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  • gcc memory alignment pragma

    - by aaa
    hello. Does gcc have memory alignment pragma, akin #pragma vector aligned in Intel compiler? I would like to tell compiler to optimize particular loop using aligned loads/store instructions. Thanks

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  • Concept of GUI's - Centralized or decentralized

    - by wvd
    Hello all, Since a few months I've been learning Erlang, and now it was time to do some basic GUI. After some quick research I saw there was an interesting library called 'wxi' (based on Fudgets of Haskell) which uses a different approach on GUI's. No central loop, every widget processes it's own events and handles it's own data. What do you guys think about this? It looks like it kind of can be efficient in languages such as Erlang, and it's an interesting approach. William van Doorn

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  • C# Multithreaded Domain Design

    - by Thijs Cramer
    Let's say i have a Domain Model that im trying to make compatible with multithreading. The prototype domain is a game domain that consists of Space, SpaceObject, and Location objects. A SpaceObject has the Move method and Asteroid and Ship extend this object with specific properties for the object (Ship has a name and Asteroid has a color) Let's say i want to make the Move method for each object run in a seperate thread. That would be stupid because with 10000 objects, i would have 10000 threads. What would be the best way to seperate the workload between cores/threads? I'm trying to learn the basics of concurrency, and building a small game to prototype a lot of concepts. What i've already done, is build a domain, and a threading model with a timer that launches events based on intervals. If the event occurs i want to update my entire model with the new locations of any SpaceObject. But i don't know how and when to launch new threads with workloads when the event occurs. Some people at work told me that u can't update your core domain multithreaded, because you have to synch everything. But in that case i can't run my game on a dual quadcore server, because it would only use 1 CPU for the hardest tasks. Anyone know what to do here?

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  • Cannot force https on certain pages using mod rewrite

    - by Demian
    force https RewriteCond %{HTTPS} =off [NC] RewriteCond %{REQUEST_URI} ^/?(bingo/account|bank)(.*)$ RewriteRule ^.*$ https://%{HTTP_HOST}/%1 [R=301,L] RewriteCond %{HTTPS} =on [NC] RewriteCond %{REQUEST_URI} !^/?(bingo/account|bank).*$ RewriteRule ^.*$ http://%{HTTP_HOST}%{REQUEST_URI} [R=301,L] it's a nightmare, when i go to /bank i get a redirect loop error or weird redirects, in fact, not the expected behavior, what should i do?

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  • jumping lines in a file using c

    - by Nadav Stern
    hello i am trying to sort a textual file using c programming language, in order to sort the file i am using a unique key, i need to be able to jump from line to line in order to sort the file , the problem is that i do not know if there is a command in c which let me jump from the first line to lets say the 20 line for example the only solution which i know for it is to use each time fscanf with a loop but this solution is not very effective thanks in advance for your time.

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  • Microsoft Reporting: Setting subreport parameters in code

    - by Svish
    How can I set a parameter of a sub-report? I have successfully hooked myself up to the SubreportProcessing event, I can find the correct sub-report through e.ReportPath, and I can add datasources through e.DataSources.Add. But I find no way of adding report parameters?? I have found people suggesting to add them to the master report, but I don't really want to do that, since the master report shouldn't have to be connected to the sub-report at all, other than that it is wrapping the sub-report. I am using one report as a master template, printing name of the report, page numbers etc. And the subreport is going to be the report itself. And if I could only find a way to set those report parameters of the sub-report I would be good to go... Clarification: Creating/Defining the parameters is not the problem. The problem is to set their values. I thought the natural thing to do was to do it in the SubreportProcessing event. And the SubreportProcessingEventArgs do in fact have a Parameters property. But it is read only! So how do you use that? How can I set their value?

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  • Passing parameters to eventListener function

    - by bryan sammon
    I have this function check(e) that I'd like to be able to pass parameters from test() when I add it to the eventListener. Is this possible? Like say to get the mainlink variable to pass through the parameters. Is this even good to do? I put the javascript below, I also have it on jsbin: http://jsbin.com/ujahe3/9/edit function test() { if (!document.getElementById('myid')) { var mainlink = document.getElementById('mainlink'); var newElem = document.createElement('span'); mainlink.appendChild(newElem); var linkElemAttrib = document.createAttribute('id'); linkElemAttrib.value = "myid"; newElem.setAttributeNode(linkElemAttrib); var linkElem = document.createElement('a'); newElem.appendChild(linkElem); var linkElemAttrib = document.createAttribute('href'); linkElemAttrib.value = "jsbin.com"; linkElem.setAttributeNode(linkElemAttrib); var linkElemText = document.createTextNode('new click me'); linkElem.appendChild(linkElemText); if (document.addEventListener) { document.addEventListener('click', check/*(WOULD LIKE TO PASS PARAMETERS HERE)*/, false); }; }; }; function check(e) { if (document.getElementById('myid')) { if (document.getElementById('myid').parentNode === document.getElementById('mainlink')) { var target = (e && e.target) || (event && event.srcElement); var obj = document.getElementById('mainlink'); if (target!= obj) { obj.removeChild(obj.lastChild); }; }; }; };

