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  • C++ auto function return type implementation

    - by aaa
    hello. Is there macro, something like BOOST_AUTO, which would allow to emulate automatic return type deduction of function in C++? I mean something like trailing-return-type, http://en.wikipedia.org/wiki/C%2B%2B0x#Alternative_function_syntax thank you

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  • What is the best way to add attributes to auto-generated entities (using VS2010 and EF4)

    - by Dani
    ASP.NET MVC2 has strong support for using attributes on entities (validation, and extending Html helper class and more). If I generated my Model from the Database using VS2010 EF4 Entity Data Model (edmx and it's cs class), And I want to add attributes on some of the entities. what would be the best practice ? how should I cope with updating the model (adding more fields / tables to the database and merging them into the edmx) - will it keep my attributes or generate a new cs file erasing everything ? (Manual changes to this file may cause unexpected behavior in your application.) (Manual changes to this file will be overwritten if the code is regenerated.)

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  • Hpricot: Stop auto fixing HTML

    - by Imran
    Consider the following example (sample data): doc = Hpricot("<a><table><tr><td>LOREM IPSUM</td></tr></table></a>") it converts it to <a></a><table><tr><td>LOREM IPSUM</td></tr></table> What it actually do is, pull out the table from <a> tag. I think Hpricot tries to repair the HTML. How can I stop Hpricot doing this?

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  • linux bash script: set date/time variable to auto-update (for inclusion in file names)

    - by user1859492
    Essentially, I have a standard format for file naming conventions. It breaks down to this: target_dateUTC_timeUTC_tool So, for instance, if I run tcpdump on a target of 'foo', then the file would be foo_dateUTC_timeUTC_tcpdump. Simple enough, but a pain for everyone to constantly (and consistently) enter... so I've tried to create a bash script which sets system variables like so: FILENAME=$TARGET\_$UTCTIME\_$TOOL Then, I can just call the variable at runtime, like so: tcpdump -w $FILENAME.lpc All of this works like a champ. I've got a menu-driven .sh which gives the user the options of viewing the current variables as well as setting them... file generation is a breeze. Unfortunately, by setting the date/time variable, it is locked to the value at the time of creation (naturally). I set the variable like so: UTCTIME=$(/bin/date --utc +"%Y%m%d_%H%M%Z") What I really need is either a way to create a variable which updates at runtime, or (more likely) another way to skin this cat. While scouring for solutions, I came across a similar issues... like this. But, to be honest, I'm stumped on how to marry the two approaches and create a simple, distributable solution. I can post the entire .sh if anyone cares to review (about 120 lines)

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  • Creating a textarea with auto-resize

    - by DisgruntledGoat
    There was another thread about this, which I've tried. But there is one problem: the textarea doesn't shrink if you delete the content. I can't find any way to shrink it to the correct size - the clientHeight value comes back as the full size of the textarea, not its contents. The code from that page is below. I'd appreciate any help or pointers. function FitToContent(id, maxHeight) { var text = id && id.style ? id : document.getElementById(id); if ( !text ) return; var adjustedHeight = text.clientHeight; if ( !maxHeight || maxHeight > adjustedHeight ) { adjustedHeight = Math.max(text.scrollHeight, adjustedHeight); if ( maxHeight ) adjustedHeight = Math.min(maxHeight, adjustedHeight); if ( adjustedHeight > text.clientHeight ) text.style.height = adjustedHeight + "px"; } } window.onload = function() { document.getElementById("ta").onkeyup = function() { FitToContent( this, 500 ) }; }

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  • Versioning millions of files with distributed SCM

    - by C. Lawrence Wenham
    I'm looking into the feasibility of using off-the-shelf distributed SCMs such as Git or Mercurial to manage millions of XML files. Each file would be a commercial transaction, such as a purchase order, that would be updated perhaps 10 times during the lifecycle of the transaction until it is "done" and changes no more. And by "manage", I mean that the SCM would be used to not just version the files, but also to replicate them to other machines for redundancy and transfer of IP. Lets suppose, for the sake of example, that a goal is to provide good performance if it was handling the volume of orders that Amazon.com claimed to have at its peak in December 2010: about 150,000 orders per minute. We're expecting the system to be distributed over many servers in order to get reasonable performance. We're also planning to use solid-state drives exclusively. There is a reason why we don't want to use an RDBMS for primary storage, but it's a bit beyond the scope of this question. Does anyone have first-hand experience with the performance of distributed SCMs under such a load, and what strategies were used? Open-source preferred, since the final product is to be FOSS, too.

