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• Is there a way to disable calls to Runtime.checkRestricted on the GAE Java development server under Eclipse?

  - by Thomas Becker

  I'm one of those guys who step through their code a lot during development. Beginning with version 1.6.4 of the GAE Java development server, the server has been instrumented with calls to a function named Runtime.checkRestricted. This causes two inconveniences when I step through my code: 1) Whenever I step into a function, the debugger goes into the function Runtime.checkRestricted (for which there is no source code) at least once, often multiple times. 2) Whenever I step over a function call which has a large call tree underneath it, then it takes a very long time for the debugger to come back. (That's always a problem in the Eclipse Java debugger, but now it's really bad.) For me, all this causes a serious drain on productivity. Is there any way to disable this instrumentation, or to prevent the debugger from stepping into it? I am using Eclipse with the GAE plugin.

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• How can I pass data from an aspx page to an ascx modal popup?

  - by Erick B

  I'm fairly new to ASP.NET and trying to learn how things are done. I come from a C# background so the code-behind portion is easy, but thinking like a web developer is unfamiliar. I have an aspx page that contains a grid of checkboxes. I have a button that is coded via a Button_Click event to collect a list of which rows are checked and create a session variable out of that list. The same button is referenced (via TargetControlID) by my ascx page's ModalPopupExtender which controls the panel on the ascx page. When the button is clicked, the modal popup opens but the Button_Click event is never fired, so the modal doesn't get its session data. Since the two pages are separate, I can't call the ModalPopupExtender from the aspx.cs code, I can't reach the list of checkboxes from the ascx.cs code, and I don't see a way to populate my session variable and then programmatically activate some other hidden button or control which will then open my modal popup. Any thoughts?

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• In C#, how do you send a refresh/repaint message to a WPF grid or canvas?

  - by xarzu

  How do you send a refresh message to a WPF grid or canvas? In other words, I have noticed while in debug mode, I can write code that sends a line to the display and then, if that line is not right, I can adjust it -- but the previous line is still there. Now, the code I am writing sends information to the display based on what the user clicks. So this must mean that the display is not refreshed each time a new set of lines and boxes and text goes to the grid or canvas in WPF. Using C# code, how do you send a refresh/repaint message to a WPF grid or canvas?

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• Semantic Diff Utilities

  - by rubancache

  I'm trying to find some good examples of semantic diff/merge utilities. The traditional paradigm of comparing source code files works by comparing lines and characters.. but are there any utilities out there (for any language) that actually consider the structure of code when comparing files? For example, existing diff programs will report "difference found at character 2 of line 125. File x contains v-o-i-d, where file y contains b-o-o-l". A specialized tool should be able to report "Return type of method doSomething() changed from void to bool". I would argue that this type of semantic information is actually what the user is looking for when comparing code, and should be the goal of next-generation progamming tools. Are there any examples of this in available tools?

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• VB.NET equivalent of Timeout.bas Module from VB6

  - by user557889

  Hi all. I am looking for the VB.NET code of a very handy little *.bas file I used to use in Visual Basic 6. The file was called timeout.bas and it was the greatest module ever to me. I want to switch to start using VB.NET finally but this single file is holding me back. Trying to use .NET without it is like crippling me. Can someone, anyone please make this code work in .NET for me? It's only a couple lines: Attribute VB_Name = "Module1" Sub timeout(duration) starttime = Timer Do While Timer - starttime < duration DoEvents Loop End Sub Basically you add that timeout.bas file which contains that code and you can just do: Text1.text = "hello" timeout .5 Text1.text "World!" It's so awesome. Anyone PLEASE re-do it in VB.NET for me! Thanks!

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• Matrix multiplication in java (RE-POST)

  - by Chapax

  Apologies for the re-post; the earlier time I'd posted I did not have all the details. My colleague, who quit the firm was a C# programmer, was forced to write Java code that involved (large, dense) matrix multiplication. He's coded his own DataTable class in Java, in order to be able to a) create indexes to sort and join with other DataTables b) do matrix multiplication. The code in its current form is NOT maintainable/extensible. I want to clean up the code, and thought using something like R within Java will help me focus on business logic rather than sorting, joining, matrix multiplication, etc. Plus, I'm very new to the concept of DataTable; I just want to replace the DataTable with 2D arrays, and let R handle the rest. (I currently do not know how to join 2 large datasets in java very efficiently Please let me know what you think. Also, are there any simple examples that I can take a look at?