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  • Flash AS3: Loading bar not finished when movie starts playing

    - by flashey
    Hi, I'm using the same code I always use for preloading another swf but it's not working this time. The problem this time is that when the loading bar gets to 16% every time you can hear the movie I'm loading playing in the background. I can just add a stop to the first frame of the movie I'm loading ("trial_1.swf") but how do I tell it to go to the second frame once it has loaded? Any help is much appreciated! Here's my code: var myrequest:URLRequest=new URLRequest ("trial_1.swf"); var myloader:Loader = new Loader(); myloader.load(myrequest); myloader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, progresshandler); function progresshandler(myevent:ProgressEvent):void { var myprogress:Number=myevent.target.bytesLoaded/myevent.target.bytesTotal; bar_mc.scaleX=myprogress*1.5; myTextField_txt.text = Math.round(myprogress*100)+"%" } myloader.contentLoaderInfo.addEventListener(Event.COMPLETE, finished); function finished(myevent:Event):void { addChild(myloader); removeChild(myTextField_txt) removeChild(bar_mc); removeChild(logo_mc); }

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  • Easy way to check if item is in list?

    - by befall
    Hey guys, I'm writing a search algorithm in C++, and one of the things I need to do is have a few if statements that check cells above, below, left of, and right of. Each time a cell is found to be open and added to the stack, I want it added to a list of cells already checked. I want to be able to say in the if loop if(thisCell is not in checkedCells). Any simple ideas? Thanks!

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  • Pause and resume thread drawing to SurfaceView

    - by fhucho
    I am developing a chess game for Android (http://androidchess.appspot.com), using SurfaceView for the chessboard. I have a drawing Thread, that draws the chessboard in a loop. The problem is that when there are no active animations (this is more that 90% of time), it makes no sense to waste CPU and battery for drawing. How should I solve this? Maybe somehow pausing and resuming the drawing Thread?

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  • best way to add and delete text lines with jquery product configurator

    - by Daniel White
    I am creating a product configurator with Jquery. My users can add custom text lines to their product. So you could create say... 4 text lines with custom text. I need to know what the best way to add and delete these lines would be. Currently I have the following code for adding lines... //Add Text Button $('a#addText').live('click', function(event) { event.preventDefault(); //Scroll up the text editor $('.textOptions').slideUp(); $('#customText').val(''); //count how many items are in the ul textList var textItems = $('ul#textList li').size(); var nextNumber = textItems + 1; if(textItems <= 5) { //Change input to reflect current text being changed $('input#currentTextNumber').val(nextNumber); //Append a UL Item to the textList $('ul#textList').append('<li id="textItem'+nextNumber+'">Text Line. +$5.00 <a class="deleteTextItem" href="'+nextNumber+'">Delete</a></li>'); //Scroll down the text editor $('.textOptions').slideDown(); }else { alert('you can have a maximum of 6 textual inputs!'); } }); I'm probably not doing this the best way, but basically i have an empty UL list to start with. So when they click "Add Text Line" it finds out how many list elements are in the unordered list, adds a value of 1 to that and places a new list element with the id TextItem1 or TextItem2 or whatever number we're on. The problem i'm running into is that when you click delete item, it screws everything up because when you add an item again all the numbers aren't correct. I thought about writing some kind of logic that says all the numbers above the one you want deleted get 1 subtracted from their value and all the numbers below stay the same. But I think i'm just going about this the wrong way. Any suggestions on the easiest way to add and delete these text lines is appreciated.

