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Articles indexed in March 2010

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  • Help in C with integers

    - by inferno2991
    You need to use division and remainder by 10. Consider this example: 163 divided by 10 is 16 remainder 3 16 divided by 10 is 1 remainder 6 1 divided by 10 is 0 remainder 1 You'll notice the remainder is always the last digit of the number that's being divided. Now figure out a way to do this in C... How do i do it in c Help :(

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  • Forms Auth requireSSl and Https

    - by zsharp
    If my login pages are https, does it matter if "requireSSl" is true in the forms tab of the web config? Currently I am redirecting pages with IIS to HTTPS. When I set requiressl it seems to cause problems. Can someone put the two settings in perspective. thanks

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  • Do condition variables still need a mutex if you're changing the checked value atomically?

    - by Joseph Garvin
    Here is the typical way to use a condition variable: // The reader(s) lock(some_mutex); if(protected_by_mutex_var != desired_value) some_condition.wait(some_mutex); unlock(some_mutex); // The writer lock(some_mutex); protected_by_mutex_var = desired_value; unlock(some_mutex); some_condition.notify_all(); But if protected_by_mutex_var is set atomically by say, a compare-and-swap instruction, does the mutex serve any purpose (other than that pthreads and other APIs require you to pass in a mutex)? Is it protecting state used to implement the condition? If not, is it safe then to do this?: // The writer protected_by_mutex_var = desired_value; some_condition.notify_all(); With the writer never directly interacting with the reader's mutex? If so, is it even necessary that different readers use the same mutex?

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  • "Low level" project using Java

    - by Tammy Wilson
    I'm wondering if it would make sense to do some low level or OS stuff(a project) using Java. Reason why I ask is because I would like to expand my knowledge in Java and I'm into doing stuff like file compressor, bulk file renamer, etc. Are there any examples out there that I can look at or play with? Or should I just be using C or C++ instead? Thanks!

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  • Maven assembly plugin and adding system dependencies to the classpath

    - by NG
    Hi, I have some dependencies which I am providing myself. The jars are in the resources directory. In my pom they are scoped as system and I include the path to them. However, when I jar things up using the assembly plugin and use <addClasspath>true</addClasspath> It doesn't add the path of the system jars. How can I get them to be included automatically? Thanks

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  • Drawing multiple lines with Java Swing

    - by rize
    I'm learning drawing lines with Java Swing in order to draw a labyrinth. I can draw one line at a specified position and it shows just fine. But when I want to draw multiple lines, only the last one shows. My code: public class LabyrinthGUI extends JFrame { ... Line line1 = new Line(0, 0, 0, 50); this.getContentPane().add(line1); } public class Line extends JPanel{ private int x1, y1, x2, y2; public Line(int x1, int y1, int x2, int y2) { this.x1 = x1; this.y1 = y1; this.x2 = x2; this.y2 = y2; } public void paintComponent (Graphics g) { g.drawLine(x1, y1, x2, y2); } I probably have to refresh something, to display all the lines drawn with for-loop, but don't know what.

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  • trim a string in jquery

    - by amit
    i need to trim a string to its first 100 characters using jquery/javascript. also is it possible to scan a string and look for a particular combination of keywords such as #key? thanks a lot for the help.

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  • Would you hire a foreigner ? [closed]

    - by user229999
    Hi! I'd like to dedicate this question (hope it's not a subjective) especially to people who own their companies. Would you (and why) hire a foreigner, which experience is documented in CV and portfolio, which can communicate in english (with grammar mistakes, but still)? I am writing in the name of all these guys looking for great opportunities abroad, living in countries which do not give you any opportunities at all. Is it real, to be hired like a programmer (PHP, Ruby, Python, C#) in country like UK, USA, Nederland, Sweeden or even Germany, if you're a foreigner? Please response in two categories: a) foreigner with engineer degree, zend certificate, few open source projects b) foreigner without any degree, with nice portfolio, and few big projects created Also, does First Certificate in English aka FCE matter for you ?

