Core C++ #10 -- Stephan T. Lavavej

By Blog Staff | Nov 18, 2013 04:41 PM | Tags: intermediate basics advanced

Accompanying today's release of the VC++ CTP, there is a new talk by Stephan T. Lavavej available covering several major C++11 and draft C++14 features that are of likely interest to C++ developers using any compiler.

Core C++, 10 of n (Nov 2013 CTP)

by Stephan T. Lavavej

From the summary:

In part 10, STL explores the new features in the Visual C++ Compiler November 2013 CTP (Community Technology Preview), in addition to the features that were added between VC 2013 Preview and RTM.

Features included in the November CTP ( generic lambdas!!! Smiley ):

C++11, C++14, and C++/CX features:

• Implicit move special member function generation (thus also completing =default)
• Reference qualifiers on member functions (a.k.a. "& and && for *this")
• Thread-safe function local static initialization (a.k.a. "magic statics")
• Inheriting constructors
• alignof/alignas
• __func__
• Extended sizeof
• constexpr (except for member functions)
• noexcept (unconditional)
• C++14 decltype(auto)
• C++14 auto function return type deduction
• C++14 generic lambdas (with explicit lambda capture list)
• (Proposed for C++17) Resumable functions and await

Free introductory C++ web course on Tuesday November 19 -- Kate Gregory, James McNellis

By Blog Staff | Nov 12, 2013 10:06 AM | Tags: None

Coming next week on Microsoft Virtual Academy:

C++: A General Purpose Language and Library

by Kate Gregory and James McNellis

Live on November 19, 2013, 9:00am-5:00pm PST (other time zones), later on demand

Cost: Free

With these speakers, we expect a high quality talk. If you're new to C++, or know someone who is and would like to learn about the language, watch and recommend this talk. This event uses the Microsoft Visual Studio environment, but the content is applicable to new C++ developers using any compiler and platform.

From the announcement:

Attention developers: here’s a painless way to learn the basics of C++ from the ground up, whether you’re updating legacy code or writing brand new, efficient, and high-performance code for new platforms like phones and want to take advantage of C++.  You’ll learn the fundamentals of the C++ language, how to use the language and its Standard Library effectively, and how to use the Visual Studio environment for developing C++, including debugging, exploring code, and understanding error messages.  This is your starting point for building software in C++.

COURSE OUTLINE

• Introduction to Programming Concepts
• Getting Started
• The C++ Object Model
• Pointers and Indirection
• RAII – Resource Acquisition is Initialization
• The C++ Standard Library (STL)

INSTRUCTOR TEAM

Kate Gregory | Partner, Gregory Consulting Limited | @gregcons

Kate Gregory is a C++ expert who has been using C++ since before Microsoft had a C++ compiler, an early adopter of many software technologies and tools, and a well-connected member of the software development community. She has over three decades of scientific and engineering programming experience in a variety of programming languages. Since January 2002 she has been Microsoft Regional Director for Toronto and since January 2004 she has been awarded the Microsoft Most Valuable Professional designation for Visual C++. In June 2005 she won the Regional Director of the year award, and she was one of the C++ MVPs of the year for 2010.
Kate is the author of over a dozen books, mostly on C++ programming; the latest, on massively parallel programming with C++ AMP, was published in fall 2012 by Microsoft Press. Her firm, Gregory Consulting Limited, is based in rural Ontario and helps clients adopt new technologies and adjust to the changing business environment. Managing, mentoring, technical writing, and technical speaking occupy much of her time, but she still writes code every week.

James McNellis | Microsoft Senior Software Development Engineer | @JamesMcNellis

James McNellis is a computer programmer and C++ maven. A senior engineer on the Microsoft Visual C++ team, James builds modern C++ libraries and is the maintainer of the Visual C++, C Runtime (CRT), and C Standard Library implementation. He was previously a member of the Microsoft Expression Blend team, developing the XAML designer tools for Windows 8 apps. Prior to joining Microsoft in 2010, he spent several years working on real-time 3-D simulation and robotics projects in the defense industry. James is a prolific contributor on the Stack Overflow programming Q&A website and writes for the Visual C++ Team Blog.

