Search Results

Search found 22257 results on 891 pages for 'let binding'.

Page 304/891 | < Previous Page | 300 301 302 303 304 305 306 307 308 309 310 311  | Next Page >

• How to elegantly work with a lot of print functions?

  - by user1824372

  I'm working on a Python project that is executed on a terminal (or console) for which I am planning to implement a GUI. I did not major in CS so I really have no idea how to effectively design a terminal GUI such that: the user interface looks good in GUI, it is directed to a certain widget, let's say, a text label, or a bottom bar, or a hide-able frame. Do you have any suggestions? Currently, I am using the print function to provide essential information on STDOUT during execution, so a lot of print calls are distributed here and there in the code. I'm thinking of using macro-like variables such as 'FILE_NOT_EXISTS_MESSAGE' for printing, and all of them and their values would be defined in one file. Is that a standard way to do this? Should I introduce a logging system? In summary, I'm looking for a pattern for handling console output that is effective and adaptable.

  Read the article

• How to Automatically run two commands after login?

  - by Covi

  I have these two commands that I need to manually run every time after login: autossh -M 2000 -N -f -q -D 127.0.0.1:7070 [email protected] and sudo mkdir /media/C sudo mount /dev/sda2 /media/C I'd like to make them automatically run every time I boot and login to my computer. I'm currently using 10.04LTS. BTW, I only vaguely know what init.d or runlevel mean. But I still prefer to know a command-line based way to achieve this, not a fancy GUI way. Also, the autossh will only succeed after Ubuntu automatically detect and connect to my network, so should we let it retry infinitely until successfully executed? Thank you!

  Read the article

• How to create and maintain patch on Debian package?

  - by ???

  I want to patch on Trac package. I know how to patch and rebuild the package, but there are some things I don't understand very well. My patch is something dangerous and not likely to commit back to the community. So, let me just say, it's a very private patch. But, I want my patch keep working when the Ubuntu packages upgrade. (Should I apt-get source trac and move my patch to the new version of source directory each time the Trac upgrades?) I see there is a patch/ directory (many using quilt I guess) in debian/, but I don't know how to use it? Will debuild automatic apply all patches in the patch/ directory? And what about dpkg-buildpackage? Is there some environ variables to control the selection of patches to apply?

  Read the article

• Is it a good idea for exams to be done on a computer?

  - by vemv

  In some colleges students are let to use an IDE and Internet and in mine you have to write down your solution in paper. As far as I know, it's pretty much impossible to make a correct non-trivial program on the first try. I'd be fine with no using computers if my teachers assessed my approach instead my code -literally-... that's not the case unfortunately. Which ones are more usual, 'written' or 'coded' exams? And which way is the most adequate? Edit - question title changed (it used to be Should students have the right to do exams using a computer?)

  Read the article

• Ubutnu 12.04 mdadm inactive

  - by user32274

  For a while now, my RAID 5 has ceased to work. Everytime I tried "madm --detail /dev/md127", its states all the drive and drive info, but that two of the drives have been removed. After some restarts, doing the same thing, i am getting /dev/md127 does not appear to be active. When I go into DiskUtil, I can see all 6 Hard Drives healthy and present, and i can see the Raid 5 at the bottom under Multi-disk Devices. However, the Raid says 0.0kb, and is not active. Please help and let me know how to proceed from here. I would really like to avoid rebuilding the RAID, especially because all 6 drives seem to be healthy and present. Thanks so much.

  Read the article

• I need advice on how to debug a cluster

  - by alcor

  I'm the only developer of a complex critical software system, written in Visual C++ 2005. It's deployed on a classical Microsoft cluster scenario (active/passive), that has Windows Server 2003 R2. If a server A goes down, the other one (B) starts and take the ownership of its duties. You have to know that: both servers have the same Microsoft patches/fixes, same hardware, same everything. both servers use the same memory storage (a RAID-6 through fiber channel). this software has a main module who launch the peripheral modules. if a peripheral module crashes, the main module restarts it. When I switch the application in one of the two servers (let's say the B server) two of the peripheral modules of the main applications just started to crash apparently without reason about 2 seconds after the start of the peripheral module. What could I do to analyze/inspect/resolve this weird situation?

