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• Buddypress with bbpress: Showing latest topics on front page

  - by MadsMadsDk

  I'm doing a wordpress solution with BuddyPress and bbPress, where I need to display the five newest topics on the homepage, as if it was blog-entries, but it seems kind of hard to accomplish. I'm figuring I gotta do something with the activity stream, but it seems like the stream is based on the user who is currently logged in, which is not what I want. So what should I do? Use a nifty plugin that does the trick (maybe someone knows a plugin I don't know of, as I've already tried the bbPress Latest Discussion plugin) Hardcode a forum-activity loop into the page-template file, using the is_front_page() function? Is there a forum-activity hook, that display the latest forum topics sitewide? Thanks in advance

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• What is Object Oriented Programming ill-suited for?

  - by Richard JP Le Guen

  In Martin Fowler's book Refactoring, Fowler speaks of how when developers learn something new, they don't consider when it's inappropriate for the job: Ten years ago it was like that with objects. If someone asked me when not to use objects, it was hard to answer. [...] It was just that I didn't know what those limitations were, although I knew what the benefits were. Reading this, it occurred to me I don't know what the limitations or potential disadvantages of Object-Oriented Programming are. What are the limitations of Object Oriented Programming? When should one look at a project and think "OOP is not best suited for this"?

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• moore's law and quadratic algorithm

  - by damon

  I was going thru a video (from coursera - by sedgewick) in which he argues that you cannot sustain Moore's law using a quadratic algorithm.He elaborates like this In year 197* you build a computer of power X ,and need to count N objects.This takes M days According to Moore's law,you have a computer of power 2X after 1.5 years.But now you have 2N objects to count. If you use a quadratic algorithm, In year 197*+1.5 ,it takes (4M)/2 = 2M days 4M because the algorithm is quadratic,and division by 2 because of doubling computer power. I find this hard to understand.I tried to work thru this as below To count N objects using comp=X , it takes M days. -> N/X = M After 1.5 yrs ,you need to count 2N objects using comp=2X -> 2N/(2X) -> N/X -> M days where do I go wrong? can someone please help me understand?

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• Dynamic obstacles avoidance in navigation mesh system

  - by Variable

  I've built my path finding system with unreal engine, somehow the path finding part works just fine while i can't find a proper way to solve dynamic obstacles avoidance problem. My characters are walking allover the map and collide with each other while they moving. I try to steering them when collision occurs, but this doesn't work well. For example, two characters block on the road while the third one's path is right in the middle of them and he'll get stuck. Can someone tell me the most popular way of doing dynamic avoidance? Thanks a lot.

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• Adding Bzr Launchpad PPA to Ubuntu Hardy

  - by Robery Stackhouse

  I've got TortoiseBazaar installed on my Windows laptop, and I was trying to branch a repository hosted on my VPS to another directory on my VPS, and I got this lovely error: bzr: ERROR: Unknown branch format: 'Bazaar Branch Format 7 (needs bzr 1.6) That lead me to this mailing-list archive: http://osdir.com/ml/bazaar/2009-06/msg00692.html Then I tried following the instructions here to add the Launchpad PPA to /etc/apt/sources.list, but they forgot to mention that you need to do this: sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com D702BF6B8C6C1EFD Which I found out about here after I got this error: GPG error: http://ppa.launchpad.net hardy Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY D702BF6B8C6C1EFD after modifying my /etc/apt/sources.list and running: sudo apt-get update Just thought I'd save someone else some pain. And of course, don't forget to uninstall the version of bzr that wouldn't play ball in the first place.

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• What's the best way to create animations when doing Android development?

  - by Adam Smith

  I'm trying to create my first Android game and I'm currently trying to figure out (with someone that will do the drawings and another programmer) what the best way to create animation is. (Animations such as a character moving, etc.) At first, the designer said that she could draw objects/characters and animate them with flash so she didn't have to draw every single frame of an action. The other programmer and I don't know Flash too much so I suggested extracting all the images from the Flash animation and making them appear one after the other when the animation is to start. He said that would end up taking too much resource on the CPU and I tend to agree, but I don't really see how we're supposed to make smooth animations without it being too hard on the hardware and, if possible, not have the designer draw every single frame on Adobe Illustrator. Can an experienced Android game developper help me balance this out so we can move on to other parts of the game as I have no idea what the best way to create animations is.