New Adventures in C++ with Cinder and More -- Ale Contenti

By NoSenseEtAl | Oct 31, 2013 08:15 AM | Tags: intermediate

The Cinder C++ library for graphics got a shout-out from Herb Sutter at GoingNative'13, and now we get a full hour-long talk about Cinder from Visual Studio's own Ale Contenti.

New Adventures in C++ with Cinder and More

Play and be productive with modern C++, graphics, on-the-fly projects and more! Starting from the latest Going Native 2013 talks as an inspiration, we will explore how easy is to mold ideas into graphics apps with C++ and Cinder, and how simple tools and techniques can help us be more productive in Visual Studio!

Watch the video, or download the slides.

Effective GoF Patterns with C++11 and Boost -- Tobias Darm

By Blog Staff | Oct 9, 2013 08:54 AM | Tags: intermediate boost

Speaking of ACCU 2014, here's an excellent talk from ACCU 2013 showing how C++11 (by itself, and/or with Boost) makes expressing many common design patterns far simpler than using traditional pre-C++11 tools. In fat, are there cases where the design patterns even disappear entirely? Watch to find out.

Effective GoF Patterns with C++11 and Boost (slides)

by Tobias Darm

Abstract and bio:

Tobias Darm discusses how some of the GoF patterns can be implemented differently in C++11 using Boost libraries.

Tobias Darm is working with C++ and programming embedded devices used in an intensive care environment at Dräger medical. He likes to learn and teach about software development and does tutorials and workshops in his company encouraging a modern programming style.

GoingNative 2013 videos now available

By Blog Staff | Sep 12, 2013 08:26 AM | Tags: None

The videos from last week's GoingNative 2013 are now posted and available for on-demand viewing on Channel 9. Over 20 hours of live presentations cover everything from the latest in the language and the standard library, to C++'s evolution and momentum across the industry, to style guidance and the latest in C++11/14 features, to the optimizer and code generation for modern processors like Haswell, to experience in specific domains and platforms, and more.

GN'13 was a huge success thanks to Channel 9 and all the speakers, including headliner Bjarne Stroustrup and esteemed speakers Sean Parent, Andrei Alexandrescu, Stephan T. Lavavej, Jim Radigan, Herb Sutter, Scott Meyers, Michael Wong, Chandler Carruth, Ales Holecek, Elliot Omiya, Deon Brewis, Niklas Gustafsson, Eric Brumer, and Garrett Serack. Thanks to everyone who came to present and participate in this year's event.

The GN folks and others are working hard on next year. Stay tuned for more information in the months ahead. In the meantime, enjoy this material and be sure to share the ones you find most interesting and useful with your friends and colleagues.

GoingNative will be livestreamed this week: Sep 4-6

By Blog Staff | Sep 1, 2013 03:23 PM | Tags: None

The GoingNative 2013 conference starts Wednesday and is just about sold out. A few seats remain, so register now (or get on the waitlist in case there's a last-minute cancellation you can snag).

It's decidedly desirable to be physically in the room to get the full experience, and hundreds of people from over 10 countries are already on their way. But if you can't come in person to Redmond, WA, USA for this week's C++ fest, you'll be glad to know the talks will be livestreamed as well on the Channel 9 homepage. The streaming is compatible with all major platforms. For those of you around the world, please note that the talk times are in North American Pacific Daylight Time.

Talks include the following, including both full-length talks and a number of 20- and 30-minute "nuggets."

Day 1: Wed Sep 4

• Opening Keynote: The Essence of C++ -- With Examples in C++84, C++98, C++11, and C++14 (Bjarne Stroustrup)
• C++ Seasoning (Sean Parent)
• Writing Quick Code in C++, Quickly (Andrei Alexandrescu)
• Don’t Help the Compiler (Stephan T. Lavavej)
• Compiler++ (Jim Radigan)

Day 2: Thu Sep 5

• Day 2 Keynote: One C++ (Herb Sutter)
• rand() Considered Harmful (Stephan T. Lavavej)
• An Effective C++11/14 Sampler (Scott Meyers)
• C++14: Through the Looking Glass (Michael Wong)
• The Care and Feeding of C++’s Dragons (Chandler Carruth)
• Interactive Panel: Ask Us Anything! (speakers)

