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• Using netlink to obtain arp entries only returns stale entries

  - by Ben

  I'm currently trying to retrieve reachable neighbors from the arp table in a user space program written in c. I've looked through the source code to the "ip neigh" command (ipneigh.c) and it appears that I should use the flag NUD_REACHABLE. struct { struct nlmsghdr n; struct ndmsg r; } req; memset(&req, 0, sizeof(req)); req.n.nlmsg_len =…

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• AdMob ad is showing in iOS simulator, but not on iDevice

  - by Ben Toscano

  As the heading states, I can get my AdMob Ad to show in the iOS 5.1 and 6.0 simulator just fine, however, when running my application on my iOS 5.1.1 or 6.0 devices, there is just a blank space where the ad should be served. The code in my .m file is as follows: bannerView_ = [[GADBannerView alloc] initWithFrame:CGRectMake(0.0, …

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• Same font, character spacing and line-height but different results

  - by Ben Huh

  The introduction of @font-face in CSS3 allows web designers to use fonts that look the same across all browsers. That is what I thought until trying it out with the following code in jsFiddle: HTML: <div> The_Quick_Brown<br> Fox_Jumps_Over<br> The_Lazy_Dog </div> CSS: @font-face { font-family: 'Open…

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• Which Android platform and API to target?

  - by Ben Mc

  I'm just about to launch my first Android app, and it runs on the Android 1.1 platform, API Level 2, but is this what I should officially sign and launch the app as? Does it affect performance at all or is it simply for Android to know which devices it works on? The only problem I see is that I can't specify <supports-screens> in the…

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• jQuery selector for option tag value attribute returns null

  - by Ben

  Hello, I am trying to change the selected option in a select dropdown box with jQuery. I have it set so that it finds the hash tag at the end of the URL and based on that hash tag it changes the selected option in the select box. Most of my code is functional, it successfully finds the hash tag and executes the if statement that corresponds…

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• How to efficiently convert String, integer, double, datetime to binary and vica versa?

  - by Ben

  Hi, I'm quite new to C# (I'm using .NET 4.0) so please bear with me. I need to save some object properties (their properties are int, double, String, boolean, datetime) to a file. But I want to encrypt the files using my own encryption, so I can't use FileStream to convert to binary. Also I don't want to use object serialization, because of…

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• Finding the textNode which the cursor is currently over

  - by Ben Shelock

  Let's say I have the following... <div id="text">Some text</div> When my mouse goes over Some, Some will be returned and the same with text. Is this possible without putting each node into it's own element?

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• finding process bottlenecks rails/ruby

  - by Ben

  I just got started with rails, and when I testing in development mode, I see in the logs that my Mailer action is taking 1175ms. Is there anyway to find out what exactly is the slow step? Also, there is a line that says (View:2, DB:1). I assume the DB means number of database lookups, but what about the view?

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• Jquery, checkboxes and isChecked

  - by Ben

  When I bind a function to a checkbox element like: $("#myCheckbox").click( function() { alert($(this).is(":checked")); }); The checkbox changes it checked attribute before the event is triggered, it's it normal behavior, thus giving and inverse result. However, when I do: $("#myCheckbox").click(); The checkbox changes it checked…

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• Attaching user data to AXObserver

  - by Ben Packard

  I am using an AXObserver to monitor when a window is closed. In the callback, I am just raising an NSNotification. All working well. What is the correct syntax for attaching some user data as refcon? The working call looks like this: err6 = AXObserverAddNotification(observerTable, tableRef, kAXUIElementDestroyedNotification, nil); …

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• Can't mass-assign protected attributes: user

  - by Ben Aluan

  I'm working on a simple app that requires me to submit a form. I created two models. user.rb class User < ActiveRecord::Base attr_accessible :email has_many :item end item.rb class Item < ActiveRecord::Base attr_accessible :user_id belongs_to :user end Instead of creating a user using the user form view, I'm trying…

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• How can I get the previous logged events when a particular logger is triggered?