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• How do I verify the ownership of a domain from Namecheap to use Google Apps?

  - by Rook

  I registered a domain with Namecheap.com, and started the Google Apps registration process. After the initial data filling, google apps wishes me to prove the ownership of a domain, and has given me 4 choices: Add a DNS record to your domain's configuration Link to your Google Analytics account Upload an HTML file to your server Add a meta tag to your site's home page What is the differences between these, and how do I (if someone knows perhaps how to do it on Namecheap, it would be even better) complete this step in the process? I would appreciate any advice you might have.

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• How to remove old robots.txt from google as old file block the whole site

  - by KnowledgeSeeker

  I have a website which still shows old robots.txt in the google webmaster tools. User-agent: * Disallow: / Which is blocking Googlebot. I have removed old file updated new robots.txt file with almost full access & uploaded it yesterday but it is still showing me the old version of robots.txt Latest updated copy contents are below User-agent: * Disallow: /flipbook/ Disallow: /SliderImage/ Disallow: /UserControls/ Disallow: /Scripts/ Disallow: /PDF/ Disallow: /dropdown/ I submitted request to remove this file using Google webmaster tools but my request was denied I would appreciate if someone can tell me how i can clear it from the google cache and make google read the latest version of robots.txt file.

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• How to make background image black-and-white?

  - by Dmitri

  Are there any filters that would make background image to be displayed as black-and-white? What I mean, is this: i have a background image set via css using background: url(/image.png); But now I need to apply a filter so that an image is shown as black-white only. Ideally, I would like to also apply opacity to it. The effect I really trying to achieve is to have background image black/white and on hover over that span element the filter would be removed, revealing the color version. And of cause it has to work in FF, Chrome, IE Can someone help me?

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• custom facebook connect image - Is it facebook's policy violation?

  - by Viruthagiri

  I was going to change facebook's default login button with my custom image like mashable I mean like this But I found a article which state its against facebook's policies Is it really a violation? If it is how come mashable using custom image? Can someone answer me? Update This is the exact image i would like to use. Facebook mentioned like this in this page. While you may scale the size to suit your needs, you may not modify the “f” logo in any other way (such as by changing the design or color). If you are unable to use the correct colour due to technical limitations, you may revert to black and white. So my sign in with facebook image violating facebook policy in anyway?

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• What percentage of software developers work solo?

  - by JMather

  I'm trying to put together some ideas for a talk, and one of the things that occurred to me, is if there's any documentation or research into how many programmers work as the lone developer within their team. I think this is an important distinction because individual developers (and perhaps small team developers) end up having to wear many more hats than developers part of a large developer group. It could give us some better insight to career development and transition tactics, as well. I've tried some generally googling, and wasn't able to turn up anything, so I'm hoping maybe someone has seen (or studied) something related to this. Thanks in advance!

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• Is there value in having technical authors in a software team?

  - by Desolate Planet

  During my 5 years in IT as a software developer, I've noticed that developers have a strong distaste towards doing any documentation. The act of taking screenshots and creating documentation seems to be a painful and time consuming experience. In one company I worked for, we had a technical documentation team with two technical authors and they developed all the user guides for our customers. In other companies where I've suggested hiring a technical author, I've been told they are not worth the money, but I'm a little unsure if that rings true. Is it better to have developers stop coding and take half a day to do screenshots and create the various guides or is it worth hiring someone who handles such tasks?

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• Updating scene graph in multithreaded game

  - by user782220

  In a game with a render thread and a game logic thread the game logic thread needs to update the scene graph used by the render thread. I've read about ideas such as a queue of updates. Can someone describe to a newbie at scene graphs what kind of interface the scene graph exports. Presumably it would be rather complicated. So then how does a queue of updates get implemented in C++ in a way that can handle the complexity of the interface of the scene graph while also being type safe and efficient. Again I'm a newbie at scene graphs and C++.

