Search Results

Search found 5562 results on 223 pages for 'poco libraries'.

Page 1/223 | 1 2 3 4 5 6 7 8 9 10 11 12  | Next Page >

  • Poco library for c++, declare namespace for custom element

    - by Mikhail
    I want to create an XML document by building a DOM document from scratch, with syntax like: AutoPtr<Document> doc = new Document; AutoPtr<Element> root = doc->createElement("root"); doc->appendChild(root); AutoPtr<Element> element1 = doc->createElementNS("http://ns1", "ns1:element1"); root->appendChild(element1); AutoPtr<Element> element2 = doc->createElementNS("http://ns1", "ns1:element2"); root->appendChild(element2); DOMWriter writer; writer.setNewLine("\n"); writer.setOptions(XMLWriter::PRETTY_PRINT); writer.writeNode(std::cout, doc); But, when I write it, I get next result: <root> <ns1:element1 xmlns:ns1="http://ns1"/> <ns1:element2 xmlns:ns1="http://ns1"/> </root> So namespace ns1 declared two times, and I want to declare it inside "root" element. Is there way to get next representation: <root xmlns:ns1="http://ns1"/> <ns1:element1/> <ns1:element2/> </root>

    Read the article

  • How do you find libraries(C++) in Ubuntu?

    - by Bora George
    Sorry this is such a beginner question, but I've recently begun programming with C++ on Ubuntu 12.10 and I've installed a few libraries I need to work with, for example PCL and I can't find them to add them to my project, I'm using QTcreator as the IDE and qmake which comes with it. For example with PCL I followed the instructions on their site: sudo add-apt-repository ppa:v-launchpad-jochen-sprickerhof-de/pcl sudo apt-get update sudo apt-get install libpcl-all And as no problems occurred I have to assume they are correctly installed. Most of the tutorial dealing with adding external libraries I've found on the web assume you're on windows and know where you downloaded the library. Since I don't have experience with adding external libraries in C++, could someone please tell me in what file, if there is one, are libraries installed by default in Ubuntu? What is the extension of these library files? Is there a script/command which can help detect a library or all the libraries installed?

    Read the article

  • Questions about linking libraries in C

    - by james
    I am learning C (still very much a beginner) on Linux using the GCC compiler. I have noticed that some libraries, such as the library used with the math.h header, need to be linked in manually when included. I have been linking in the libraries using various flags of the form -l[library-name], such as -lm for the above-mentioned math library. However, after switching from the command line and/or Geany to Code::Blocks, I noticed that Code::Blocks uses g++ to compile the programs instead of the gcc that I am used to (even though the project is definitely specified as C). Also, Code::Blocks does not require the libraries to be manually linked in when compiling - libraries such as the math library just work. I have two questions: Firstly, is it "bad" to compile C programs with the g++ compiler? So far it seems to work, but after all, C++ is not C and I am quite sure that the g++ compiler is meant for C++. Secondly, is it the g++ compiler that is doing the automatic linking of the libraries in Code::Blocks?

    Read the article

  • Learning resources for working with POCO entities in EF 4.0

    - by boghydan
    Here are some links that can help you start working with POCO entities in EF 4.0: ADO.NET Team blog: - Working with POCO objects: http://blogs.msdn.com/adonet/archive/2009/05/21/poco-in-the-entity-framework-part-1-the-experience.aspx - Proxy objects for POCO entities: http://blogs.msdn.com/adonet/archive/2009/12/22/poco-proxies-part-1.aspx MSDN Library: - Working with POCO  http://msdn.microsoft.com/en-us/library/dd456853.aspx - T4 editor for POCO generator can be downloaded from here: http://visualstudiogallery.msdn.microsoft.com/en-us/60297607-5fd4-4da4-97e1-3715e90c1a23

    Read the article

  • What C++ libraries can be used in game development [closed]

    - by RedShft
    I'm currently in the planning stage for my next game, and since I've been away from C++ for a while I have some questions about helpful libraries. I plan on making a 2D game with SDL, constructing my own simple 2D engine. I plan on making this game for the PC. What libraries would you recommend to make this process easier? What about unittests? What about an enforce operator to throw exceptions? int a = 1; enforce(a == 2); //Throws an exception, Specifically, i'm looking for general purpose libraries, that implement that make my life easier (like boost). Also, a helpful library for physics/collision, AI, XML file parsing (specifically working with the Tiled map editor), and any others that you guys have used that are useful in a 2D game.

