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• Hidden features of Perl?

  - by Adam Bellaire

  What are some really useful but esoteric language features in Perl that you've actually been able to employ to do useful work? Guidelines: Try to limit answers to the Perl core and not CPAN Please give an example and a short description Hidden Features also found in other languages' Hidden Features: (These are all from Corion's answer) C#…

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• Expression Tree Binary Expression for an 'In' operation

  - by Adam Driscoll

  I'm trying to build an expression tree (still) but getting further! I need to create a BinaryExpression to perform an 'In' comparison between a Member and a collection of items. Hence, the expression should return true if the member is contained within the items. This obviously does not exist: Expression.MakeBinary(ExpressionType.In,…

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• Is CSS turing complete?

  - by Adam Davis

  CSS isn't, insofar as I know, Turing complete. But my knowledge of CSS is very limited. Is CSS Turing complete? Are any of the existing draft or committees considering language features that might enable Turing completeness if it isn't right now?

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• Animating custom-drawn UITableViewCell when entering edit mode

  - by Adam Alexander

  Background First of all, much gratitude to atebits for their very informative blog post Fast Scrolling in Tweetie with UITableView. The post explains in detail how the developers were able to squeeze as much scrolling performance as possible out of the UITableViews in Tweetie. Goals Beginning with the source code linked from the…

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• Vector is pointing to uninitialized bytes when used in recvfrom call

  - by Adam A.

  In a function that I am writing I am trying to return a pointer to a vector of unsigned chars. The relevant code is below. std::vector<unsigned char> *ret = new std::vector<unsigned char>(buffSize,'0'); int n = recvfrom(fd_, &((*ret)[0]) ,buffSize, &recvAddress, &sockSize); //This should work too... …

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• iPhone Foundation - performance implications of mutable and xxxWithCapacity:0

  - by Adam Eberbach

  All of the collection classes have two versions - mutable and immutable, such as NSArray and NSMutableArray. Is the distinction merely to promote careful programming by providing a const collection or is there some performance hit when using a mutable object as opposed to immutable? Similarly each of the collection classes…

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• Why did Dylan loose to Objective-C

  - by Adam Gent

  I have played/worked with many different programming languages and Dylan is still one of my favorites. My question is why did Dylan fail when Objective-C, Ruby and even Scheme have had more success? Was Dylans performance that much worse than Objective-C that Apple went with it or was purely for social/political reasons. …

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• .net multilingual cms

  - by Adam

  i am planning a simple, dual-language website and i'd like to use a .net based cms but i can't find anything suitable. i have experience with dotnetnuke and sharepoint but neither fit the bill - dotnetnuke does not do dynamic site elements multi-lingually & sharepoint is a monster PITA no matter what angle you look at…

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• PowerShell - Shorten namespace names so it's easier to access types

  - by Adam Driscoll

  Is there a method of shortening PowerShell namespace references? Typing [RootNameSpace1.NameSpace2.Namepsace3+SomeEnum]::SomeValue is taxing and not a very good user expierence. I realize that you can reference System level objects without a namespace such that [Type]::GetType(... will work. Is there some manifest I could…

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• Unsupported operand types when value is integer

  - by Adam Tester

  I'm getting this error when trying to add 2 to an integer. I am using the Codeigniter framework. Fatal error: Unsupported operand types in D:\wamp\www\application\libraries\Gen_images.php on line 180 Here is where its called: // Now process the image var_dump($this->upload->data('image_width'));…

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• putting multibinding on a single line in xaml

  - by Adam S

  Is there a way to take this multibinding: <TextBox.IsEnabled> <MultiBinding Converter="{StaticResource LogicConverter}"> <Binding ElementName="prog0_used" Path="IsEnabled" /> <Binding ElementName="prog0_used" Path="IsChecked" /> </MultiBinding>…

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• Solving the NP-complete problem in XKCD

  - by Adam Tuttle

  The problem/comic in question: http://xkcd.com/287/ I'm not sure this is the best way to do it, but here's what I've come up with so far. I'm using CFML, but it should be readable by anyone. <cffunction name="testCombo" returntype="boolean"> <cfargument name="currentCombo"…

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• Authlogic and password and password confirmation attributes - inaccessible?

