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Joel Bennett

The Performance of Arrays - Chris Burrows - 2 views

blogs.msdn.com/...the-performance-of-arrays.aspx

Development .Net Arrays Covariant Performance Reference

shared by Joel Bennett on 20 Jul 10 - Cached
  • arrays of reference types are covariant in their element type, but not safely
  • where did that exception come from? It came from the runtime, which was in a unique position to know what the real type of the array object was, and the real type of the element. It needed to determine if the assignment was allowable and throw if not. Now if you think about this for a minute, you can see that it’s going to have to perform that check for every assignment to an array element
  • arrays are covariant only for reference types?
  • ...3 more annotations...
  • So if I want to have an array of reference types, but get the runtime to treat it like an array of value types, what have I got to do? Just wrap the reference type in a value type
  • So I got rid of that check, right? But I added the initialization of a value type. Did I win or lose? Let’s do some timing to figure it out.
  • when I build Debug binaries, the Reference<T> trick makes my example about three times SLOWER.
  • Joel Bennett on 20 Jul 10
     
    Arrays are covariant only for reference types. If you use a struct wrapper to turn a reference type into a value type, the initialization of the value type takes less time than array assignment.
Fabien Cadet

Intel® 64 and IA-32 Architectures Software Developer's Manuals - 0 views

www.intel.com/...manuals

ia-32 x86 assembly reference

shared by Fabien Cadet on 07 Mar 09 - Cached
  • Fabien Cadet on 07 Mar 09
     
    Software Developer's Manuals: * Volume 1: Basic Architecture. * Volume 2A&B: Instruction Set Reference. * Volume 3A&B: System Programming Guide. * Optimization Reference Manual. * Memory Ordering White Paper. * Application Note: TLBs, Paging-Structure Caches, and Their Invalidation. * x2APIC Specification.
Fabien Cadet

SitePoint HTML / CSS / Javascript Reference - 0 views

reference.sitepoint.com

reference css html javascript web development

shared by Fabien Cadet on 21 Jun 09 - Cached
  • Fabien Cadet on 21 Jun 09
     
    Companion site for the "Ultimate CSS/HTML Reference" books. Comprehensive documentation.
Adildi ldinlio

Adobe Creative Suite 3 Web Premium All-in-One Desk Reference For Dummies|free ebooks do... - 0 views

www.ebook-x.com/esk-reference-for-dummies.html

computer design download ebook ebooks free programming web2.0 webdesign

shared by Adildi ldinlio on 18 Oct 08 - Cached
  • Adildi ldinlio on 18 Oct 08
     
    Adobe Creative Suite 3 Web Premium All-in-One Desk Reference For Dummies free download at the best library for free multimedia ebooks download.
Matti Narkia

Download - Ubuntu Pocket Guide and Reference - 0 views

www.ubuntupocketguide.com/download2.html

Ubuntu ubuntupocketguide guide reference book free free_book download Linux tech technology

shared by Matti Narkia on 11 Feb 09 - Cached
  • Matti Narkia on 11 Feb 09
     
    The PDF Edition of Ubuntu Pocket Guide and Reference is available entirely free of charge. It is practically identical to the Print Edition. You can download it by clicking the links below. Over 250,000 people already have!
Matteo Spreafico

Fabulous Adventures In Coding : The Stack Is An Implementation Detail, Part One - 0 views

blogs.msdn.com/...-an-implementation-detail.aspx

clr cli .NETGeneral c# memory allocation

shared by Matteo Spreafico on 14 Aug 09 - Cached
  • Almost every article I see that describes the difference between value types and reference types explains in (frequently incorrect) detail about what “the stack” is and how the major difference between value types and reference types is that value types go on the stack.
  • I find this characterization of a value type based on its implementation details rather than its observable characteristics to be both confusing and unfortunate. Surely the most relevant fact about value types is not the implementation detail of how they are allocated, but rather the by-design semantic meaning of “value type”, namely that they are always copied “by value”.
  • Of course, the simplistic statement I described is not even true. As the MSDN documentation correctly notes, value types are allocated on the stack sometimes. For example, the memory for an integer field in a class type is part of the class instance’s memory, which is allocated on the heap.
  • ...3 more annotations...
  • As long as the implementation maintains the semantics guaranteed by the specification, it can choose any strategy it likes for generating efficient code
  • That Windows typically does so, and that this one-meg array is an efficient place to store small amounts of short-lived data is great, but it’s not a requirement that an operating system provide such a structure, or that the jitter use it. The jitter could choose to put every local “on the heap” and live with the performance cost of doing so, as long as the value type semantics were maintained
  • I would only be making that choice if profiling data showed that there was a large, real-world-customer-impacting performance problem directly mitigated by using value types. Absent such data, I’d always make the choice of value type vs reference type based on whether the type is semantically representing a value or semantically a reference to something.
amby kdp

