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• Aborted core dumped C++

  - by avd

  I have a large C++ function which uses OpenCV library and running on Windows with cygwin g++ compiler. At the end it gives Aborted(core dumped) but the function runs completely before that. I have also tried to put the print statement in the end of the function. That also gets printed. So I think there is no logical bug in code which will generate the fault. Please explain. I am also using assert statements.But the aborted error is not due to assert statement. It does not say that assertion failed. It comes at end only without any message. Also the file is a part of a large project so I cannot post the code also.

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• I can't delete record in Codeigniter

  - by jomblo

  I'm learning CRUD in codeigniter. I have table name "posting" and the coloumns are like this (id, title, post). I successed to create a new post (both insert into database and display in the view). But I have problem when I delete my post in the front-end. Here is my code: Model Class Post_Model extends CI_Model{ function index(){ //Here is my homepage code } function delete_post($id) { $this->db->where('id', $id); $this->db->delete('posting'); } } Controller Class Post extends CI_Controller{ function delete() { $this->load->model('Post_Model'); $this->Post_Model->delete_post("id"); redirect('Post/index/', 'refresh'); } } After click "delete" in the homepage, there was nothing happens. While I'm looking into my database, my records still available. Note: (1) to delete record, I'm following the codeigniter manual / user guide, (2) I found a message error (Undefined variable: id) after hiting the "delete" button in the front-end Any help or suggestion, please

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• node.js simply does not run

  - by user309641

  I installed and ran node.js just fine on my mac, but even if I do this on windows chdir c:\testfolder node example.js then I get this error: node.js:201 throw e; // process.nextTick error, or 'error' event on first tick Error: Cannot find module 'c:\testfolder\example.js' at Function._resolveFilename <module.js:322:11> at Function._load <module.js:299:25> at Array.0 <module.js:499:10> at EventEmitter._tickCallback <node.js:192:40> I'm only even trying to run the example code on the nodejs website: var http = require('http'); http.createServer(function (req, res) { res.writeHead(200, {'Content-Type': 'text/plain'}); res.end('Hello World\n'); }).listen(1337, '127.0.0.1'); console.log('Server running at http://127.0.0.1:1337/');

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• How do you pass an enum by reference?

  - by Darkenor

  I have an enum with four keys I'm taking as input for an interface program and I'd like to pass the enum by value to the interface function, which has become quite long. The enum is like this: enum MYKEYS { W, S, O, L }; There's also a boolean array that I have to pass by reference, which is also a little tricky. bool key[4] = { false, false, false, false }; Does anyone know the proper syntax to pass both of these as reference in a function, similar to: function(int & anintreference);

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• When is a Cocoa callback given controll?

  - by Kaspa

  Hi, I've been searching around the web for an answer to this one, but was unable to find an answer, on the other side I think it's something quite common thus there is a possibility I'm missing some keywords here. Anyhow, the problem is as follows: When is control given to a callback function in ObjC (iPhone)? Does it happen after control is given to a high up in the hierarchy class responsible for the runloop? Can it occur in the middle of another function call being executed? As an example, let's take the NSURLConnection, we don't know or can't predict when it's going to call didReceiveResponse or the other callback methods, can it be the case that didReceiveResponse get's called when I'm in the middle of another function? (highly doubt that but was unable to find information on callbacks wating for the end of the run loop) Cheers, Kaspa

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• jQuery: Listen to changes within a DIV and act accordingly

  - by Chris

  I have a function that grabs an XML document and transforms it according to an XSL document. It then places the result into a div with the id laneconfigdisplay. What I want to do is, separate to the transformation logic, setup a jQuery change event for that div so I can tell when it has changed, and run some jQuery code. I have tried the following, but it does not work! $(document).ready(function() { $('#laneconfigdisplay').change(function() { alert('woo'); }); //Do XML / XSL transformation here }); <!-- HTML code here --> <div id="laneconfigdisplay"></div> What am I doing wrong?