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• NSNotification center may not respond to -object ?

  - by blackkettle

  Hi, I'm trying to make simple use of the NSNotification center inside my iPhone application, but I seem to be doing something wrong in this case. I was under the impression that it was possible to retrieve an object associated with a particular message, or at least a reference to the object, but using the following example code I'm getting a warning, "NSNotification center may not respond to -object" - (void)addNewBookmark:(NSNotificationCenter *)notification { Bookmark *newBookMark = (Bookmark *)[notification object]; //Do some stuff with the bookmark object } Indeed, when I compile and run the code, basically nothing I try to do with the contents of the object actually gets carried out - it's simply ignored. The post code is as follows, - (IBAction)save:(id) sender{ //Sending the message with the related object [[NSNotificationCenter defaultCenter] postNotificationName:@"addNewBookmark" object:bookmark]; } and the bookmark object itself is just a dictionary. I also tried using the "userInfo" argument and passing the bookmark object through that, but the result was the same. How should I be doing this? What am I doing wrong?

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• TinyMCE: Double forecolor and backcolor buttons?

  - by petsson

  I'm having a problem using TinyMCE. In IE8, the forecolor and backcolor, for some random reason, is displayed twice. See picture below. Source code (I add the forecolor and backcolor in theme_advanced_buttons2): tinyMCE.init({ mode : "exact", elements : "<%= editArea.ClientID %>", custom_shortcuts : false, language : "en", relative_urls : false, convert_urls : false, forced_root_block : false, force_p_newlines : true, force_br_newlines : false, fix_nesting : true, plugins : "pagebreak,table", pagebreak_separator : '<div style="page-break-after:always;"></div>', theme : "advanced", skin : "o2k7", skin_variant : "blue", width : "540", height : "470", theme_advanced_toolbar_location : "top", theme_advanced_statusbar_location : "none", theme_advanced_font_sizes : "1,2,3,4,5,6,7", font_size_style_values : "0.6em,0.8em,1em,1.2em,1.5em,2em,3em", theme_advanced_buttons1 : "newdocument,|,copy,cut,paste,|,hr,pagebreak,|,undo,redo,|,code|,image,code", theme_advanced_buttons2 : "fontselect,fontsizeselect,|,bold,italic,underline,strikethrough,|,justifyleft,justifycenter,justifyright,justifyfull,|,forecolor,backcolor", // <-- This gives me double forecolor and backcolor theme_advanced_buttons3 : "table,|,row_props,cell_props,|,col_before,col_after,row_before,row_after,|,split_cells,merge_cells,|,delete_col,delete_row," });

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• Using the Antenna and J2ME Polish preprocessors interchangeably and setting a variable value

  - by walter

  I have J2ME code, which I want to be able to compile using the J2ME Polish preprocessor or the wtkpreprocessor (antenna). They mostly use the same directives so it usually works, but ... When I want to insert an URL value in the Java code this gives a problem. In Antenna the code would look like this: //#ifdef my.url //# System.out.println("My Url"); //#expand String location = "%my.url%"; //#else System.out.println("Default"); String location = "http://www.some.default.url.com"; //#endif and in J2ME Polish it would look like this: //#ifdef my.url:defined //# System.out.println("My Url"); //#= String location = "${my.url}"; //#else System.out.println("Default"); String location = "http://www.some.default.url.com"; //#endif I want some way in which I can use the preprocessors interchangeably and still be able to set the url in the build.xml, any ideas?