Download Here Best Python Programming Book For Beginners - 0 views

shared by amby kdp on 16 Mar 15 - No Cached
  • amby kdp on 16 Mar 15
     
    "Python Programming For Beginners" by James P. Long Book is the must have book for all those programmers who wish to keep some reference while programming. It is not just meant for the beginners, but also the most experienced programmers can need it as a reference material. http://amzn.to/1GL50ff
trimantra

How to run .NET 2/3.5 website/webapplication into .NET 4 hosting environment | Trimantr... - 0 views

blog.trimantra.com/into-net-4-hosting-environment

net website webapplication hosting environment blog .NET 2_3.5 website_webapplication 4

shared by trimantra on 02 Jun 15 - No Cached
  • trimantra on 02 Jun 15
     
    It is general requirement that you want to host your ASP.NET 2.0/3.5 website/webapplication onto the hosting server which provide support for .NET Framework 4 but not for .NET Framework 2. At the time of development we normally assume that by default all application should run on .NET Framework 4 because backward compatibility is supported. But sometimes they are not because of new changes into ASP.NET 4.0. Here is the link for your reference: ASP.NET 4 Breaking Changes.
  • trimantra on 02 Jun 15
     
    It is general requirement that you want to host your ASP.NET 2.0/3.5 website/webapplication onto the hosting server which provide support for .NET Framework 4 but not for .NET Framework 2. At the time of development we normally assume that by default all application should run on .NET Framework 4 because backward compatibility is supported. But sometimes they are not because of new changes into ASP.NET 4.0. Here is the link for your reference: ASP.NET 4 Breaking Changes.
Joel Bennett

CSS Cheat Sheet - Cheat Sheets - ILoveJackDaniels.com - 0 views

www.ilovejackdaniels.com/...css-cheat-sheet

css design develop reference web

shared by Joel Bennett on 08 Feb 07 - Cached
  • Joel Bennett on 08 Feb 07
     
    A CSS 2.1 cheat sheet, listing all selectors and properties, plus a visual reference of the box model, as well as references for CSS units, media types, etc.
Daniel Gregoire

Mastering the VI editor - 0 views

www.eng.hawaii.edu/vi.html

vi linux editor unix reference tutorial

shared by Daniel Gregoire on 22 Apr 10 - Cached
  • Daniel Gregoire on 22 Apr 10
     
    Good reference for vi editor.
Fabien Cadet

utf 8 nbsp - RE: nbsp is not that hard, folks ; reply by: Américo Albuquerque... - 0 views

www.stylusstudio.com/...post10350.html

utf8 unicode html entities

shared by Fabien Cadet on 09 Nov 09 - Cached
  • " " " " and "\u00A0" have nothing, NOTHING to do with UTF-8.
  • There is a character -- an abstract unit in a "script" (a writing system; we are using Latin right now) -- called NO-BREAK SPACE by the Unicode Standard and ISO/IEC 10646. Unicode and ISO/IEC 10646 assign this character an integer number, 160, which is A0 in hex.
  • UTF-8 is an encoding scheme that provides a way of representing any of the approximately 1.1 million possible abstract characters in Unicode as a sequence of 1 to 4 bytes.
  • ...8 more annotations...
  • The UTF-8 representation of the Unicode character 160 (no-break space), is the pair of bytes C2 A0, in that order.
  • This thing: \u00A0
  • the no-break space character
  • This thing:   or this thing:  
  • is to SGML applications like HTML and XML what \u00A0 is to Java & Python;
  • is called a character reference (or "numeric character reference").
  • This thing:  
  • is to SGML applications like HTML and XML an "entity reference";
  • Fabien Cadet on 09 Nov 09
     
