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• How can I have a Foo* iterator to a vector of Foo?

  - by mghie

  If I have a class that contains a std::list<Foo>, how can I implement iterators to a Foo* collection, preferably without using boost? I'd rather not maintain a parallel collection of pointers. For now I have std::list<Foo>, mostly so that removing or inserting an element does not invalidate all other iterators, but would it be possible to implement other iterators too, so that the collection type used in the implementation is opaque to the user of the class?

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• Javascript jQuery ajax submit default data

  - by onlineracoon

  How to submit default data when using $.ajax? I have tried: $.ajaxPrefilter(function(options, originalOptions, jqXHR) { // can't access anything here... (tried jqXHR.data but undefined) }); $.ajaxSetup({ beforeSend: function(jqXHR, settings) { // can't access anything here... (tried jqXHR.data but undefined) } }); I need this so I can send my CSRF token, each time and when logged in submit the user ID each time. I prefer not to submit a token in headers. Thanks

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• mySQL convert varchar to date

  - by Jeff V

  I need to convert a varchar value of 1/9/2011 to a date in mySQL and I want only the month and year. So that I can then use the PERIOD_DIFF function (so I would need the above to be converted to 201101). I've tried various ways using the STR_TO_DATE function: SELECT STR_TO_DATE(CYOApp_oilChangedDate, '%m/%Y') FROM CYO_AppInfo But I get weird results... (for example: 2009-01-00) What am I doing incorrectly?

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• jQuery: Writing jquery in an object oriented way

  - by anoopkattodi

  Hi all, I am trying to write all my query code in an object oriented way. But I don't know how to implement this for each click function and hover function etc. I also wanted to know: What are the advantages of writing query in object oriented way? For query what is better the object oriented way or in the ordinary way?

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• Remove CSS from a Div using JQuery

  - by Aruna

  Hi, I'm new to JQuery. In my App I have the following: $("#displayPanel div").live("click", function(){ $(this).css({'background-color' : 'pink', 'font-weight' : 'bolder'}); }); When I click on a Div, the color of that Div is changed. Within that Click function I have some functionalities to do. After all that I want to remove the applied Css from the Div. How could I do it in JQuery?

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• How do you solve this Haskell problem?

  - by Linda Cohen

  I want to define a function replicate to replicate a list of numbers by its value using only list comprehension, for example: replicate [5,1,3,2,8,1,2] output: [5,5,5,5,5,1,3,3,3,2,2,8,8,8,8,8,8,8,8,1,2,2] I know this would be easy to use the 'replicate' built in function but only list comprehension is allow, how can I do this? THANKS!

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• jquery ui dialog change position after first click

  - by user1958218

  I am using jquery uimodaldialog and this is setting $("#dialog").dialog({ autoOpen : false, minWidth : 700, show : { effect : "fade", duration : 1000 }, hide : { effect : "fade", duration : 1000 }, close : function(event, ui) { }, }); I am calling with this $('.mylink').on('click', function() { $( "#dialog" ).dialog( "open"); Now on first click it shows at center of page . if I click again then it goes about 200px upwards. On further clicking it says there

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• map kind of asp.net application

  - by stackoverflowuser

  I want to create a asp.net application which can show directions in a layout from room A to room B. So layout would be a grid of rooms and if the user wants to get directions from room A to room B the application to highlight the path in blue. I have no idea how to begin with this? What can i use to create a floor layout and then highlight the required path. Any pointers ? Thanks.

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• Where does code within Script tags go in the resulting AS class?

  - by Hanno Fietz

  I was wondering what happens to the code contained in an <mx:Script> tag. If I define a function tehre, it just becomes a member function of the generated class. But I noticed that it seems OK for the compiler if I just write some (static) method calls there (specifically, I call Font.registerFont()). I feel kind of guilty for doing this, because I have no idea what's really happening and when the code gets executed.

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• Location based Timezone Retrieval

  - by samsina

  Given: LDAP stores location of users. How do I drive their timezones using their location? Any pointers are accepted, Java language preferred. Thanks in advance.

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• Using nsINavHistoryObserver to create events for a firefox extension

  - by user303052

  I am trying to make a firefox extension which looks at all the new pages that a user views and look at the URL. I was looking at the nsINavHistoryObserver interface and was interested in the onVisit function. Is there a way to create an event listener that can listen to whenever the onVisit function is called? Thanks

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• Will the error be displayed?