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  • collect text file information using c#

    - by riad
    Dear all, I have a text file .let name is abc.txt .The file have info like this jani stay in USA karim stay in France fara stay in UK Now i need to collect the information.the name is as nameString and the address is addressString.I have to put those information on anywhere else.So, i need all the name and address in a for loop. Can anybody pls help me to collect this info. Thanks in advance Riad

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  • Custom Model Validator for MVC

    - by scottrakes
    I am trying to add a custom model validation at the property level but need to pass in two values. Below is my class definition and validation implementation. When it runs, the "value" in the IsValid method is always null. I can get this working at the class level but the property level is causing me issues. What am I missing? Event Class: public class Event { public int? EventID {get;set;} [ValidPURL("EventID", "PURLValue")] public string PURLValue { get; set; } ... } Validation Class [AttributeUsage(AttributeTargets.All, AllowMultiple = true, Inherited = true)] public sealed class ValidPURL : ValidationAttribute { private const string _defaultErrorMessage = "Web address already exist."; private readonly object _typeId = new object(); public ValidPURL(int eventID, string purlValue) : base(_defaultErrorMessage) { EventID = eventID; PURLValue = purlValue; } public int EventID { get; private set; } public string PURLValue { get; private set; } public override object TypeId { get { return _typeId; } } public override string FormatErrorMessage(string name) { return String.Format(CultureInfo.CurrentUICulture, ErrorMessageString, EventID, PURLValue); } public override bool IsValid(object value) { PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(value); object eventIDValue = properties.Find(EventID, true /* ignoreCase */).GetValue(value); object purlValue = properties.Find(PURLValue, true /* ignoreCase */).GetValue(value); [Some Validation Logic against the database] return true; } } Thank for the help!

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  • Highlight overlapping text in JQuery

    - by Jasie
    I've got this plain HTML: "Many things are in my room: a bed, a desk, and a computer." And these phrases: "things are" "are in my room" "room: a bed" In JQuery, is there some way to loop through the phrase list, and highlight the phrases as they appear in the text, and have the overlap delineated by color, or border, etc? I know there are simple highlighters but that won't do the trick. Maybe something with overlaying opacities? Thanks!

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  • pass object from JS to PHP and back

    - by Radu
    This is something that I don't think can't be done, or can't be done easy. Think of this, You have an button inside a div in HTML, when you click it, you call a php function via AJAX, I would like to send the element that start the click event(or any element as a parameter) to PHP and BACK to JS again, in a way like serialize() in PHP, to be able to restore the element in JS. Let me give you a simple example: PHP: function ajaxCall(element){ return element; } JS: callbackFunction(el){ el.color='red'; } HTML: <div id="id_div"> <input type="button" value="click Me" onClick="ajaxCall(this, callbackFunction);" /> </div> So I thing at 3 methods method 1. I can give each element in the page an ID. so the call to Ajax would look like this: ajaxCall(this.id, callbackFunction); and the callback function would be: document.getElementById(el).color='red'; This method I think is hard, beacause in a big page is hard to keep track of all ID's. method 2. I think that using xPath could be done, If i can get the exact path of an element, and in the callback function evaluate that path to reach the element. This method needs some googling, it is just an ideea. method 3. Modify my AJAX functions, so it retain the element that started the event, and pass it to the callback function as argument when something returns from PHP, so in my AJAX would look like this: eval(callbackFunction(argumentsFromPhp, element)); and the callback function would be: callbackFunction(someArgsFromPhp, el){ el.color='red'; // parse someArgsFromPhp } I think that the third option is my choise to start this experiment. Any of you has a better idea how I can accomplish this ? Thank you.

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  • onTouchListener togglebutton, ignores first press?

    - by Paul
    I have a togglebutton that should run code when I press it down and more code when I let go. However the first time I press and let go nothing happens. Every other time it is fine, why is this? I can see the method only runs the first time when I let go of the button (it does not trigger any onTouch part of the method though), how can I get around this, and have it work for the first press? public void pushtotalk3(final View view) { ((ToggleButton) view).setChecked(true); ((ToggleButton) view).setChecked(false); view.setOnTouchListener(new OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { //if more than one call, change this code int callId = 0; for (SipCallSession callInfo : callsInfo) { callId = callInfo.getCallId(); Log.e(TAG, "" + callInfo.getCallId()); } final int id = callId; switch (event.getAction()) { case MotionEvent.ACTION_DOWN: { //press ((ToggleButton) view).setBackgroundResource(R.drawable.btn_blue_glossy); ((ToggleButton) view).setChecked(true); OnDtmf(id, 17, 10); OnDtmf(id, 16, 9); return true; } case MotionEvent.ACTION_UP: { //release ((ToggleButton) view).setBackgroundResource(R.drawable.btn_lightblue_glossy); ((ToggleButton) view).setChecked(false); OnDtmf(id, 18, 11); OnDtmf(id, 18, 11); return true; } default: return false; } } }); } EDIT: the xml for the button: <ToggleButton android:id="@+id/PTT_button5" android:layout_width="0dp" android:layout_height="fill_parent" android:text="@string/ptt5" android:onClick="pushtotalk5" android:layout_weight="50" android:textOn="Push To Talk On" android:textOff="Push To Talk Off" android:background="@drawable/btn_lightblue_glossy" android:textColor="@android:color/white" android:textSize="15sp" /> EDIT: hardware problem, can't test solutions atm.

