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  • pointers for getting elements of an array in C

    - by Manolo
    I am a newbie in C and I would like to get the elements of an array with a function, I have tried different options, but I still do not get the elements. My function is: void getelements(int *a, int cl) { int *p; for (p=&a[0];p<&a[cl];p++) { printf("%d\n",*p); } } I know that the solution should work like that, but it only prints the first element and then memory positions. I am calling my function with: int v={10,12,20,34,45}; getelements(&v,5); Any help? I need to use arithmetic of pointers. Thanks

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  • c# unicode string output

    - by Reg
    I have function to convert string to a Unicode string: private string UnicodeString(string text) { return Encoding.UTF8.GetString(Encoding.ASCII.GetBytes(text)); } But when I am calling this function the output result is wrong. It looks like my function is not working. Console.WriteLine(UnicodeString("????? ?????")) printing on console just questions like that: ????? ???? Is there any way to say to console to display it correct? UPDATE Looks like the problem not in Unicode, I think may be it is displaying question marks because i am not having correct locale in the system (Windows 7)? Is there any way to make it work without changing locale?

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  • getElementById does return null

    - by pbcoder
    I have following function: $('canvas').createWindow('xyz', 500, 600); And js-code behind is: var $ = function(element) { if (this.constructor !== $) { return new $(element); } alert(element); var windowObj = document.getElementById(element); this.createWindow = function(src, width, height) { if(width != "" && height != "") { windowWidth = windowObj.style.width = width + 'px'; windowHeight = windowObj.style.height = height + 'px'; } }; }; But the problem is that JS says windowObj is null, alert(element) works fine! Thanks for your help!

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  • How to $.extend 2 objects by adding numerical values together from keys with the same name?

    - by muudless
    I currently have 2 obj and using the jquery extend function, however it's overriding value from keys with the same name. How can I add the values together instead? obj1 = {"orange":2,"apple":1, "grape":1} obj2 = {"orange":5,"apple":1, "banana":1} mergedObj = $.extend({}, obj1, obj2); var printObj = typeof JSON != "undefined" ? JSON.stringify : function(obj) { var arr = []; $.each(obj, function(key, val) { var next = key + ": "; next += $.isPlainObject(val) ? printObj(val) : val; arr.push( next ); }); return "{ " + arr.join(", ") + " }"; }; console.log('all together: '+printObj(mergedObj) ); And I get obj1 = {"orange":5,"apple":1, "grape":1, "banana":1} What I need is obj1 = {"orange":7,"apple":2, "grape":1, "banana":1}

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  • Why is it not displaying

    - by Doug
    My fieldset doesn't display onclick, what am I doing wrong? $(document).ready(function(){ $('#More').toggle( function() { $('#search', this).slideDown(); }, function() { $('#search', this).slideUp(); }); }); <div> Item 1 <a href="#" id="More">Item 2</a> Item 3 <fieldset id="search" style="display: none;"> <form> <input type="text"> </form> </fieldset> </div>

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  • jQuery: Scroll the window then addClass() - how to callback

    - by carillonator
    Inside a jQuery event handler, I would like to scroll the window and then add a class to something. This is my code: $('#foo').click(function() { window.scrollTo(y); $('#bar').addClass('active'); }); $(window).scroll(function() { $('#bar').removeClass('active'); }); Notice I have another handler to remove that same class whenever the window is scrolled. The scrolling part works fine, but seems to run asynchronously, so removeClass() happens after addClass() but before the scrolling is finished. I don't know how to do this in plain javascript. I know there is a jQuery scrollTop() function that does the same thing (but seems to have cross-browser issues), but it doesn't accept a callback. What I really need is a callback to add the class after the scrolling is finished. thanks!

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  • Showing val as html inside of a div in real time.

