even start looking for something like that :). I suppose one easy solution would to use a neural network library, and just heuristically map phrases to features, and then use those features to determine what functionality to provide. That's just the first thing that comes to mind again though, so... yeah..... lol
 
syb0rg
syb0rg
Ellogen seems to be the only FOSS C NLP library out there: ellogon.org
 
Edward
Edward
@syb0rg Interesting with the benchmark. Was that with or without storing the string lengths?
 
Yuushi
Yuushi
@syb0rg Time to use a different language? :)
 
Edward
Edward
If you're inclined to, you could try this:
 
syb0rg
syb0rg
@Edward Without, I left it as is.
 
Edward
Edward
11:20 PM
int str_end(const char *s, const char *t)
{
    int diff = strlen(s)-strlen(t);
    return diff > 0 && 0 == strcmp(&s[diff], t);
}
 
syb0rg
syb0rg
@Yuushi I've been thinking to switch to C++ for a bit now. There seems to be a lot more libraries and resources out there geared toward it. Luckily, the switch from C to C++ wouldn't be too hard.
If I decide to go that route, that is.
 
Corbin
Corbin
C is fun to use for the sake of using it, but in terms of actually getting things done, I would take C++ any day.
3
 
syb0rg
syb0rg
Search string: this is a longer string and may cause certain functions to take a bit longer to process
End string: a bit longer to process
syb0rg's function average runtime: 3.1573e-08
ao2130's function average runtime: 2.48394e-07
Edward's function average runtime: 3.68303e-08
Edward2's function average runtime: 2.62519e-08
Josay's function average runtime: 3.26991e-07
@Edward Your revised function now beats mine.
@Corbin C still has a small speed boost over C++ though.
 
Yuushi
Yuushi
@syb0rg Not always true...compare qsort vs std::sort for an example of that
 
Corbin
Corbin
@syb0rg I seriously doubt that. At least not in the hands of a skilled C++ developer.
There are certain features of C++ that have inherent overheads compared to C, but those features are also features not present in C.
And luckily you have to go fairly far out of your way to get into those features.
 
Jerry Coffin
Jerry Coffin
11:27 PM
@Corbin If anything, it's rather the opposite: you have to write C almost completely insanely to have even a hope of getting it to keep up with even fairly well written C++.
 
Corbin
Corbin
@JerryCoffin eh, I don't know if I'd call it insane. But yeah. You have to sacrifice all generality and basically code C with an asm mindset to meaningfully beat C++.
 
syb0rg
syb0rg
 
Jerry Coffin
Jerry Coffin
@Corbin Just for example, to get inline code generation even close to as good as templates provide quite routinely, essentially your only choice in C is to write nearly everything as a macro. IMO, that qualifies as utterly insane.
 
Captain Obvious
Captain Obvious
0
Q: Using RegEx word boundary with IP filter

BlexyI was having issues with a RegEx. Mainly I wanted to create a filter to only find these IP addresses: 216.54.215.0 216.54.215.1 216.54.215.2 216.54.215.3 216.54.215.4 216.54.215.5 216.54.215.6 216.54.215.7 216.54.215.8 216.54.215.9 216.54.215.10 216.54.215.11 216.54.215.12 216.54.215.13 216.54.2...

regex
 
Corbin
Corbin
@JerryCoffin Ah, yeah that's definitely deeply into "insane" territory x.x
 
Jerry Coffin
Jerry Coffin
11:31 PM
@syb0rg That's not really comparing C to C++. That's comparing C compiled with a C compiler to (still almost entirely) C compiled with a C++ compiler.
 
Corbin
Corbin
@syb0rg I'm not sure if you're arguing that C and C++ have no meaningful performance difference, or what your point is with that link? GCC was written in C, so it's not even fair to compare that. 20 years of C baggage aren't going to magically turn into C++ with a recompile.
 
syb0rg
syb0rg
Well, even in the link C++ was only ~.3% slower than C. So nothing really...
 
Captain Obvious
Captain Obvious
0
Q: Everyone loves Fibbonacci

ckuhn203I was bored and burnt out on more serious projects.... until I saw this Computerphile video on YouTube. Now I'm inspired again. Now I feel like spending some time implementing that recursive algorithm in a little console program. Fortunately, recursion is unbearably slow in this case. So, I ended...

c# beginner mathematics
 
Corbin
Corbin
I think a C++ compiler written in C++ could actually be significantly faster than a C++ compiler written in C. The problem with that article isn't the results, it's the premise. GCC was originally written in C, and they just recently began writing it in C++. This means that it's ~98% C and 2% C++. This just means that--as Jerry said--you're just compiling C with a C++ compiler, and nothing of consequence is really happening.
(Just realized technically it's a C compiler being compiled from 'C++' code, but same sentiment stands.)
 
