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  • How to organize makefiles / solutions etc. in multiplatform projects?

    - by Michal Czardybon
    I have a project which can be compiled with Visual Studio, GCC and with some embedded compilers. Sources are shared, but each platform requires separate makefiles, project files, solutions etc. There are two ways I can organize them: Intermixed in a single hierarchy of folders With separate folders for platform-dependent files The first solution creates some confusion about which file belongs to which platform, but the second causes some repetition of the folders structure (some compilers require each project to have a separate folder). Which do you think is better?

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  • What are the Options for Storing Hierarchical Data in a Relational Database?

    - by orangepips
    Good Overviews One more Nested Intervals vs. Adjacency List comparison: the best comparison of Adjacency List, Materialized Path, Nested Set and Nested Interval I've found. Models for hierarchical data: slides with good explanations of tradeoffs and example usage Representing hierarchies in MySQL: very good overview of Nested Set in particular Hierarchical data in RDBMSs: most comprehensive and well organized set of links I've seen, but not much in the way on explanation Options Ones I am aware of and general features: Adjacency List: Columns: ID, ParentID Easy to implement. Cheap node moves, inserts, and deletes. Expensive to find level (can store as a computed column), ancestry & descendants (Bridge Hierarchy combined with level column can solve), path (Lineage Column can solve). Use Common Table Expressions in those databases that support them to traverse. Nested Set (a.k.a Modified Preorder Tree Traversal) First described by Joe Celko - covered in depth in his book Trees and Hierarchies in SQL for Smarties Columns: Left, Right Cheap level, ancestry, descendants Compared to Adjacency List, moves, inserts, deletes more expensive. Requires a specific sort order (e.g. created). So sorting all descendants in a different order requires additional work. Nested Intervals Combination of Nested Sets and Materialized Path where left/right columns are floating point decimals instead of integers and encode the path information. Bridge Table (a.k.a. Closure Table: some good ideas about how to use triggers for maintaining this approach) Columns: ancestor, descendant Stands apart from table it describes. Can include some nodes in more than one hierarchy. Cheap ancestry and descendants (albeit not in what order) For complete knowledge of a hierarchy needs to be combined with another option. Flat Table A modification of the Adjacency List that adds a Level and Rank (e.g. ordering) column to each record. Expensive move and delete Cheap ancestry and descendants Good Use: threaded discussion - forums / blog comments Lineage Column (a.k.a. Materialized Path, Path Enumeration) Column: lineage (e.g. /parent/child/grandchild/etc...) Limit to how deep the hierarchy can be. Descendants cheap (e.g. LEFT(lineage, #) = '/enumerated/path') Ancestry tricky (database specific queries) Database Specific Notes MySQL Use session variables for Adjacency List Oracle Use CONNECT BY to traverse Adjacency Lists PostgreSQL ltree datatype for Materialized Path SQL Server General summary 2008 offers HierarchyId data type appears to help with Lineage Column approach and expand the depth that can be represented.

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  • Image panning in sencha touch 2

    - by MattD
    I'm trying to have show a large image that the user can pan around (so scroll vertically & horizontally). But I can't get the image to scroll. This is what I have: Ext.define('myapp.view.image.Floorplan', { extend: 'Ext.Container', requires: 'Ext.Img', xtype: 'floorplan', config: { title: 'Floorplan', iconCls: 'locate', items: [ { xtype: 'image', scrollable: true, src: './resources/images/floorplan.png', height: 1570, width: 1047 } ] } }); How can I make the image scrollable? Thanks Matt

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  • CDN with South America peering points / edge nodes

    - by Bill
    Hello, Does anyone one know of a CDN (Content Delivery Network) with true South American peering points or edge nodes? This seems to be quite rare. It seems that most CDNs serve Central and South America from Texas. However, our application requires low latency in Brazil, so this is not a good solution for us. We would like to avoid having to set up servers in South America just for this piece of the application, but may end up doing that. Thanks, Bill

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  • How to convert row data into columns in SQL

    - by iHeartDucks
    Hi, I have looked into pivot but I think it requires an aggregate function which I do not need (I think). The result of my query is this Name Property Name PropertyValue ---------- ---------- ---------- lorem Work Phone 000.111.2020 ipsum Email [email protected] To Name Work Phone Email ---------- ---------- ---------- lorem 000.111.2020 [email protected] ipsum 001.101.2010 [email protected] I don't think I should use pivot here because I don't need to aggregate anything, I just want the row data to become a column.

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  • How do I implement graphs and graph algorithms in a functional programming language?

    - by brad
    Basically, I know how to create graph data structures and use Dijkstra's algorithm in programming languages where side effects are allowed. Typically, graph algorithms use a structure to mark certain nodes as 'visited', but this has side effects, which I'm trying to avoid. I can think of one way to implement this in a functional language, but it basically requires passing around large amounts of state to different functions, and I'm wondering if there is a more space-efficient solution.

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  • which should be drawn first , class or sequence diagram?

    - by m0j1
    hi , I've had this discussion with my professor at college about UML diagrams . hi believes that sequence diagrams should be drawn before getting to class diagrams . but I think the opposite . I think after finishing the usecase diagram , the next diagram should be class diagram and after that we should get to sequence diagram . Rational rose requires us to use the classes in sequence diagram, which are already in class diagram . can anyone help me with this? thanks

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  • MSDN Subscription Expression Studio 4

    - by pjk
    I logged into my MSDN subscription (Premium) today to download the new expression studio, and I noticed that unlike Expression 3, it requires you to enter a key, and they only provide 1. Previously I installed Expression 3 on 2 computer, my home and my work computer. So my question is, is this no longer allowed? or is it a key that can be used multiple times?