  - by adam

  Im trying to test my successfully creates a new user after login (using authlogic). Ive added a couple of new fields to the user so just want to make sure that the user is saved properly. The problem is despite creating a valid user factory, whenever i try to grab its attributes to post…

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• Emulating CSS3 border-radius and box-shadow in IE7/8

  - by Adam Maras

  I'm working on HTML for a small web application; the design calls for a content area with rounded corners and a drop shadow. I've been able to produce this with CSS3, and it works flawlessly on Firefox and Chrome: However, Internet Explorer 7 and 8 (not supporting CSS3) is a different…

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• C# Improvement on a Fire-and-Forget

  - by adam

  Greetings I have a program that creates multiples instances of a class, runs the same long-running Update method on all instances and waits for completion. I'm following Kev's approach from this question of adding the Update to ThreadPool.QueueUserWorkItem. In the main prog., I'm…

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• Mark duplicates in MySql with php (without deleting)

  - by Adam

  So, I'm having some problems with a MySQL query (see other question), and decided to try a different approach. I have a database table with some duplicate rows, which I actually might need for future reference, so I don't want to remove. What I'm looking for is a way to display the…

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• Excel Macro Runtime error 428 in Excel 2003

  - by Adam

  Hi I have created a xlt excel template which works fine in Excel 2007 under compatibility mode and shows no errors on compatibility check. The template runs a number of Macros which creates pivot tables and charts. When a colleague tries to run the same xlt on excel 2003 they get…

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• API Wrapper Architecture Best Practice

  - by Adam Taylor

  Hi, So I'm writing a Perl wrapper module around a REST webservice and I'm hoping to have some advice on how best to architect the module. I've been looking at a couple of different Perl modules for inspiration. Flickr::Simple2 - so this is basically one big file with methods…

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• How to convert RGB to BGR?

  - by Adam

  This is probably easy, but I'm trying to convert from a source which provides colors in RGB strings to an output in BGR strings in Java. I've been busting my brain and time on shifting and Long.decode and Long.toHexString. Feel free to also throw alpha values in there (RGBA -…

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• How to best implement Version Control for Web Development?

  - by Adam Taylor

  Version control systems are obviously important in development projects but there use in web development projects appears to be more complex, what with the requirement of having a web server to run all but the simplest of web applications. With that in mind, I have looked…

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• How to Convert Non-English Characters to English Using JavaScript

  - by Adam Right

  I have a c# function which converts all non-english characters to proper characters for a given text. like as follows public static string convertString(string phrase) { int maxLength = 100; string str = phrase.ToLower(); int i…

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• "Android 2.x" vs "Google APIs" for Android AVD Setup

  - by Adam Haile

  In the Android AVD manager (or a new project for that matter), it will give two options for the same API level. For example, for Level 7 (2.1) it will show "Google APIs - Level 7" and "Android 2.1 - Level 7" in the selection drop down. What, if any, is the actual…

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• QR code (2D barcode) coding and decoding algorithms?

  - by Adam Davis

  Looking for free/opensource code or description of algorithms to code (simple) and decode (hard) the 2D barcode QR code. It doesn't seem like a trivial problem, but it's so popular in Japan that there must be something already available...

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• Nested Linear layout only shows first view after being set from gone to visible in Android

  - by Adam

  Hi guys, I am developing an Android app but I'm still pretty new. I want to have a button, and when you push that button, a few TextViews and Buttons will appear. So I have a main linear layout, and then another linear layout nested inside containing the things…

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• Maven artifacts could not be resolved

  - by Adam Fisher

  I added the spring and jboss repositories to my pom.xml like below: <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0…

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