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• Delete current row in a <table> with jQuery

  - by omgkurtnilsen

  I have a table that lists a bunch of customers. The last cell is an ajax delete button. I want the row containing the deleted customer to be deleted through jQuery. <table> <tr><td>Customer info 1</td><td><a href="javascript:deleteCustomer(1);">Delete</a></td> <tr><td>Customer info 2</td><td><a href="javascript:deleteCustomer(2);">Delete</a></td> function deleteCustomer(customerId) { $.post("somepage.php", {cid:customerId}, function(data){ //...delete the row that called the function... }

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• jQuery - Using .one() with hover

  - by Jared

  Is there any way to get a hover function to only execute once? This is what I'm currently trying: $('#ask').live('hover', function() { $('#homesearch-after').hide(300); $.doTimeout( 300, function() { hideClosedSearchLink(); showHomeSearch(); }); }); But that's not working. How can I only get this hover to activate once? I've tried changing .live with .one and .bind... resulting in nothingness.

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• How do I implement jQuery image cycle loops on rollover for multiple thumbnail sets on a page?

  - by Kendrick Ledet

  Here is the Javascript I currently have <script type="text/javascript"> $(function() { $('.slideshow').hover( function() { $('.slides').cycle('resume'); }, function() { $('.slides').cycle('pause'); } ); $('.slides').cycle({ fx: 'fade', speed: .3, timeout: 280, next: '#next', prev: '#prev' }).cycle("pause"); }); </script> It works; but the thing is it works for all thumbnail sets on the page, and whenever I mouseover on one set of images, every other set of images loops as well. I do see that this is because I'm targeting classes, but my jQuery experience is quite limited so I have no idea how to only target a single instance of each class without effecting the others, and I can't go in and hardcode id's because my thumbnails and amount of videos on each page are determined dynamically via this Django template. http://pastebin.com/nf42bSAx I would greatly appreciate any help, as this is essential for my project (open source media platform). Thank you.

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• How can i call NStimer form one viewcontroller from unother viewcontroller?

  - by Bala

  At first time i call the timer like this in Third viewcontroller timer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(targetMethod) userInfo:nil repeats:NO]; Then timer called the targetMethod -(void)targetMethod { First * sVC = [[First alloc] initWithNibName:@"First" bundle:[NSBundle mainBundle]]; [self presentModalViewController:sVC animated:YES]; [sVC release]; [timer invalidate]; } First viewcontroller opened.. In First viewcontroller had one button.In button action i wrote (IBAction) Action:(id)sender { [self dismissModalViewControllerAnimated:YES]; Third *BVC=[[Third alloc]init]; [Bvc TimerStart]; Timestart is function i start timer in this function.. i want to call Third viewcontroller timer function this place } timer started..But view didn't open (first )viewcontroller....... Please help me......

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• jquery loop and compare values

  - by lgt

  Is it possible to use jqueries each loop in this form to dissolve hyperlinks? $(document).ready(function() { var toExclude =['http://www.google.com', 'http://example']; $.each(toExclude, function(key, value) { $("a[href='+value+']").replaceWith(function(){ var url=value; var matches = url.match(/^https?\:\/\/([^\/?#]+)(?:[\/?#]|$)/i); var domain = matches && matches[1]; return domain; }); }); });

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• jQuery DIV click, with anchors

  - by ANaimi

  To make click-able divs, I do: <div class="clickable" url="http://google.com"> blah blah </div> and then $("div.clickable").click( function() { window.location = $(this).attr("url"); }); I don't know if this is the best way, but it works perfectly with me, except for one issue: If the div contains a click-able element, such as <a href="...">, and the user clicks on the hyperlink, both the hyperlink and div's-clickable are called This is especially a problem when the anchor tag is referring to a javascript AJAX function, which executes the AJAX function AND follows the link in the 'url' attribute of the div. Anyway around this?