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  • Versioning and Continuous Integration with project settings files

    - by Michael Stephenson
    I came across something which was a bit of a pain in the bottom the other week. Our scenario was that we had implemented a helper style assembly which had some custom configuration implemented through the project settings. I'm sure most of you are familiar with this where you end up with a settings file which is viewable through the C# project file and you can configure some basic settings. The settings are embedded in the assembly during compilation to be part of a DefaultValue attribute. You have the ability to override the settings by adding information to your app.config and if the app.config doesn’t override the settings then the embedded default is used. All normal C# stuff so far… Where our pain started was when we implement Continuous Integration and we wanted to version all of this from our build. What I was finding was that the assembly was versioned fine but the embedded default value was maintaining the non CI build version number. I ended up getting this to work by using a build task to change the version numbers in the following files: App.config Settings.settings Settings.designer.cs I think I probably could have got away with just the settings.designer.cs, but wanted to keep them all consistent incase we had to look at the code on the build server for some reason. I think the reason this was painful was because the settings.designer.cs is only updated through Visual Studio and it writes out the code to this file including the DefaultValue attribute when the project is saved rather than as part of the compilation process. The compile just compiles the already existing C# file. As I said we got it working, and it was a bit of a pain. If anyone has a better solution for this I'd love to hear it

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  • Using versioning for settings in home?

    - by maaartinus
    I planned to use git for the important files in my home directory, so I can revert bad settings or transfer them to another computer as needed. But there's too much chaos there, with each program mixing wildly temporary files, caches, logs, backups, and everything. Finding anything worth saving is hard, and when I've found any settings done by myself, there were mixed with informations specific to the computer (so I could hardly take them to another one) and timestamps (so tracking useful changes is hard). Is anybody doing it or is it just hopeless? How to filter out the garbage?

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  • Best practices in versioning

    - by Gerenuk
    I develop some scripts for data analysis in a small team. For the moment we use SVN, but not in a very structured way. We haven't even looked how to use branches even though we need this functionality. What do you suggest as the best practice to setup the following system: two code bases (core and plugins) versions can be incompatible to previous scripts sometimes individual features are being developed and not yet finished, while other fixes have to be done urgently to the code In the end we don't deliver the code as a package, but rather place the Python scripts in some directory (with version names?). Some other python script which serves as a configuration choses the desired version, sets the path to these libraries and then starts to import the modules. I saw stable releases to be named "trunk" so I did the same. However, no version numbers yet. Core and plugins are different repositories, however we have to match versions for compatibility. Can you suggest some best practices or reference to ease development and reduce chaos? :) Some suggested GIT. I haven't heard about it, but I'm free to change.

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  • Best practices for versioning project after dependency upgrade

    - by shabunc
    Say, my project have dependency N with version 1.0.0. Then something have changed, and I should depend on newer version - let it be 1.0.1. OK, I'm incrementing dependency version, nothing else changes in my code. It looks like I should increment my own projects' version, but how exactly I should increment? Should I increment only third number (so-called revision), or best practices here are more complicated. For example, may be, if we are changing projects' dependency minor value, we should do the same thing in the project itself?

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  • TFS Auto Shelve - New Visual Studio 2010 / TFS 2010 Extension

    - by MikeParks
    We've been working with the Visual Studio 2010 SDK and the TFS 2010 SDK a lot recently to create new Visual Studio Extensions. You can find these extensions in the Visual Studio Gallery. If you're a developer/programmer, you should check it out, they have some pretty cool tools out there. I'd be surprised if you told me you went there and couldn't find any tools that could help you. One of the new extensions Cory and I made is called TFS Auto Shelve. Check out the description and read about it below. If you're interested and you have VS 2010 w/TFS 2010, feel free to try it out and let us know what you think. You can download it here: http://visualstudiogallery.msdn.microsoft.com/en-us/080540cb-e35f-4651-b71c-86c73e4a633d   Here's a description and screenshots of what it does: Automatically shelves the latest version of all pending changes from local TFS workspaces to the TFS Server every "x" number of minutes when solutions are opened.   ·         Purpose o    Created for Team Foundation Server 2010 and Visual Studio 2010 o    This tool is mainly aimed at the Programmer/Developer audience so they can always have the latest copy of their pending changes backed up to the TFS Server while coding ·         Functionality o    Menu options become active and automatic shelving begins when a solution that mapped to a TFS Workspace is opened in Visual Studio o    In Tools > TFS Auto Shelve (Running/NotRunning):  Automatic shelving can be turned on/off o    In Tools > TFS Auto Shelve Now : Shelve all code can be manually triggered o    Each TFS workspace has its own shelveset which is re-used to save the latest version of pending changes o    Shelvesets are named as Base Name + Workspace Name o    Shelveset comment contains item count o    If there are no pending changes, no shelvesets will be created/updated o    If a solution is opened that is not mapped to a TFS Workspace, menu options are disabled since shelving only works for mapped workspaces. ·         Configuration o    In Tools > Options > TFS Auto Shelve Options: Base Name is configurable o    In Tools > Options > TFS Auto Shelve Options: "x" number of minutes is configurable in options ·         Logging o    Custom Visual Studio Activity Logging is implemented. If you run into any errors, please startup Visual Studio with the /log switch, re-create the error, then close Visual Studio. You can browse to “%AppData%\Microsoft\VisualStudio\10.0\ActivityLog.XML” to view the log. Please feel free to inform us of any errors you see and we can work it out via email. ·         Other Helpful Information o    To view shelvesets, open Source Control Explorer, click on File > Source Control > Unshelve Pending Changes o    Workspaces can be modified by opening the Source Control Explorer > Clicking on Workspaces drop down > Click Workspaces… > Click Add / Edit / Removed   Thanks! - Mike

