Search Results

Search found 11972 results on 479 pages for 'writing'.

Page 113/479 | < Previous Page | 109 110 111 112 113 114 115 116 117 118 119 120  | Next Page >

• Is a finite state machine an appropriate solution for this situation?

  - by user1936

  I was writing some test code as an example where I had a washing machine class. It has a door state that should be open or closed, and also a running state, either on or off. I want to prevent the running state from changing from 'off' to 'on' when the door is 'open', and also prevent the door from being set to 'open' while the machine is 'on'. I have this functionality rigged up with a bunch of if statements. It feels inelegant and it could quickly turn into spaghetti code if I want to add another state that puts additional conditions on the changes of other states. I wonder, is a finite state machine a solution for this situation? Would it simplify adding states and defining valid transitions?

  Read the article

• Adding unit tests to a legacy, plain C project

  - by Groo

  The title says it all. My company is reusing a legacy firmware project for a microcontroller device, written completely in plain C. There are parts which are obviously wrong and need changing, and coming from a C#/TDD background I don't like the idea of randomly refactoring stuff with no tests to assure us that functionality remains unchanged. Also, I've seen that hard to find bugs were introduced in many occasions through slightest changes (which is something which I believe would be fixed if regression testing was used). A lot of care needs to be taken to avoid these mistakes: it's hard to track a bunch of globals around the code. To summarize: How do you add unit tests to existing tightly coupled code before refactoring? What tools do you recommend? (less important, but still nice to know) I am not directly involved in writing this code (my responsibility is an app which will interact with the device in various ways), but it would be bad if good programming principles were left behind if there was a chance they could be used.

  Read the article

• Is there now any way to convert mp3 files to m4a or aac 192kbit?

  - by piedro

  Since about two years now I am trying to find a way to convert high quality mp3 files to m4a or aac files with a fixed bitrate 192k. Please don't suggest using another format - i thought this through as far as it goes. The problem here is: ffmpeg obvioulsy can't convert to a higher bitrate than 152k. Even when it says it does so the resulting files still have 152k instead of 192k. ffmpeg also has/had a bug not writing the bitrate into the audio file tags which means when testing you have to calculate the bitrate manually by dividing the filesize by the length of the audio in seconds (resulting in 152k - see above) choosing faac as converter gets me the same results other programs don't work reliably (see this thread Howto convert audio files to *.m4a? I know that this is not an original new problem but I am wondering if there is still no way to convert with ubuntu/kubuntu 12.04 after a lot time passed and I can't find some of the bug issues mentioned in the other thread anymore. So: Is there a solution after all?

  Read the article

• migrating product and team from startup race to quality development

  - by thevikas

  This is year 3 and product is selling good enough. Now we need to enforce good software development practices. The goal is to monitor incoming bug reports and reduce them, allow never ending features and get ready for scaling 10x. The phrases "test-driven-development" and "continuous-integration" are not even understood by the team cause they were all in the first 2 year product race. Tech team size is 5. The question is how to sell/convince team and management about TDD/unit testing/coding standards/documentation - with economics. train the team to do more than just feature coding and start writing test units along - which looks like more work, means needs more time! how to plan for creating units for all backlog production code

  Read the article

• The Enterprise Architect (EA) diary - day 22 (from business processes to implemented applications)

  - by nattYGUR

  After spending time on keeping our repository up to date (add new ETRM application and related data flows as well as changing databases to DB clusters), collecting more data for the root cause analysis and spending time for writing proposal to creating new software infrastructure team ( that will help us to clean the table from a pile of problems that just keep on growing due to BAU control over IT dev team resources). I spend time to adapt our EA tool to support a diagram flow from high level business processes to implementation of new applications that will better support the business process. http://www.theeagroup.net/ea/Default.aspx?tabid=1&newsType=ArticleView&articleId=195

  Read the article

• Handling SMS/email convergence: how does a good business app do it?

  - by Tim Cooper

  I'm writing a school administration software package, but it strikes me that many developers will face this same issue: when communicating with users, should you use email or SMS or both, and should you treat them as fundamentally equivalent channels such that any message can get sent using any media, (with long and short forms of the message template obviously) or should different business functions be specifically tailored to each of the 3? This question got kicked off "StackOverflow" for being overly general, so I'm hoping it's not too general for this site - the answers will no doubt be subjective but "you don't need to write a whole book to answer the question". I'm particularly interested in people who have direct experience of having written comparable business applications. Sub-questions: Do I treat SMS as "moderately secure" and email as less secure? (I'm thinking about booking tokens for parent/teacher nights, permission slips for excursions, absence explanation notes - so high security is not a requirement for us, although medium security is) Is it annoying for users to receive the same message on multiple channels? Should we have a unified framework that reports on delivery or lack thereof of emails and SMS's?