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• pointers in C with a #define

  - by milan

  The function: #define ASSOC(port) (*(volatile bit_field *) (&port)) The function call: #define SCLK ASSOC(PORTC).bit0 bit_field defined as a struct like this: typedef struct { unsigned char bit0 :1, bit1 :1, bit2 :1, bit3 :1, bit4 :1, bit5 :1, bit6 :1, bit7 :1; } bit_field; I don't know where &port is defined. Can someone please explain how the function is read and how it works please? I am not very good with pointers and this example in particular is very confusing with "*" in the front and at the end and the "&" with the port. Thank you

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• dialog display automaticaly when i load web page

  - by robert trudel

  When i load my web page, i have a dialog who open automatically. I don't want that. I put a image and when i click on it, i would like dialog open my js $("#deleteReportButton").click(function() { $("#deleteReportConfirm").dialog("open"); }); $("#deleteReportConfirm").dialog({ resizable: false, height: 140, modal: true, buttons: { "Delete report": function() { $(this).dialog("close"); }, Cancel: function() { $(this).dialog("close"); } } }); html part <div id="deleteReportConfirm" title="Delete report?" style="display:none"> <p>....</p> </div> <img id="deleteReportButton" src="/plato/resources/images/delete.png" />

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• how to make text appear when you hover at a particular area?

  - by Michael

  I'm mainly using c++ win32 API project and the question is asked keeping in mind: When you use microsoft visual studio 2010 visual c++ editor and you minimize any function, then ahead of the function you get a box; hovering over which you see the entire function. How to implement this in c++ win32 API ? for ex- when a win32 project is created in vs2010, and empty project checkbox is unchecked then by default you get a code which after running produces a window which has a menu bar containing File an Help. Now i want some text to come when i hover over each of them. I do not want a code just a hint how it can be done. Thanks in advance.

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• submitting a form inside a modalbox with jquery

  - by birdy

  submitting form with jQuery works $('#testform').submit(); doesn't work $('#testform').submit(function () { alert('test1'); return true; }); This is just an exmaple but at times i'd like to do stuff before submission of the form. Like for example submit the form using $.POST Update: If I keep both then the $.POST has no value because the form still gets submitted the traditional way, without ajax... $("#testform").submit(function() { $.post('/myajaxcontroller', function(data) { $('#result').html(data); }); }); $("#testform").submit();

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• Does remove a DOM object (in Javascript) will cause Memory leak if it has event attached?

  - by seatoskyhk

  So, if in the javascript, I create a DOM object in the HTML page, and attach event listener to the DOM object, upon I remove the the DOM from HTML page, does the event listener still exist and causing memory leak? function myTest() { var obj = document.createElement('div'); obj.addEventListener('click', function() {alert('whatever'); }); var body = document.getElementById('body'); // assume there is a <div id='body'></div> already body.appendChild(obj); } // then after some user actions. I call this: function emptyPage() { var body = document.getElementById('body'); body.innerHTML = ''; //empty it. } So, the DOM object, <div> inside body is gone. But what about the eventlistener? I'm just afraid that it will cause memory leak.

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• MVC Validator numberOfInvalids not working

  - by user965445

  I dynamically add some elements to a form so I know I need to re-parse the form. Even if I have old invalid elements they don't get identified in numberOfInvalids It always comes back = 0 even though the invalid fields are highlighted on the page. var form = $("#form"); //Form Savingform.submit(function (e) { e.preventDefault(); form.removeData("validator"); form.removeData("unobtrusiveValidation"); $.validator.unobtrusive.parse(form); var val = form.validate(); if (val.numberOfInvalids() == 0) { $.blockUI({ fadeIn: 1000 }); AjaxRequest({ data: $(this).serializeArray(), success: function (data, status, xhr) { alert('sucess save or submit, use "'); }, complete: function () { $.unblockUI(); } }); } });

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• How to set up default value in symfony2 select box with data from database

  - by user172409255

  I have this code ->add('user', 'entity', array( 'class' => 'Acme\Entity\User', 'query_builder' => function(EntityRepository $er) use ($options) { return $er->createQueryBuilder('u') ->orderBy('u.name', 'ASC'); }, 'data' => $option['id'] )) Its not working public function buildForm(FormBuilderInterface $builder, array $options) { $builder ->add('description') ->add('user', 'entity', array( 'class' => 'Acme\Entity\User', 'query_builder' => function(EntityRepository $er) use ($options) { return $er->createQueryBuilder('u'); }, 'preferred_choices' => array('2') )) ; }

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• Old functions return 'undefined' error once I add a jquery reference

  - by Lapa

  Disregard this question: I've simply confused <script src="..."></script> tag and <script> [some functions] </scipt> tags. I have this function function OnLoad() { ShowHideConfirmAnswers(); return true; } triggered by onload event: <body onload=OnLoad()> It works fine until I add src="jquery-1.4.2.js" to the script element. From this moment I get "OnLoad is not defined" error, and the same happens to every other javascript function.