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  • iOS 5: Enable Android Style Auto Correction Feature With A Simple Trick

    - by Gopinath
    Apple generally don’t let its users to play with their devices, but seems to be these days there are few things slipping through the nets. Smart users are able find some hacks and enable new features on iOS devices! Few days ago we heard about the hidden panorama feature built into iOS 5 and it could be enabled on a jail broken device. Here come another hidden feature unearthed by a smart geek in iOS 5 : enable Android style auto-correction on on-screen keyboard. Luckily to enable this feature you don’t need to jailbreak, all you need to do is to take backup of your device, edit a file and restore it back. Boom!  That’s it. To enable auto corrections feature on the on-screen keyboard of iOS 5 follow these steps Download iBackupBot and install it on your machine. It’s works on both Windows and Mac OS X. Backup your iPhone, iPod, or iPad with iTunes – plug in your iOS device and sync it. Open iBackupBot, locate your most recent backup and click on it Scroll down to Library/Preferences/com.apple.keyboard.plist and double-click on it.   Replace everything between the two <dict> with the following <key>KeyboardAutocorrectionLists</key> <string>YES</string> Save the plist file, then hit the "Restore From Backup" button in iBackupbot. Reboot your device to see the auto correction feature in action on your device’s on-screen keyboard. via lifehacker This article titled,iOS 5: Enable Android Style Auto Correction Feature With A Simple Trick, was originally published at Tech Dreams. Grab our rss feed or fan us on Facebook to get updates from us.

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  • How to auto-mount a copied encrypted home

    - by LedZ
    How can I auto-mount and use my encrypted home that I copied to another partition on the same hard disk? I'm running Ubuntu 11.10. My encrypted home is on sda1. There I've 2 users: userA and userB. Another partition is sda3 on which I have some other Data. BTW, sda1 is formatted as EXT4, sda3 is formatted as EXT3. I did the following: I logged out from GUI (Gnome) and changed (using Ctrl+Alt+F1) to the shell. From there I logged in, changed to sudo (using sudo -s) . After then I created a new mountpoint (tmp) under /mnt (mkdir /mnt/tmp) mounted /dev/sda3 on that mountpoint /mnt/tmp (mount /dev/sda3 /mnt/tmp) copied my encrypted /home to /mnt/tmp using rsync (rsync --acvxASXH --progress --stats /home/ /mnt/tmp/). After the “copy-procedure” I looked to my “new home” in /mnt/tmp and there I found the following 3 folders: userA, userB, .ecryptfs My structure for /dev/sda3 mounted on /mnt/tmp looks like the following (userB in ecryptfs I've not listed): -userA ¦ +userB ¦ +.ecryptfs ¦ +userA ¦ + auto-mount ¦ + auto-umount ¦ + Private.mnt ¦ + Private.sig ¦ + wrapped-passphrase ¦ + .wrapped-passphrase.recorded ¦ + .Private + (encrypted file_1) + (encrypted file_2) + (encrypted file_n) Now I would like that this copy of the original home-directory should act with the same behavior as the original home-directory means, that it should be auto-mounted at reboot and give me access to my unencrypted files and after logout all my files should be encrypted again. Any suggestions?

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  • How to manage/control software versions?

    - by Zwie
    I'm facing a problem to create a version control outline for several already existing software parts for my company. Until now no one - expect for the developers - knows that there are different versions, which is the reason for the outline. In fact, I'm supposed to set up the future version control and communicate all this with our management... So, the question is how to create such a outline. Are there principles to follow to make software versioning easier or even a good program to map all versions and there compatibility? And are there generally good approaches to control software versions?

