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• How to directly access a certain part of a text file in g++?

  - by Phenom

  I have a text file containing a number of records. Each record is stored on a single line that is 100 characters long. Let's say I want to directly access the nth record. I could do it using a for loop, reading in n lines until I get to the record. But how could I access it directly?

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• How can I pass information between 2 different View Controllers?

  - by sagiftw

  Hi, This is a simple question: I have 2 different view controllers, and each one has its own data stored in its .m file. I want to take a value, for instance, an integer value (int i=3;) that is declared in ViewController1 and pass it to ViewController2, so I will be able to use that value in the second view controller. Can anyone please tell me how to do it? Thanks in advance, Sagiftw

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• tag cloud filter help please

  - by rod

  Hi All, I have a div that contains many spans and each of those spans contains a single href. Basically it's a tag cloud. What I'd like to do is have a textbox that filters the tag cloud on KeyUp event. Any ideas or is this possible? Thanks, rodchar

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• <img> inside <a> gets blue border in IE8

  - by John

  <a href="index.html"><img src="image.png"/></a> IE8 highlights the image with a blue border. I'm not sure what CSS is relevant here, is it just border? Can I use a single CSS style to turn it off, like: a img { ... }

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• Best practice for referring to classes in CSS

  - by Mark Szymanski

  If you have an HTML page with a class in an element, for instance <div class="myClass"> would it be best to refer to it in the CSS as .myClass or div.myClass? Thanks in advance!

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• PHP MySQL query help

  - by user547794

  Hello, I am trying to use this query to return every instance where the variable $d['userID'] is equal to the User ID in a separate table, and then echo the username tied to that user ID. Here's what I have so far: $uid = $d['userID']; $result = mysql_query("SELECT u.username FROM users u LEFT JOIN comments c ON c.userID = u.id WHERE u.id = $uid;")$row = mysql_fetch_assoc($result); echo $row['username'];

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• Shortcut for moving between Vim windows

  - by Kamilski81

  Let's say I have single Vim tab displaying 9 buffers (equally separated, like a table 3x3). Currently, to get from the top left window to the bottom right one, I have to press 3, Ctrl+W, J, and then 3, Ctrl+W, L. This is cumbersome and I would like to just be able to press Ctrl+9 to go to the 9th window and Ctrl+3 to go to the 3rd window, etc. Is there any easy way I can map something like this in Vim?

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• C++ Macro problem, not replacing all values

  - by JP

  I have the following 2 macros: #define SCOPED_ENUM_HEADER(NAME) struct NAME{ enum _NAME{ #define SCOPED_ENUM_FOOTER(NAME) };}; typedef NAME::_NAME NAMEtype; Only the first instance of NAME get replaced by the passed NAME. What's wrong with it? Is is to be used in such a way: SCOPED_ENUM_HEADER(LOGLEVEL) UNSET, FILE, SCREEN SCOPED_ENUM_FOOTER(LOGLEVEL) Thanks you

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• linked list problem

  - by progster

  Delete every 't'th (t1) node of a single linked list. In the resultant linked list, again delete 't'th node. Repeat this till only t-1 nodes remains. For this i have come up with: Traverse until you reach 't'th node, delete all the nodes till the end. Is there any efficient way other than this?. Can any one please help me out. Thanks.

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• How do I match strings in shell-style using Perl?

  - by isch

  How to match strings in shell-style in Perl? For instance: foo* {bar,baz}.smth joe? foobar[0-9]

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• Cannot execute newly created TestMethod in VS2010

  - by FrontSvin

  When I try to run a new TestMethod on an existing TestClass in Visual Studio 2010 (by right-clicking on the method name and choosing Run Tests) the test method does not execute. After a restart of VS, the problem has gone. Am I missing some refresh thing, or is right-clicking even the correct way of executing a single test method?

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• Add rows to tables in Settings bundle?