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  • Cancel UITouch Events When View Covered By Modal UIViewController

    - by kkrizka
    Hi there, I am writing an application where the user has to move some stuff on the screen using his fingers and drop them. To do this, I am using the touchesBegan,touchesEnded... function of each view that has to be moved. The problem is that sometimes the views are covered by a view displayed using the [UIViewController presentModalViewController] function. As soon as that happens, the UIView that I was moving stops receiving the touch events, since it was covered up. But there is no event telling me that it stopped receiving the events, so I can reset the state of the moved view. The following is an example that demonstrates this. The functions are part of a UIView that is being shown in the main window. It listens to touch events and when I drag the finger for some distance, it presents a modal view that covers everything. In the Run Log, it prints what touch events are received. - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { NSLog(@"touchesBegan"); touchStart=[[touches anyObject] locationInView:self]; } - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { CGPoint touchAt=[[touches anyObject] locationInView:self]; float xx=(touchAt.x-touchStart.x)*(touchAt.x-touchStart.x); float yy=(touchAt.y-touchStart.y)*(touchAt.y-touchStart.y); float rr=xx+yy; NSLog(@"touchesMoved %f",rr); if(rr > 100) { NSLog(@"Show modal"); [viewController presentModalViewController:[UIViewController new] animated:NO]; } } - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { NSLog(@"touchesEnded"); } - (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event { NSLog(@"touchesCancelled"); } But when I test the application and trigger the modal dialog to be displayed, the following is the output in the Run Log. [Session started at 2010-03-27 16:17:14 -0700.] 2010-03-27 16:17:18.831 modelTouchCancel[2594:207] touchesBegan 2010-03-27 16:17:19.485 modelTouchCancel[2594:207] touchesMoved 2.000000 2010-03-27 16:17:19.504 modelTouchCancel[2594:207] touchesMoved 4.000000 2010-03-27 16:17:19.523 modelTouchCancel[2594:207] touchesMoved 16.000000 2010-03-27 16:17:19.538 modelTouchCancel[2594:207] touchesMoved 26.000000 2010-03-27 16:17:19.596 modelTouchCancel[2594:207] touchesMoved 68.000000 2010-03-27 16:17:19.624 modelTouchCancel[2594:207] touchesMoved 85.000000 2010-03-27 16:17:19.640 modelTouchCancel[2594:207] touchesMoved 125.000000 2010-03-27 16:17:19.641 modelTouchCancel[2594:207] Show modal Any suggestions on how to reset the state of a UIView when its touch events are interrupted by a modal view?

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  • adobe air stream end on line (EOF)

    - by goseta
    Hi to all, I need to read a file, which has an "n" number of lines, I need to know when reading the end of each line, so I can store the line in an array, ok so far I have while(stream.position < stream.bytesAvailable) { char = stream.readUTFBytes(1); if(char == "\n") { array.push(line); line = ""; } else { line += char; } } my question is, always the end of line will be "\n"?? how can I be sure if is not an other character like \r??, there is an other character for end of line??, thanks for any help!!!

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  • Why doesn't this (translated) VB.NET code work?

    - by ropstah
    I had a piece of C# code converted, but the translated code isn't valid... Can somebody help out? C# <table> <% Html.Repeater<Hobby>("Hobbies", "row", "row-alt", (hobby, css) => { %> <tr class="<%= css %>"> <td><%= hobby.Title%></td> </tr> <% }); %> </table> VB <% Html.Repeater(of Jrc3.BLL.Product)(Model.ProductCollectionByPrcAutoKey, "row", "row-alt", Function(product, css) Do %> <tr class="<%= css %>"> <td><%= hobby.Title%></td> </tr> <% End Function)%>

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  • AsyncTask won't stop even when the activity has destroyed

    - by Raja
    Hi all, I have an AsyncTask object which starts executing when the activity is created and does stuff in the background (downloads upto 100 images). Everything works fine but there is this peculiar behavior which i'm not able to understand. For eg: when the android screen's orientation changes then the activity is destroyed and created again. So I override the onRetainNonConfigurationInstance() method and save all the downloaded data executed in the AsyncTask. My purpose of doing this is to not have AsyncTask run each time activity is destroyed-created during orientation changes, but as i can see in my logs the previous AsynTask is still executing. (The data is saved correctly though) I even tried to cancel the AsynTask in the onDestroy() method of the activity but the logs still show AsynTask as running. This is really strange behavior and would really be thankful if someone can tell me the correct procedure to stop/cancel the AsynTask. Thanks

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  • Windows XP seemingly out of resources but plenty of free RAM and swap available