Day 3: Fri Sep 6

• Everything You Always Wanted to Know About Threading (But...) (Elliot H. Omiya)
• The Way of the Exploding Tuple (Andrei Alexandrescu)
• To Move or Not to Move: That is the Question (Michael Wong)
• Bringing await to C++ (Deon Brewis)
• A C++ REST SDK: OSS web services on Windows and Linux (Niklas Gustafsson)
• Compiler Confidential (Eric Brumer)
• Find-Build-Share-Use: Using NuGet for C and C++ Libraries (Garrett Serack)
• My Favorite C++ 10-Liner (Herb Sutter)

The Future Is Here: C++11 -- Bjarne Stroustrup

By Blog Staff | Aug 29, 2013 11:46 AM | Tags: None

Prof. Stroustrup spoke at A9 last week on "The Future is Here: C++11." The video is now available on YouTube:

The Future Is Here: C++11

Special Guest Lecture by C++ Inventor Bjarne Stroustrup

Bjarne Stroustrup segment from 2013 ACM-ICPC World Championships

By Blog Staff | Aug 7, 2013 07:08 AM | Tags: None

Bjarne Stroustrup spoke at this summer's ACM International Collegiate Programming Contest World Finals held in St. Petersburg, Russia. While there, he also gave this 8-minute interview in the context of balancing efficient code with the out-of-the-box problem solving required by ICPC problem challenges.

2013 ICPC Bjarne Stroustrup

C++ inventor Bjarne Stroustrup discusses the relationship of programming languages and competition and the benefit of participating in events such as the ACM-ICPC.

Expression Templates -- Volker Krause

By Blog Staff | Jul 28, 2013 10:29 AM | Tags: advanced

From this month's KDE Akademy conference:

Expression Templates: How I Learned to Stop Worrying and Love Template Meta-Programming (30 min video) (slides)

by Volker Krause

The speaker's opening words should be enough to get you to set aside a half hour:

"I'm going to talk about template metaprogramming in general and expression templates in particular. And that's obviously something we use every day. <laughter> You laugh, but in half an hour you will see that we actually do..."

Abstract:

Contrary to common perception, expression templates are not bizarre meta-programming theory but something you are (possibly unknowingly) using every day. We'll see what they are good for, how they work and and what to do if they don't.

Originally invented by Todd Veldhuizen for the use in the math library Blitz++, expression templates are often seen as one of those esoteric applications of C++ template meta-programming that results in completely incomprehensible code that only Marc and Thiago understand at best, and that gives you compiler errors longer than an average discussion on the right display manager.

In this talk we will try to counter this (wrong) perception, by looking at why and how this (syntactically) indeed somewhat complex code results in very elegant API and often outperforms conventional implementations. On the way we will see that C++ template meta-programming code is actually not that scary, and that template-related compiler errors aren't that bad either.

Now why would this be of interest to the average Qt or KDE developer? Well, since the introduction of QStringBuilder in Qt 4.7 we have expression templates for a very common use case, string concatenations. And if your code is somewhere in KDE Git, it's very likely Laurent enabled the use of QStringBuilder for you already. So, we are not talking about exotic theory here, but about tools you are using every day.

The Universal Reference/Overloading Collision Conundrum -- Scott Meyers

By NoSenseEtAl | Jul 24, 2013 07:22 AM | Tags: intermediate

[Blog suggestion by NoSenseEtAl. Text below added by editor.]

Scott Meyers gave a well-received "beta" talk last week at NWCPP on the topic below, which he described as the most complex Item he's encountered as he prepares his upcoming book Effective C++11/14:

The Universal Reference/Overloading Collision Conundrum

by Scott Meyers

Abstract:

To help address the confusion that arises when rvalue references become lvalue references through reference collapsing, Scott Meyers introduced the notion of "universal references." In this presentation, he builds on this foundation by explaining that overloading functions on rvalue references is sensible and useful, while seemingly similar overloading on universal references yields confusing, unhelpful behavior. But what do you do when you want to write a perfect forwarding function (which requires universal references), yet you want to customize its behavior for certain types? If overloading is off the table, what's on? In this talk, Scott surveys a variety of options.

Though Scott will give a one-slide overview of the idea behind universal references at the beginning of the presentation, attendees are encouraged to familiarize themselves with the notion in more detail prior to the talk. Links to written and video introductions to universal references are available here.