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  • Upgrading PHP 5.1 to 5.3 on Linux Server

    - by nicorellius
    I trying to find the best way to upgrade from PHP 5.1 to 5.3. The CRM software I am running on this server requires this upgrade or else I probably wouldn't even perform it, because it seems like it's going to be perhaps trickier than I hoped it would be. Being still new to the programming world, these routine upgrades are still worrisome to me. I am running apache 2.2.6 (Fedora), PHP 5.1.6 and MySQL 5.0.27 on this server.

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  • Mocking digest authentication in RestEasy

    - by Ralph
    I am using RestEasy to develop a REST server and using the mock dispatcher (org.jboss.resteasy.mockMockDispatcherFactory) for testing the service in my unit tests. My service requires digest authentication and I would to make that part of my testing. Each of my services accepts a @Context SecurityContext securityContext parameter. Is there any way is inject a fake SecurityContext in the dispatcher so that I can test that my security methods function properly?

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  • Can you authenticate Facebook Graph entirely from command line with Python?

    - by Sebastian
    I'm writing a (tabbed) application for Facebook that requires a background process to run on a server and, periodically, upload images to an album on this application's page. What I'm trying to do is create a script that will: a) authenticate me with the program b) upload an image to a specific album All of this entirely from the command line and completely with the new Graph API. My problem right now is trying to locate the documentation that will allow me to get a token without a pop-up window of sorts. Thoughts?

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  • dynamic memory allocation problem

    - by wantobegeek
    i am working on a program that requires me to make use of 4 matrices sized [1000][1000]. i have created them using malloc().But when I try running the program ..it just crashes and the memory usage shoots upto 2.5 GB.Pls suggest any solution as soon as possible.I wud be grateful..

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  • nginx and trailing slashes on $document_root?

    - by shadowhand
    I use the following configuration for nginx: http://gist.github.com/340956 However, this configuration causes a No input file specified error with PHP. The only way I have been able to solve it is by altering this line: fastcgi_param SCRIPT_FILENAME $document_root/$fastcgi_script_name; Note the "/" between $document_root and $fastcgi_script_name. I was informed that this is the wrong configuration but no one has been able to tell me exactly why my configuration requires this extra slash. How can I get rid of that extra slash?

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  • Simulate Offline Mode for HTML5 Cache Testing

    - by Kevin Sylvestre
    I have an HTML5 application that requires offline support. I am using a local Apache server for the application, and am trying to figure out what the best way is to simulate offline mode (currently, in Firefox I disable my Air-Port to simulate offline mode, but this is a pain). Any suggestions? I am open to using other browsers if a method exists that doesn't require turning off my Internet.

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  • Ready to use TSP library

    - by Max
    Hi, I'm currently doing a project that requires some fast TSP solving (about 50-100 nodes in 2 seconds). There are a lots of approximation algorithms out there, but I don't have time nor will to analyze them and code them myself. Are there any free libraries that can solve TSP problem (approximation will do too)? Something like sortedNodes = solveTspPrettyPlease(nodes, 2sec) would be just great. Thanks in advance.

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  • how to userinput without typing to a batch file

    - by Blood hound
    I am trying to run a batch file which requires user input "y/n" to do further action , I want to call this batch file for automation , as during automation argument yes or no need to be passed without user intervention , any idea how to achieve it ? cmd /c setup.bat now if setup.bat is run " yes or no " need to be selected to get the desired result as now this setup.bat is called during automation, is there is anyway to pass "yes" parameter as an input to setup.bat

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  • JSP application scope objects in Java library

    - by FrontierPsycho
    I am working on a preexisting web application built with JSP, which uses an external Java library. I want to make some JavaBeans that were instantiated with jsp:useBean tags available to the Java code. What would be a good practice to do that? I suppose I can pass the objects in question to every function call that requires them, but I'd like to avoid that.

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  • Defer Eclipse Treeviewer loading by DeferredTreeContentManager

    - by qichuan
    I understand there is an approach to defer TreeViewer loading by using DeferredTreeContentManager, learnt from this useful tutorial. However, this mechanism requires the model to implement IDeferredWorkbenchAdapter interface, which introduces problem to my legacy immutable model classes. Is it possible to use DeferredTreeContentManager without having model implementing IDeferredWorkbenchAdapter interface?

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  • Recommendtations for a simple name registrar

    - by ripper234
    I'm currently registering my domains through GoDaddy. Does the registrar matter? Any recommendations for registrars you're especially happy with? (See this very similar question, that requires API support. I need no such support, hence this question is more generic).

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  • Can we host a Workflow Service as a Windows Service?

    - by arsayed
    I am working on a logging application that requires me to have a Workflow that is exposed as a Service (Workflow Service). We want to host it as a Windows Service (don't want to host workflow service as .svc file in IIS). Another reason for having it as windows service is to be able to communicate with the service through the Named pipes. Can we expose a Workflow Service through Named Pipes without hosting it in IIS?

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  • What is the most efficient procedure for implementing a sortable ajax list on the backend?

    - by HenryL
    The most common method is to assign a sequential order field for each item in the list and do an update that maintains the sequence with every ajax sort operation. Unfortunately, this requires an update to each item of the list every time someone sorts. This is fine for small lists, but what's the best way to implement sorting for larger lists that are constantly updated? I am looking for something that minimizes DB IO.

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  • doctrine with mamp?

    - by ajsie
    i want to use doctrine with my mamp. but according to doctrine's documentation it requires php version 5.2.3 or greater. i've checked my current version in mamp with phpinfo(), it says i've got version 5.2.11. how can i get mamp to work with doctrine? i have never upgraded php engine manually. thanks!

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