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CppCon 2014 The Implementation of Value Types--Lawrence Crowl

By Adrien Hamelin | Jun 22, 2015 08:00 AM | Tags: efficiency advanced

Have you registered for CppCon 2015 in September? Don’t delay – Early Bird registration is open now.

While we wait for this year’s event, we’re featuring videos of some of the 100+ talks from CppCon 2014 for you to enjoy. Here is today’s feature:

The Implementation of Value Types

by Lawrence Crowl

(watch on YouTube) (watch on Channel 9)

Summary of the talk:

Predefined value types are central to C++ efficiency and robustness. More importantly, C++ provides mechanisms that enable programmers to create high-quality value types, programmers are not limited to the small predefined value types. However, implementing a high-quality type requires attention to several problems, among them portability, representation, efficient copying, efficient parameters, aliasing, constant initialization, and constant expressions. We present the issues and several approaches to implementing high-quality value types.

CppCon 2014 Multiplatform C++--Edouard Alligand

By Adrien Hamelin | Jun 19, 2015 08:00 AM | Tags: advanced

Have you registered for CppCon 2015 in September? Don’t delay – Early Bird registration is open now.

While we wait for this year’s event, we’re featuring videos of some of the 100+ talks from CppCon 2014 for you to enjoy. Here is today’s feature:

Multiplatform C++

by Edouard Alligand

(watch on YouTube) (watch on Channel 9)

Summary of the talk:

C++ is a multiplatform language, yet many difficulties arise when you want the same code to compile properly and function identically on different platforms. If you put aside the obvious system programming related obstacles, and the differences you might have between compilers (especially when it comes to supporting C++11 and C++14), you come to the surprising conclusion that what is truly hard is all the "little things" you didn't anticipate.

This talk will be about our experience with our own software, quasardb, that runs every day on three OS (FreeBSD, Linux and Windows), is built with three compilers (clang, gcc and msvc) and supports two architectures (IA32 and AMD64).

How to build natively the same software on Windows and Linux, provided that they have radically different tool chains? How to work around the subtle, but existing differences between Linux and FreeBSD? How do you solve cross-tools, cross-platform file editing problems? How to prevent your maintenance costs from increasing dramatically?

CppCon 2014 Making C++ Code Beautiful--James McNellis & Kate Gregory

By Adrien Hamelin | Jun 17, 2015 08:00 AM | Tags: intermediate c++14

Have you registered for CppCon 2015 in September? Don’t delay – Early Bird registration is open now.

While we wait for this year’s event, we’re featuring videos of some of the 100+ talks from CppCon 2014 for you to enjoy. Here is today’s feature:

Making C++ Code Beautiful

by James McNellis & Kate Gregory

(watch on YouTube) (watch on Channel 9)

Summary of the talk:

Ask a non-C++ developer what they think of C++ and they'll give the language plenty of compliments: powerful, fast, flexible, and "the language for smart people". But along with that you are likely to hear ugly, complicated, hard to read, and "the language for smart people". Is it possible to write beautiful C++? Not arcanely elegant or wickedly compact, but readable, clear, expressive - beautiful! We say it is, and we want to show you how.

In this session, you'll see how to turn pages of "comic book characters swearing" into code you'll be proud to call your own. By making your code express your intent, using the power of new language and library functionality, and leaving hard-to-read constructs out of your vocabulary, you can give your code a makeover that will stand the test of time.

CppCon 2014 How to call C libraries from C++--Lisa Lippincott

By Adrien Hamelin | Jun 15, 2015 08:00 AM | Tags: intermediate efficiency

Have you registered for CppCon 2015 in September? Don’t delay – Early Bird registration is open now.

While we wait for this year’s event, we’re featuring videos of some of the 100+ talks from CppCon 2014 for you to enjoy. Here is today’s feature:

How to call C libraries from C++

by Lisa Lippincott

(watch on YouTube) (watch on Channel 9)

Summary of the talk:

Many libraries used by C++ programs present C-like interfaces that are compatible with C++, but are not directly compatible with good C++ style. Using these libraries directly is error-prone in many of the ways C++ is designed to avoid. It is better to pass through an interface layer that presents good C++ style on the C++ side.

But writing such an interface layer is daunting. Completing it may be an enormous task, as are documenting it and maintaining it as the underlying library evolves. To address this problem, I will present a style of writing such interfaces that can be used incrementally as needed, and that reduces documentation cost. I will also present a small library that supports the writing of interface layers in this style.