  - by Ben Laan

  I need to show the previous 10 events when a particular logger is triggered. The goal is to show what previous steps occurred immediately before NHibernate.SQL logging was issued. Currently, I am logging NHibernate sql to a separate file - this is working correctly. <appender name="NHibernateSqlAppender"…

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• What wording in the C++ standard allows static_cast<non-void-type*>(malloc(N)); to work?

  - by ben

  As far as I understand the wording in 5.2.9 Static cast, the only time the result of a void*-to-object-pointer conversion is allowed is when the void* was a result of the inverse conversion in the first place. Throughout the standard there is a bunch of references to the representation of a pointer, and the…

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• C# Delegates - How Often Do You Use Them, And When?

  - by Ben Aston

  Delegates look like such a powerful language feature, but I've yet to find an opportunity to use them in anger (apart from in DALs I must say). How often do you use them, and under what circumstances do you find them most useful?

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• JSF - Session Bean restart on logout and login

  - by Ben

  Hi, I have a web application with a backing bean which has the context of the current logged in user. It is implemented on JSF. When the user logs out he is forwarded to a login screen (in another JSP page). I would like the current session to be erased when that happens and a new one to be created the next…

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• Is OpenGL required for my iPhone game?

  - by Ben X Tan

  On an iPhone: If I am writing a game that has multiple levels, with multiple animations (image sequences), jpg and png (transparent), some full screen and some not, some looped and some played once only. What is the best way of doing it? Each level might have up to 10MB of images. Add on to this music, and…

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• How can I get started with PHPUnit, where my class construct requires a preconfigured db connection?

  - by Ben Dauphinee

  I have a class that uses a lot of database internally, so I built the constructor with a $db handle that I am supposed to pass to it. I am just getting started with PHPUnit, and I am not sure how I should go ahead and pass the database handle through setup. public function setUp(/*do I pass a database…

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• Valid signed Hex to long function

  - by Ben

  I am trying to convert a 24bit Hexadecimal string (6 characters) signed in two's complement to a long int in C. This is the function I have come up with: long int hex2li (char string[]) { char *pEnd; long int result = strtol (string, &pEnd, 16); if (strcmp (pEnd, "") == 0) { if…

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• Any good arguments for not writing unit tests?

  - by Ben Dauphinee

  I have read a lot of threads about the joys and awesome points of unit testing. My question is, does anyone have a good argument against unit testing?

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• jQuery Dialog form serialize reposting incorrect data on subsequent uses

  - by Ben Dauphinee

  I'm working with forms inside jQuery Dialog, and am having some issues with the data it's posting. First load and save works fine, posts the correct data. Until I refresh the page though, every subsequent load seems to work, as in the correct data is in the form, however, when saved, the data from the…

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• What's the equivalent of use-commit-times for git?

  - by Ben W

  I need the timestamps of files on my local and on my server to be in sync. This is accomplished with Subversion by setting use-commit-times=true in the config so that the last modified of each file is when it was committed. Each time I clone my repository, I want the timestamps of files to reflect…

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• javascript and extJs - scope question

  - by ben

  Hi guys, I got a little scope related problem with some js code, maybe somebody can explain to me what I'm making wrong: I'm using extJs and got this snippet: Ext.onReady(function(){ // Form for filter selection var formFilter = new Ext.FormPanel({ // ... items: [ cbGroup = new…

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• Storing data when using Greasemonkey

  - by Ben Shelock

  Is there a good way to store an extensive ammount of data when using Greasemonkey for when GM_setValue just doesn't cut it?

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• Bypassing Javascript form handler

  - by Ben Aston

  We are writing an ASP.NET MVC application. By default, if the client browser has Javascript, the handler for every form on the page is set, by Javascript, to be one that sends the submission down an Ajax "pipe" (progressive enhancement). But, for one form (on a page of several), I'd like this…

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• What is the maximum value of an unsigned 64-bit integer in English?

  - by Ben Aston

  What is the maximum value of an unsigned 64-bit integer in English?

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