  Read the article

• Should I keep separate client codebases and databases for a software-as-a-service application?

  - by John

  My question is about the architecture of my application. I have a Rails application where companies can administrate all things related to their clients. Companies would buy a subscription and their users can access the application online. Hopefully I will get multiple companies subscribing to my application/service. What should I do with my code and database? Seperate app code base and database per company One app code base but seperate database per company One app code base and one database The decision involves security (e.g. a user from company X should not see any data from company Y) performance (let's suppose it becomes successful, it should have a good performance) and scalability (again, if successful, it should have a good performance but also easy for me to handle all the companies, code changes, etc). For the sake of maintainability, I tend to opt for the one code base, but for the database I really don't know. What do you think is the best option?

  Read the article

• Deleting a game object

  - by Balls

  I tried doing this but it cause an access violation. void GameObjectFactory::Update() { for( std::list<GameObject*>::iterator it=gameObjectList.begin() ..... (*it)->Update(); } void Bomb::Update() { if( time == 2.0f ) { gameObjectFactory->Remove( this ); } } void GameObjectFactory::Remove( ... ) { gameObjectList.remove( ... ); } My thoughts would be to mark the object to be dead then let the factory handle it the on next frame for deletion. Is it the best and fastest way? What do you think?

  Read the article

• How do I build a matrix to translate one set of points to another?

  - by dotminic

  I've got 3 points in space that define a triangle. I've also got a vertex buffer made up of three vertices, that also represent a triangle that I will refer to as a "model". How can I can I find the matrix M that will transform vertex in my buffer to those 3 points in space ? For example, let's say my three points A, B, C are at locations: A.x = 10, A.y = 16, A.z = 8 B.x = 12, B.y = 11, B.z = 1 C.x = 19, C.y = 12, C.z = 3 given these coordinates how can I build a matrix that will translate and rotate my model such that both triangles have the exact same world space ? That is, I want the first vertex in my triangle model to have the same coordinates as A, the second to have the same coordinates as B, and same goes for C. nb: I'm using instanced rendering so I can't just give each vertex the same position as my 3 points. I have a set of three points defining a triangle, and only three vertices in my vertex buffer.

  Read the article

• Is it better to use preprocessor directive or if(constant) statement?

  - by MByD

  Let's say we have a codebase that is used for many different costumer, and we have some code in it that relevant only for costumers of type X. Is it better to use preprocessor directives to include this code only in costumer of type X, or to use if statement, to be more clear: // some code #if TYPE_X_COSTUMER = 1 // do some things #endif // rest of the code or if(TYPE_X_COSTUMER) { // do some things } The arguments I can think about are: Preprocessor directive results in smaller code footprint and less branches (on non-optimizing compilers) If statements results with code that always compiles, e.g. if someone will make a mistake that will harm the irrelevant code for the project he works on, the error will still appear, and he will not corrupt the code base. Otherwise he will not be aware of the corruption. I was always been told to prefer the usage of the processor over the usage of the preprocessor (If this is an argument at all...) What is preferable - when talking about a code base for many different costumers?

  Read the article

• HTG Explains: What’s the Difference Between the Windows 7 HomeGroups and XP-style Networking?

  - by Jason Fitzpatrick

  Windows 7 rocks a new method of file and print sharing that’s a departure from the frustrating file and print sharing found in earlier versions of Windows. What is it and how can you benefit from it? Read on as we explain. HomeGroups are a new edition to the Windows ecosystem as of Windows 7. They’re intended to (and succeed at) greatly reducing the frustration experienced by users who want to easily share files between computers as well as share printers with the entire network. Let’s take a look at the state of home networking and how it has evolved.Internet Explorer 9 Released: Here’s What You Need To KnowHTG Explains: How Does Email Work?How To Make a Youtube Video Into an Animated GIF

  Read the article

• Is there a way to show icons on a git repo folder like tortoiseGit?