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• Strcpy() corrupts the copied string in Solaris but not Linux

  - by strictlyrude27

  Hi all, I'm writing a C code for a class. This class requires that our code compile and run on the school server, which is a sparc solaris machine. I'm running Linux x64. I have this line to parse (THIS IS NOT ACTUAL CODE BUT IS INPUT TO MY PROGRAM): while ( cond1 ){ I need to capture the "while" and the "cond1" into separate strings. I've been using strtok() to do this. In Linux, the following lines: char *cond = NULL; cond = (char *)malloc(sizeof(char)); memset(cond, 0, sizeof(char)); strcpy(cond, strtok(NULL, ": \t\(){")); //already got the "while" out of the line will correctly capture the string "cond1".Running this on the solaris machine, however, gives me the string "cone1". Note that in plenty of other cases within my program, strings are being copied correctly. (For instance, the "while") was captured correctly. Does anyone know what is going on here?

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• GNU ld removes section

  - by Jonatan

  I'm writing a boot script for an ARM-Cortex M3 based device. If I compile the assembler boot script and the C application code and then combine the object files and transfer them to my device everything works. However, if I use ar to create an archive (libboot.a) and combine that archive with the C application there is a problem: I've put the boot code in a section: .section .boot, "ax" .global _start _start: .word 0x10000800 /* Initial stack pointer (FIXME!) */ .word start .word nmi_handler .word hard_fault_handler ... etc ... I've found that ld strips this from the final binary (the section "boot" is not available). This is quite natural as there is no dependency on it that ld knows about, but it causes the device to not boot correctly. So my question is: what is the best way to force this code to be included?

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• set date error on uidatepicker

  - by Matt Facer

  Hi guys, I've been stumped by the code below. I pass a string date to a UIDatePicker which seems to work on most devices, yet on some, it crashes the app. here's the code NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init]; [dateFormat setDateFormat:@"HH:mm"]; NSDate *date = [dateFormat dateFromString:dateStr]; [timePicker setDate:date]; [dateFormat release]; I have a function which passes the "dateStr" variable, as follows, dateStr = @"0:0"; I cannot see what's wrong - as it works for me! (iphone 3.1.3) but it doesnt work for my tester (ipod touch 3.1.3) Can anyone see anything wrong with the code? Thanks v much. any ideas?

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• jQuery UI AutoComplete remote json response question

  - by Greg-J

  I was using geonames.org to autocomplete city and state but found it to be far too slow to be reliable. My code is as follows, and does work (wait about 10 seconds to see the autocomplete results) Old (working) code here: http://jsbin.com/umewo3/2/edit Now I am using YQL as they provide a much quicker response. The issue is that I don't seem to understand how to properly map the response. You can see I am sending a well formed request, and getting the response back - but I am somehow not dealing with the response properly. New (broken) code here: http://jsbin.com/aqoke3/2/edit Any and all help appreciated.

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• JQuery - Form Submission

  - by user70192

  Hello, I have a web page that has a DIV and an IFRAME. When a user clicks a button in my DIV, I need to submit the web form that is hosted in my IFRAME. Both pages are hosted on the same server in the same directory. My code that attempts to submit the web form looks like this: $("#myIFrame").contents().find("form").submit(); When this code is called, I receive an error in IE that says: "Internet Explorer cannot display the webpage" In FireFox when I execute the code, I receive an error that says: "The connection was reset" In FireFox when I look at the error console I see: "Error: Permission denied for http://localhost:2995 to get property HTMLDocument.nodeType from ." What am I doing wrong?

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• Using Qtcreator (with Qwt), really basic stuff

  - by Dago

  I'm trying to make a Qt program using Qtcreator and Qwt for plotting. I've never used Qtcreator before. I've created a mainwindow and added a Qwtplot widget there (object name: qwtPlot). The widget shows up in the program when I compile and run it. But theres no mention of the qwtPlot object anywhere in the (autogenerated) code so I assume it is being added at compile time from the .ui xml file (or something). My question is that... how do I modify/change the qwtPlot object? Or where should I place the code. I'm having a hard time articulating my question but the question basically is "How do I do anything with the qwtPlot widget which is created (graphically) with Qtcreator?". I've checked some tutorials but in the tutorials they add the widgets manually in the code, but I'd like to use Qtcreator (because my UI will be fairly complicated). This whole Qtcreator is pretty confusing...