    - by smudge
    I'm using the following in order to have on screen display of each value of a checkbox that's selected with great results when it's displayed inside a textbox. I'd like to change it so that I can show a real time display in a div as html instead of a textbox. A link to a working demo is here and below is the script. I know it's probably a basic line or two but i'm still learning and new. thanks! function updateTextArea() { var allVals = []; $('#c_b :checked').each(function() { allVals.push($(this).val()); }); $('#t').val(allVals) } $(function() { $('#c_b input').click(updateTextArea); updateTextArea(); });

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  • post selextbox values to php page in jquery

    - by JPro
    I am using jquery button click to post all the values in a selectbox to a PHP page, but this code does not seem to work. Can anyone please help? <script type="text/javascript"> $(function() { $("#btn1").click(function () { var arr= new Array; $("#target_select option").each (function () { // You can push the array on an array arr.push( $(this).val() ); //alert( $(this).val() ); not getting the alert to display too }); $.post("test.php", { name: arr } ); }); }); </script> Generate

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  • How do I change the background image of my app?

    - by user356387
    Hello I have looked around and found some code which so called chooses an image from an array of image objects, but cant find an explanation. I would like to make my app have a background image and the user can select next and previous buttons to scroll through some full screen images, setting them as the background image as they scroll. I know how to do this in java, but cant seem to do it for this app. How or what code is linked to a next button to grab the next image in the array and reverse for the back button? Then that needs to be displayed obviously. I have used a layered architecture with a MVC style approach but cant seem to put it together with Objective-C. Would the buttons call the appropriate methods of the so called delegates, which the delegates handle fetching and returning the Images? Would the buttons use the returned images and actually handle the redrawing? I would really appreciate the help. Regards Jarryd

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  • how to deal with async calls in Ajax 4.0(using jquery?)

    - by dexter
    in my code i have done something like this. $.get('/Home/Module/Submit', { moduleName: ModName, moduleParameters: moduleParameters }, function(result) { $("#" + target).html(result); }); when i put alert in the function(result) {..} it shows html perfectly(both in alert and at the 'target'-on the .aspx page) BUT when i remove the alert.. on the page the 'html' don't appear or appear randomly (this method is called multiple times) i think that the 'result' comes to function asynchronously thats why it is not bind with the respective 'div' however in the last iteration it gets bind every time. can we make process stop until data gets bind? or is there any functionality (like alert) which can make data bind.. without disturbing UI (unlike alert)?

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  • How to re-open a closed file descriptor

    - by chaitu
    I have a scenario where i created pipe for communication between two child and parent. Parent writes (using write function)data to the pipe and closes the respective file descriptor. The problem is when i want to write data again to the pipe, the write function is returning error code -1. I think its because writing end has been closed in previous iteration. Then how to open the corresponding file descriptor after it has been closed once. I tried using open() function which requires path to some file as arguement. But i am not using any files in my application. I have simple file descriptors (int arr[2]). Is it possible to achieve above scenario with pipes????

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  • How is this regex wrong?

    - by Spot
    I have a regex which I'm using to match user functions inside an IDE (Sublime). This matches what I want (the function name itself), but it also matches the first parentheses. Therefore the match is like follows: this._myFunction('content'); Notice the opening paran. Here is my expression: (?:[^\._])?([\w-]+)(?:[\(]){1} How can I exclude the opening paran from getting matched? . As a bonus question: How can I successfully not match the string: function, because as you can expect function( matches (not fun in JS). Thank you to anyone who can assist.

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  • Bash file descriptor leak

    - by Charles Duffy
    I get a file descriptor leak when running the following code: function get_fd_count() { local fds cd /proc/$$/fd; fds=( * ) # avoid a StackOverflow source colorizer bug echo "${#fds[@]}" } function fd_leak_func() { echo ">> Current FDs: $(get_fd_count)" read retval new_state < <(set +e; new_state=$(echo foo); retval=$?; printf "%d %s\n" $retval $new_state) } function parent_func() { while fd_leak_func; do :; done } parent_func Tested on both 3.2.25 and 4.0.28. Taking the while loop out of parent_func and running it at top level makes the problem go away. What's going on here? More to the point, are workarounds available?

