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Articles indexed Thursday March 25 2010

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  • What is the equivalent of memset in C#?

    - by Jedidja
    I need to fill a byte[] with a single non-zero value. How can I do this in C# without looping through each byte in the array? Update: The comments seem to have split this into two questions - Is there a Framework method to fill a byte[] that might be akin to memset What is the most efficient way to do it when we are dealing with a very large array? I totally agree that using a simple loop works just fine, as Eric and others have pointed out. The point of the question was to see if I could learn something new about C# :) I think Juliet's method for a Parallel operation should be even faster than a simple loop. Benchmarks: Thanks to Mikael Svenson: http://techmikael.blogspot.com/2009/12/filling-array-with-default-value.html It turns out the simple for loop is the way to go unless you want to use unsafe code. Apologies for not being clearer in my original post. Eric and Mark are both correct in their comments; need to have more focused questions for sure. Thanks for everyone's suggestions and responses.

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  • Problem with LINQ Where Clause

    - by Krishma
    var results = from formNumber in context.DetailTM join c in context.ClaimPeriodTM on formNumber.ClaimPeriod equals c.Cid where formNumber.FormNumber.StartsWith(fNumber) && formNumber.RegistrationNumber != registrationNumber select new { RegNo = formNumber.RegistrationNumber, CP = c.ClaimPeriod, FormNo = formNumber.FormNumber }; The AND CLAUSE with .STARTSWITH Doesn't work. If I use == operator the query works fine. I tried adding brackets to the where clause but it didn't help. Any idea what is missing. Thank you in Advance.

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  • Matt Asay on Partisanship

    <b>The-Source.com:</b> "If Microsoft warms up to open source, why not share some plaudits? And even when it gets things wrong, surely it&#8217;s better to politely critique rather than spew invectives?"

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  • Install .NET 3.5 SP1 on Windows 7 RC

    - by James Alexander
    While attempting to install .NET 3.5 SP1 on a fresh install of Windows 7 RC, nothing happens. The machine gives a UAC prompt. When selecting Yes, nothing happens. Using the full redistributable package gives the same result: nothing. Is there a reason why the .NET 3.5 SP1 installer would suddenly quit and not proceed with installation?

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  • Apache reverse-proxy intermittent error 113 - No route to host

    - by BonkaBonka
    I've got an Apache 2.0.52 server on CentOS 4 that front-ends a couple of App servers (mix of Jetty and Tomcat). Apache has a handful of virtual hosts configured like this: <VirtualHost www1.example.com:443> ServerName www1.example.com DocumentRoot "/mnt/app_web/html" SSLEngine on SSLCipherSuite ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP SSLCertificateFile /etc/httpd/conf/ssl.crt/server.crt SSLCertificateChainFile /etc/httpd/conf/ssl.crt/chain.crt SSLCertificateKeyFile /etc/httpd/conf/ssl.key/server.key SetEnvIf User-Agent ".*MSIE.*" nokeepalive ssl-unclean-shutdown downgrade-1.0 force-response-1.0 RewriteEngine on RewriteRule ^/app1/(.*)$ http://app1.example.com:8080/app1/$1 [P,L] RewriteRule ^/app2/(.*)$ http://app2.example.com:8080/app2/$1 [P,L] </VirtualHost> However, I'm getting the following errors in the logs intermittently: [Fri Dec 04 07:19:41 2009] [error] (113)No route to host: proxy: HTTP: attempt to connect to 10.0.0.1:8080 (app1.example.com) failed I initially tried turning off IPv6, and that seemed to largely cure it, but I still have sporadic bursts of these messages. Additionally, we're running memcache on same front-end and during the times when I'm getting those messages in Apache's log, the following command doesn't work: echo stats | nc 127.0.0.1 11211 No messages are printed, but neither are the stats printed. I am completely lost as to how to proceed with troubleshooting this. =(

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  • vmware on Hyper-v

    - by optician
    I'm wondering if it will be possible to install vmware server on a hyper-v image? Currently I get an error when trying to install. Setup cannot continue becuase microsofts hyper-v is being used. Please disable it, reboot and start the VMWare Server installation again.

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  • What is the default mount point on Linux systems (all)?