  Read the article

• Problem with .sh file

  - by omgzor

  I don't have any experience writing .sh files. I want to run the pvm2raw utility of this app from the Volume Library. I get the following error when running build.sh in Ubuntu 10.10. build.sh is as follows: # make command set mmfile=V3Makefile set make="make -f $mmfile" set rule=$1 if ($rule == "") set rule="all" // line 16 if ($rule == "deps") then if ($HOSTTYPE == "iris4d") $make MAKEDEPEND="CC -M" OPTS="-DHAVE_CONFIG_H -DVIEWER_HAVE_DCMTK" TARGET=IRIX depend if ($HOSTTYPE == "i386") $make MAKEDEPEND="c++ -M -I/usr/X11R6/include" OPTS="-DHAVE_CONFIG_H -DVIEWER_HAVE_DCMTK" TARGET=LINUX depend What's wrong there? Edit: I followed kniwor's advice and installed csh. Now I get the following error: How can I solve this Undefined variable problem?

  Read the article

• C programming in 2011

  - by Duncan Bayne

  Many moons ago I cut C code for a living, primarily while maintaining a POP3 server that supported a wide range of OSs (Linux, *BSD, HPUX, VMS ...). I'm planning to polish the rust off my C skills and learn a bit about language implementation by coding a simple FORTH in C. But I'm wondering how (or whether?) have things changed in the C world since 2000. When I think C, I think ... comp.lang.c ANSI C wherever possible (but C89 as C99 isn't that widely supported) gcc -Wall -ansi -pedantic in lieu of static analysis tools Emacs Ctags Autoconf + make (and see point 2 for VMS, HP-UX etc. goodness) Can anyone who's been writing in C for the past eleven years let me know what (if anything ;-) ) has changed over the years? (In other news, holy crap, I've been doing this for more than a decade).

  Read the article

• Problem when scaling game screen in Libgdx

  - by Nicolas Martel

  Currently, I'm able to scale the screen by applying this bit of code onto an OrthographicCamera Camera.setToOrtho(true, Gdx.graphics.getWidth() / 2, Gdx.graphics.getHeight() / 2); But something quite strange is happening with this solution, take a look at this picture of my game below Seems fine right? But upon further investigation, many components are rendered off by one pixels, and the tiles all are. Take a closer look I circled a couple of the errors. Note that the shadow of the warrior I circled appears fine for the other warriors. Also keep in mind that everything is rendered at pixel-perfect precision when I disable the scaling. I actually thought of a possible source for the problem as I'm writing this but I decided to still post this because I would assume somebody else might run into the same issue.

  Read the article

• How to detect whether an Object came to sleep at a specific position?

  - by Nils Riedemann

  I'm currently writing a small game with box2dweb and I need some direction for this: I'm throwing a Box and have to hit a specific place and trigger an event when the object that's been thrown isn't moving anymore, "fell asleep" so to say. What's the proper way / best practice for this? I'm currently thinking of asking the b2World whether an Object is within a specific AABB and then wait a few seconds, check if it's still there and then trigger the event. But this seems to me like the roundabout way and the object might still be moving inside of that AABB and eventually even drop out of the AABB.

  Read the article

• Shader inputs in a general purpouse engine

  - by dreta

  I'm not familiar with SDKs like Unity or UDK that much, so i can't check this off hand. Do general purpouse engines allow users to create custom uniform variables? The way i see it, and the way i have implemented it in an engine i'm writing to learn 3D, is that there is a "set" of uniforms provided by the engine and if you want to write a custom shader then you utilize uniforms you need to create a wanted effect. Now, the thing is, first of all i'm not an artist, second of all, i didn't have a chance to create complex scenes yet. So my question is, is it common practice to define variables that the engine provides and only allow the user to work with what they're given? Allowing users to add custom programs and use them where they want is not hard, but i have issues imagining how you'd go about doing the same for uniforms.

  Read the article

• Seeking questions about creating Microsoft Live Labs Pivot collections

  - by John Conwell

  I've spent the past 3 weeks working a lot with Pivot from Microsoft Live Labs (http://getpivot.com/).  Pivot is a tool that allows you to visually explore data. Its an interesting take on visual data mining. Anyway, I've been writing a lot of code that creates a hierarchy of Pivot collections, where one item in the collection drills down into an entirly new collection. The dev community around Pivot is still very young, so there isnt much tribal knowledge built up yet.  I've spent a lot of time trying to get things to work through trial and error, as well as digging around in Reflector.  But I've finally got a framework built for programatically creating DeepZoom images, Pivot collections, Sparse Images, etc.   If anyone has any questions, or suggestions on a post topic, leave a comment and I'll try and answer your question.