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  • PHP: Remove all fcn not acting as expected, Code Inside

    - by Josh K
    I made this simple function (remove all $elem from $array): function remall($array, $elem) { for($i=0; $i < count($array); $i++) if($array[$i] == $elem) unset($array[$i]); $newarray = array_values($array); return $newarray; } But it isn't working perfectly, here are some inputs and outputs $u = array(1, 7, 2, 7, 3, 7, 4, 7, 5, 7, 6, 7); $r = remall($u, 7); Output of $r: 12345767 $n = array(7, 7, 1, 7, 3, 4, 6, 7, 2, 3, 1, -3, 10, 11, 7, 7, 7, 2, 7); $r = remall($n, 7); Output of $r: 1346231-30117727 Notice how there are still 7s in my outputs. Also, My function will only be removing numbers from an array. Let me know if you spot something, thanks.

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  • Cannot get disable button to work.

    - by Scarface
    Hey guys, quick question, I have this javascript/jquery function that basically wraps an input in image brackets, and the first part of the function works, but the button does not disable after and I cannot figure out why (last line does not work). If anyone has an idea, let me know. Thanks in advance. <input id="2image" type="button" value="Attach" onclick="imageid('message')"> <script> function imageid(input) { var obj=document.getElementById(input); obj.value+="[image]image[/image]"; $("#2image").attr({ disabled:true, value:"Inserted" }); } </script>

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  • Strange behaviour of mb_detect_order() in PHP

    - by termopro
    I would like to detect encoding of some text (using PHP). For that purpose i use mb_detect_encoding() function. The problem is that the function returns different results if i change the order of possible encodings with mb_detect_order() function. Consider the following example $html = <<< STR ????????????????????????????????????????????????????????????????????????????????????????????????????????? STR; mb_detect_order(array('UTF-8','EUC-JP', 'SJIS', 'eucJP-win', 'SJIS-win', 'JIS', 'ISO-2022-JP','ISO-8859-1','ISO-8859-2')); $originalEncoding = mb_detect_encoding($str); die($originalEncoding); // $originalEncoding = 'UTF-8' However if you change the order of encodings in mb_detect_order() the results will be different: mb_detect_order(array('EUC-JP','UTF-8', 'SJIS', 'eucJP-win', 'SJIS-win', 'JIS', 'ISO-2022-JP','ISO-8859-1','ISO-8859-2')); die($originalEncoding); // $originalEncoding = 'EUC-JP' So my questions are: Why is that happening ? Is there a way in PHP to correctly and unambiguously detect encoding of text ?

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  • How do i loop an ajax request (using jquery) and jsp

    - by Mrshll187
    <script> //when page is ready do the following $(document).ready(function() { //set interval of refresh setInterval(doAjaxMethod, 1000); }); function doAjaxMethod(id) { $.ajax({ url: "getStatus/"+id, dataType: "json", success: function(json) { $('#ajaxStatus').html(json.status); } }); </script> <% //How can I do something like this int n = object.size(); for(int i=0; i<n; i++) { doAjaxMethod(object.getId()); } %> <div id=ajaxStatus> status updates here </div>

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  • AJAX with jQuery not returning data

    - by James P
    This is my Javascript: $(document).ready(function() { $('#like').bind('keydown', function(e) { if(e.keyCode == 13) { var likeMsg = $('#like').val(); if(likeMsg) { // Send the AJAX request to like.php $.ajax({ url: 'like.php', success: function(data) { alert('Content: ' + data); } }); } } }); }); And this is my like.php file: <?php echo "It works! :)"; ?> When I press enter on the #like input, it seems the AJAX request is sent and an alert box comes up saying: Content:, but there's no data being sent back from like.php... I have checked if the file exists and if it's in the same directory and whatever and it is, so I'm pretty much clueless atm. Does anyone know what could be wrong here? Cheers.