  - by shengy

  Is there a way which could let me know all the file status by just looking at the folder view, like what TortoiseHg, TortoiseSVN, TortoiseGit did on windows? Now my git repo folder looks the same as other folders. If I want to view file status I have to type git status in the command line. I want some icons which could inform me the file/folder status at my first glance on the folder view. I'm using Ubuntu 12.04 EDIT I googled it, and what I'm asking for is called the overlay icon.

  Read the article

• Is it possible to boot Ubuntu using the Windows bootloader?

  - by badp

  As noted by many people, Windows 8's UEFI requirements might will won't get in the way of installing Linux (or whatever), as the replacement bootloader will also need to be signed somehow. Some systems All systems will let you disable the signature requirement, but the feature might be hidden to disable or you might not be willing to give up on the benefits of a secure bootloader. Is it necessary to replace the bootloader in the first place? To keep ourselves to software that's gone golden, how can I install Ubuntu 11.04 using Windows 7's own bootloader?

  Read the article

• What Design Pattern is separating transform converters

  - by RevMoon

  For converting a Java object model into XML I am using the following design: For different types of objects (e.g. primitive types, collections, null, etc.) I define each its own converter, which acts appropriate with respect to the given type. This way it can easily extended without adding code to a huge if-else-then construct. The converters are chosen by a method which tests whether the object is convertable at all and by using a priority ordering. The priority ordering is important so let's say a List is not converted by the POJO converter, even though it is convertable as such it would be more appropriate to use the collection converter. What design pattern is that? I can only think of a similarity to the command pattern.

  Read the article

• One controller per page or many pages in one controller?

  - by Rushino

  I just wanted some advice regarding the MVC way of doing things. I am using codeigniter and I was wondering if it's better to have one controller per page for a website or to have one controller for all the pages? Let's say I have a simple website where you can visit the homepage, login, create an account and contact the admin. Would it be better to have these controllers: frontend(index), login, account, contact OR having one controller called frontend or whatever with the actions such login, createAccount, contact? When do you know if its better to use one controller in a situation?

  Read the article

• Should students have the right to do exams using a computer?

  - by vemv

  In some colleges students are let to use an IDE and Internet and in mine you have to write down your solution in paper. As far as I know, it's pretty much impossible to make a correct non-trivial program on the first try. I'd be fine with no using computers if my teachers assessed my approach instead my code -literally-... that's not the case unfortunately. Which ones are more usual, 'written' or 'coded' exams? And which way is the most adequate?

  Read the article

• Could multiple uses of the same keywords in image alt attributes hurt SEO?

  - by saratogahiker

  Let's say on an e-commerce site that sells unique pens, on a particular pen's product page, the image of the pen has an alt attribute value of "unique red-striped pen"... and another product has "unique blue-spotted pen", etc... The keywords across all products being "unique" and "pen", which would also be helpful when it comes to SEO. However, if the person just goes to the general "unique pens" category page and sees a list of thumbnail images, each with the words "unique" and "pen" in the alt attribute, would that potentially have a negative impact with regards to SEO by having the same keywords too many times?

  Read the article

• HTG Explains: Do You Really Need to Defrag Your PC?

  - by The Geek

  Ask any PC tech person how to make your computer faster, and almost every one of them will tell you to defrag your PC. But do you really need to manually trigger a defrag these days? The quick answer: You don’t need to manually defragment a modern operating system. The longer answer: let’s go through a couple scenarios and explain so you can understand why you probably don’t need to defrag. HTG Explains: Do You Really Need to Defrag Your PC? Use Amazon’s Barcode Scanner to Easily Buy Anything from Your Phone How To Migrate Windows 7 to a Solid State Drive

  Read the article

• Checking a record is due based on the 'occuring' field

  - by andy

  I have records that have dates against them and an occurring field that contains none,yearly and monthly id status note date last_updated occurring 1 open --- 01/01/2011 01/02/2010 yearly 2 open --- 05/05/2011 03/05/2011 monthly 3 open --- 06/06/2011 05/06/2011 none Now I need to be able to check if a record is due (the date set has passed) which works perfect if occurring is set to none but I'm unsure of how to approach it when it's set to yearly or monthly (IE: This day in the year/month has passed) So with the above records, if I had a method on the record called due? providing the status is 'open' it needs to return true every year when it's passed that date if it's not been updated within the year yet. I apologise if this is confusing but it's melting my brain just trying to think of it, let alone put it into words.

