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• What are the benefits of using properties internally?

  - by cyclotis04

  Encapsulation is obviously helpful and essential when accessing members from outside the class, but when referring to class variables internally, is it better to call their private members, or use their getters? If your getter simply returns the variable, is there any performance difference?

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• Accessing any structs members at run-time.

  - by jmgunn

  Is it possible to get access to an individual member of a struct or class without knowing the names of its member variables? I would like to do an "offsetof(struct, tyname)" without having the struct name or member variable name hard coded amoungst other things. thanks.

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• Best way to initialise / clear a string variable cocoa

  - by Spider-Paddy

  I have a routine that parses text via a loop. At the end of each record I need to clear my string variables but I read that someString = @"" actually just points to a new string & causes a memory leak. What is the best way to handle this? Should I rather use mutable string vars and use setString:@"" between iterations?

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• PHP syntax question: global $argv, $argc;

  - by Andrew

  So I have a PHPUnit test, and found this code within a function. global $argv, $argc; echo $argc; print_r($argv); I understand what these variables represent (arguments passed from the command line), but I've never seen this syntax before:global $argv, $argc; What specifically is going on here?

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• C++ conversion from string to object identifier

  - by 104250004363501275012

  I'm writing a program in C++ that reads in some data from an external file in order to set the values of static variables. Is it possible to convert a string to an object identifier? (e.g. convert the string "CheckBox::Unchecked" into and identifier for the object CheckBox::unchecked)

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• Using CompareTo() on different .NET types (e.g. int vs. double)

  - by Yossin

  Hi, I've got a static method that accepts two object type variables and runs the CompareTo() method: public static int Compare(Object objA, Object objB) { return (((IComparable)objA).CompareTo(objB)); } Problem is that CompareTo() throws an exception when trying to compare between different types (e.g. int and double). Does any one know of a better way in C#, to compare between two different types? Or a workaround to this problem? Thanks

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• [python] parsing a string based on specified identifiers

  - by jml

  Let's say that I have the following text: in = "one aaa two bbbb three cccc" I would like to parse this into a group of variables that contain notworking = ["one", "two", "three"] v1,v2,v3 = in.split(notworking) I know that the example above won't work, but is there some utility in python that would allow me to use this sort of approach? I know what the identifiers will be in advance, so I would think that there has got to be a way to do this... Thanks for any help, jml

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• Android - how to set keystore

  - by teepusink

  Hi, I'm running a sample application that has a map component to it. The app launch find, but I don't see the map loading. I read sometime ago that it might be caused by keystore mismatch? How do I set keystore? Been trying to find it from google and eclipse but can't find where I can change that. Thanks, Tee

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• Missing Required Gems - javan-whenever and cron job in rails

  - by Matenia Rossides

  Hi, I have finally managed to get javan-whenever gem working on my site5 server, and updating the crontab is quite easy, however whenever a cron job is run with the code that is generated, i get a "missing required gems" error where it lists about 8/10 of my gems. Has anyone else had this problem? If so, what would the solution be. The funny thing is that when it outputs where my gems are, this is all correct, and the gems are loading fine from within my application. Cheers, Matenia

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• Android menu view, gridview or something else?

  - by dfilkovi

  I need to create a home screen (menu) with four to six items arranged in a grid view, each item needs to have an icon and a text below the icon. I googled and everything I could find were adapterView examples, with dynamic menu loading, and I want to make it with static xml, this view will not change so no need for dynamic code. Can anyone post an xml example of this?

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• Data access layer using Linq to SQL

  - by Andrei Tanasescu

  I am building a c# - linq - sql server winforms/asp.net application, accessing a database. I would like my business logic layer to be easily testable, and that means not littering it with Linq database queries everywhere. What design patterns/ best practices are available for the following use cases - inserting/updating a new object - searching for an object - loading a bunch of related data into a sort of "presentation" object that could be displayed by various views ?

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• How do I transfer a javascript value to a php variable?

  - by motboys

  I have an html table containing values that are being generated from javascript. How do I transfer those values to php variables?