    - by Artem Russakovskii
    This one has been bothering me for years and so far I couldn't find an adequate solution. The problem occurs on pretty much every XP install I've done. After opening a variety of programs or the system running existing programs for a while, Windows seemingly runs out of resources, without telling me. There's ALWAYS free RAM. For example, it just happened to me and I had over a gig of free RAM. There are no viruses, spyware, or other nonsense - it is a Windows resource problem, but the question is which resource is it running out of, how does one pinpoint it, and how does one prevent it? Sometimes, this happens after running specific programs - for example, today it happened when I started Photoshop CS4 and Flash CS4 at the same time. I also noticed that restarting The Bat (email client by Ritlabs) seems to get rid of this problem for a while but again, this happens on machines that don't even have The Bat installed. So what does exactly happen? The symptoms are: pressing alt-tab doesn't bring up the list anymore - it just jumps to the next window instantly, very similar to the way Alt-Esc works, however in this case, it's due to not having enough resources to bring up the alt-tab menu random programs would randomly crash, citing random errors, out of memory errors, system resources, inabilities to do system calls, etc. random programs would start missing random parts - for example, Firefox top menus might disappear, pull up partial selections, or not pull up anymore altogether. IE might lose a few of its toolbars. Some programs might fail to redraw or would just plain go gray where the UI used to be. Windows itself never complains about running out of RAM, virtual memory, or anything at all, yet it's running out of something. The only clue I was able to find and apply the fix today was this Desktop Heap Limitation. I haven't confirmed the fix working as not enough time passed. In the meantime, what are everyone's thoughts?

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  • CSS: Chrome and Safari seem to 'add' border to width, while IE, Firefox & Opera don't

    - by Michiel
    Hey guys, I'm trying to achieve cross-browser consistency for my website, but I have been trying all day now and its driving me nuts (0.38 am here in Europe now..). It's about this page: http://www[insert-dot-here]geld[insert-dash-here]surfen[insert-dot-here]nl/uitbetalingen.html (please note that I prefer this URL not to be made crawlable for seo-bots) If you view this page in IE, Firefox or Opera, everything is fine, but in Chrome and Safari the tables are a little out of line (as you'll probably clearly notice). What seems to be the problem?; it appears to me that in Chrome and Safari the left and right border (2px) in total are added to the set table width, while in the other browsers the border is considered part of the width. The (most) relevant CSS-lines are the following ones (from the tabel.css-file, also available through the page's source file): table.uitbetaling { margin: 11px 18px 10px 19px; border: 1px solid #8ccaee; width: 498px; padding: 0; } table.uitbetaling img, table.uitbetaling td { margin: 0; border: 0; padding: 0; width: 496px; } table.uitbetaling tr { margin: 0; border: 0; padding: 0 1px 0 0; } So basically I have used a table-structure to organize images, like this; (the class of the table is 'uitbetaling') <table> <tr><td><img /></td></tr> <tr><td><img /></td></tr> ... <tr><td><img /></td></tr> </table> If, here, I set the width of 'table.uitbetaling' and 'table.uitbetaling img, table.uitbetaling td' to the same value (e.g. both 496 or 498), the 'problem' in Chrome and Safari is solved, however in Firefox the right side border is than blank. Because the right-side border can't 'fit' in anymore. 'img' and 'td' must be at least 2px more narrow than 'table.uitbetaling' for the right-border be visible in Firefox. Is there any way to solve this? Thanks so much in advance for your insights!!

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  • CentOS: make python 2.6 see django

    - by NP
    In a harrowing attempt to get mod_wsgi to run on CentOS 5.4, I've added python 2.6 as an optional library following the instructions here. The configuration seems fine except that when trying to ping the server the Apache log prints this error: mod_wsgi (pid=20033, process='otalo', application='127.0.0.1|'): Loading WSGI script '...django.wsgi'. [Sat Mar 27 16:11:45 2010] [error] [client 171.66.52.218] mod_wsgi (pid=20033): Target WSGI script '...django.wsgi' cannot be loaded as Python module. [Sat Mar 27 16:11:45 2010] [error] [client 171.66.52.218] mod_wsgi (pid=20033): Exception occurred processing WSGI script '...django.wsgi'. [Sat Mar 27 16:11:45 2010] [error] [client 171.66.52.218] Traceback (most recent call last): [Sat Mar 27 16:11:45 2010] [error] [client 171.66.52.218] File "...django.wsgi", line 8, in [Sat Mar 27 16:11:45 2010] [error] [client 171.66.52.218] import django.core.handlers.wsgi [Sat Mar 27 16:11:45 2010] [error] [client 171.66.52.218] ImportError: No module named django.core.handlers.wsgi when I go to my python2.6 install's command line and try 'import django', the module is not found (ImportError). However, my default python 2.4 installation (still working fine) is able to import successfully. How do I point python 2.6 to django? Thanks in advance.