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  • Forked a project, where do my version numbers start?

    - by TheLQ
    I have forked a project and have changed lots of it. This fork isn't just a small feature change here and a buried bug fix there, its a pretty substantial change. Only most of the core code is shared. I forked this project at v2.5.0. For a while I've started versioning my fork at v3.0 . However I'm not sure if this is the right way, mainly because when that project hits v3.0, things get confusing. But I don't want to start over at v1.0 or v0.1 because that implies infancy, instability, and non-refindness of a project. This isn't true, as most of the core code is very refined and stable. I'm really lost on what to do, so I ask here: Whats the standard way to deal with this kind of situation? Do most forks start over again, bump up version numbers, or do something else that I'm not aware of.

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  • How to Disable the Auto-Complete Feature in Outlook 2013

    - by Lori Kaufman
    The Auto-Complete feature in Outlook 2013 automatically fills in names and email addresses for you when entering them in the To or Cc fields. Based on the characters you start to enter, Outlook displays a list of possible choices that match what you’ve entered. You can then either click the desired email address from the list or press Enter to insert the email address in the list. The Auto-Complete feature can save you time if you compose a lot of emails and have a lot of contacts in your address book. However, you do have to be careful when using the feature, so you don’t accidentally select the wrong email address and send an email to the wrong person. If you find the feature irritating and don’t want to use it, you can easily disable it. To disable the Auto-Complete feature, open Outlook and click the FILE tab.    

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  • Loss of privileges when enabeling auto log-in to encrypted home folder

    - by reav
    I use Ubuntu 11.10 with Gnome Shell and have an encrypted home folder. I enabled auto log-in through the system settings/users-admin menu, as I expected it didn't work (because of my encrypted home folder/user I suspect). But now I don't have privileges to mount my eksternal hard-drive, and I can no longer disable the auto log-in function, since the un-lock button in users-admin menu is grayed out. It seems like my users privileges has been degraded. Does any one have an solution to how I disable auto log-in and regain my privileges?

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  • ADVISOR WEBCAST: R12: How to debug Email Center Auto Service Request Creation Failures

    - by user793044
    PRODUCT FAMILY: EBS CRM - Service November 6, 2012 at 11 am ET, 9 am MT, 8 am PT, 4 pm London The primary function of this WebCast is to explain how to debug problems when auto-creating a Service Request from an Inbound Email into Email Center. We see a significant number of issues raised with Support in this area, as the only indication the auto-creation has failed, is the Email routing to the Supervisor Queue for manual processing. Topics will include: Understand Email Center and Auto SR creation process.  Run the debug procedures. Understand the output and check the reasons for SR Creation failure. See the fixes for the most common issues faced. See the results for successful SR creation. Go to Doc ID 1493122.1 to register. Current Schedule and Archived Downloads can be found on Doc ID 740966.1.

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  • How does versioning work when using Boost Serialization for Derived Classes?

    - by Venkata Adusumilli
    When a Client serializes the following data: InternationalStudent student; student.id("Client ID"); student.firstName("Client First Name"); student.country("Client Country"); the Server receives the following: ID = "Client ID" Country = "Client First Name" instead of the following: ID = "Client ID" Country = "Client Country" The only difference between the Server and Client classes is the First Name of the Student. How can we make the Server ignore First Name recieved from the Client and process the Country? Server Side Classes class Student { public: Student(){} virtual ~Student(){} public: std::string id() { return idM; } void id(std::string id) { idM = id; } protected: friend class boost::serialization::access; protected: std::string idM; protected: template<class A> void serialize(A& archive, const unsigned int /*version*/) { archive & BOOST_SERIALIZATION_NVP(idM); } }; class InternationalStudent : public Student { public: InternationalStudent() {} ~InternationalStudent() {} public: std::string country() { return countryM; } void country(std::string country) { countryM = country; } protected: friend class boost::serialization::access; protected: std::string countryM; protected: template<class A> void serialize(A& archive, const unsigned int /*version*/) { archive & BOOST_SERIALIZATION_NVP(boost::serialization::base_object<Student>(*this)); archive & BOOST_SERIALIZATION_NVP(countryM); } }; Client Side Classes class Student { public: Student(){} virtual ~Student(){} public: std::string id() { return idM; } void id(std::string id) { idM = id; } std::string firstName() { return firstNameM; } void firstName(std::string name) { firstNameM = name; } protected: friend class boost::serialization::access; protected: std::string idM; std::string firstNameM; protected: template<class A> void serialize(A& archive, const unsigned int /*version*/) { archive & BOOST_SERIALIZATION_NVP(idM); if (version >=1) { archive & BOOST_SERIALIZATION_NVP(firstNameM); } } }; BOOST_CLASS_VERSION(Student, 1) class InternationalStudent : public Student { public: InternationalStudent() {} ~InternationalStudent() {} public: std::string country() { return countryM; } void country(std::string country) { countryM = country; } protected: friend class boost::serialization::access; protected: std::string countryM; protected: template<class A> void serialize(A& archive, const unsigned int /*version*/) { archive & BOOST_SERIALIZATION_NVP(boost::serialization::base_object<Student>(*this)); archive & BOOST_SERIALIZATION_NVP(countryM); } };

