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• objective C NSString retain

  - by Amarsh

  If I create a String with [NSString StringWithFormat], do I have to [retain] it? My understanding is that convenience methods add the objects to autorelease pool. If that is the case, shouldnt we retain the object so that it doesnt get drained with pool at the end of the event loop?

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• recommendation systems and the cold start problem

  - by Hellnar

  Hello, I am curious what are the methods / approaches to overcome the "cold start" problem where when a new user or an item enters the system, due to lack of info about this new entity, making recommendation is a problem. I can think of doing some prediction based recommendation (like gender, nationality and so on). Thanks

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• Dynamic linking in Visual Studio

  - by ILya

  I have to link dynamically with OpenSSL libeay32.dll. I'm writing native c++ console application using Visual C++ Express 2008. I'm including a header evp.h from OpenSSL distribution. Building and...: error LNK2001: unresolved external symbol _EVP_aes_256_cbc error LNK2001: unresolved external symbol _EVP_DecryptInit error LNK2001: unresolved external symbol _EVP_CIPHER_CTX_init How to make calls to libeay32.dll methods? I don't know where to specify it's filename

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• Legacy exchange MAPI help?

  - by Zenox

  I'm working with some legacy exchange code and I am having trouble finding information about some methods/constants. A google search reveals others using similar code, but with no explanations. Does anyone have any ideas where I can find proper docs? One constant I am looking for is: SYNC_ASSOCIATED.

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• Colour instead of color?

  - by Jookia

  I'm working on a game engine in C++ and I have methods like setColour and things that use british grammar. While I was thinking how C++ compilers mostly use the english language (correct me if I'm wrong) and how most APIs use american grammar, should I go with the flow and continue the unofficial standard in the grammar programmer high council or be a rebel? I'm not sure which.

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• Calling method after view has loaded

  - by iamdadude

  My iPhone app allows for users to type in their usernames and passwords so that they can login. When they login once, their usernames and passwords are saved so that users don't have to type it in again. My problem is, when the app starts again, it immediately starts logging them in, leaving the interface completely black. How would I go about calling my login method AFTER all the UI methods are loaded?

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• trying to convert rgb from a .net Color to a string such as "red" or "blue"

  - by dubayou

  All of my methods are failing me in various ways. different lighting can mess it all up too. has anyone every trying to return a name given a rgb value? "red" "green" "blue" would be enough to satisfy my needs for today. i have unsafe byte processing of images from my web cam.

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• Filtering out page content with AJAX in Sitecore

  - by RaYell

  I have a page in Sitecore that displays the list of clients. There's a form with two select boxes that should filter out clients not matching specified criterias. Clients list should be refreshed via AJAX everytime user changes one of the values in the form or after clicking Submit button if JS is disabled. What is the suggested approach I should take to have this working in Sitecore? I'm not sure about Sitecore part, I know how to call AJAX methods/

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• Hidden features of C#3.5 [closed]

  - by xyz

  Possible Duplicate: Hidden Features of C#? Kindly donot mistake this question with Hidden Features of C#?. It is specific to C# 3.5 / dot net 3.5 I have figured out some(what I have used so far). They are as under 1) Linq 2(Objects, Sql, Xml) 2) Lambda expressions 3) Extention methods 4) Object initializers 5) Collection initialisers 6) Anonymous delegates 7)Automatic properties Please help me in finding out more. Thanks

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• Call plugin class in Java

  - by Josh Meredith

  How can I call a class in Java, when the name of the class won't be known at compile time (such as if it were a plugin). For example, from a GUI, a user selects a plugin (a Java class), the application then creates a new instance of the class, and calls one of its methods (the method name would be known at compile time (e.g. "moduleMain")). Thanks for any input.

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• Why won't anyone accept public fields in C#?

  - by Dmitri Nesteruk

  Seems like every C# static analyzer wants to complain when it sees a public field. But why? Surely there are cases where a public (or internal) field is enough, and there is no point in having a property with its get_ and set_ methods? What if I know for sure that I won't be redefining the field or adding to it (side effects are bad, right?) - shouldn't a simple field suffice?

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• Guideline on Visual Studio 2008 Unit Test

  - by Praveen Kumar

  Is there any guideline on how to use Visual Studio 2008 unit test development? I am developing a n-tier web application using entity framework. My problem is to create Unit Test for the methods which INSERT or UPDATE to the database.

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• What are the differences and similarities between the .NET languages?