  Read the article

• Where is the best place to start projects and attract developers?

  - by user49557

  I want to develop software for Linux or cross-platform. I want to work with other open-source and non-profit developers. I want a place where Ubuntu or other developers come to start open-source or commercial projects, and we can join the projects or start our own projects. I know there are social coding sites, but where can I start the project, and invite people or let people join? Then we can submit software to sourceforge.net. I know we can start projects at sourceforge.net, but is there anything more dedicated for Ubuntu developers, especially for Ubuntu and for the Ubuntu Software Center? Would you recommend Launchpad, sourceforge.net, github, gitorous or others?

  Read the article

• Making Separate Assemblies For Different Types Of Tests For The Same Component?

  - by sooprise

  I was told by a few members here that splitting up my unit tests into different assemblies for different components is the best way to structure unit tests. Now, I have a few questions about that idea. What are the advantages of this? Organization, and isolation of errors? Let's say I have a component named "calculator", and I create an assembly for the unit tests on "calculator". Would I create a separate assembly for the integration tests I want to run on "calculator"? Or is the definition of an integration test a test across multiple components, like "calculator" and whatever else, which would require a separate assembly to test both of them together? In that case, would I have one assembly to do all of the integration testing for every component combination?

  Read the article

• Rotate an object given only by its points?

  - by d33tah

  I was recently writing a simple 3D maze FPP game. Once I was done fiddling with planes in OpenGL, I wanted to add support for importing Blender objects. The approach I used was triangulization of the object, then using Three.js to export the points to plaintext and then parsing the result JSON in my app. The example file can be seen here: https://github.com/d33tah/tinyfpp/blob/master/Data/Models/cross.txt The numbers represent x,y,z,u,v of a single vertex, which combined in three make a triangle. Then I rendered such an object triangle-by-triangle and played with it. I could move it back and forth and sideways, but I still have no idea how to rotate it by some axis. Let's say I'd like to rotate all the points by five degrees to the left, how would a code doing it look like?

  Read the article

• How do I get the name of a package, modify and install it?

  - by Ken

  I'm not very familiar with Ubuntu or Linux, but I'm a programmer, and some people told me that you can just go ahead and modify your system. So my question is, how do you go on about that? For instance, If I'm interested in modifying the behavior of the button or the desktop icons, or whatever it is: How do I get the source code? I guess I need the package name and download it. But how can I get the package name? Let's say I want the button package, where do I look to get the package name? is there a list on a website or a help file? Once I modify it, how can I replace the original with the new one? P.S. I had some troubles finding the right tags, feel free to edit them

  Read the article

• Relaunch of wwwCoder.com

  It's been years since I've been active in the community, but I'm back with a newly redesigned wwwCoder.com. The site was taken over by spammers, and was essientially a ghost town, but I reworked it to bring a technology topics aggregator. The site provides full text searching on the popular podcasts, vidcasts, and blogs. Hit the home page to get a quick summary of what's going on with Microsoft developers. Let me know what you think. Patrick Santry wwwCoder.com...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

  Read the article

• Which language unifies OOP, both RPC call and Message passing a la Smalltalk, and more ...

  - by user310291

  I hate software editors who pretend to know better what you need and choose for you. Java and c# pretend multiple inheritance is dangerous. That I agree I often use Interface but in some cases I may need multiple inheritance : why not let me choose ? Also today you have to choose between RPC call à la Java and Message passing à la Objective C. Again can't I choose when one or the other is more practical ? So is there any language on earth which will free me from what I want to choose to use dependending on MY context and MY own judgement ?

  Read the article

< Previous Page | 300 301 302 303 304 305 306 307 308 309 310 311  | Next Page >