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• Using the same variable across multiple files in C++

  - by Sam152

  In the process of changing some code, I have spilt some functions into multiple files. I have the files controls.cpp and display.cpp and I would like to be able to have access to the same set of variables in both files. I don't mind where they are initialized or declared, as long as the functions in both files can use them. This was not an issue when the functions were in the same file, but now it seems almost impossible after an hour of googling and trying various things.

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• iPhone Quartz - Open GL

  - by user345473

  Hi all, Does anyone have an idea what do the mind mapping applications use for drawing: Quartz 2D or Open GL? What would be the best way to implement this kind of application? Any advice is welcomed! Thanks!

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• Best way to save to nsuserdefaults for custom class?

  - by cannyboy

  If I have a custom class Person which has three variables (which are propertized and synthesized): NSString* theName; float* theHeight; int theAge; Person instances are stored in an NSArray 'Group'. There is only one Group. What is the best way of string and loading the Group in NSUserDefaults? (bearing in mind that float and int are not legal for NSUserDefaults)

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• Parse CSS out from <style> elements

  - by awj

  Can someone tell me an efficient method of retrieving the CSS between tags on a page of markup in .NET? I've come up with a method which uses recursion, Split() and CompareTo() but is really long-winded, and I feel sure that there must be a far shorter (and more clever) method of doing the same. Please keep in mind that it is possible to have more than one element on a page, and that the element can be either or .

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• C++ finding pointer errors

  - by Tony

  Hello! I am currently on a project which has been buggy for a long while, now I suspect, among other things, that there is pointer errors in the code. The program is written in native C++ using COM and uses out-of-process COM servers. Can anybody give me some tips as how one would go about finding these errors? Is there specific things to keep in mind, ways to do it, etc...

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• Which are the most noteable things which make working with Core Date so different than with MySQL?

  - by mystify

  One thing I have in mind is, that datasets in Core Data (or lets say: managed objects) have no ID like known from other databases such as MySQL. Also, they're not in a specific guaranteed order. What else makes Core Data much more "special" compared to working with a relational database like MySQL? Besides the whole object graph persisting and ORM stuff?

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• How do I accept all changes from a remote?

  - by e-satis

  I'm doing a pull origin some_branch and can see there are a lot of changes. Eventually I don't mind if their erase all mine. How can I accept them all instead or using mergetool and merge files one by one?

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• Useful Vim features

  - by Craig H

  Vim is my editor of choice, and I feel I am above average in my use of it. I do recognize, though, that the feature list of vim is huge. With this in mind, I was wondering what features you vim users out there use on a regular basis.

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• is there a way to condense a vector (C++)?

  - by zebraman

  I have a sparsely populated vector that I populated via hashing, so elements are scattered randomly in the vector. Now what I want to do is iterate over every element in that vector. What I had in mind was essentially condensing the vector to fit the number of elements present, removing any empty spaces. Is there a way I can do this?

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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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• Generating XMI or graphic UML diagrams (not code documentation) in C#.NET

  - by kozziou

  Is there any solution available for generating UML diagrams (or at least XMI files) in C#.NET? Bear in mind that I don't want to reverse engineer my code but automate UML diagrams generation (different kind of them, mostly component diagrams).

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• How expensive is synchronization?

  - by someguy

  I am writing a networking application using the java.nio api. My plan is to perform I/O on one thread, and handle events on another. To do this though, I need to synchronize reading/writing so that a race condition is never met. Bearing in mind that I need to handle thousands of connections concurrently, is synchronization worth it, or should I use a single thread for I/O and event handling?

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• would there be such case of jumping, if yes how?

  - by Pooria

  I have an issue in the mind and that is since the jump instruction changes EIP register by adding signed offsets to it(if I'm not making a mistake here), on IA-32 architecture how would going upward in memory from location 0x7FFFFFFF(biggest positive number in signed logic) to 0x80000000(least negative number in signed logic) be possible? or maybe there shouldn't be such jump due to the nature of signed logic?

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• How can I introduce a small number with a lot of significant figures into a C program?

  - by Lana

  I'm not particularly knowledgable about programming and I'm trying to figure out how to get a precise value calculated in a C program. I need a constant to the power of negative 7, with 5 significant figures. Any suggestions (keeping in mind I know very little, have never programmed in anything but c and only during required courses that I took years ago at school)? Thanks!