  Read the article

• What are best practices for testing programs with stochastic behavior?

  - by John Doucette

  Doing R&D work, I often find myself writing programs that have some large degree of randomness in their behavior. For example, when I work in Genetic Programming, I often write programs that generate and execute arbitrary random source code. A problem with testing such code is that bugs are often intermittent and can be very hard to reproduce. This goes beyond just setting a random seed to the same value and starting execution over. For instance, code might read a message from the kernal ring buffer, and then make conditional jumps on the message contents. Naturally, the ring buffer's state will have changed when one later attempts to reproduce the issue. Even though this behavior is a feature it can trigger other code in unexpected ways, and thus often reveals bugs that unit tests (or human testers) don't find. Are there established best practices for testing systems of this sort? If so, some references would be very helpful. If not, any other suggestions are welcome!

  Read the article

• Reasonable size for "filesystem reserved blocks" for non-OS disks?

  - by j-g-faustus

  When creating a file system ( mkfs ...) the file system reserves 5% of the space for its own use because, according to man tune2fs: Reserving some number of filesystem blocks for use by privileged processes is done to avoid filesystem fragmentation, and to allow system daemons, such as syslogd(8), to continue to function correctly after non-privileged processes are prevented from writing to the filesystem. But with large drives 5% is quite a lot of space. I have 4x1.5 TB drives for data storage (the OS runs on a separate disk), so the default setting would reserve 300 GB, which is an order of magnitude more than the the entire OS drive. The reserved space can be tweaked, but what is a reasonable size for a data disk? Can I set it to zero, or could that lead to issues with fragmentation?

  Read the article

• why write-enable ring

  - by SpashHit

  Here's an "interview question" that while ostensibly about hardware really does inform a software design principal as well. Computers used to (still do I guess, somewhere) use magnetic tape reels to store data. There was a plastic accessory you could attach to a tape reel called a "write-enable ring". If the tape had such a ring, the tape drive allowed writing to the tape... if not, it only allowed read access. Why was the choice to design the system in this way? Why not have a "write protect ring" instead, with the opposite effect?

  Read the article

• Exporting UV coords from Blender

  - by Soapy

  So I have searched on google and various other websites but I've not found an answer. The only ones I did find did not work. So my question is how do I get UV coords from blender (2.63)? Currently I'm writing my own custom file exporter, and so far have managed to export vertices and their normals. Is there a way to export the UV coords? N.B. I'm currently try to figure it out using a simple cube that is unwrapped and has a texture applied to it.

  Read the article

• Should I still consider using Appcelerator Titanium for building mobile apps if I don't have any web dev skills?

  - by BeachRunnerJoe

  Hello, I'm an experienced desktop developer who's recently begun writing iOS apps and would like to venture into Android development as well. I've been hearing a lot of talk surrounding the Appcelerator Titanium framework lately, but I'm not sure I fully understand it's purpose. As I understand it, it's a framework for building native mobile apps using web technologies. If I don't have any web dev skills, are there any ways that using Appcelerator Titanium would benefit me? Thanks for your thoughts, I'm going to continue researching this right now.

  Read the article

• How to write a network game?

  - by TomWij

  Based on Why is so hard to develop a MMO?: Networked game development is not trivial; there are large obstacles to overcome in not only latency, but cheat prevention, state management and load balancing. If you're not experienced with writing a networked game, this is going to be a difficult learning exercise. I know the theory about sockets, servers, clients, protocols, connections and such things. Now I wonder how one can learn to write a network game: How to balance load problems? How to manage the game state? How to keep things synchronized? How to protect the communication and client from reverse engineering? How to work around latency problems? Which things should be computed local and which things on the server? ... Are there any good books, tutorials, sites, interesting articles or other questions regarding this? I'm looking for broad answers, but specific ones are fine too to learn the difference.

