CppCon 2017 Keynote Speakers by Jon Kalb

By Blog Staff | Jun 13, 2017 11:01 AM | Tags: None

CppCon 2017 just announced its keynote and plenary speakers:

2017 Keynote Speakers

by Jon Kalb

Early bird registration ends on July 7... register today!

From the announcement:

Bjarne Stroustrup

Bjarne is the designer and original implementor of C++. He is a founding member of the ISO C++ standards committee for C++ and a major contributor to modern C++.

He is the author of The C++ Programming Language and Programming: Principles and Practice Using C++.

Bjarne is currently a Managing Director in the technology division of Morgan Stanley in New York City and a Visiting Professor in Computer Science at Columbia University.

Herb Sutter

Herb is the convener (chair) of the ISO C++ standards committee.

He is the best-selling author of hundreds of articles and several books including  Exceptional C++  and C++ Coding Standards.

Herb is currently focused on evolving C++ to make it both more powerful and simpler — able to express more in efficient, portable code without relying on proprietary extensions, while also removing needless ceremony and ‘dark corners.’

Lars Knoll

Lars is The Qt Company CTO and Qt Project Chief Maintainer.

He has been working on Qt for more than 17 years starting as a software engineer to later leading the global Qt engineering team in Nokia before the Digia acquisition in October 2012. Lars has been an active member of the KDE community and the architect behind KDE’s HTML rendering library that formed the basis for the WebKit open source project.

Lars holds a PhD in physics from the University of Heidelberg. He is a German national and lives with his family in Oslo.

Matt Godbolt

Matt’s Compiler Explorer project has made his last name both a noun and a verb.

He has been programming for nearly two decades on games, system design, and real-time embedded systems from 8-bit computers up to cutting edge technology on next-generation games consoles.

Matt is currently at DRW in Chicago where he works on cool and exciting secret things.

And 100 more…

These four, and a hundred other C++ experts will be presenting the latest thinking and best practices this September at CppCon. Don’t miss it..

CppCon 2016: Practical Performance Practices--Jason Turner

By Adrien Hamelin | Jun 12, 2017 02:09 PM | Tags: performance community

Have you registered for CppCon 2017 in September? Don’t delay – Registration is open now.

While we wait for this year’s event, we’re featuring videos of some of the 100+ talks from CppCon 2016 for you to enjoy. Here is today’s feature:

Practical Performance Practices

by Jason Turner

(watch on YouTube) (watch on Channel 9)

Summary of the talk:

In the past 6 years ChaiScript's performance has been improved by nearly 100x. This was not accomplished by adding a virtual machine or performing dynamic recompilation. Instead, these increases have been accomplished by moving to more simple, cleaner, idiomatic C++ and by following some simple rules. We will outline these concepts with examples for how they both simplified code while improving performance.

C++ Weekly Episode 67: C++17's std::gcd and std::lcm—Jason Turner

By Jason Turner | Jun 12, 2017 12:08 PM | Tags: c++17 basics

Episode 67 of C++ Weekly.

C++17's std::gcd and std::lcm

by Jason Turner

About the show:

In this episode Jason explores the new std::gcd and std::lcm functions that have been added in C++17.

There Is A New Future -- Felix Petriconi

By Felix Petriconi | Jun 10, 2017 01:11 PM | Tags: performance efficiency concurrency c++14

Version 1.0 of a new C++ future and channel library has been released.

There Is A New Future

by Sean Parent, Foster Brereton and Felix Petriconi

About the library:

This library provides high level abstractions for implementing algorithms that eases the use of multiple CPU cores while minimizing the contention.

The future implementaton differs in several aspects compared to the C++11/14/17 standard futures: It provides continuations and joins, which were just added in a C++17 TS. But more important this futures propagate values through the graph and not futures. This allows an easy way of creating splits. That means a single future can have multiple continuations into different directions. An other important difference is that the futures support cancellation. So if one is not anymore interested in the result of a future, then one can destroy the future without the need to wait until the future is fullfilled, as it is the case with std::future (and boost::future). An already started future will run until its end, but will not trigger any continuation. So in all these cases, all chained continuations will never be triggered. Additionally the future interface is designed in a way, that one can use build in or custom build executors.

Since one can create with futures only graphs for single use, this library provides as well channels. With these channels one can build graphs, that can be used for multiple invocations.

CppCast Episode 104: Postmodern C++ with Tony Van Eerd

By robwirving | Jun 9, 2017 05:57 PM | Tags: None

Episode 104 of CppCast the only podcast for C++ developers by C++ developers. In this episode Rob and Jason are joined by Tony Van Eerd to talk about his recent award winning C++Now talk on Postmodern C++ and his views on lock-free programming.

