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• Comment améliorer le temps de compilation pour C/C++ ? Apple propose un système de modules pour remplacer les en-têtes

  Comment améliorer le temps de compilation pour C/C++ ? Apple propose un système de modules pour remplacer les en-têtes Un des problèmes assez décriés des langages C et C++ est le temps de compilation, qui est un peu plus long. Cela est surtout dû à l'utilisation des en-entêtes (headers). Les développeurs d'Apple viennent de proposer un document assez intéressant qui introduit un système de modules pour C et C++ afin d'améliorer le temps de compilation. À titre d'exemple, Apple cite le minuscule code source de « Hello world » en C : quatre lignes de code seulement. Pourtant, le fichier d'en-tête nécessaire pour sa compilation est 173 fois plus grand que l'application elle-m...

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• Why google isn't updating my site title in search results? [closed]

  - by SharkTheDark

  Possible Duplicate: Google doesn't seem to update the description or title of my homepage I had my domain for few days before I uploaded site to it, and it had one title, and then when I uploaded content it should get new title, but with my misunderstanding of WordPress it had blocked robots.txt and keyword with no-index and no-follow. But I removed that like 7 days ago, and I see in reports that Google bot is crawling over my site, but my site title isn't updating, it still has old domain title when site wasn't there... My robots.txt has now: User-agent: * Allow: / I have clear title tag on every page. How long does it take to update? Do I need to check something else?

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• Updated version of Adobe Reader

  - by Joe_Kerr

  I'm not sure if this has been answered already...anyhow, I'm placing this question, so you could help. I've been a PC user for as long as I can remember, and I've just migrated to Ubuntu. So far the product has delivered the satisfaction I am expecting. However, there is one program that I'll need to ensure my productivity--an updated version of the Adobe REader. Is there any way I could get this program via Ubuntu, without using WINE? please let me know... thanks!

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• nfs mountpoint named ``share'' breaks ls and man

  - by freddyb

  I mounted a nfs server to ~/share. This works fine as long as I'm at home, where the nfs share is in reach. Whenver I'm not, this seems to break access to all manpages. Using man (or ls in my homedir) waits forever. Checking with strace reveals that they try to access the folder called share. Unmounting fails too. Even with -l (lazy) and -f (force). I am asking for three things here: Is ``share'' a magic name? Does something like MANPATH exist, which I should avoid? How do I unmount without rebooting? (I already commented the share out in fstab) What would you suggest me to do, to have network/position based mounting of NFS shares?

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• Better way for calculating project euler's 2nd problem Fibonacci sequence)

  - by firephil

  object Problem_2 extends App { def fibLoop():Long = { var x = 1L var y = 2L var sum = 0L var swap = 0L while(x < 4000000) { if(x % 2 ==0) sum +=x swap = x x = y y = swap + x } sum } def fib:Int = { lazy val fs: Stream[Int] = 0 #:: 1 #:: fs.zip(fs.tail).map(p => p._1 + p._2) fs.view.takeWhile(_ <= 4000000).filter(_ % 2 == 0).sum } val t1 = System.nanoTime() val res = fibLoop val t2 = (System.nanoTime() - t1 )/1000 println(s"The result is: $res time taken $t2 ms ") } Is there a better functional way for calculating the fibonaci sequence and taking the sum of the the even values below 4million ? (projecteuler.net - problem 2) The imperative method is 1000x faster ?

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• Good analytics tools that can track visitor actions from a particular source?

  - by tnorthcutt

  Are there good tools that can track what actions a certain subset of visitors (i.e. from a particular source) do once they're on your site? As far as I know (which could be wrong), Google Analytics can't do this beyond telling you how long they stayed, bounce rate, and average number of pages. I'm looking for something that can tell me which links they clicked on, and if possible break it down per-visitor. Free solutions would be great, but I'm anticipating that this would require a paid solution.

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• USB disk not recognized after detaching from DVD player. What to do?

  - by MMA

  I had one Transcend 4GB USB stick formatted to NTFS and was working fine. Today I inserted this disk into a DVD player, and it was saying, "loading". After a long time, noting happened, and it seemed that the stick (NTFS) is not recognized by it. I took out the stick and tried to reformat to FAT32. But the stick is not being recognized in my machine (Ubuntu 12.04). I tried the advices from USB drive not recognized after Erase Disk, without any success. When I tried Disk Utility, the stick is indicated as a generic device. See image, Formatting this device fails, saying, No medium found. Again see image, gparted does not even list this device. The same thing happens for fdisk. It is not listed there. Have I totally lost this stick? What should I do?

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• Managing large downloadable content on mobile devices

  - by larromba

  This is a general question of how to best manage large downloadable content on mobile devices. Lets consider a situation whereby a mobile app needs to download a number of very large content items, like HD videos, that are over 500MB but under 2GB. Now, lets assume this content delivery system should be scalable. Would it be a fair assumption that: A reputable cloud service would be needed - if so, what is a reliable and cost effective cloud service for mobile devices based on anyone's experience? Large content downloads should only be attempted over a wifi connection, so the end user doesn't incur large costs, e.g. when travelling. Downloads should carry on in the background if possible, as the user won't want to wait in an app for long periods. If the downloads don't finish, or the OS quits the app, all downloads should carry on when the app is next activated? Are there any other pitfalls anyone may have experienced when managing large content on mobile devices? Thanks.

