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  • Google sort Supersonic, un moteur de requêtes open source écrit en C++ qui accélère le temps de traitement des données

    Google sort Supersonic un moteur de requêtes open source écrit en c++ qui accélère le temps de traitement des données Google vient d'annoncer sur son blog dédié à l'open source, la publication de Supersonic, un moteur pour optimiser l'exécution des requêtes. Supersonic est une bibliothèque de moteur de requêtes écrit en C++, qui « est extrêmement utile pour créer un back end pour une base de données orientée colonnes ». Selon Google, sa force principale réside dans sa vitesse. L'outil est un moteur de cache-aware, qui exploite plusieurs techniques d'optimisation de bas niveau pour assurer des meilleurs temps d'exécution et un débit élevé. Grâce à l'utilisation...

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  • Images from remote source - is it possible or is really a bad practice?

    - by user1620696
    I'm building a management system for websites and I had an idea related to image galleries that I'm not sure it's a good approach. Since images might need good deals of space depending on how much images a user uploads an so on, I thought on using cloud services like dropbox, mega and google drive to store images and load then when needed. The obvious problem is that for me this seems a useless solution because it would be slow to download the images from the remote source, making the user experience not so good. Is there any way to save images of a image gallery on remote source without getting the user experience bad because of speed? Or this is really not a good practice?

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  • Microsoft sort en open source NPM.NET, une bibliothèque qui facilite la gestion des modules Node.js dans une application

    Microsoft sort en open source NPM.NET une bibliothèque qui facilite la gestion des modules Node.js dans une application Bonne nouvelle pour les développeurs Node.js qui éprouvent des difficultés pour gérer les différents modules qui sont utilisés dans leurs applications reposant sur la librairie serveur JavaScript. Microsoft vient de publier en open source NPM.NET, une bibliothèque .NET pour le gestionnaire de modules Node.js (NPM). NPM.NET a été développé à la base pour être utilisé dans une extension pour WebMatrix 2, l'environnement de développement Web gratuit de Microsoft tout-en-un. La bibliothèque permet à l'EDI de disposer d'une interface graphique sous fo...

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  • What does the PHP configuration option "--prefix=PREFIX" do?

    - by Xeoncross
    I have heard that setting the --prefix=PREFIX option when compiling PHP on linux will allow you to have more than one install of PHP at a time without them clashing. (I think the default if this isn't set is /usr/local). However, I'm not sure what exactly it does or what a good setting to use is. Furthermore, I've also heard that setting it to something other than the default value might make some PHP extensions harder to install. ./configure --prefix=PREFIX ...

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  • How can you build a C++ library to produce a .lib file for use in another project?

    - by Codereview
    I tried to use Cmake for the first time, I tried adding a library to my project (Specifically, PhysFS) but then I understood that the library had no .lib file or .a file at all, so I have to build those somehow. I have no clue where to even start around going this, what should I do? Someone suggested I'd go to the project folder and type "Cmake ..." then "Make ..." but I was clueless as to how I'd do that. How would I build the library headers and source files in a .lib file that I can link in C::B? I'm using Windows XP SP3

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  • codingstyle "blanking after open and before close brackets"

    - by Oops
    I really like the "blanking after open and before close brackets"-codingstyle in modern codes Java/C#/C++ . e.g. calling a function: foo(myparam); // versus foo( myparam ); Do you have a better name for this codingstyle? where does it come from? Do you like it either, what is the reason for you to use it or not use it? a few years ago people said "you are blanking" if one has used too much blank space characters in a forumspost or email. many thanks in advance regards Oops edit: two cons, any pros out there?

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  • How to start working in a team on a project? [closed]

    - by Adio
    Ok, for the first time in my life I am going to work in a team. The problem is that all the team members including me are junior developers and for all of us this is the first time we are working in a team. The problem is that we do not know how to start the project. We know a little about scrum and agile development, we have our user stories in place and our created project - which does not have even one piece of code - and now we are stuck and don't know how and what to do? All scrum books talk about scrum development but lack of the details like how to start. How my team will know what object I am using? How we will push the first piece of code and what it will be? Any help will be great. Books, articles, advice, or anything.