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  • tricky SQL when joining

    - by Erik
    I've two tables, shows and objects. I want to print out the latest objects, and the shownames for them. Right now I'm doing it this way: SELECT MAX(objects.id) as max_id, shows.name, shows.id FROM shows, objects WHERE shows.id = objects.showId GROUP BY shows.name however, if I also want to fetch the episode of the object I can't put it like SELECT object.episode [...], because then wont automatically select the object which is MAX(objects.id), so my question is how to do that? If you haven't already figured out my tables they're like this: Shows id name and also: Objects id name episode season showId Using MySQL. Thanks!

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  • Windows 7 Aero Theme Progress Bar Bug?

    - by jmatthias
    I have ran into what I consider to be a progress bar bug on Windows 7. To demonstrate the bug I created a WinForm application with a button and a progress bar. In the button's 'on-click' handle I have the following code. private void buttonGo_Click(object sender, EventArgs e) { this.progressBar.Minimum = 0; this.progressBar.Maximum = 100; this.buttonGo.Text = "Busy"; this.buttonGo.Update(); for (int i = 0; i <= 100; ++i) { this.progressBar.Value = i; this.Update(); System.Threading.Thread.Sleep(10); } this.buttonGo.Text = "Ready"; } The expected behavior is for the progress bar to advance to 100% and then the button text to change to 'Ready'. However, when developing this code on Windows 7, I noticed that the progress bar would rise to about 75% and then the button text would change to 'Ready'. Assuming the code is synchronous, this should not happen! On further testing I found that the exact same code running on Windows Server 2003 produced the expected results. Furthermore, choosing a non aero theme on Windows 7 produces the expected results. In my mind, this seems like a bug. Often it is very hard to make a progress bar accurate when the long operation involves complex code but in my particular case it was very straight forward and so I was little disappointed when I found the progress control did not accurately represent the progress. Has anybody else noticed this behavior? Has anybody found a workaround?

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  • How to interact between GameCanvas and LCDUI elements on J2ME?

    - by Santiago
    The thing is I writing a J2ME program that fisrt of all show a "menu" using graphics interface (GameCanvas) and when the user select one item, I need to setCurrent that item (ex. a List), but when return from the List (it could be because the user push a Command "Menu" Item) I need to show the menu again. The real problem when the menu show again, the keyPressed() listener of gamecanvas object stop working. Basically I have: A Midlet object with: GameCanvas object instance A List object instance I don't understand how that works, I didn't find tutorial that share low and high graphics-level APIs on one Midlet.

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  • How to stop emacs from replacing underbar with <- in ess-mode

    - by SetJmp
    ess-mode is "Emacs speaks statistics." This mode is useful for editing programs for R or Splus (two separate statistics packages). In my buffer, when ever I type '_' the character is replaced with "<-" which is very frustrating. Is there a emacs lisp statement to turn off this behavior? Thanks, SetJmp emacs: 22.1.1 ess-mode release (unknown)

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  • pushViewController causes memory leak

    - by hookjd
    The Leaks application tells me that the following function is causing a memory leak and I can't figure out why. -(void)viewGameList { GameListController *gameListViewController = [[GameListController alloc] initWithNibName:@"GameListController" bundle:nil]; gameListViewController.rootController = self; [self.navigationController pushViewController:gameListViewController animated:YES]; [gameListViewController release]; } It tells me that this line causes a 128 byte memory leak. [self.navigationController pushViewController:gameListViewController animated:YES]; Am I missing something obvious?

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  • Pointer argument to boost python

    - by piotr
    What's the best way to make a function that has pointer as argument work with boost python? I see there are many possibilities for return values in the docs, but I don't know how to do it with arguments. void Tesuto::testp(std::string* s) { if (!s) cout << " NULL s" << endl; else cout << s << endl; } >>> t.testp(None) NULL s >>> >>> s='test' >>> t.testp(s) Traceback (most recent call last): File "<stdin>", line 1, in <module> Boost.Python.ArgumentError: Python argument types in Tesuto.testp(Tesuto, str) did not match C++ signature: testp(Tesuto {lvalue}, std::string*) >>>

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