    Read the article

  • what is Entity Framework with POCO

    - by pdiddy
    What is the benefit of using POCO? I don't understand the meaning of Persistence Ignorance, what does this mean? That the poco object can't expose things like Save? I can't wrap my head around this POCO that there's alot of buzz around. What is the difference with the EF generated entities and POCO?

    Read the article

  • signal processing libraries

    - by khinester
    Are there any open source libraries/projects which work in a similar way to http://www.tagattitude.fr/en/products/technology? I am trying to understand the process. At first I thought this could work like when you send a fax to a fax machine. It is basically using the mobile phone’s microphone as a captor and its audio channel as a transporter. Are there any libraries for generating the signal and then being able to decode it?

    Read the article

  • android third party libraries

    - by Terrance
    Its hard to believe that there aren't a ton of awesome third party (possibly open source) libraries out on the web for android using java but, I cant say I have found a great many so far but, droid seems like the only notable one I've come across. Any other majorly useful android libraries out there? Sorry in advanced if there is a dupe out there somewhere (seems like there should be) but if there is by all means post it and let me know.

    Read the article

  • Language Niches and Niche Libraries

    - by Roman A. Taycher
    "Everyone Knows" ... ... that c is widely used for low level programs in large part because operating system/device apis are usually in c. ... that Java is widely used for enterprise applications in large part because of enterprise libraries and ide support. ... that ruby is widely used for webapps thanks in large part because of rails and its library ecosytem But lets go into to details what are the specific niches and subniches. Especially with respect to libraries. Where might you embed lua for application scripting versus python. Where would you use Java vs C#. Which languages do different scientists use? Also which languages have libraries for these subniches? Things like bioperl/scipy/Incanter. Please no flamewars about how nice each language or environment is. This is where they used. Also no complaints about marketing/PHBs. (Manually migrated) I asked this question again after it was closed on stackoverflow.com

    Read the article

  • Entity Framework 4 + POCO with custom classes and WCF contracts (serialization problem)

    - by eman
    Yesterday I worked on a project where I upgraded to Entity Framework 4 with the Repository pattern. In one post, I have read that it is necessary to turn off the custom tool generator classes and then write classes (same like entites) by hand. That I can do it, I used the POCO Entity Generator and then deleted the new generated files .tt and all subordinate .cs classes. Then I wrote the "entity classes" by myself. I added the repository pattern and implemented it in the business layer and then implemented a WCF layer, which should call the methods from the business layer. By calling an Insert (Add) method from the presentation layer and everything is OK. But if I call any method that should return some class, then I get an error like (the connection was interrupted by the server). I suppose there is a problem with the serialization or am I wrong? How can by this problem solved? I'm using Visual Studio S2010, Entity Framework 4, C#. UPDATE: I have uploaded the project and hope somebody can help me! link text UPDATE 2: My questions: Why is POCO good (pros/cons)? When should POCO be used? Is POCO + the repository pattern a good choice? Should POCO classes by written by myself or could I use auto generated POCO classes?

    Read the article

  • Ogre Specific libraries

    - by Molmasepic
    i have a simple question. For people that know and built ogre3D from source as a Static library, What is the order of which the libraries should be linked? The libraries I need to be organized are: Ogre Plugins 'libOgreMain.a' Ogre RenderSystems Boost(version 1.47)link Ogre's Dependencies The reason im asking is because in the Ogre forums, I have asked about this and didnt get a good reply...yet. The other reason is because even though i link to the boost library, i get this error: undefined reference to '_imp___ZN5boost6thread20hardware_concurrencyEv' My compiler is MinGW with CodeBlocks as the IDE And my Main Computer Im building on is Windows Vista 32 bit

    Read the article

  • Why is using C++ libraries so complicated?

    - by Pius
    First of all, I want to note I love C++ and I'm one of those people who thinks it is easier to code in C++ than Java. Except for one tiny thing: libraries. In Java you can simply add some jar to the build path and you're done. In C++ you usually have to set multiple paths for the header files and the library itself. In some cases, you even have to use special build flags. I have mainly used Visual Studio, Code Blocks and no IDE at all. All 3 options do not differ much when talking about using external libraries. I wonder why was there made no simpler alternative for this? Like having a special .zip file that has everything you need in one place so the IDE can do all the work for you setting up the build flags. Is there any technical barrier for this?

    Read the article

  • .NET Libraries Cost More Than Windows?