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  • Auto-organized / smart inventory system?

    - by VeXe
    for the past week I've been working on an inventory system with Unity3D. At first I got help from the guys at Design3 but it wasn't too long till we split path, because I really didn't like the way they did their code, it didn't have any smell of OOP whatsoever. I took it further steps ahead - items take more than one slot, advanced placement system (items tries their best to find the best close fit), local mouse system (mouse gets trapped in active bag area), etc. Here's a demo of my work. What we would like to have in our game, is an auto-organizing feature - not auto-sort. We want this feature because our inventory's going to be in 'real-time' - not like in Resident Evil 1,2,3 etc where you would pause the game and do things in your inventory. Now imagine your self in a sticky situation surrounded by zombies, and you don't have bullets, you look around, you see that there are bullets nearby on the ground, so you go for them and try to pick them up, but they don't fit! you look at your inventory and find out that if you reorganize some of the items, it will fit! - now the player - in that situation doesn't have time to reorganize because he's surrounded with zombies and will die if he stops and organizes the inventory to make space (remember inventory in real-time, no pausing) - wouldn't it be nice for that to happen automatically? - Yes! (I believe this has been implemented in some games like Dungeon siege or something, so sure it's doable) take a look at this picture for example: Yes, so if you auto-sort the issue you will get your spaces but it's bad because: 1- Expensive: it doesn't need a whole sort operation to free those spaces, in the first picture, just slide the red item at the bottom to the very left, and you get the same spaces that you got from the auto-sort. 2- It's annoying to the player: "Who the F told you to re-order my stuff?" I'm not asking for "How to write the code" for this, I'm just asking for some guidance, where to look, what algorithms are involved? Is this something related to graphs and shortest path stuff? I hope not cuz I didn't manage to continue my college studies :/ But even if it is, just tell me and I will learn the stuff related. Notice there could be more than just one solution. So I guess the first thing I have to do is figure out if the situation is 'solvable' - if I know how to determine if a situation is solvable or not, then I can 'solve' it. I just need to know the conditions that makes it 'solvable'. And I believe there must be some algorithm/data structure for this. Here's a pic for more than one solution of trying to fit a 1x3 item: The arrows show just one of the solutions, but if you look you will find more than one. This is what I ultimately not auto-sorting but find a solution and applying it. Note that if I spend time on it I will come up with a way to solve it, but it wouldn't be the best way, it's like, holding a car wheel with your feet instead of your hands! XD Or just like trying to solve an issue that requires arrays, but you're not yet aware of their existence! So what is the right approach to this? Hope somebody helps, thanks a lot in advance :)

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  • Can't set breakpoints on an auto-property setter ? Why?

    - by Cristi Diaconescu
    Apparently VS 2008 does not allow setting a breakpoint just on the setter of an auto-property. I.e. if I define an auto-property like this: public int CurrentFramesize { get; protected set; } and then try to set a breakpoint on the setter line, the whole auto-property turns breakpoint-red. This works just fine for normal properties, so any idea why auto-properties get this special (restrictive) treatment? Are they more than just syntactic sugar to normal properties with a hidden backing field?

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  • CSS: auto height on containing div, 100% height on background div inside containing div.

    - by user47831
    The problem, is that I have a content div which stretches its container height-wise (container and content div have auto height). I want the background container, which is a sister div of the content div to stretch to fill the container. The background container contains divs to break the background into chunks. The background and container divs have 100% width, the content container doesn't. HTML: <div id="container"> <div id="content"> Some long content here .. </div> <div id="backgroundContainer"> <div id="someDivToShowABackground"/> <div id="someDivToShowAnotherBackground"/> </div> </div> CSS: #container { height:auto; width:100%; } #content { height: auto; width:500px; margin-left:auto; margin-right:auto; } #backgroundContainer { height:100%;??? I want this to be the same height as container, but 100% makes it the height of the viewport. }`

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