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  • App crashing on open on Motorola Backflip only

    - by anakin78z
    I have recently published my second app on the Android Market. I've gotten a few e-mails about the app crashing on open, and all users were using the Motorola Backflip. It seems to work fine on all other devices. The app shows the background image, but crashes right after that. Is there something different I have to do when coding for that device? The strange thing is that it is very similar to my first app, which seems to work just fine for them. The major difference is that my second app is a paid app, and uses Android Licence Verification. My implementation should catch any license errors though, and I've tested this on my device. Users have uninstalled and reinstalled the app without success. I'm stumped. The other thing they're reporting is that the icon doesn't even show properly, but rather is a gear in a box, which makes me think that something goes awry very early in the installation process.

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  • Want to open Shadowbox gallery directly through Wordpress Navigation Menu

    - by Kevin A.
    I want to be able to open my shadowbox gallery in wordpress by directly clicking the portfolio link in the navbar. Right now it either opens the portfolio page I made with the gallery in it or opens images separately (without shadowbox), this was because I tried adding html to the Nav Label in the wordpress dashboard. Basically want to be able to add this html to the link in the menu dashboard while having the one PORTFOLIO link: <a href="/portfolio_images/fashion/01.jpg" rel="shadowbox[fashion]"> <a href="/portfolio_images/fashion/02.jpg" rel="shadowbox[fashion]"> <a href="/portfolio_images/fashion/03.jpg" rel="shadowbox[fashion]"> Thanks Main page with nav links

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  • set "Image File Execution Options" will always open the named exe file as default

    - by Weixiao.Fan
    just as this link says : http://untidy.net/blog/2009/11/03/replacing-notepad-with-pn-via-image-file-execution-options/ I wanna replace Notepad.exe to Notepad2.exe using "Image File Execution Options" function by run this command reg add "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\notepad.exe" /v "Debugger" /t REG_SZ /d "\"c:\windows\Notepad2.exe\" /z" /f but, when I run notepad, it open file c:\windows\notepad.exe in notepad2.exe as a text file by default. Is there a way to avoid that? I know using this tech Notepad.exe will as the first param passed to Notepad2.exe. but I don't know how to avoid this :(

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  • Building a financial app with Django

    - by mfalcon
    Hi guys, I'm building an app for a small business so I've to work with currencies, decimal numbers, etc... My goal is to create something like pulseapp.com. I've searched for opensource projects to look and the only thing I had found was django-cashflow. This app uses python-money. I've read some of the code and the ways it's coded seems a bit weird to me and it's not fully complete. Is the app worth to take a deep look? Does anyone know about another similar app? Is the task difficult or a begginer like me could find a way to code it himself?

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  • What methodology to use for planning/developing a Language conversion project?

    - by user 123
    I am trying to help my friend by creating a part of his on-going project. What I'm going to do is create a Java parser to break up the Java code into operators, parameters etc to build XML representation. Next I want to create a code generator to convert the parsed java code to XML conforming to the schema I've created. Finally I want to use an XML style-sheet to transform the XML into another programming language type. Basically I just wanted some advice on which methodology/model I should use for planning and developing this project. Is there some benefit to using Agile etc for instance?

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  • Facebook Open Graph Debugger Error

    - by Darshanjit Badrain
    Hi I am new to programming and have tried to make a facebook app with open graph beta tutorial. I have done exactly as described in the tutorial but when i try to use the debug tool it gives me an error: Extraneous Property: Objects of this type do not allow properties named og:app_id. I have noticed and searched that its doing this because the tag needs to be <fb:app_id>. I checked my file it says fb:app_id only, but the raw data that pulls up on the debug tool shows meta property="og:app_id" content="267029796703617" even though i have changed and uploaded with fb:app_id. I have checked my page several times and tried some possible solutions but have had no success. Can someone help me fix this.

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  • Build model with nested model in rspec integration test

    - by user1116573
    I understand that I can do something like in rspec: let(:project) { Project.new } but in my app a project accepts_nested_attributes_for tasks and when I generate the Project form I build a task along with it using: @project = Project.new @project.tasks.build I need something like: let(:project) { Project.new.tasks.build } but that doesn't seem to work. How can I do this as a let in my rspec test?

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  • Open URL with Safari no matter what system browser is set to

    - by Mark
    In my objective-c program, I need to open a URL in Safari no matter what the system's default browser is. That means that this won't work, because it could launch Firefox or whatever other browser: NSWorkspace * ws = [NSWorkspace sharedWorkspace]; [ws openURL: url]; I think I'm close with this: [ws launchAppWithBundleIdentifier: @"com.apple.Safari" options: NSWorkspaceLaunchWithoutActivation additionalEventParamDescriptor: NULL launchIdentifier: nil]; only need to figure out how to pass in the URL as parameter... Is there an easier way? Thanks!