    - by Kevin Mark
    When looking into libraries to make my programming life a little bit easier I've (almost) always been disappointed by the prices offered. For instance, Actipro's WPF Studio is $650. I suppose that's worth it if you plan to make money from the use of those controls. But take a look at, say, Windows. Windows 7 Ultimate is just about $220. I consider Windows to be a far more complex and "worth-it" product/purchase than a library that runs on it. Why the significant difference in pricing? Do libraries really need to be so expensive, or do they need to charge more in order to make a decent some of money?

    Read the article

  • Why is using C++ libraries is so complicated?

    - by Pius
    First of all, I want to note I love C++ and I'm one of those people who thinks it is easier to code in C++ than Java. Except for one tiny thing: libraries. In Java you can simply add some jar to the build path and you're done. In C++ you usually have to set multiple paths for the header files and the library itself. In some cases, you even have to use special build flags. I have mainly used Visual Studio, Code Blocks and no IDE at all. All 3 options do not differ much when talking about using external libraries. I wonder why was there made no simpler alternative for this? Like having a special .zip file that has everything you need in one place so the IDE can do all the work for you setting up the build flags. Is there any technical barrier for this?

    Read the article

  • Services or Shared Libraries?

    - by Royal
    I work in an environment where we have several different web applications, where each of them have different features but still need to do similar things: authentication, read from common data sources, store common data, etc. Is it better to build the shared functionality into a set of services, to be called by the web apps, or is it better to make a shared library, which the webapps include? The services or libraries would need to access various databases, and it seems like keeping that access in a single place (service) is a good idea. It would also reduce the number of database connections needed. A service would also keep the logic in a single place, but then it could be argued that a shared library can do the same thing. Are there other benefits to be gained from using services over shared libraries?

    Read the article

  • Link to article on website libraries

    - by acidzombie24
    I just started another website and it has taken me 30mins to copy/paste my other website and delete stuff because I don't have a template. Theres lots of features I copied over that I haven't seen in libraries/templates. But I don't really know any libraries/templates. This site is ASP.NET. Some things I have is a string.format that escapes strings for HTML (so <hi> is text instead of a tag). Other features are adding or removing items in the url query, a class to pass in a ASP.NET error and log or convert it into a row in a db (I know about elmah but during development on my last site it wasn't Mono compatible), a mini AJAX library for success/fail/redirect/etc, a class to pass in a ASP.NET error and log or convert it into a row in a db and anything else I would use in every site. I don't like my (library) design because I wasn't expecting to do more then 2-3 websites and I am on my 5th. I don't know proper ASP.NET either so what is an article that explains how to make a great library/template for websites?

    Read the article

  • Where should libraries be placed, in windows?

    - by Gabriel Diaconescu
    I have just moved from Linux to Windows, and I have to use the Zend Framework library. Where should the library be placed? Directly on C drive Create a lib folder like C:/lib/ Create a lib folder in my user folder I am wondering if there is a classic folder where these kind of libraries are placed. Update:I am asking about the location on my own standpoint. The Zend Framework library is a PHP framework.

    Read the article

  • Well-tested libraries for player ratings?

    - by Lucky
    It's common in games to implement some sort of numerical ranking system -- the ELO system is usually used in chess. I could implement this system naively using Wikipedia's descriptions, but I suspect that this would open up a whole box of problems that have already been solved: rating inflation, etc -- for instance, the ELO system has a K constant that's 'fudged' according to rating, duration, pairings, statistics, ... What are some libraries (I'm looking at Python, but anything is okay) that implements rating systems? It also doesn't have to be ELO.

    Read the article

  • Libraries for game developement in c++? [on hold]

    - by LPeter1997
    It's time for me to start developing games in c++ (I have experience in game developement with xna and java). What libraries do you recommend? I tried Allegro, but the installation is pretty headcrushing already. Could you share me your experiences with the library(ies) you use? (maybe even advantages and disadvantages) By the way it's a good point if it can be easily connected to CodeBlocks or Dev-C++. Thanks for the answers!

    Read the article

  • If a library doesn't provide all my needs, how should I proceed?

