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• How does volatile actually work?

  - by FredOverflow

  Marking a variable as volatile in Java ensures that every thread sees the value that was last written to it instead of some stale value. I was wondering how this is actually achieved. Does the JVM emit special instructions that flush the CPU cashes or something?

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• Translate COM error codes in C#

  - by Paul Keister

  In C, Pascal, and C++ it is possible to use the FormatMessage function to retrieve a "friendly" error message that corresponds to a COM HRESULT error code. This question contains sample code that demonstrates the C++ approach. Of course it would be possible to build a managed C++ assembly to perform this function for C# and VB.NET code, but I'm wondering: is there a way to translate COM error codes using the .NET system libraries?

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• jQuery and iterating on JSON objects.

  - by The Devil

  Hey everybody, I'm currently trying to figure out how can I iterate over all of the objects in an JSON response. My object may have endless sub objects and they may also have endless sub objects. { "obj1" : { "obj1.1" : "test", "obj1.2" : { "obj1.1.1" : true, "obj1.1.2" : "test2", "obj1.1.3" : { ... // etc } } } } I was just wondering if there is a out of the box script that can handle such kind of objects? Thanks in advance, The Devil

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• Divide and conquer method to compute roots [SOLVED]

  - by hellsoul153

  Hello, Knowing that we can use Divide-and-Conquer algorithm to compute large exponents, for exemple 2 exp 100 = 2 exp(50) * 2 exp(50), which is quite more efficient, is this method efficient using roots ? For exemple 2 exp (1/100) = (2 exp(1/50)) exp(1/50) ? In other words, I'm wondering if (n exp(1/x)) is more efficient to (n exp(1/y)) for x < y and where x and y are integers.

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• Scrapy - Follow RSS links

  - by Tupak Goliam

  Hello, I was wondering if anyone ever tried to extract/follow RSS links using SgmlLinkExtractor/CrawlSpider. I can't get it to work... I am using the following rule: rules = ( Rule(SgmlLinkExtractor(tags=('link',), attrs=False), follow=True, callback='parse_article'), ) (having in mind that rss links are located in the link tag). I am not sure how to tell SgmlLinkExtractor to extract the text() of the link and not to search the attributes ... Any help is welcome, Thanks in advance

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• Has anybody integrated generated code from beanwizard.com?

  - by clb180

  Has anybody integrated Java code generated from beanwizard.com? Wondering if it works well and is worth it...

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• Exclude files only in "release" in VS2008 config

  - by Tom

  Hi Guys, I was wondering how to "Exclude" individual files in the "release" web.csproj config of my solution. I've seen other answers and they all feature "include" - but this is not what I am wanting to achieve. I only want to exclude around 10-15 files from a "release" package ? I don't want to manually edit the web.csproj file - so is there any way I can do this via web.config or ? How would I go about doing this ?

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• Software with Malicious Intent binded to executable!?

  - by Brandon

  I had some software created for me by a coder overseas. I got a little paranoid since the software is executable. I started wondering if they could possibly have binded a key logger to the application they made for me or any kind of software with malicious intent. How could I find out?

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• How to use XDocument.load / save methods on a password protected network drive?

  - by Tomh

  Hi, I'm wondering what the best way is to use the XDocument.load and save methods on files located on a password protected netshare. I'm building an asp.net mvc application.

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• Can you play video fragements using oggz-chop?

  - by leeand00

  I see that you can play ogg audio files, but I was wondering if you can play video ogz files using it using Apache? http://www.xiph.org/oggz/

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• Pass function as parameter in PHP

  - by Casidiablo

  Hello everybody! I've been wondering whether is possible or not to pass a function as parameter in PHP; I want something like when you're programming in JS: object.exampleMethod(function(){ // some stuff to execute }); What I want is to execute that function somewhere in exampleMethod. Is that possible in PHP? Thank you so much.

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• Is there any difference between using typeset in ksh to simply setting a variable?

  - by ennuikiller

  Are the following 2 lines completely equivalent? If not what's the difference? I've seen plently of shellscripts utilize number 1 and was just wondering what it gives you compared with number 2. typeset TARGET="${XMS_HOME}/common/jxb/config/${RUNGROUP}.${ENV}.properties" TARGET="${XMS_HOME}/common/jxb/config/${RUNGROUP}.${ENV}.properties"

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• Silverlight or MVC for Web Development

  - by jhorback

  I was just wondering about the opinions out there. What do you think promotes faster development times for a web application? Silverlight or .Net MVC? And could Silverlight be a replacement for a true http web application? Feel free to rant or give as much details as necessary.