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  • Microsoft intègre Git à Codeplex, la plateforme d'hébergement de projets open-source supporte l'application de gestion des versions

    Microsoft intègre Git à Codeplex La plateforme d'hébergement de projets open source supporte désormais l'application de gestion des versions en plus de Mercurial et TFS Codeplex, la plateforme d'hébergement des projets open source de Microsoft prend désormais en charge Git. Git est une application de gestion des versions décentralisée libre créée par Linux Torvalds, le père du noyau Linux et distribuée sous la licence GNU 2. CodePlex utilise déjà le logiciel de gestion des versions décentralisé Mercurial, pour le contrôle de version distribué et Team Foundation Server (qui prend en charge les clients Subversion) pour le contrôle de version centralisée. Malgr...

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  • Mercurial adding new file gives no match found error

    - by Ivo
    I have a strange problem with updating Mercurial. Everytime when I add a file to my repository and then update another location of the repository (for example with in CI process), the error "no match found" occures. Then when I remove to whole folder and clone it again there are no problems and the new added file(s) are there. Updating and removing doesnt give problems When I do "a" Verify the following is shown: data/test.txt.i@54: missing revlog! 54: empty or missing test.txt test.txt@54: b80de5d13875 in manifests not found 3 integrity errors encountered! (first damaged changeset appears to be 54) Any idea what could be causing this?

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  • Coverity publie Coverity Security Library, une bibliothèque open-source pour identifier les défauts de sécurité dans les applis Web Java

    Coverity publie Coverity Security Library Une bibliothèque open source pour identifier les défauts de sécurité les plus courants dans les applis Web Java Coverity, un des leaders du marché du test de développement, vient d'annoncer la création de la Coverity Security Library, un projet open source (disponible via GitHub et Maven) pour aider les développeurs à réparer les attaques de type cross-site scripting (XSS) dans les applications Web Java. Ce projet a été initié par le Security Research Laboratory de Coverity. Il s'agit d'une bibliothèque de fonctions de contournement et de codage gratuite. « Les développeurs peuvent ainsi réparer rapidement les problèmes les plus courants, qui p...

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  • GNU General Public License (v2): can a company use the licensed software for free?

    - by EOL
    When a library is released under the GPL v2, can a company use it internally for free? If they develop software based on it, do they have to release it under the GPL, even if they don't distribute it? Can they make money by using (not distributing) internally developed software that links to the GPL'ed library, without any compensation for the author? I am looking for a software license that only allows non-commercial uses (copy, modify, link to); the resulting derived programs must also be free for non-commercial uses. Is there any software license that does this for non-commercial uses, and prevents any commercial use (including using the software in order to make money)? It looks like the Creative Commons licenses are flexible enough to do something close to that, but I've read against using them for software. What do you think?

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  • System.getProperty("user.dir") cannot get my project root path ,but the path which my eclipse is located

    - by facebook-100005613813158
    As the title goes , I have class named GetException.java,inside it ,I read a xml file in a static code block like(Because this document is shared): static{ ... document = db.parse(new File(System.getProperty("user.dir")+"/src/exception/ExceptionCode.xml")); ... } To test if the file path is correct, I write a main function just inside GetException.java, it proves that the path is correct ,xml file can be read successfully. My project root dir is "/home/wuchang/workspace/MongodbI". But When this Class is loaded from other class,such as I called one of its static functions , it reports the error message: /home/mrs/??/eclipse/src/exception/ExceptionCode.xml (No such file or directory) /home/mrs/??/eclipse/ is actually my eclipse installation directory.So , I wander how System.getProperty("user.dir") returned the eclipse installation directory to me ,instead of my project root directory?

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  • Using Git or Mercurial, how would you know when you do a clone or a pull, no one is checking in file

    - by Jian Lin
    Using Git or Mercurial, how would you know when you do a clone or a pull, no one is checking in files (pushing it)? It can be important that: 1) You never know it is in an inconsistent state, so you try for 2 hours trying to debug the code for what's wrong. 2) With all the framework code -- potentially hundreds of files -- if some files are inconsistent with the other, can't the rake db:migrate or script/generate controller cause some damage or inconsistencies to the code base?

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