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• How to check if a file is a DLL?

  - by PierreBdR

  Given a file, I want to check if this is a DLL, or a shared object (Linux) or a dylib (Mac OS X), or something different. My main interest is differentiating executable and DLL on Linux and Mac OS X. For windows, the extension should be enough for my problem. I already checked that the magic number technique doesn't work for Linux as executable and shared objects both have the same number.

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• latex - including a landscape pdf

  - by flyingcrab

  Having no end of trouble including a large landscape pdf in a portrait .tex document (using pdflatex). When it does show up, only the leftmost end of the pdf shows up, now matter how small i make the scale. And i cant seem to get it to show in landscape mode at all... Is anything wrong with the code i am using? \begin{landscape} \includegraphics[scale=0.1]{Appendix2.pdf} \end{landscape}

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• Java test specific property of an object using Collection.contains()

  - by DrDro

  In Java how to test if a Collection of objects contains an object depending on one of its properties. For example I would like to test if Collection<myObjects> contains an instance of myObjects which has myObjects.name = "myName".

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• What data structures and algorithms are applied within data warehouse cubes?

  - by Jeff Meatball Yang

  I understand that cubes are optimized data structures for aggregating and "slicing" large amounts of data. I just don't know how they are implemented. I can imagine a lot of this technology is proprietary, but are there any resources that I could use to start implementing my own cube technology? Set theory and lots of math are probably involved (and welcome as suggestions!), but I'm primarily interested in implementations: the data structures and query algorithms. Thanks!

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• What sort of Circular Dependencies does Oracle allow?

  - by Neil

  Hi all, I am creating test cases and I need to cover circular dependencies. So far I have been able to create two tables such that Table A has a FK to B and B has a FK to A. What other circular dependencies exist / are allowed between objects? I tried to create cycles between Views but Oracle successfully rejected that.

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• UIBarButtonItem Image is not shown and instead a white rectangle in the size of image is shown, Why?

  - by wolverine

  With whatever image I try to intialize the UIBarButtonItem, its just showing a white background in the size of the image. Even when I tired in interface builder, the result is the same. All these images when used with other objects works perfectly. How can I solve this??

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• Twitter json output

  - by Bunny Rabbit

  $(function(){ $.ajax({ url:'http://api.twitter.com/1/statuses/user_timeline.json?screen_name=user_name&callback=?', //dataType:'json', success:function(data){$('body').append('the data is' +data);} }); }); the above code with dataType line prints out [objects] while with the dataType line commented it prints out nothing ...how can i get it to print the json output from the server rather then the javascript object?

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• Asp.net mvc, entity framework, Poco - Architecture

  - by user1576228

  I have a "small" enterprise application, aspnet mvc 3 + entity framework with POCO entity and repository pattern. I structured the solution in 4 projects: POCO entities Domain model Services web application When the application performs a query on the database, use one of the services provided, the service uses the repository and the small classes, as a result I have some dynamic proxy objects that I would like to convert in my domain entities, before using them in mvc views, but I do not know how. Dovrebber be set as the translator? This approach is reasonable?

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• Android how to create runtime thumbnail

  - by Faisal khan

  I am having image large size image, at run time i want read image from storage and scale it so that its weight and size will be reduce and i can use it as thumbnail when user click on thumbnail i will display full size image.

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• Repeating procedure for every item in class

  - by Hendriksen123

  Data.XX.NewValue := Data.XX.SavedValue; Data.XX.OldValue := Data.XX.SavedValue; I need to do the above a large number of times, where XX represents the value in the class. Pretending there were 3 items in the list: Tim, Bob, Steve. Is there any way to do the above for all three people without typing out the above code three times? (Data is a class containing a number of Objects, each type TList, which contain OldValue, NewValue and SavedValue)

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• Implementing dynamic scope when using CPS as intermediate language

  - by asandroq

  I am currently studying the implementation of programming languages and became interested in using Continuation-Passing Style as the intermediate language of the compiler. I also want to implement limited dynamic scope (for exception-handling or Scheme parameter objects) but I cannot find the relevant literature. I think it can be done with a separate environment passed as a variable to every closure, but this solution seems ugly to me. Could anyone point me to the relevant literature, or give me an idea of how this can be done?

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• LVM_INSERTITEM very slow in vista/W7

  - by nikos

  in a large listview control collection (say 5000 items), adding a SINGLE extra item can take 10+ seconds in windows vista/7, and that's just the LVM_INSERTITEM message handling it looks that it only affects LVS_ICON, LVS_REPORT and LVS_LIST are still very fast can anybody confirm this? the same code on windows XP with similar listview window styles adds an extra item instantly thanks nikos

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• MATLAB image processing HELP!