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• size of view not changing after frame change

  - by MikeNelson

  I have managed to do pretty complex things on iPhone but I am always stuck with views, frames, bounds, and simple stuff that defies any logic and don't work as expected. I have a self.view in my code and it has a lot of subviews on it. At some point of the code, I need to reduce the frame vertically to a specific size and later put it back as before. Then I have this code: [UIView beginAnimations:nil context:NULL]; [UIView setAnimationDuration:1.5]; // frame is changing to a newHeight (other parameters are the same as before) self.view.frame = CGRectMake (0, 0, originalWidth, newHeight); [UIView commitAnimations]; The result is simply, nothing. The view continues as before. The same size, the same position. No change. Why this kind of thing happens? how to solve that?

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• JQuery $.post not working properly

  - by drupop

  Can't seem to find a fix for this issue I have the following code on the onclick event of an a html tag: AddVacationToCart( { ServiceSupplier:'Kiki', ProductId:'0;11968;0;0;187;1', Name:'Excelsior', NumberOfStars:'*****', TotalPrice:'1620.00', PriceLevelName:'Standard', Currency:'EUR', Status:'', StartDate:'2010-06-17', EndDate:'2010-06-24', NumberOfNights:'7', Rooms:[ { NumberOfAdults:'2', NumberOfChildren:'0', ChildrenAges:[] } ] },'0;11968;0;0;187;1');return false; I also have this code: function AddVacationToCart(vacation, id) { $.post("/ShoppingCart.mvc/AddVacation", vacation, function(data) { var div = $("div[id*=cartv" + id + "]"); var removeFromCartHtml = "Adaugat"; $(div).html(removeFromCartHtml); }, "json"); } This is the code in my ShoppingCartController AddVacation Action: [AcceptVerbs(HttpVerbs.Post)] public ActionResult AddVacation(Vacation test) { ... } The post works as in the (Vacation) test object gets filled with the corresponding properties like ServiceSupplier, ProductId, Name etc. Except the properties of my Rooms field do not get their corresponding values. Any ideeas?

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• Delete or comment out non-working JUnit tests?

  - by Chris Knight

  I'm currently building a CI build script for a legacy application. There are sporadic JUnit tests available and I will be integrating a JUnit execution of all tests into the CI build. However, I'm wondering what to do with the 100'ish failures I'm encountering in the non-maintained JUnit tests. Do I: 1) Comment them out as they appear to have reasonable, if unmaintained, business logic in them in the hopes that someone eventually uncomments them and fixes them 2) Delete them as its unlikely that anyone will fix them and the commented out code will only be ignored or be clutter for evermore 3) Track down those who have left this mess in my hands and whack them over the heads with the printouts of the code (which due to long-method smell will be sufficently suited to the task) while preaching the benefits of a well maintained and unit tested code base

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• PHP Inverting content adding (sorting)

  - by Adrian

  Hello, I have this code which will include "template.php" file from inside each of these folders: "content/templates/id1", "content/templates/id2", "content/templates/id3" etc. etc. $page_file = basename(__FILE__, ".php"); require("content/" . $page_file . "/content.php"); $iterator = new RecursiveIteratorIterator( new RecursiveDirectoryIterator($page_path), RecursiveIteratorIterator::SELF_FIRST); foreach($iterator as $file) { if($file->isDir()) { include strtoupper($file . '/template.php'); } } This code works pretty well, the problem is I want to inverse the content adding, meaning that I want first "content/templates/id9/template.php" included before "id8/template.php" and so on till the first.. How can I do this by modifying the code above? A million thanks!

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• Struct in C, are they efficient?

  - by pygabriel

  I'm reading some C code like that: double function( int lena,double xa,double ya, double za, double *acoefs, ..., int lenb,double xb,double yb, double zb, double *bcoefs, ..., same for c, same for d ) This function is called in the code mor than 100.000 times so it's performance-critical. I'm trying to extend this code but I want to know if it's efficient or not (and how much this influences the speed) to encapsulate all the parameters in a struct like this struct PGTO { int len; double x,y,z ; double *acoefs } and then access the parameters in the function.