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• Passing functions into other functions as parameters, bad practice?

  - by BlueHat

  We've been in the process of changing how our AS3 application talks to our back end and we're in the process of implementing a REST system to replace our old one. Sadly the developer who started the work is now on long term sick leave and it's been handed over to me. I've been working with it for the past week or so now and I understand the system, but there's one thing that's been worrying me. There seems to be a lot of passing of functions into functions. For example our class that makes the call to our servers takes in a function that it will then call and pass an object to when the process is complete and errors have been handled etc. It's giving me that "bad feeling" where I feel like it's horrible practice and I can think of some reasons why but I want some confirmation before I propose a re-work to system. I was wondering if anyone had any experience with this possible problem?

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• I removed Ubuntu from the BIOS menu but it comes back.

  - by jimirings

  For reasons too long to explain, I reluctantly removed Ubuntu from my computer. After completely removing it and deleting the partition that it was installed onto, I discovered that I still had two Ubuntu entries in the boot order in my BIOS menu. I deleted them by following the instructions in this answer: http://askubuntu.com/a/63613/54934 As I was doing it, everything appeared to go smoothly. However, upon reboot one of them came back. What's going on here? How do I delete it permanently? I'll gladly provide any other information that may be needed to diagnose the problem. Thanks.

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• Randomly spawning bitmaps on cnvas

  - by Toystoj

  I need some ideas in order to finish algorithm. I'm randomly placing objects (bitmaps) on canvas without overlapping. Time needed to finish it is my problem. When I need to spawn for example 80% of canvas it takes to long. So i was thinking : I should make some change when the bitmaps take off 50 % of canvas. I want to tell algorithm that it should generate new locations (x,y) where it is free space. My question is : How to render new location (x,y) in place where is free space. In summary: Things I know : object location (x,y) 4 corners (x,y) of object object width, height canvas width, height Any suggestions?

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• How do I install VirtualBox 4.1?

  - by William

  How to install virtualbox-4.1.4 in ubuntu 11.04 fluently? when apt-get install libqt* unmet dependency. there is a long list of unmet dependency. Where start first and any command to install virtualbox fluently? You might want to run 'apt-get -f install' to correct these: The following packages have unmet dependencies: virtualbox-4.1 : Depends: libcurl3 (>= 7.16.2-1) but it is not going to be installed Depends: libqt4-network (>= 4:4.5.3) but it is not going to be installed Depends: libqt4-opengl (>= 4:4.7.0~rc1) but it is not going to be installed Depends: libqtcore4 (>= 4:4.7.0~beta1) but it is not going to be installed Depends: libqtgui4 (>= 4:4.7.0~beta1) but it is not going to be installed Recommends: libsdl-ttf2.0-0 but it is not going to be installed Recommends: dkms but it is not going to be installed Recommends: libhal1 (>= 0.5) but it is not going to be installed E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

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• When profiling a function for time use, what information is desirable?

  - by AaronMcSmooth

  I'm writing a program similar to Python's timeit module. The idea is to time a function by executing it anywhere from 10 to 100,000 times depending on how long it takes and then report results. I've read that the most important number is the minimum execution time because this is the number that best reflects how fast the machine can run the code in question in the absence of other programs competing for processor time and memory. This argument makes sense to me. Would you be happy with this? Would you want to know the average time or the standard deviation? Is there some other measure that you consider more important?

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• Is there a way to return a response every x seconds or so to a single http request?

  - by luis

  I'm wondering if it's possible to send a response every second or so to a single http request. Like for example the client makes an http request, then the server sends a space character every second. This could be never ending or with a limit, for example a minute. I think the word 'response' is misleading in this context, since I don't necessarily mean an http response. The whole http response could be composed of the space characters, which would mean a single http response to a single http request, except that it is a minute long. I tried chunked encoding but I don't think it works, or at least my implementation's wrong.

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• Changing Workspaces changes active window

  - by puk

  I have a dual monitor setup, but I am sure it's the same with a single monitor. If I have two applications open, one is vim, the other is google chrome. Lets say the focus is on vim. If I switch to another workspace (ie. alt3) then switch back to that workspace (ie. alt1) now the focus is on google chrome. This process toggles indefinitely so long as I don't transition too quickly. Is there any way to prevent/disable this?

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• Any recommended books/resources on component-based design?

  - by user1163640

  I come from a background with heavy use of the classical object-oriented paradigm for software development. The company I am a part of switched to Unity not too long ago, and we're all very excited to get started using it However, one aspect that have sparked my interested, and which I think will become a very important part of our future development, is Unity's approach to component-based design with scripting; with less focus on typical hierarchical aspect. Question I was wondering if anyone could recommend any good books on this subject? I have had trouble finding any books or books with reliable reviews, and was wondering if anyone more experienced here had something to say on the issue? Any other kind of resource would be excellent too, I'm just interested in getting to learn everything I can about it. This is not meant as a discussion about best books or resources on the topic, but simply a question regarding any resources that any of you find useful. Thank you all for your time!

