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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)

 

Bjarne Stroustrup segment from 2013 ACM-ICPC World Championships

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

stroustrup-icpc13.PNGicpc-2013.pngBjarne 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

volker-krause.jpgFrom 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

meyers-nwcpp-13.PNG[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.

Efficient Programming with Components -- Alexander Stepanov

By Mantosh Kumar | Jun 23, 2013 01:56 PM | Tags: stepanov performance intermediate efficiency components advanced

stepanov-components.PNGA wonderful video series by the inventor of the Standard Template Library (STL).

Video Series: Efficient Programming with Components

by Alexander Stepanov

Performance is essential for infrastructure software. Modern infrastructure software depends heavily on components. Therefore, writing performant code in this environment requires deep understanding of the characteristics of such components. The course will help programmers to improve performance of their code by learning how to use these existing generic components effectively. In addition, it will teach them to extend the library with new high-performance components. Along the way, participants will learn how to use C++ as a high-performance language.The course will be taught interactively with the class discussing, discovering, and developing components together.

Code is available here.

 

 

 

Scaling with C++11 -- Edouard Alligand

By Blog Staff | Jun 23, 2013 10:04 AM | Tags: scalability parallel intermediate cores advanced

cppnow13-alligand.PNGFrom the recent BoostCon/C++Now event. If you missed it there, check it out online. An updated version of this talk is also slated for the upcoming Meeting C++ this fall if you want to catch it in person.

Scaling with C++11

Edouard Alligand

As the number of cores per processor increases, software needs to be able to execute multiple tasks in parallel in order to benefit from Moore's law. This is not only a question of writing parallel algorithms, but also a matter of designing the application properly to reduce inter-thread dependencies. These dependencies may be very hard to find and are the results of decades of serial programming. Thus, writing truly scalable software is less a question of technical expertise than adopting the appropriate state of mind.

This presentation is about the design, techniques and tools used by the team who wrote the hyperscalable database "quasardb." Building upon concrete scalability challenges, the presenter will expose typical multithreading anti-patterns and how to avoid them. The topics covered include: atomics, micro locks, lock-free and wait-free containers, memory management strategies (copy on write, smart pointers, perfect forwarding...), thread local storage, asynchronous I/O, and much more!

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

By Blog Staff | Jun 17, 2013 08:41 AM | Tags: None

stroustrup-accu2013.PNGStroustrup's ACCU keynote video is now available online.

C++11: The Future Is Here

Bjarne Stroustrup

Summary: Bjarne Stroustrup keynotes on what C++ is in general, how C++11 makes simple things even simpler, resource management, generic programming, and concurrency.

Core C++, 8 and 9: From do-while to variadic array sorter to lambdas -- Stephan T. Lavavej

By Blog Staff | Jun 11, 2013 09:38 AM | Tags: intermediate advanced

core-8-9.PNGThe two latest C++ lectures by Stephan T. Lavavej, the eponymous STL, are now available:

Core C++, 8 of n

In part 8, STL digs into the do-while loop, casts, one definition rule (ODR), and his variadic template array sorter. There is a lot of information in this episode, so get comfortable, tune in, and learn.

Core C++, 9 of n

In part 9, STL digs into lambdas and other expressions. Lambdas are very useful and you've no doubt been enjoying them in your modern C++ programming. As you can imagine, STL will go deep and teach you things about lambdas that you may not know. You'll also learn a lot about order of precedence and associativity for expressions in only the way Stephan can teach you (thorough treatment). Tune in.