CppCast Episode 104: Postmodern C++ with Tony Van Eerd

by Rob Irving and Jason Turner

About the interviewee:

Tony Van Eerd has been coding for well over 25 years, and hopefully coding well for some of that. Mostly in graphics/video/film/broadcast (at Inscriber & Adobe), writing low level pixel++, high level UI, threading, and everything else. He now enables painting with light at Christie Digital. He is on the C++ Committee. He is a Ninja and a Jedi.

CppCon 2016: STL Algorithms - why you should use them, and how to write your own--Marshall Clow

By Adrien Hamelin | Jun 9, 2017 12:09 PM | Tags: community c++11

Have you registered for CppCon 2017 in September? Don’t delay – Registration is open now.

While we wait for this year’s event, we’re featuring videos of some of the 100+ talks from CppCon 2016 for you to enjoy. Here is today’s feature:

STL Algorithms - why you should use them, and how to write your own

by Marshall Clow

(watch on YouTube) (watch on Channel 9)

Summary of the talk:

One of the most powerful features of the C++ standard library is the collection of basic algorithms. Everyone knows about sort and copy, but there are is a lot of powerful capabilities in the other algorithms as well. In this talk, I will explore some of the algorithms in the library, and give a rationale for writing your own, along with examples.

The motivation for writing your own algorithms is that you can create generic building blocks that can be used over and over again in your library or application, and which will allow your to program at a higher level of abstraction. Instead of thinking, "how do I sort this vector", you just call std::sort. The same should apply to the algorithms that are specific to your domain - once you write them.

CppCon 2016: High Performance Code 201: Hybrid Data Structures--Chandler Carruth

By Adrien Hamelin | Jun 7, 2017 08:00 AM | Tags: None

Have you registered for CppCon 2017 in September? Don’t delay – Registration is open now.

While we wait for this year’s event, we’re featuring videos of some of the 100+ talks from CppCon 2016 for you to enjoy. Here is today’s feature:

High Performance Code 201: Hybrid Data Structures

by Chandler Carruth

(watch on YouTube) (watch on Channel 9)

Summary of the talk:

Modern programs’ performance characteristics are often dictated by their data. Whether the cache locality of data access, the size of working set, or avoiding costly memory allocation overhead. Unfortunately, the standard C++ library data structures range from adequate to terrible at controlling these aspects, and they don’t provide any of the core mechanisms needed for extremely efficient data structure design.

This talk will present the core concepts of designing high performance data structures in C++. It is based on years of experience in the LLVM compiler as well as several other large code bases. From these principles, the talk will propose a suite of data structures that provide performance without loss of generality or functionality. As much as this talk will present specific data structure designs, its primary intent will be to give an understanding of what makes these structures have greater performance than more naive approaches.

C++ Weekly Episode 66: Variadic fmin in C++11—Jason Turner

By Jason Turner | Jun 5, 2017 06:27 AM | Tags: intermediate c++17 c++11

Episode 66 of C++ Weekly.

Variadic fmin in C++11

by Jason Turner

About the show:

This episode demonstrates how fold expressions can be emulated in C++11 by back porting episode 65's C++17 variadic fmin to C++11. 

Quick Q: When is an rvalue evaluated?

By Adrien Hamelin | Jun 2, 2017 01:09 PM | Tags: intermediate c++11

Quick A: When it is assigned.

Recently on SO:

When is an rvalue evaluated?

s2 binds to the expression s1 + s1, but is this evaluated at the time s2 is assigned

Yes.

And also would s2 hold memory for a temporary string?

Precisely, s2 is bound to a temporary std::string.

s1 + s1 will produce a temporary std::string, which will be bound to the reference s2 (and its lifetime is extended to the lifetime of the reference). Then s2 += "Test";, performs operator+=() on  s2, i.e. the temporary std::string.

CppCon 2016: Garbage In, Garbage Out: Arguing about Undefined Behavior...--Chandler Carruth

By Adrien Hamelin | Jun 2, 2017 12:59 PM | Tags: community advanced

Have you registered for CppCon 2017 in September? Don’t delay – Registration is open now.

While we wait for this year’s event, we’re featuring videos of some of the 100+ talks from CppCon 2016 for you to enjoy. Here is today’s feature:

Garbage In, Garbage Out: Arguing about Undefined Behavior...

by Chandler Carruth

(watch on YouTube) (watch on Channel 9)

Summary of the talk:

There has been an overwhelming amount of tension in the programming world over the last year due to something that has become an expletive, a cursed and despised term, both obscene and profane: **undefined behavior**. All too often, this issue and the discussions surrounding it descend into unproductive territory without actually resolving anything.

In this talk, I'm going to try something very bold. I will try to utterly and completely do away with the use of the term "undefined behavior" in these discussions. And I will unquestionably fail. But in the process of failing, I will outline a framework for understanding the actual root issues that the software industry faces here, and try to give constructive and clear paths forward, both for programmers and the programming language.

And, with luck, I will avoid being joined on stage by any unruly nasal demons.