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• using an array in a custom formula in crystal reports xi

  - by Kim Sharpe

  I have a formula which is working; the formula uses an array. I tried to extract the formula to create a custom formula but now get an error in the syntax. I am wondering if the array is causing the problem as the error is on the line: last_element_current:=val(sc_array[1]) + 1; and the error is: the ) is missing and highlights the variable sc_array before the index [1].

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• Emulate disk IO speeds in Android SDK

  - by Ben L.

  I don't have a physical Android device to work with, so all I can use is the emulator. I'm wondering if there's something I could use to make the IO speeds more realistic - How do I slow down disk access to the speed it would be on a physical device? Also, this may be unrelated, but when I change the speed and latency options in Eclipse ADT DDMS view, I don't notice any change in internet speed on the emulator. Is this a bug?

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• Installing software on Solaris

  - by sturda

  I'd like to install several unix utilities (incl. xmlstarlet, wget) on a solaris 10 machine which I don't have root access to (obviously, I have a user account). I'm not that experienced with solaris and am wondering if I can simply get hold of an uber binary for each utility I need and just place this in my home directory? Is this feasible? Many thanks

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• Branching Strategies

  - by Craig H

  The company I work for is starting to have issues with their current branching model, and I was wondering what different kinds of branching strategies the community has been exposed to? Are there any good ones for different situations? What does your company use? What are the advantages and disadvantages of them?

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• Is Prince the best way to PDF in Ruby on Rails?

  - by Angela

  After several Google searches, it appears that the way to create PDF's in Rails from HTML and CSS (versus a new markup language) is to use Prince. With licensing at $3800 for my non-big-commercial app, I'm wondering if this is, in fact, consensus or people have an alternative they can share the what's and how's.

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• Programming Language with Inflection

  - by SHiNKiROU

  Is there a programming language that uses inflections (suffixing a word to add a certain meaning) instead of operators to express instructions? Just wondering.

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• Upload a file by filling it in HTTPRequest!

  - by OneDeveloper

  Hi, I am wondering, if I create a new HttpRequest, and put the content of a simple file inside this request, would I be able to read the content on the server side by aspx page? in other words would that be equivalent to upload control? Thanks!

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• Override a Rails Engine controller action

  - by sad sheep

  Hello, i'm using a Rails engine, but i need to customize some controllers actions. I actually forked the engine, and implementing those customizations into my own fork, but i was wondering if there is an official way in Rails Engines to override and customize controllers.

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• What is the advantage of the 'src/main/java'' convention?

  - by Chris

  I've noticed that a lot of projects have the following structure: Project-A bin lib src main java RootLevelPackageClass.java I currently use the following convention (as my projects are 100% java): Project-A bin lib src RootLevelPackageClass.java I'm not currently using Maven but am wondering if this is a Maven convention or not or if there is another reason. Can someone explain why the first version is so popular these days and if I should adopt this new convention or not? Chris

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• Updating and Editing Google Contacts - Ruby Gem

  - by Kyle

  I'm attempting to interact with the Google contacts API through Rails via and oauth-plugin. I need to retrieve and update Google contacts. I know that the portablecontacts gem will retrieve contacts, but does not allow for adding or updating. I was wondering if anyone knew of a gem that will handle this type of interaction. If not what would be the best method to implement a gem that would make it easier to handle the responses.

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• ASP.Net File Upload Network Issue

  - by John Delate

  I have tried both the .net FileUpload control and the ajax Asyncfileuploadcontrol to upload a file less than 500kb. It seems that when I tried to go through my wireless router (att.bellsouth) that the uploads always fail, however when I plug my droid into my laptop and use my pda connection it works perfectly fine. I'm wondering if the network connection from my house to my server could be causing this issue, and if anyone had any solutions to this problem. Tomorrow I'm going to try and upload from other networks and pray it works.

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• Mysql count how many queries per second are executed, is there any way ?

  - by Nikos

  Hello, i have a busy web server with LAMP installed, and i was wondering, is there any way to count how many queries per second (mysql) are executed in the server ? Thank you.

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