Jerry Coffin
Jerry Coffin
I'd compare Clang to gcc instead. Although I wouldn't say Clang is the best or cleanest C++ code in the world, at least it really is C++. baptiste-wicht.com/posts/2012/11/gcc-4-7-clang-3-1-eddic.html
 
Edward
Edward
11:42 PM
Yes, and Clang is significantly faster than gcc. I know which codebase I'd rather work on!
I've been evaluating C++ for embedded systems work and if we avoid RTTI and exceptions, it's actually better than C in most measures.
 
Corbin
Corbin
I didn't actually know that clang is faster than gcc for compiling. That's rather interesting. (I would still use clang anyway though -- I love clang compared to gcc :/)
 
Alex L
Alex L
Hey all!
 
Jerry Coffin
Jerry Coffin
Hi Alex.
 
ckuhn203
ckuhn203
Hey Alex.
 
Corbin
Corbin
Hello, Alex
 
Captain Obvious
Captain Obvious
11:44 PM
0
Q: Search a file system for files that match a given pattern

Ricky WilsonMy concerns with this code: Is there a more efficient way to find files by pattern in Python? Does os.walk() work in Windows? Is this code pythonic? Should search() be broken down into 2 functions? Is it stupid to handle IOError exception by printing the error msg to the console? #!/usr/...

python optimization clean-code search file-system
0
Q: Improved minimal webcrawler - why is it so slow?

BjornasmI recently made a webcrawler that i submitted here for a review (Minimal webcrawler - bad structure and error handling?). With that help i've made a much cleaner and better(?) webcrawler. The only problem i have is that this crawler is extremely slow compared to the other one (13.2s for a depth ...

python
 
Alex L
Alex L
And how is everyone doing today!?
 
Corbin
Corbin
Pretty well. How about you?
 
ckuhn203
ckuhn203
Better now.
How are you?
 
Jerry Coffin
Jerry Coffin
@AlexL I'd guess that "everyone here" is doing a lot better (on average) than just "everyone (on earth)", anyway. :-|
 
Corbin
Corbin
I just came across the Steam Summer Sale on Reddit, and now I'm trying to stop myself from compulsively buying every game on sale x.x
@JerryCoffin Way to make it depressing. :p
 
Jerry Coffin
Jerry Coffin
11:46 PM
@Corbin I'm sorry.
 
Alex L
Alex L
@JerryCoffin You're tricky, however you can't say that without taking a survey of every single person alive and asking them how happy they are! Then compare ;)
I'm pretty good thanks :) Just wrote up a nice answer :)
 
Yuushi
Yuushi
@Corbin why did you have to remind me!
 
Corbin
Corbin
:D
 
Jerry Coffin
Jerry Coffin
@AlexL Did you miss the "I'd guess" part?
 
Yuushi
Yuushi
phew, everything on there I'd want I already have
 
Alex L
Alex L
11:49 PM
Oh, why yes, that's what fast reading and dyslexia give you
 
Jerry Coffin
Jerry Coffin
@AlexL Hmmm...so you're at least a little like the dyslexic agnostic insomniac who laid awake at night and wondered whether there was really a dog?
 
Corbin
Corbin
@Yuushi that's what I thought... Then somehow I found myself buying DMC and Far Cry 3 Blood Dragon, despite having little interest in playing a quick time event game without a controller, and having already played FC3 for days and days until I could barely stand it.
 
Yuushi
Yuushi
don't try and play DMC without a controller
 
Corbin
Corbin
Yeah /
 
ckuhn203
ckuhn203
Good answer from a new user.
1
A: Everyone loves Fibbonacci

Pierre MenardIndentation and formatting are fine, as is the algorithm itself. Your naming is inconsistent, compare n and Value; _value and _FnMinus1. There are a variety of conventions to follow, but consistency is the most important thing. _FnMinus1 and _FnMinus2 are only used in one method, so they can b...

 
Corbin
Corbin
11:52 PM
I wish I weren't lazy enough to figure out how to get my PS3 controller to work on my PC. I hear it's possible, but meh... Seems like a bother.
 
Yuushi
Yuushi
I got one working a while back. It was...a pain.
 
Corbin
Corbin
I need to just pick up a Xbox 360 controller on the cheap.
 
Alex L
Alex L
@JerryCoffin You could say so!
 
Yuushi
Yuushi
likewise
 
Jerry Coffin
Jerry Coffin
@AlexL I could say all kinds of things (but many wouldn't be true). :-)
 
Corbin
Corbin
11:54 PM
Wow, apparently 360 controllers are still $30+. That's annoying.
 
Alex L
Alex L
@JerryCoffin You're a wise man, aren't ya!?
 
Jerry Coffin
Jerry Coffin
@AlexL Most think of me more as a wise donkey (only they use some other word for "donkey"). The rest just think of me as a donkey (again, using some other word).
 
Alex L
Alex L
Haha :D
 
Edward
Edward
@JerryCoffin They also use some other word for "wise"
 
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