  - by user281180

  I have an ajax post and in the controller I return nothing. In case there is a failure will the error message displayed with the follwoing code? [AcceptVerbs(HttpVerbs.Post)] public void Edit(Model model) { model.Save(); } $.ajax({ type: "POST", url: '<%=Url.Action("Edit","test") %>', data: JSON.stringify(data), contentType: "application/json; charset=utf-8", dataType: "html", success: function() { }, error: function(request, status, error) { alert("Error: " & request.responseText); } });

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• "Distance" between colours in PHP

  - by Phil

  I'm looking for a function that can accurately represent the distance between two colours as a number or something. For example I am looking to have an array of HEX values or RGB arrays and I want to find the most similar colour in the array for a given colour eg. I pass a function a RGB value and the 'closest' colour in the array is returned

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• where does main() return its value?

  - by piemesons

  I'm newly using CODE::BLOCKS+mingw compiler If I don't type return 0 at the end of program,I can see that main() is returning some integer,I learnt that main() returning 0 infers program executes successfully.I don't find any flaw in my code, why is it returning some integer? secondly any function returns its value to its function call, to where does main() return its value?

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• Android - what's the difference between the various methods to get a Context?

  - by Alnitak

  In various bits of Android code I've seen: public class MyActivity extends Activity { public void method() { mContext = this; // since Activity extends Context mContext = getApplicationContext(); mContext = getBaseContext(); } } However I can't find any decent explanation of which is preferable, and under what circumstances which should be used. Pointers to documentation on this, and guidance about what might break if the wrong one is chosen, would be much appreciated.

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• [dx] drawprimitive with alpha

  - by confusedman

  I'm trying to draw line with drawprimitive function in direct3d. Can I draw tranparent line with the function? If i can, how to design it?

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• Matching Strings: a biological perspective

  - by sun

  Write a function, called constrainedMatchPair which takes three arguments: a tuple representing starting points for the first substring, a tuple representing starting points for the second substring, and the length of the first substring. The function should return a tuple of all members (call it n) of the first tuple for which there is an element in the second tuple (call it k) such that n+m+1 = k, where m is the length of the first substring. Complete the definition def constrainedMatchPair(firstMatch,secondMatch,length):

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• prevent default hover

  - by meo

  I try to prevent the Browser from using the :hover effect of the CSS. $("ul#mainFilter a").hover( function(o){ o.preventDefault(); ...do my stuff... }, function(o){ o.preventDefault(); ...do my stuff... }); I tired it with return false; to but it does not work. Does anyone know how to do this?

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• JQuery - Set all cookies ending with

  - by Israfel

  I'm wondering if it's possible to use a wildcard to select multiple cookies. I'm using jquery to save various scroll position and would like to clear them out in one go. At the moment I clear them out individually as below function clearScroll(elementID) { if ($.cookie) { $.cookie(elementID + '_scrollpos', 0); } } What I'd like is a clear all something like below. function clearAllScroll() { if ($.cookie) { $cookie([name$='_scrollpos'],0); } } Is this possible?

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• referencing desired objects in namespaced functions

  - by RyOnLife

  I'm having trouble referencing the desired object when I've namespaced functions. No problems here: obj.test = function() { // this == obj } But I'm getting tripped up when I namespace: obj.namespace.test = function() { // this == namespace } In the latter example, I know this references namespace, but I want to reference obj. How can I do it?

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• Is there a equivalent in C for C++ templates?

  - by nunos

  In the code I am writing I need a foo(int, char*) and a foo(int, int) functions. If I was coding this in C++ I would use templates. Is there any equivalent for C? Or should I use void pointers? How? Thanks.

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• [C++] Is it possible to roll a significantly faster version of modf

  - by John

  In an app I'm profiling, I found that in some scenarios this function is able to take over 10% of total execution time. MSVC++ 2008 compiler is being used, for reference... I don't recall if modf maps to a single instruction or if there is likely any way to make it faster. see also here for similar question on sqrt function

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• Java reference storage question

  - by aab

  In java, when you pass an object to a method as a parameter, it is actually passing a reference, or a pointer, to that object because objects in Java are references. Inside the function, it has a pointer to that object which is a location in memory. I am wondering where this pointer lives in memory? Is a new memory location created once inside the function to hold this reference?

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• Favorite C/C++ questions for an interview [closed]

  - by Nullw0rm

  What are your favorite C/C++ interview questions? It may be question or contain question of concepts, some subjects are: Logic, multithreading, algorithms (and performance), STL, templates, inheritence, pointers. This is a useful tool for me, to look at what would be tested on a career-like application.

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• Fields in CakePHP could not be referred by JQuery

  - by kwokwai

  Hi all, I have got a simple HTMl form with one field as follows: <input type="text" name="data['User']['user_id']" id="data['User']['user_id']" value="1"> $(document).ready(function(){ $("#data['User']['user_id']").mouseover(function(){ alert("hello"); }); }); The code couldn't work, I think it may be the name of the Input text field that caused the problem, but I don't know how to alter it because this is the naming convention in CakePHP.

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