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• Cisco VPN connection using CertStore as in Windows

  - by hsz

  Hello ! In Windows I was using Cisco VPN client to connect with VPN. In connection properties I set only hostname and choose certificate which are stored in C:\Program Files\Cisco Systems\VPN Client\Certificates. I moved yesterday to Ubuntu and I need to be able to connect with that host using those certificates too. I know that there is vpnc and network-manager-vpnc but it not allows (or I do not know about it) to set cerificates dir. Can someone tell me how to connect with VPN using certificates ?

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• Are these interview questions too complex for entry-level C++ positions?

  - by Banana

  Hi All, I recently had a few interviews for programming jobs within the financial industry. I am looking for entry-level positions as I specify in the cover letter. However I am usually asked questions such as: - all two-letters commands you know in unix - representation of float/double numbers (ieee standard) - segmentation fault memory dump, and related issues - all functions you know to convert string to integer (not just atoi) - how to avoid virtual tables - etc.. Is that the custom? Because I don't think this kind of questions make sense for someone willing to get an entry-level job. Is it totally crazy to think that they should ask more conceptual questions? This is beginning to driving me nuts, honestly. Thanks

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• How can programming ability be used to help people in poverty?

  - by Matthew

  As a student studying Computer Science in college, I often hear from friends working on various humanitarian projects, and I want to do something myself. But it seems that programmers don't have as many obvious avenues to help out as, say, doctors or teachers. What are some ways in which programmers can put their talent to use for people in poverty. Disclaimer: I am not saying that programmers have some obligation to do this, merely that I want to. I apologize if this question is too subjective for this site--I am marking it community wiki just in case (edit: I can't figure out how to mark this as community wiki. Can someone help me out?).

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• I'm using a shared server, and as such Gmail marks my email as spam (all from headers are different from the same IP)

  - by chipperyman573

  I have a shared server, meaning many people share the same IP. When I send an email, the @website.com is different from someone else that shares the same IP with me, therefore Gmail marks it as spam. For example: My website's IP is 1.2.3.4. My website is mywebsite.com Person 2's website's IP is hosted by the same host, and as such their IP is 1.2.3.4 Person 2's website is person2.com. When they send an email, it gets sent from [email protected] When I send an email, it gets sent from [email protected] According to Gmail's spam thing: "Use the same address in the 'From:' header on every bulk mail you send." Again, the only similarities between our websites is the IP. However, this causes Gmail to mark both our mail as spam. Is there a way to sort this out with Gmail?

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• WWDC 2012 announced features on iOS 5?

  - by Arnold Sakhnov

  I am relatively new to iOS development, so after watching a bunch of WWDC videos announcing new awesome features for the iPhone SDK, I still got a few questions regarding their support for older devices. Specifically: Do the new compiler features (such as literals support, auto-synthesize, etc) require iOS 6 on the target device, or can the new style code be deployed to iOS 5 devices? Auto-layout for iOS, same question. Will it only be supported on iOS 6, or 5 as well? If it's 6 only, what kind of fallback are we expected to implement? Would really appreciate if someone could clarify this for me, as I'm thinking about rewriting my older unfinished project and I would love to use some of that improved SDK functionality.

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• Facebook Connect with CodeIgniter login problems

  - by Alastair Dewar

  Im having a problem using Facebook Connect on my latest website. Im running it using the CodeIgniter framework and Elliot Haughin's library (http://www.haughin.com/code/facebook/). Everything is setup okay, when the user goes to login, the request is sent to Facebook okay and returns with the code (which i presume identifies the session?). However, it doesnt seem to update the library, and after doing all this still thinks that the user is not logged in. It makes me think its a bug in the library itself, but I can't see anyone else with this problem. I have tried dumping the error log from the library but it doesnt find any problems. If someone could shed any light I would be so grateful!