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• Detect mime type of an image via Javascript

  - by ricky2002

  Hi, i am detecting images on my webpage with javascript document.images function which returns an rray of images. Is there any way to get the mime type of the image from this since i am not using any extension names on images which are loading?

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• Switching 2003 SRV to 2008 caused Asp.net application not to load DLL

  - by Tom

  Switching aged 2003 SRV to 2008 caused my Asp.net 2 application fail: The application is no more loading the required library DLL from /bin/ folder anymore. What should I change in my code or web.config to make this webapp load OK also in new 2008 server? Now I receive this error when I access the application: This type is in IMPORTS ( Dll ). Compiler Error Message: BC30002: Type 'Facebook.Entity.User' is not defined.

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• windows keydown listeners in C

  - by numerical25

  I am having a very hard time finding resources that talk about the windows message system. Mainly the keydown constant variables. I need to know what const varibles I need to listen for all keypress especially the arrow keys for C

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• What's the simplest way to get the highest and lowest keys from a dictionary?

  - by Jorge

  self.mood_scale = { '-30':"Panic", '-20':'Fear', '-10':'Concern', '0':'Normal', '10':'Satisfaction', '20':'Happiness', '30':'Euphoria'} I need to set two variables: max_mood and min_mood, so I can put some limits on a ticker. What's the easiest way to get the lowest and the highest keys?

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• how to do thread in matlab?

  - by hai

  how to do thread in matlab? i want to run one function on two variables simulatniosly how to do it?

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• Finding all CLASSPATH resources matching a pattern

  - by binil

  I want to read a bunch of text files, by loading them as resources using the context classloader. URL url = Thread.currentThread() .getContextClassloader() .getResource("folder/foo.txt"); Is there some way to get a list of resources whose names match a given pattern? For eg: URL[] matchingUrls = someLibrary.getMatchingResources("folder/*.txt"); Libraries like Spring can scan the classpath to find classes with a given annotation, so I am wondering if there something similar to load a bunch of resources.

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• file upload using progress element in HTML 5

  - by UNNI

  I am using progress element while displaying the progress of a file upload in javascript. But the problem that I am facing is it is not completely loading huge file.when I checked evet.total attribute it gives the total size of the file in bytes.But when it loads physically event.loaded attribute loads only 70 to 75 %.So I want to know is there any pre-requisite when use progress event? Has anybody faced this kind of issue before?.Thanks in advance.

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• How does IIS persist a user's identity from page to page?

  - by Rising Star

  Web pages are, by nature, state-less objects. When you click from page to page in an ASP.net application, each request for a page is treated as a brand-new request. We use things like cookies, session-variables, and query strings to maintain state from page to page. When you log in to an ASP.net web application using Windows Authentication, how does IIS persist your identity between pages?

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• Need help with drupal, ubercart and a module hook on product load

  - by Kareed

  Hi, I am trying to make a module that works with ubercart. What I need to know is how do I hook into the loading of a product. I want to modify some of the data slightly before any output. Thanks

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• how to sort STL vector

  - by NativeCoder

  i want to sort a vector vector<myclass> object; where as myclass contains many int data variables, how can i sort my vector on any specific data variable of myclass.

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• C++ Pointer to a function which takes an instance of a templated class as argument

  - by Nils

  I have trouble compiling a class, which has function pointers as member variables. The pointers are to functions which take an instance of a class as argument. Like template<class T, int N> double (*f)(Vector<T,N> v); I get "error: data member 'f' cannot be a member template" Compiler is gcc 4.2.

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• Why can we have static final members but cant have static method in an inner class ?

  - by user275131

  Why can we have static final members but cant have static method in an inner class ? Can we access static final member variables of inner class outside the outer class without instantiating inner class ?

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• extracting getfptex batch file from CTAN

  - by swarna

  I am facing a problem while loading getfptex (got it from CTAN) batch file. When I'm extracting this batch file I'm getting series of statements saying "No Such directory".

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