    - by Vijay Sharma
    My question is very basic in nature. Is the mount point for external media (like USB) always /media? Because in a Debian system, if I plug in any USB device that goes to the /media folder. So is it the case with all the other Linux flavors like Fedora, Ubuntu, etc. If a USB device is automatically mounted will it always go to the /media directory?

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  • Ubuntu Nvidia Xorg Twinview doesnt like my monitors

    - by Andrew Bolster
    Basically, using the latest available ubuntu drivers (195.36.15) I cannot for the life of me get my two monitors to operate at suitable resolutions. When not using the drivers atall and going single-screen, both monitors support 1680x1050, but this option is only shown for one monitor in nvidia-settings, and when i manually add a metamode into the xorg.conf, it just gives up initialising the second screen. (**) Mar 25 15:49:47 NVIDIA(0): TwinView enabled (II) Mar 25 15:49:47 NVIDIA(0): Assigned Display Devices: CRT-0, CRT-1 (II) Mar 25 15:49:47 NVIDIA(0): Validated modes: (II) Mar 25 15:49:47 NVIDIA(0): "1680x1050,1680x1050" (II) Mar 25 15:49:47 NVIDIA(0): Virtual screen size determined to be 1680 x 1050 Any ideas?

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  • Queston about torrents

    - by c0mrade
    Why do my torrents go at rate 25/30 kb/s and my regular http downloads rate up to 300 kb/s .. is my ISP to blame for this, I meant torrents have like thousand seeders and again its very slow.How are they blocking torrent speed, can I bypass it? @gekkz Results : * There's no indication that your ISP rate limits all downloads at port 6881. In our test, a TCP download on a BitTorrent port achieved at least 392 Kbps while a TCP download on a non-BitTorrent port achieved at least 223 Kbps. You can find details here. * There's no indication that your ISP rate limits all uploads at port 6881. In our test, a TCP upload on a BitTorrent port achieved at least 314 Kbps while a TCP upload on a non-BitTorrent port achieved at least 191 Kbps. You can find details here.

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  • The Benefits of Being Featured in The DMOZ

    The DMOZ directory submission, or The Open Directory Project, is now so highly regarded that any respectable SEO services company is now presenting its customers with a DMOZ submission service. Another reason why the DMOZ site submission is now featured in the services lists of search engine optimization companies is that performing a DMOZ submission can prove to be extremely difficult, or even impossible in some cases, for anyone other than optimization experts.

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  • How Helpful is Onsite Optimization Exactly?

    Search Engine Optimization, or SEO, is one of the most widely used online services today. One of the main reasons why SEO services have become so sought after is that SEO services come as a great alternative to other much more expensive optimization services such as PPC, and so on. With the number of websites being introduced to the internet on a daily basis constantly growing, it is safe to say that there are no more safe heavens or exclusive niches where a few select companies can operate without worries.

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  • Is It So Easy to Become an Ethical SEO Expert?

    Search engine optimization services are among the most popular services offered by internet. In order to push a website on top of search engine results people do optimization of their websites. However, not everybody has the knowledge and time to do this task of promoting a website online in a professional manner.

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  • Google Page Ranking - Now You See it, Now You Don't

    Probably the worst nightmare internet marketers and even experienced SEO specialists encounter when they promote their websites on the web is the severe dropping of their websites rankings in Google. Now you may be in trouble if you are an SEO consultant, and you have a client, and he gets to know that his website has disappeared on the first page of Google when you've just told him a few days ago that his site landed on the number 1 spot of Google.

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  • SEO - The Nuts and Bolts

    This article outlines the major variables a successful website owner should take into consideration when attempting to align their website with the algorithms the search engines use to determine a page's overall relevance. These variables include: Keywords (contained within the metatags as well as within the content of the site), regular XML Sitemap creation and periodic submission to the search engines, Domain Name and Age, and finally backlinking or reciprocal linking to a handful of relevant and viable sites.

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  • NoFollow and DoFollow Blog - Comment Links Affect Search Engine Optimization

    Many sellers of information products leave comments on blogs, especially popular ones with high Google PageRank, thinking that they are getting those good inbound links to their sites. But there's a problem. Most blogs put a "No Follow" tag in the link to your website. Sure, readers can click on it and check you out, and that's a good thing. But you get no SEO benefit.

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