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• Atheros 9250 wireless card keeps on disconnecting

  - by Vizi Balázs

  So I bought a Lenovo G575 laptop for learning purposes and found that the connection just simply disconnects if i'ts in use for downloading and it also does disconnect in every 2-5 minutes while browsing.I tested the card with Win7, it worked nicely.Since then I searched through all the topics connected to this card, also tried using older distros, Maverick ended up with the same results as the actual 12.04 distribution.I dont think it's the router cause i could access it from Win7.It's causing me a trouble using an external usb, cause it's taken from another PC in the house.I would be really grateful if someone could explain what should i do to fix it. Thanks in advance for the help

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• Building a distributed system on Amazon Web Services

  - by Songo

  Would simply using AWS to build an application make this application a distributed system? For example if someone uses RDS for the database server, EC2 for the application itself and S3 for hosting user uploaded media, does that make it a distributed system? If not, then what should it be called and what is this application lacking for it to be distributed? Update Here is my take on the application to clarify my approach to building the system: The application I'm building is a social game for Facebook. I developed the application locally on a LAMP stack using Symfony2. For production I used an a single EC2 Micro instance for hosting the app itself, RDS for hosting my database, S3 for the user uploaded files and CloudFront for hosting static content. I know this may sound like a naive approach, so don't be shy to express your ideas.

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• Anyone heard of 'tank tracking'?

  - by Heather Walters

  Someone I know told me about some seriously cutting edge blackhat SEO that he called 'tank tracking'. He said that it is some sort of code (he believes written in Python) that 'sits' around the outside perimeter of your visible webpage and listens for an incoming search spider. when a spider enters the page, it traps it in this weird wormhole, making it loop through, I don't know, certain keywords or something.... the result is that a SE like google would consequently give the page a full 100 rating (this person told me Google bestows some sort of scoring app once you've passed a certain number of their exams). A quick google search on 'tank tracking seo', 'tank tracking blackhat seo' and 'tank tracking google' yielded zero results. Let me backtrack a bit and say that I am not interested in utilizing blackhat techniques. I'm just astonished that something like this might be out in the world. Anyone heard of this?

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• Skype Video not working 13.04 & 13.10?

  - by MrA

  I am trying to fix the issue with the video calls. I can check the video from the option menu, it works fine. But it does not work while calling someone. It shows video disabled. How can i fix this issue? I am using Ubuntu 13.10 and skype version 4.2.0.11 I checked all sites including below links but could not find solution: Skype no video in 13.04 Skype Video Call Not Working Ubuntu 11.10 No video skype found Video doesn't work well in skype http://www.youtube.com/watch?v=WeaLCzB4qy8

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• How did programmers resolve their problems before the internet?

  - by 9a3eedi

  When programming, anytime I get stuck, perhaps with a compiler error that doesn't make sense, or from a GUI function that didn't do what I expected, I automatically google my problem, find someone else that faced the same thing, and read what's going on and why I'm getting the problem. Before the internet, how did people handle these situations? People used to read books and manuals more, I know. But books don't explain everything, like the odd compiler problem that you get sometimes, or nothing showing up on your screen despite you clearly writing correct OpenGL code. How did people cope when facing challenges? Did they simply "bash their head" on the wall till they figured it out? Is there something people used to do regularly on the side that gave them the ability to get themselves unstuck more easily? Were libraries/compilers much simpler back then? I've been asking this question because I sometimes feel guilty depending on Google so much when I'm pretty sure programmers before my time were more independent when it comes to facing these matters.

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• Mouse scroll issue after kernel build

  - by Anish S Kumar

  I have a Intel Cedar Trail netbook. For graphics to work, i had to build kernel 3.1 with the drivers. I followed the steps in this document After doing that, now my graphics is fine, but my mouse scroll does not work. Is that because I have not build the kernel properly? Have i missed selecting some options in the kernel compile menu? It will be nice if someone can help me. Also my wacom bamboo tablet is not recognized, i have installed the xserver-xorg-input-wacom drivers.

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