    - by 9a3eedi
    I'm developing an application involving math and physics models, and I'd like to use a Math library for things like Matrices. I'm using C#, and so I was looking for some libraries and found Math.NET. I'm under the impression, from past experience, that for math, using a robust and industry-approved third party library is much better than writing your own code. It seems good for many purposes, but it does not provide support for Quaternions, which I need to use as a type. Also, I need some functions in Vector and Matrix that also aren't provided, such as rotation matrices and vector rotation functions, and calculating cross products. At the same time, it provides a lot of functions/classes that I simply do not need, which might mean a lot of unnecessary bloat and complexity. At this rate, should I even bother using the library? Should I write my own math library? Or is it a better idea to stick to the third party library and somehow wrap around it? Perhaps I should make a subclass of the Matrix and Vector type of the library? But isn't that considered bad style? I've also tried looking for other libraries but unfortunately I couldn't find anything suitable.

    Read the article

  • Generate POCO classes in different project to the project with Entity Framework model

    - by Max
    I'm trying to use the Repository Pattern with EF4 using VS2010. To this end I am using POCO code generation by right clicking on the entity model designer and clicking Add code generation item. I then select the POCO template and get my classes. What I would like to be able to do is have my solution structured into separate projects for Entity (POCO) classes and another project for the entity model and repository code. This means that my MVC project could use the POCO classes for strongly typed views etc and not have to know about the repository or have to have a reference to it. To plug it all together I will have another separate project with interfaces and use IoC. Sounds good in my head I just don't know how to generate the classes into their own project! I can copy them and then change the namespaces on them but I wanted to avoid manual work whenever I change the schema in the db and want to update my model. Thanks

    Read the article

  • Poco SocketReactor Scalability

    - by Genesis
    I have written a proxy server for Linux using Poco but have since been reading up on the various approaches to achieving TCP/IP server scalability. I will need the server to handle persistent connections (not HTTP traffic) with an upper limit of about 250 simultaneous connections. Each connection typically uses about 5-10Kb/sec and the best possible latency in handling traffic is crucial. As it stands I am using the Poco SocketReactor which uses the Reactor model with a select() call at its heart however I have had a read on the C10K problem as well as few other resources and it seems that using this approach might not be the best idea. I believe there is a test implementation in the Poco libs that uses poll() so this could be an option to improve things. Does anyone have any experience using a Poco SocketReactor and do you have any idea how well it might scale for my scenario? If it will not scale well, suggestions on alternatives would be appreciated.

    Read the article

  • Efficiently Determine if EF 4 POCO Already in ObjectSet

    - by Eric J.
    I'm trying EF 4 with POCO's on a small project for the first time. In my Repository implementation, I want to provide a method AddOrUpdate that will add a passed-in POCO to the repository if it's new, else do nothing (as the updated POCO will be saved when SaveChanges is called). My first thought was to do this: public void AddOrUpdate(Poco p) { if (!Ctx.Pocos.Contains<Poco>(p)) { Ctx.Pocos.AddObject(p); } } However that results in a NotSupportedException as documented under Referencing Non-Scalar Variables Not Supported (bonus question: why would that not be supported?) Just removing the Contains part and always calling AddObject results in an InvalidStateException: An object with the same key already exists in the ObjectStateManager. The existing object is in the Unchanged state. An object can only be added to the ObjectStateManager again if it is in the added state. So clearly EF 4 knows somewhere that this is a duplicate based on the key. What's a clean, efficient way for the Repository to update Pocos for either a new or pre-existing object when AddOrUpdate is called so that the subsequent call to SaveChanges() will do the right thing? I did consider carrying an isNew flag on the object itself, but I'm trying to take persistence ignorance as far as practical.

    Read the article

  • Should programmers prefer making wide libraries or thin libraries?

    - by Telastyn
    For classes and functions, it is clear cut: each should do only one thing. For libraries though, this is less clear. If you have a library with collections, it might have multiple collections. It might have useful functions like sorting, which aren't strictly collection based but users would expect. Each of these results in a 'wider' library. On the other side is having a library for the specific collection type and/or with little built-in functionality. If you want a queue, it gives you a queue. If you want to sort that list, then the library lets you do that yourself. What is the best practice here (if any)? I can see arguments for each side.

    Read the article

  • Why do some opensouce libraries lack comments?

    - by entropy
    I don't know if this happens to most Opensource libraries, but many of I know and use (for example OpenSSL, Webkit, ...) they all lack comments, or contain very few comments. Not to mention their very few documents, it is hard to read their source code. We can hardly understand what a member variable means, or what this function does. This seems to be against coding standard practice Why is that? How can people collaborate to these opensource with very few comments?

    Read the article

1 2 3 4 5 6 7 8 9 10 11 12  | Next Page >