  - by cannyboy

  Certain settings in the Settings app allow you to add rows to tables within the interface (for instance, within the Mail settings you can add accounts) Is this done with a settings bundle? How is this done?

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• Multithreaded Applications

  - by j-t-s

  Hi All I have been reading the articles on MSDN, but my mind is dead (this usually happens when I read MSDN (No offense MSDN, but your articles confuse me at times.)), and I'm trying to do some "background work" in may app, but not sure how. It's just a single method. But the application hangs, and I have to wait up to 1 - 3 minutes for it to become ...unhanged? Are there any simple examples that are laying 'roun online somewhere that I can have a look at/play around with? Thank you all

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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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• Which mail server would you choose to develop your product on top of

  - by Tzury Bar Yochay

  I am willing to build an email application which runs on the server side. Not being familiar with any particular server I wonder if I can get some recommendations based on experience. I have seen many great startups which built some neat apps on the email platform (for instance, friendfeed's notification mechanism, or surely posterous which mail is at the heart of their business logic), and wonder about which mail server have they found easy to learn and integrate with. PS: MS Exchange or any other not open-source are not an option Must run on linux

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• Thread & Windows forms (C#)

  - by Julien

  Hello, I'd like to know if the executing thread is the one that created a given control instance (to prevent cross-thread if it's not). Is that possible ? Thx.

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• How do I see **all** the currently defined variables in PHP?

  - by Itay Moav

  I need a way to see all the defined variables of the current PHP instance. By currently defined I mean all the globals, all the local to THIS scope and all the locals to other scopes. Is there something built in?

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• Resize JTable in JScrollPane by dragging

  - by shuby_rocks

  Hello all, How can I implement the functionality of being able to resize a JTable by dragging a corner by mouse (to see more rows during a single view) which is embedded in a JScrollPane? Is their any other easy alternative way? Thanks a lot.

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• How to finish series of open sub-activities from one activity?

  - by RockOn

  Hi, I am trying to make an exit button for my application. Anyhow I am able to track all the instance of activity in my application and then finish them all. But still some activity remain alive in some cases. Dont know how. Is there any method to kill a particular application in android. Or any other way can I exit from my application. Thanks

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• How do I use define_method to create class methods?

  - by Chinasaur

  This is useful if you are trying to create class methods metaprogramatically: def self.create_methods(method_name) # To create instance methods: define_method method_name do ... end # To create class methods that refer to the args on create_methods: ??? end My answer to follow...

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• shell-style match in perl

  - by isch

  How to match strings in shell-style in Perl? For instance: foo* {bar,baz}.smth joe? foobar[0-9]

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• Click to select from a list of tags in jQuery

  - by Michael Doornbos

  I'm struggling to find a tag selection UI for a rails app. Ideally it would be something like the selection here on Stackoverflow, or on Delicious or Digg. I want users to be able to select multiple tags with a single click. We're already using jQuery, so it makes sense to use something that takes advantage of that. I've used the selection ui in jQuery and I'm not thrilled about having users need to hold down ctrl to select multiple tags.

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• What's the best way to have functions share an array in Objective-C?

  - by editor

  I understand that in Objective-C you declare an array in the header file and interact with it in a class. So far I'm adding things and fetching them fine within a single function. I'm new to the language however and can't figure out how to share that array across other functions. I'd like to initialize array data in my viewDidLoad and access it from various functions later on. Is this possible and if so what's the best way to do it?

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• Amazon EC2 pricing question

  - by Industrial

  Hi everyone, I took my first step today on working with cloud servers and chosed Amazon EC2 for this project. Since I am a bit of a newcomer on this, I didn't fully understand their pricing: What happens when a instance is idling with no connections being made. Does it still cost us money? It would be sad to have instances idling and costing us money when we do not use them... Thanks a lot!

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• [C#] Splitting every character of an string

  - by user365870

  HI, I want to split a string into each single character. Eg: Splitting : "Geeta" to "G", "e", "e" , "t", "a" How can I do this? I want to split a string which don't have any separator Please help.

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