  - by froadie

  I'm trying to figure out how much overlap there is between the different languages of the .NET framework, and what the real differences are. Is there an overlap of libraries/methods/functions...? If I'm googling a question for, say, VB .NET, and C# answers come up, what can I take from the C#-relevant info and what differences/incompatibilities should I look out for?

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• Android framework source level debugging in Eclipse

  - by Seva Alekseyev

  Hi all, the Java sources for the Android framework are available at source.android.com. Can I download and feed them to Eclipse so that I can step into framework methods while debugging? Better yet, does anyone know of an Eclipse plug-in that would get them from Android Git automatically as needed?

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• Is a psuedo form submittal possible with PHP?

  - by Brook Julias

  Using PHP can you create a pseudo form submit without ever generating a form? Just initialize and declare variables and them pass them to another page via the POST or GET methods?

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• Auto-generating toString Method

  - by Gordon

  Is it good or bad practice auto-generating toString methods for some simple classes? I was thinking of generating something like bellow where it takes the variable names and produces a toString method that prints the name followed by it's value. private String name; private int age; private double height; public String toString(){ Formatter formatter = new Formatter(); return formatter.format("Name: %s, Age: %d, Height %f", name, age, height).toString(); }

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• Reading Python Documentation for 3rd party modules

  - by Shadyabhi

  I recently downloaded IMDbpy moduele.. When I do, import imdb help(imdb) i dont get the full documentation.. I have to do im = imdb.IMDb() help(im) to see the available methods. I dont like this console interface. Is there any better way of reading the doc. I mean all the doc related to module imdb in one page..

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• Is SPLFileObject atomic?

  - by Jakub Lédl

  I'm wondering whether methods of PHPs SPLFileObject are atomic (e.g. thread-safe) or not? If they aren't, I'll implement my own class, which will use flock(), but is this enough? Is the flock function really thread-safe? What if the collision occurs after I fopen() the file, but before I flock() it?

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• Create a UIView Subclass that calls a delegate function whenever it's parent viewController appears?

  - by Andrew Johnson

  UIViewControllers have viewWillAppear, viewDidDisappear, etc. delegate methods. I would like to create a UIView subclass that can be added to a viewController's view, and when that UIViewController apears or disappears, a delegate function is called. I could easily do this by putting function calls in the UIViewController viewWillAppear/viewWillDisappear delegate functions, but how can I encapsulate this behavior in the UIView?

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• Prevent backslash from being parsed by javascript for a string

  - by user286269

  A Flash AS3 IRC application sends me a string like "f\reak" to my javascript. Irc allows the \ in usernames which poses a problem when its passed to javascript. "f\reak" become "feak" in javascript making the \r into a carriage return. Is there a way to read the absolute value of the string instead of parsing a carriage return? These don't methods didn't work str.valueOf() str.toString() str.charAt(position of the \ ) this just sees the carriage return as well and not a backslash

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• Testing Rails Metal With Cucumber/rSpec

  - by nkabbara

  Hi, I'm trying to stub a third party service that my metal talks to. It seems rspec mocks/stubs don't extend all the way to the Metal. When I call stubbed methods on objects, it calls the original one and not the stubbed one. Any idea of how I can have rSpec doubles extend all the way to the metal? Thanks. -Nash

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• What is the difference between array parameters in C

  - by STeN

  Hi, what is the difference between following function declarations, which create and return the array in C/C++? Both methods create the array and fill it with proper values and returns true if everything passed. bool getArray(int* array); bool getArray(int* array[]); Thanks Best Regards, STeN

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• When can there be many Waves in a context on Google Wave

  - by Alan

  In a Google Wave Robot, the event handler gets a Context object. One of the methods is GetWaves, that is documented as: """Returns the list of waves associated with this session.""" I am trying to understand when this would return more than one Wave. What are the situations where there is more than one Wave associated with the session/context?

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• How would I go about prevent DLL injection.

  - by wowus

  So the other day, I saw this: http://www.edgeofnowhere.cc/viewtopic.php?p=2483118 and it goes over three different methods of DLL injection. How would I prevent these from the process? Or at a bare minimum, how do I prevent the first one? I was thinking maybe a Ring 0 driver might be the only way to stop all three, but I'd like to see what the community thinks.

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• iPhone text editor syntax highlight

  - by Jack

  Hi, As the title suggests, I am trying to add a text editor with syntax highlighting to a project. I have asked a similar question before and got pointed in the direction of either: a) a UITextView and NSAttributedStrings Or b) a web view Can anyone shed some light on using either of These methods or suggest an alternative? I have searched around for a few hours now and have found nothing. Jack

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