  Read the article

• How to find the occurrence of particular character in string - CHARINDEX

  - by Vipin

  Many times while writing SQL, we need to find if particular character is present in the column data. SQL server possesses an in-built function to do this job - CHARINDEX(character_to_search, string, [starting_position]) Returns the position of the first occurrence of the character in the string. NOTE - index starts with 1. So, if character is at the starting position, this function would return 1. Returns 0 if character is not found. Returns 0 if 'string' is empty. Returns NULL if string is NULL. A working example of the function is SELECT CHARINDEX('a', fname) a_First_occurence, CHARINDEX('a', fname, CHARINDEX('a', fname)) a_Second_occurrence FROM Users WHERE fname = 'aka unknown' OUTPUT ------- a_First_occurence a_Second_occurrence 1 3

  Read the article

• Issue in Webscrapping in C# : Downloading and parsing zipped text files

  - by user64094

  I am writing an webscrapper, to do the download content from a website. Traversing to the website/URL, triggers the creation of a temporary URL. This new URL has a zipped text file. This zipped file is to be downloaded and parsed. I have written a scrapper in C# using WebClient and its function - DownloadFileAsync(). The zipped file is read from the designated location on a trapped DownloadFileCompleted event. My issue : The Windows 'Open/Save dialog is triggered". This requires user input and the automation is disrupted. Can you suggest a way to bypass the issue ? I am cool with rewriting the code using any alternate libraries. :) Thanks for reading,

  Read the article

• CLI program to download album art

  - by John Baber

  I'd like to be able to do this: $ pwd /home/$USER/music/ripped_music/Monty_Python-Instant_Record_Collection $ ls 01.The_Executive_Intro.mp3 ... 16.The_Lumberjack_Song.mp3 $ mystery_command_or_script . $ ls 01.The_Executive_Intro.mp3 ... 16.The_Lumberjack_Song.mp3 album_cover.jpg $ Somewhere in the guts of Rhythmbox, totem, etc. this is being done. I'd like to be able to do it myself. I don't need help actually writing a script. I'd really just like to know if there's something like CDDB for album covers. (Scraping albumart.org is the current working solution.)

  Read the article

• Few New Features Added to Geekswithblogs.net

  - by Staff of Geeks

  After reviewing some of the feedback from our bloggers we added a couple new features to Geekswithblogs.net and there are still more to come.  Here is a list of the features we added.   Fixed the Twitter parser to better support URLs and Hash Tags Added some hooks behind the scenes to tags posts with common keywords automatically Added Facebook likes and Tweets to the bottom of every post Cleaned up a few skins Images on the main page for bloggers who use Gravatar or Twitter integration Random bug fixes based on Log   We are definitely working to make Geekswithblogs.net faster and better.  If you have any suggestions, please feel free to share them with the team.  On a side note, if that suggestion is move to WordPress, I will reply to you with stop writing ASP.NET for your day job and move to PHP.  That request is the equivalent in my eyes.  If we have enough bloggers leave the Microsoft .NET Platform for their main source of income, we might consider it.   Technorati Tags: Geekswithblogs.net,Features,Version 4.0

  Read the article

• Did Microsoft Add Wiretapping Capability to Skype?

  Ryan Gallagher, writing for Slate, put two and two together from a lot of no comments. He noted that back in 2007, German police forces said that they couldn't tap into Skype calls because of of its strong encryption and complicated peer-to-peer network connections; in fact, Skype bluntly stated at the time that, due to its encryption and architecture techniques, it couldn't conduct wiretaps. But that may have changed. Gallagher cited a Forbes article that claims the hacker community is talking about recent changes to Skype's architecture and whether they will allow users to be wiretapped. ...

  Read the article

• Are the technologies used in an application part of the architecture, or do they represent implementation/detailed design details?

  - by m3th0dman

  When designing and writing documentation for a project an architecture needs to be clearly defined: what are the high-level modules of the system, what are their responsibilities, how do they communicate with each other, what protocols are used etc. But in this list, should the concrete technologies be specified or this is actually an implementation detail and need to be specified at a lower level? For example, consider a distributed application that has two modules which communicate asynchronously via AMQP protocol, mediated by a message broker. The fact that these modules use the Spring AMQP library for sending and receiving messages is a fact that needs to be specified in the architecture or is a lower-level detailed design/implementation detail?

  Read the article

• Offre demploi Job Offer - Montreal

  Im currently helping a client plan its management systems re-architecture and they are looking to hire a full time .NET developer.  Its a small 70 people company located in the Old Montreal, youll be the sole dev there and youll use the latest technologies in re writing their core systems. Heres the job offer in French: Concepteur de logiciel et programmeur-analyste .NET chevronn (poste permanent temps plein) Employeur : Traductions Serge Blair inc. Ville : Montreal QC TRSB, cabinet...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

< Previous Page | 109 110 111 112 113 114 115 116 117 118 119 120  | Next Page >