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• Sleeping a thread blocking stdin

  - by Sid

  Hey, I'm running a function which evaluates commands passed in using stdin and another function which runs a bunch of jobs. I need to make the latter function sleep at regular intervals but that seems to be blocking the stdin. Any advice on how to resolve this would be appreciated. The source code for the functions is def runJobs(comps, jobQueue, numRunning, limit, lock): while len(jobQueue) >= 0: print(len(jobQueue)); if len(jobQueue) > 0: comp, tasks = find_computer(comps, 0); #do something time.sleep(5); def manageStdin(): print "Global Stdin Begins Now" for line in fileinput.input(): try: print(eval(line)); except Exception, e: print e; --Thanks

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• Why my jquery is not working for a span tag

  - by Shantanu Gupta

  I am trying to display some message in span. but it is not working. <script type="text/javascript"> $(document).ready(function(){ /****************************First Name validation******************************/ $("#txtFirstName").bind("focusout",function(){ if($(this).val()=="" || $(this).val()=="First Name") { $(this).siblings("span[id*='error']").text("First Name Required"); $(this).val("First Name"); } }); $("#txtFirstName").bind("focusin",function(){ if($(this).val()=="First Name") { $(this).siblings("span[id*='error']").show("slow").text(""); $(this).val(""); } }); /********************End First Name validation*****************************/ }); Here is my html code for above code <td><input id="txtFirstName" type="text" value="First Name" runat="server"/><span class="error"></span></td>

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• Asp.net mvc html melper

  - by tom

  Hi there Ive got this function as a html helper which should write a javascript function onto the page, I then call this in the masterpage like this <%Html.RenderBaseUrlScript(); % My problem is that the script never seems to be written to the page, I search in the source and cannot see it anywhere, I have tried moving this around from the head to the body of the html masterpage, Im really confused as to why this is not workung, please help public static string RenderBaseUrlScript(this HtmlHelper helper) { return string.Format("<script type='text/javascript'> $.url=function(url){{return '{0}'+url;}}", GetBaseUri()); }

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• Creating a textarea with auto-resize

  - by DisgruntledGoat

  There was another thread about this, which I've tried. But there is one problem: the textarea doesn't shrink if you delete the content. I can't find any way to shrink it to the correct size - the clientHeight value comes back as the full size of the textarea, not its contents. The code from that page is below. I'd appreciate any help or pointers. function FitToContent(id, maxHeight) { var text = id && id.style ? id : document.getElementById(id); if ( !text ) return; var adjustedHeight = text.clientHeight; if ( !maxHeight || maxHeight > adjustedHeight ) { adjustedHeight = Math.max(text.scrollHeight, adjustedHeight); if ( maxHeight ) adjustedHeight = Math.min(maxHeight, adjustedHeight); if ( adjustedHeight > text.clientHeight ) text.style.height = adjustedHeight + "px"; } } window.onload = function() { document.getElementById("ta").onkeyup = function() { FitToContent( this, 500 ) }; }

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• Remove alert from a javascript

  - by albastar

  I've the below code from a tutorial,i want the action but i just want to remove the alert, here is the code: <script type="text/javascript"> setTimeout('read()', 10000); function read() { FB.api('/me/news.reads' + '?article=<?php echo $fbrdurl ?>&access_token=<?php echo $access_token ?>','post', function(response) { var msg = 'Error occured'; if (!response || response.error) { if (response.error) { msg += "\n\nType: "+response.error.type+"\n\nMessage: "+response.error.message; } alert(msg); } else { alert('Post was successful! Action ID: ' + response.id); } }); } </script> I've tried this: <script type="text/javascript"> setTimeout('read()', 10000); function read() { FB.api('/me/news.reads' + '?article=<?php echo $fbrdurl ?>&access_token=<?php echo $access_token ?>','post'; } </script> but not worked, thanks

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