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• How to Enable SideLoading in a SharePoint Site

  - by Damon Armstrong

  I was trying to deploy a SharePoint App for the first time and ran into an error about SideLoading not being enabled on the site. The solution is fairly simple – you just have enable the Developer feature on the site.  Unfortunately, it’s a hidden feature so you have to do it through PowerShell.  While searching the internet for the command to enable the feature I kept running into really long scripts that seemed overly complicated.  Fortunately, Jeff (a friend at work) sent me this snippet that is very concise and does the job: Enable-SPFeature e374875e-06b6-11e0-b0fa-57f5dfd72085 –url http://yoursharepointbox/site/ Obviously, you will need to update the URL to match your environment!

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• Is there benefit to maintain a large project with bad code?

  - by upton

  I'm currently maintain a large project with more than 100000 LOC. The code use the MFC as its framework, in genral, it only has interface part which heavily use the mfc api and a business logic part which full of bad code, confusing logic. The company has some small features delivered to the customer each year(most features are adding code to exisiting project, finding some reference of some api or variable and it' s no different with fixing 3-4 bugs ), most of the tasks are to resove issue and optimize performance . Like other company with maintaining position, it value people who knows much logic about its product. There are people who can quickly finish the job on such project, is it worth to train myself like such a programmer? Is there benifits to work on such project for a long time?

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• When I access my new domain name it displays for me but not for other people? [closed]

  - by janoChen

  Possible Duplicate: How long does propagation of newly registered private name servers typically take? I just bought this domain at GoDaddy (48 hours ago): http://formatron.net/ My hosting provider is Webhostingpad.com. I Added their name servers to GoDaddy 48 hours ago. More information in this previous question. It is working in my computer but some people just see a "cannot found error." What could be the reason? EDIT: I checked on my mobile phone and it works.

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• Need your opinion: which domain should I use for the blog?

  Reader new to my blog might have wondered why blog lives in a .NZ domain: to make a long story short is because when I started my blog I was soo excited about my relocation to New Zealand that I registered a .NZ domain. Then I came back to Italy, and started to work in Milano. Last autumn I had to chance to go back to New Zealand again, but at the same time the offer to work for an European Institution arrived. And then my .net.nz domain didn't make sense any more. And because it seems like I've...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.

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• Hosting a Small PHP/MySQL Project [closed]

  - by paulrehkugler

  I have a small PHP/MySQL project in the works and I'm looking for somewhere to host it. My criteria are: Ability to run PHP/MySQL (either natively, or contains the ability to install). Ability to manipulate the web server, so I can make pretty URLs. Not spammy (if you've ever looked for hosting, you know what I mean). Semi-professional - no ridiculous downtime or long response time. I obviously don't need anything spectacular (I'm not aiming to be the next Facebook) but something that doesn't seem cheap. Reasonably priced - obviously this is a side project for fun so I'm not planning on making or dispensing any sort of "serious" revenue.

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• If you need more than 3 levels of indentation, you're screwed?

  - by jokoon

  Per the Linux kernel coding style document: The answer to that is that if you need more than 3 levels of indentation, you're screwed anyway, and should fix your program. What can I deduct from this quote? On top of the fact that too long methods are hard to maintain, are they hard or impossible to optimize for the compiler? I don't really understand if this quote encourages better coding practice or is really a mathematical / algorithmic sort of truth. I also read in some C++ optimizing guide that dividing up a program into more function improves its design is a common thing taught at school, but it should be not done too much, since it can turn into a lot of JMP calls (even if the compiler can inline some methods by itself).

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• Is it possible to save output from a command to a file subsequent the command already has been executed?

  - by NES

  Does an elegant way exists to save the output of a command subsequent to a file as long as the terminal window is open? I mean once the command has been executed in the terminal. The output is still there in terminal. Now i could copy & paste all the lines and save it to a file. But perhaps does a method exist to somehow write the output buffer of a terminal window to a file or even better the output of an already executed command?

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• How to recover organic position in Google results after server down?

  - by ElHaix

  I have several sites that were doing quite well in terms of organic SEO rankings. I have the important sites setup in Google's Webmaster tools. Long story short, the system was down for about two weeks. Now in AdSense and Analytics, I am seeing that the page views are SLOWLY increasing. and I would like to know if there is anything I can do now to try to expedite the process of regaining those positions. Since there were several errors from that server, is it possible that Google will now rank any site from that IP address lower due to those two weeks of errors? Is this something that I just have to let ride out? Thanks.

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• Where can I post software challenges and offer prizes as a way to outsource some work?

  - by r0u1i

  My apologies if this is off-topic, I thought this question suits this site better than stackoverflow. We have a few rather small and bounded problems in my company that we would love to outsource. Since they are very similar to challenges ("prove this and this can be done" rather than "supply the code"), we thought of posting them as challenges and offer prizes to the first guys who will crack them up. The outsourcing sites I know off (TopCoder, ODesk) are more interested in long term contracts with monthly pay. Is there a site better matching my needs out there?

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