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  • Why am I getting "Message sent to deallocated object" in Objective-C?

    - by Dave C
    I have several buttons on my app that are being created dynamically. They are all pointed at the button click event when pressed. When the button pressed method is called, the sender's tag (int value) is parsed into the controller's house ID. It works with one of the buttons — the first one created, to be specific — but the others throw the following error: -[CFNumber intValue]: message sent to deallocated instance 0xc4bb0ff0 I am not releasing these buttons anywhere in my code. I haven't set them to autorelease or anything like that. I'm just wondering why they are doing this on the click. The button click event: - (IBAction) ButtonClick: (id) sender { HouseholdViewController *controller = [[HouseholdViewController alloc] initWithNibName:@"HouseholdViewController" bundle:nil]; controller.delegate = self; controller.HouseID = [(NSInteger)[(UIButton *)sender tag] intValue]; //this line throws an error controller.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal; [self presentModalViewController:controller animated:YES]; [controller release]; } Where I am creating the buttons: UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom]; button.frame = CGRectMake(MyLongInScreenCoords, MyLatInScreenCoords, 50, 50); UIImage *buttonImageNormal = [UIImage imageNamed:@"blue_pin.png"]; UIImage *strechableButtonImageNormal = [buttonImageNormal stretchableImageWithLeftCapWidth:50 topCapHeight:50]; [button setBackgroundImage:strechableButtonImageNormal forState:UIControlStateNormal]; [self.view addSubview:button]; button.tag = [NSNumber numberWithInt:[[words objectAtIndex: i] intValue]]; ButtonPoints[CurrentHouseCount][0] = button; ButtonPoints[CurrentHouseCount][1] = [NSValue valueWithCGPoint:CGPointMake(MyActualLat, MyActualLong)]; [button addTarget:self action:@selector(ButtonClick:) forControlEvents:UIControlEventTouchUpInside]; CurrentHouseCount++;

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  • Help with django filters

    - by Cato Johnston
    In a django template, I want to get an value from the first object in a list's field. I have the following code {{ list.object|first.field }} But it results in an error. Is there a way to achieve this without writing a loop or doing it in the view?

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  • Unexpected output from Bubblesort program with MSVC vs TCC

    - by Sujith S Pillai
    One of my friends sent this code to me, saying it doesn't work as expected: #include<stdio.h> void main() { int a [10] ={23, 100, 20, 30, 25, 45, 40, 55, 43, 42}; int sizeOfInput = sizeof(a)/sizeof(int); int b, outer, inner, c; printf("Size is : %d \n", sizeOfInput); printf("Values before bubble sort are : \n"); for ( b = 0; b &lt; sizeOfInput; b++) printf("%d\n", a[b]); printf("End of values before bubble sort... \n"); for ( outer = sizeOfInput; outer &gt; 0; outer-- ) { for ( inner = 0 ; inner &lt; outer ; inner++) { printf ( "Comparing positions: %d and %d\n",inner,inner+1); if ( a[inner] &gt; a[inner + 1] ) { int tmp = a[inner]; a[inner] = a [inner+1]; a[inner+1] = tmp; } } printf ( "Bubble sort total array size after inner loop is %d :\n",sizeOfInput); printf ( "Bubble sort sizeOfInput after inner loop is %d :\n",sizeOfInput); } printf ( "Bubble sort total array size at the end is %d :\n",sizeOfInput); for ( c = 0 ; c &lt; sizeOfInput; c++) printf("Element: %d\n", a[c]); } I am using Micosoft Visual Studio Command Line Tool for compiling this on a Windows XP machine. cl /EHsc bubblesort01.c My friend gets the correct output on a dinosaur machine (code is compiled using TCC there). My output is unexpected. The array mysteriously grows in size, in between. If you change the code so that the variable sizeOfInput is changed to sizeOfInputt, it gives the expected results! A search done at Microsoft Visual C++ Developer Center doesn't give any results for "sizeOfInput". I am not a C/C++ expert, and am curious to find out why this happens - any C/C++ experts who can "shed some light" on this? Unrelated note: I seriously thought of rewriting the whole code to use quicksort or merge sort before posting it here. But, after all, it is not Stooge sort... Edit: I know the code is not correct (it reads beyond the last element), but I am curious why the variable name makes a difference.