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  • jquery add remove objects

    - by Scarface
    Hey guys quick question, I have an add remove script that will add a unique element and should remove it on a click function but does not. I think it is because the added object is not in the DOM when page is loaded but I am not sure how to fix this. IF anyone has any advice I would greatly appreciate it. $(document).ready(function(){ if (action=='content-change'){ $('#droppable2-inner').empty().append('<div id="content-image"><img id="visual-background2" src=' + src + '></div><div id="drop-content" action="drop-image">x</div>'); } $("#drop-content").click(function() { $('#content-image').remove(); }); })

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  • why are javascript functions like this

    - by Kajal
    I am a starter to javascript. I know to write JS userdefined functions. But recently I came across some thing that I can’t recognize. Can anyone explain to me what this is? (function( window, undefined ) { var jQuery = (function() { }); window.jQuery = window.$ = jQuery; })(window); What is the meaning of this? When I Google javascript functions I am getting only function foo(){ alert("This is an alert"); } I know to use these type of functions

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  • Dynamically choosing css property in animation

    - by paddywhack
    Hi, It seems a straightforward thing but I'm not having much success. I'm just implementing a simple animation moving a div left or up using animate() but I would like to be able to set the "top" and "left" css properties dynamically. I would like to use the same function rather than have to have two, one for "left" and one for "top". Here's some code which gives the idea. function test($element){ $element.click(function(){ var cssProperty; var direction = "left"; var moveTo = "100px"; if (direction === "top") { cssProperty = "top"; } else { cssProperty = "left"; } /*Using variable as CSS property - This doesn't work */ $(this).animate({ cssProperty: moveTo }, 1000); /*Using variable as the CSS Values - This does */ $(this).animate({ left: moveTo }, 1000); }); } Variables works on the css value side but not on the css selector side. Anyone have any suggestions? Thanks

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  • C++ rvalue temporaries in template

    - by aaa
    hello. Can you please explain me the difference between mechanism of the following: int function(); template<class T> void function2(T&); void main() { function2(function()); // compiler error, instantiated as int & const int& v = function(); function2(v); // okay, instantiated as const int& } is my reasoning correct with respect to instantiation? why is not first instantiated as const T&? Thank you

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  • Toggeling between image

    - by Binaryrespawn
    Hi all, I have two images with which I am using in an anchor tag. I am using jquery toggle on the click event of the anchor tag to swap between images. $(document).ready(function(){ $('#registrationForm').hide(); $('#callform').append("<a id='formlink'>IMAGE 1</a>"); $("#formlink").click(function(){ $('#registrationForm').toggle(function(){ $('#formlink').empty().append(IMAGE 2); }); }); }); This works fine the first time around, however i want to toggle between the two images whenever the other is clicked. Any ideas ?

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  • How can I pass select field ID and its value to ajax without having any form?

    - by user3766078
    I have a select field which has ID name as 'region_code' well as its value. And I want pass ID in ajax. As you can see below, the input field is not included in any form. It has a value and the ID Is it possible to get value in ajax as shown below? echo '<select id="region_code" onchange="show_region_code();">'; $result = mysql_query("SELECT region_code, region_name FROM list_region"); while($rows = mysql_fetch_array($result)) { echo "<option value=\"$rows[0]\">".$rows["1"].'</option>'; } echo '</select>'; My ajax function as below function show_region_code() { var region_code = $("#region_code").val(); $.ajax ({ type: "POST", url: "show_region_code.php", data: { region_code1: region_code }, success: function(data) { $("#region_code").html(data); } }); }

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  • javascript / jQuery variable problem (possibly caching issue)

    - by waitinforatrain
    Standard AJAX query with jQuery: var globalTitle = ""; var pages = ["a", "b", "c"]; for (var i = 0; i < pages.length; i++) { createpage(pages[i]); } function createpage(title) { globalTitle=title; console.log (globalTitle); //All looks good here $.ajax({ url: "createpage.php?id=" + title, context: document.body, success: success }); } The success() function uses globaltitle which is why I had to declare it global. In the success() function though console.log (globalTitle); constantly gives me "a". It's like the variable is assigned but is then cached every time success() is called. Happens in FF 4 and Chrome 8. Any thoughts?

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