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• where should we place HIDDEN variable in JSP

  - by micheal

  I need to use Hidden variables in my JSP for session tracking. this is the code: <input type="hidden" name="REQ_TOKEN" value="<%=session.getAttribute("SESN_TOKEN").toString()%>" /> i am using this to compare the request token with session token, so only when both are equal i will evaluate that request otherwise i will throw an error. Now the problem is, when i place this code inside <form></form> tags, it is working fine. Unfortunately there are some JSPs in my application where we dont have tag(I know that sounds weird!). where can i place my code so that it will work? Cant i use Hidden variables without FORM tag???

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• jPlayer problem in Firefox - also throws error from jQuery?! Not related to OGG support.

  - by wolftron

  I've been working on a small SVG website, http://docroot.ca/ - the SVG part has been working out pretty well. In the current site, jPlayer is called and given an mp3. jPlayer functions properly in Safari, Chrome, and Opera, but not Firefox which throws the following two errors: Error: not well-formed Source File: Line: 1, Column: 191 Source Code: <div xmlns="http://www.w3.org/1999/xhtml"><embed name="jqjp_flash_0" id="jqjp_flash_0" src="js/Jplayer.swf" width="0" height="0" bgcolor="#ffffff" quality="high" FlashVars="id=jPlayerBox&fid=jqjp_flash_0&vol=80" allowScriptAccess="always" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" /></ and: Error: uncaught exception: [Exception... "An invalid or illegal string was specified" code: "12" nsresult: "0x8053000c (NS_ERROR_DOM_SYNTAX_ERR)" location: "https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js Line: 122"] I'm not sure why the latter happens at all. The former might have something to do with jPlayer's .swf component. The weird thing is the same code works in http://willshown.com/dw, but not in http://docroot.ca. Any guesses as to what direction to take this problem?

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• problem in adding data to an array in Objective-C!!!

  - by anurag

  I am grappling with adding an NSData object to a NSMutable array. The code is executing fine but it is not adding the objects in the array.The code is as follows: NSData * imageData = UIImageJPEGRepresentation(img, 1.0); int i=0; do{ if([[tempArray objectAtIndex:i] isEqual:imageData]) { [tempArray removeObjectAtIndex:i]; } else { [tempArray addObject:imageData]; //NSLog(@"ANURAG %@",[tempArray objectAtIndex:0]); } }while(i<[tempArray count]) ; The NSLog statement shows the object added is null however the value of imageData is not null. I have defined the tempArray as a static memeber of the class in which this code is written. Is it because of the size of the data object as it is the data of an image????

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• WaitForSingleObject( )

  - by Rakesh Agarwal

  I have got myself stuck into a really amazing issue here.The code is like as below. class A { public: A(){ m_event = CreateEvent(NULL, false, false, NULL); // create an event with initial value as non-signalled m_thread = _beginthread(StaticThreadEntry, 0, this); // create a thread } static void StaticThreadEntry(A * obj) { obj->ThreadEntry(); } void ThreadEntry(); }; void A::ThreadEntry() { WaitforSingleObject(m_event,INFINITE); } int main() { A a; SetEvent(m_event); // sets the event to signalled state which causes the running thread to terminate WaitForSingleObject(m_thread, INFINITE); // waits for the thread to terminate return 0; } Problem : When the above code is run,sometimes( 1 out of 5 ) it hangs and the control gets stuck in the call to WaitforSingleObject()( inside the main function ).The code always calls SetEvent() function to ensure that the thread would terminate before calling Wait() function. I do not see any reason why it should ever hang?

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• Detecting that the stack is full in C/C++

  - by Martin Kristiansen

  When writing C++ code I've learned that using the stack to store memory is a good idea. But recently I ran into a problem: I had an experiment that had code that looked like this: void fun(unsigned int N) { float data_1[N*N]; float data_2[N*N]; /* Do magic */ } The code exploted with a seqmentation fault at random, and I had no idea why. It turned out that problem was that I was trying to store things that were to big on my stack, is there a way of detecting this? Or at least detecting that it has gone wrong?

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