CppCon 2014 Founding C++ User Groups--Jon Kalb & Jens Weller

By Adrien Hamelin | Jun 12, 2015 08:00 AM | Tags: community

Have you registered for CppCon 2015 in September? Don’t delay – Early Bird registration is open now.

While we wait for this year’s event, we’re featuring videos of some of the 100+ talks from CppCon 2014 for you to enjoy. Here is today’s feature:

Founding C++ User Groups

by Jon Kalb & Jens Weller

(watch on YouTube) (watch on Channel 9)

Summary of the talk:

Jens and Jon will share their experiences starting and working with local user groups and C++ conferences. They share some history and pointers on what has worked for them.

If you'd like to start or be active in a local tech group this session will be a good place to start.

CppCast Episode 15: C++ 11/14 Library Best Practices with Niall Douglas

By robwirving | Jun 11, 2015 08:00 AM | Tags: None

Episode 15 of CppCast the only podcast by C++ developers for C++ developers. In this episode Rob and Jason are joined by Niall Douglas to discuss best practices for C++ 11/14 libraries.

CppCast Episode 15: C++ 11/14 Library Best Practices with Niall Douglas

by Rob Irving and Jason Turner

About the interviewee:

Niall Douglas is a consultant for hire, is one of the authors of proposed Boost.AFIO and is currently the primary Google Summer of Code administrator for Boost. He is an Affiliate Researcher with the Waterloo Research Institute for Complexity and Innovation at the University of Waterloo, Canada, and holds postgraduate qualifications in Business Information Systems and Educational and Social Research as well as a second undergraduate degree double majoring in Economics and Management. He has been using Boost since 2002 and was the ISO SC22 (Programming Languages) mirror convenor for the Republic of Ireland 2011-2012. He formerly worked for BlackBerry 2012-2013 in their Platform Development group, and was formerly the Chief Software Architect of the Fuel and Hydraulic Test Benches of the EuroFighter defence aircraft. He is a published author in the field of Economics and Power Relations, is the Social Media Coordinator for the World Economics Association and his particular interest lies in productivity, the causes of productivity and the organisational scaling constraints which inhibit productivity.

Dive into C++14 - [2] - `for_each_argument` explained and expanded -- Vittorio Romeo

By Vittorio Romeo | Jun 10, 2015 01:27 PM | Tags: c++14

Vittorio Romeo covers in his second tutorial a very interesting code snippet originally posted on Twitter by Sean Parent `for_each_argument`.

Dive into C++14 - Part 2

by Vittorio Romeo

About the tutorial:

It shows and explains the usage of C++14 compile-time integer sequences, and analyzes a very interesting iterative implementation of an alternative version of Sean's function that takes the desired arity as a template parameter.

This tutorial video is a reviewed and improved version of my C++Now 2015 lightning talk ("`for_each_arg` explained and expanded").

Some possible use cases for the implemented functions are also shown and analyzed:

  • `make_vector(...)`
  • `forTuple` - iteration over tuple elements
  • `make_unordered_map(...)`

The target audience is people with knowledge of C++11 features and some C++14 experience.

Previous episodes are here: Playlist

CppCon 2014 A Deep Dive into 2 Cross-Platform Mobile Apps Written in C++--T. Grue & S. Kabbes

By Adrien Hamelin | Jun 10, 2015 08:00 AM | Tags: performance efficiency

Have you registered for CppCon 2015 in September? Don’t delay – Early Bird registration is open now.

While we wait for this year’s event, we’re featuring videos of some of the 100+ talks from CppCon 2014 for you to enjoy. Here is today’s feature:

A Deep Dive into 2 Cross-Platform Mobile Apps Written in C++

by T. Grue & S. Kabbes

(watch on YouTube) (watch on Channel 9)

Summary of the talk:

At Dropbox we’ve spent the last year and a half building two cross platform mobile apps: the email client, Mailbox, and the photo gallery, Carousel. We started with the goal of a native look and feel with seamless performance but also needed to leverage a small team to build these apps on multiple platforms. We ultimately accomplished this by using C++ to share significant amounts of code in each app.

We’ll cover what portions of our apps we built in C++ and why we left some portions in the platform languages of Java and Objective-C, deep diving into some of the most important components. We’ll also discuss some unexpected benefits, areas we faced technical and human challenges, and some tips and tricks that you can use to leverage C++ to build very high performance apps.