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  • How should I format an HTTPService result in Flex so that it is accessible for a pie chart?

    - by Eric Reynolds
    I feel like this should be simple, however everywhere I look online someone does something different. I am doing a small charting application to track download statistics, and want to put the data into a pie chart. I am new to Flex, so if my code is horrible I apologize. <s:HTTPService id="service" url="admin/stats/totalstats.php" fault="service_faultHandler(event)" result="service_resultHandler(event)" /> What is the best resultFormat for this purpose, and if I am assigning the returned value to an ActionScript variable, should it be an ArrayList? ArrayCollection? Heres a sample of the XML being returned from the HTTPService <DownloadStats> <year count="24522" year="2008"> <month count="20" month="5" year="2008" full="May 2008"> <day count="2" month="5" day="20" year="2008"/> <day count="1" month="5" day="21" year="2008"/> <day count="9" month="5" day="22" year="2008"/> <day count="1" month="5" day="23" year="2008"/> <day count="1" month="5" day="29" year="2008"/> <day count="1" month="5" day="30" year="2008"/> <day count="5" month="5" day="31" year="2008"/> </month> ... </year> <DownloadStats> Any help is appreciated, Thanks, Eric R. EDIT: I decided that it would be helpful to see how I am transferring the data to the chart to make sure I am not doing something wrong there either. <mx:PieChart id="pieChart"> <mx:PieSeries nameField="year" field="count" labelPosition="callout" displayName="Total" dataProvider="{graphData}"/> </mx:PieChart>

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  • WPF: Exception if i add a eventhandler to a MenuItem (in a ListBox)

    - by user437899
    Hi, i wanted a contextmenu for my ListBoxItems. So i created this: <ListBox Name="listBoxName"> <ListBox.ItemTemplate> <DataTemplate> <TextBlock Text="{Binding UserName}" /> </DataTemplate> </ListBox.ItemTemplate> <ListBox.ItemContainerStyle> <Style TargetType="ListBoxItem"> <Setter Property="ContextMenu"> <Setter.Value> <ContextMenu> <MenuItem Header="View" Name="MenuItemView" /> </ContextMenu> </Setter.Value> </Setter> </Style> </ListBox.ItemContainerStyle> </ListBox> This works great. I have the contextmenu for all items, but if i want to add a click-eventhandler to the menuitem, like this: <MenuItem Header="View" Name="MenuItemView" Click="MenuItemView_Click" /> I get a XamlParseException when the window is created. InnerException: The Object System.Windows.Controls.MenuItem cannot be converted to type System.Windows.Controls.Grid It throws only the exception if i add a event-handler. The event-method is empty.

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  • What does PHP stand for?

    - by Rob
    PHP Hypertext Preprocessor So the abbreviation is an infinite loop of itself. PHP = PHP Hypertext Preprocessor Hypertext Preprocessor Which is = PHP Hypertext Preprocessor Hypertext Preprocessor Hypertext Preprocessor Or easier to understand: <? $php = $php . "Hypertext Preprocessor"; echo $php; ?> So uh, my question is: What the hell?

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  • Reading same file from multiple threads in C#

    - by Gustavo Rubio
    Hi. I was googling for some advise about this and I found some links. The most obvious was this one but in the end what im wondering is how well my code is implemented. I have basically two classes. One is the Converter and the other is ConverterThread I create an instance of this Converter class that has a property ThreadNumber that tells me how many threads should be run at the same time (this is read from user) since this application will be used on multi-cpu systems (physically, like 8 cpu) so it is suppossed that this will speed up the import The Converter instance reads a file that can range from 100mb to 800mb and each line of this file is a tab-delimitted value record that is imported to another destination like a database. The ConverterThread class simply runs inside the thread (new Thread(ConverterThread.StartThread)) and has event notification so when its work is done it can notify the Converter class and then I can sum up the progress for all these threads and notify the user (in the GUI for example) about how many of these records have been imported and how many bytes have been read. It seems, however that I'm having some trouble because I get random errors about the file not being able to be read or that the sum of the progress (percentage) went above 100% which is not possible and I think that happens because threads are not being well managed and probably the information returned by the event is malformed (since it "travels" from one thread to another) Do you have any advise on better practices of implementation of threads so I can accomplish this? Thanks in advance.

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