    « [...] " " " " and "\u00A0" have nothing, NOTHING to do with UTF-8 [...] Unicode and ISO/IEC 10646 assign this character an integer number, 160, which is A0 in hex [...] UTF-8 is an encoding scheme [...] The UTF-8 representation of the Unicode character 160 (no-break space), is the pair of bytes C2 A0. »
iwebservices7

What Is the Future of Cross-Platform App Development? - 0 views

www.i-webservices.com/...cross-platform-app-development

cross platform app development mobile best application company

shared by iwebservices7 on 19 May 21 - No Cached
  • iwebservices7 on 19 May 21
     
    Cross-platform apps have emerged as one of the most popular choices in the world of mobile app development due to the advantages they provide. In the technology-driven world today, there is a strong demand for apps without bugs. Quite naturally, businesses put in their best efforts to satisfy the customers with powerful apps without glitches. With enhanced user experience, businesses can get the opportunity of increasing revenue. Before you move ahead to the future of cross-platform apps, it is essential to understand what they mean for businesses. Cross-platform app development refers to the creation and delivery of mobile apps that can function effortlessly on different platforms, such as iOS and Android. It requires a single codebase to develop cross-platform apps. Among the popularly-known cross-platform apps, Flutter and React Native from Facebook are common among the app developers.
  • iwebservices7 on 19 May 21
     
    Cross-platform apps have emerged as one of the most popular choices in the world of mobile app development due to the advantages they provide. In the technology-driven world today, there is a strong demand for apps without bugs. Quite naturally, businesses put in their best efforts to satisfy the customers with powerful apps without glitches. With enhanced user experience, businesses can get the opportunity of increasing revenue. Before you move ahead to the future of cross-platform apps, it is essential to understand what they mean for businesses. Cross-platform app development refers to the creation and delivery of mobile apps that can function effortlessly on different platforms, such as iOS and Android. It requires a single codebase to develop cross-platform apps. Among the popularly-known cross-platform apps, Flutter and React Native from Facebook are common among the app developers.
lucyll

How to Watch 4K Videos on 4K Blu ray Player? - YouTube - 0 views

www.youtube.com/watch

4k bluray，

shared by lucyll on 10 Apr 17 - No Cached
  • lucyll on 10 Apr 17
     
    Ultra HD, commonly referred to as 4K, has four times the amount of pixels of standard HD. It has twice the horizontal pixels and twice the amount of vertical pixels, resulting in a 3840 x 2160 resolution that makes 4K one of the sharpest formats on the market.There are many ways to watch 4K video, the most popular way is to watch 4k videos by 4K Blu-ray Player. Sometimes,when you play your 4K video on 4K Blu-ray Player,you will find your 4K video can' t be supported by the 4K Blu-ray player. Then how to solve the problem? Just watch this tutorial.
Adam Wills

HTML5 Aside Tag Using Tutorial to Reference Auxiliary Content - 0 views

www.collapsehtml5.wordpress.com/...to-reference-auxiliary-content

html5 tag aside

shared by Adam Wills on 04 Sep 13 - No Cached
  • Adam Wills on 04 Sep 13
     
    To mark some additional information, HTML has recently introduced a new element that allows users to enhance an article; however it is not necessarily key to understand it. The new HTML element Aside () represents a section of a page that contains not only the main content of the page, but also some content that indirectly connected with the main content.
Biztech Consultancy

Some Steps of Convert HTML to WordPress - 0 views

goo.gl/vhsSsS

HTML to WordPress Conversion Convert Static HTML Web Site to Word Press Easiest Way to Convert HTML to WordPress How to Convert HTML to WordPress Conversion static html web site static html

shared by Biztech Consultancy on 07 May 14 - No Cached
  • Biztech Consultancy on 07 May 14
     
    Static Web Site and .html web page on the site and we want to move it to WordPress. Less the number of static pages, less the effort is required to convert. WordPress websites are referred as dynamic and the pages have different ending like .PHP .WordPress. It just takes couple of hours when it comes to changing website content and working with a blog.
Charlie Collett

New Stocks S6400 Heavy Duty Truck-mounted Street Sweeper - 0 views

plus.google.com/...P635Cx4Z46L

Street sweepers

shared by Charlie Collett on 17 Apr 15 - No Cached
  • Charlie Collett on 17 Apr 15
     
    Sweepers Australia street sweeper or street cleaner may refer to either a person's occupation, or a machine that cleans streets.
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