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• C# How can i remove newline characters from binary?

  - by Tom

  Basically i have binary data, i dont mind if it's unreadable but im writing it to a file which is parsed and so it's importance newline characters are taken out. I thought i had done the right thing when i converted to string.... byte[] b = (byte[])SubKey.GetValue(v[i]); s = System.Text.ASCIIEncoding.ASCII.GetString(b); and then removed the newlines String t = s.replace("\n","") but its not working ?

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• How to differ between Windows Mobile 6.5.3 and previous versions during runtime?

  - by Johann Gerell

  Is there an established or unofficial way of finding out if my application is running on a Windows Mobile 6.5.3 device or if it's a previous version? Managed or native doesn't matter and I don't mind interop-ing.

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• Pattern match and replace in Javascript

  - by T_t

  There is something in my mind: In a web page,there are lots of things we can see from our browser.One of them is text. Now i have some patterns,"abc","hello",or some other strings.In the text, i want to find all the patterns and change the color or background-color of them. Like this: text: what a wonderful day! pattern: "a","day" resulet: what a wonderful day! How can solve this whit Javascript?

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• Would Python make a good substitute for the Windows command-line/batch scripts?

  - by Lawrence Johnston

  I've got some experience with Bash, which I don't mind, but now that I'm doing a lot of Windows development I'm needing to do basic stuff/write basic scripts using the Windows command-line language. For some reason said language really irritates me, so I was considering learning Python and using that instead. Is Python suitable for such things? Moving files around, creating scripts to do things like unzipping a backup and restoring a SQL database, etc.

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• Is flash's geturl(...) spiderable by google?

  - by tom

  If I made a homepage with an embedded .swf which had buttons that linked to other html pages on my website using the getUrl() function, would those links be spiderable by google? Or should I also put in text links outside of the .swf (which would ruin the design a bit)? I know a lot of people will argue I shouldn't have flash as the main content on the homepage (and their comments are appreciated), but bear in mind, that's not my question.

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• how to run a query from the VBA Editor window in ACCESS?

  - by every_answer_gets_a_point

  i would like to do something like this: DoCmd.OpenQuery "select * from some_table;" how would i do this? please keep in mind i don't want create a new query, save it, and run it, i just want to type the select statement in the vba code and run it.

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• Feature panel hover changer effect

  - by user1519157

  Haven't seen this before so hopefully someone has a easy solve, I have a 3 feature panel divs side by side, what I want happen is the 1st panel has a "hover" class added so I can change the background etc and then on a timed interval the hover class jumps to the next panel then the next panel then back to the start on a loop. Also on a side note can you keep the code in mind to be able to add more then 3 feature divs so you could have for example 6 or more or less etc.

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• How can I style normal html tables (or ASP tables) like the rest of the RadGrid in my website?

  - by Marcel

  I'd like to have a normal table to look like RadGrids, is there an easy way I can use the RadGrid styles (keeping theming in mind)?

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• Creating Java Dialogs

  - by mike_hornbeck

  What would be the easiest way for creating a dialog: - in one window I'm giving data for envelope addressing, also set font type from list of sizes - when clicked OK, in the same window or in next window I get preview of how the envelope would look like with the given names, and used selected font size It should look similarly to this : Should I use Jdialog ? Or will JOptionPane will be enough ? The next step will be to choose color of font and background so I must keep that in mind.

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• delete records from a table based on data from a different table

  - by every_answer_gets_a_point

  table1 has column CITY and COUNTRY. table2 has column CITY. how do i delete from table2 all records that have CITY in common with table1 but also the COUNTRY='Russia' ?? please keep in mind that both tables have about 1 million rows of data

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• Removing &NBSP; in Rails

  - by Trip

  I am trying to remove all &nbsp;'s in my model with the following method : def about_us_sans_spaces self.about_us = replace(self.about_us, "&nbsp;", " ") end Except! it turns out 'replace' isn't a method in rails. How would you remove the  s? Mind you, I have already tried sanitized, simple_format. My view looks like this right now: = truncate(sanitize(simple_format(organization.about_us_sans_spaces), :tags => ''), 125).titleize

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