  - by beho86

  Hello, I am trying to find the area of some regions on an image. http://img821.imageshack.us/img821/7541/cell1.jpg For example, I want find the area of the dark-large region on the upper left side. and I want to find the area of any of the closed geometry from the image. How can I do that in matlab. I looked online and I tried regionprops(), but it didn't identify the different regions.

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• Reading a file N lines at a time in ruby

  - by Sam

  I have a large file (hundreds of megs) that consists of filenames, one per line. I need to loop through the list of filenames, and fork off a process for each filename. I want a maximum of 8 forked processes at a time and I don't want to read the whole filename list into RAM at once. I'm not even sure where to begin, can anyone help me out?

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• Best practices for caching results of JSP pages?

  - by Spines

  My application has an MVC structure. How should I structure my application to allow for maximum caching? Is it sufficient to only cache the model objects that are passed to the JSP views? Or will there be a significant performance boost from caching the results of the rendering of the JSP views too?

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• Is undefined behavior worth it?

  - by Space_C0wb0y

  Many bad things happened and continue to happen (or not, who knows, anything can happen) due to undefined behavior. I understand that this was introduced to leave some wiggle-room for compilers to optimize, and maybe also to make C++ easier to port to different platforms and architectures. However the problems caused by undefined behavior seem to be too large to be justified by these arguments. What are other arguments for undefined behavior? If there are none, why does undefined behavior still exist?

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• FastVectorHighlighter.Net returning null on GetBestFragment

  - by Midhat

  Hi I have a large index, on which Highlighter.Net works fine, but FastVectorHighlighter returns null as a Best Fragment on Some documents. the searcher works fine. It is just the highlighter. The field has been indexed in the same manner for all documents, so I fail to understand Why it highlights some documents but not all. Using Lucene.Net 2.9.2, built from trunk rev942061

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• NSKeyedArchiver / Unarchiver

  - by Tejaswi Yerukalapudi

  Hi, I'm using NSKeyedArchiver to persist multiple objects in my application. The persistence is working fine, but I can't find a way to delete a specific object from the file. How do I delete this object programmatically? Thanks, Teja

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• C# DateTime Class and Datetime in database

  - by Spyros

  Hello . I have the following problem. I have an object with some DateTime properties , and a Table in database that I store all that objects , in Sql server I want to store the DateTime properties in some columns of DateTime Datatype, but the format of datetime in sql server is different from the DateTime class in c# and I got an sql exception saying "DateTime cannot be parsed". I know how to solve this by making the format yyyy-MM-dd but is this the proper and best solution to do this?

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• Is there a pretty print for PHP?

  - by Aaron Lee

  I'm fixing some PHP scripts and I'm missing ruby's pretty printer. i.e. require 'pp' arr = {:one => 1} pp arr will output {:one = 1}. This even works with fairly complex objects and makes digging into an unknown script much easier. Is there some way to duplicate this functionality in PHP?

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• Has anyone here tried using the iSeries Python port?

  - by nearly_lunchtime

  I found http://www.iseriespython.com/, which is a version of Python for the iSeries apparently including some system specific data access classes. I am keen to try this out, but will have to get approval at work to do so. My questions are: Does the port work well, or are there limits to what the interpreter can handle compared with standard Python implementations? Does the iSeries database access layer work well, creating usable objects from table definitions?

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• How can I obfuscate email addresses contained in 'free input' text fields in Django

  - by bitbutter

  In my models I often use text fields that are intended to contain large pieces of textile-formatted input. I'd like to automatically obfuscate any email addresses that are entered into these text fields, so that when they're printed in a template they're not visible to spiders. Is there a smart way to do this?

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• Get Auto Increment value with MySQL query

  - by James Simpson

  I currently have a database with over 6 million rows and growing. I currently do SELECT COUNT(id) FROM table; in order to display the number to my users, but the database is getting large and I have no need to store all of those rows except to be able to show the number. Is there a way to select the auto_increment value to display so that I can clear out most of the rows in the database? Using LAST_INSERT_ID() doesn't seem to work.

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• How does Java handle multithreading?

  - by badcodenotreat

  How does Java decide which core to assign a thread or a process? Is there any way to control that? to prevent two large threads from executing on the same core? Basically what I am asking is for further information on either how multi-threading works in Java, or how to control it within Java.

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• Flex to Flex simple TCP connection

  - by Naveen kumar

  Hi all, I'm working on a large file transfer(P2P) in UDP air application. I want to connect client and server using TCP. Can anybody tell me how to connect both both in TCP. Thank you.

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