Cppcon: Instructor Interview: Mateusz Pusz / C++ Concepts

By Adrien Hamelin | Sep 3, 2020 11:56 AM | Tags: community

The future.

Instructor Interview: Mateusz Pusz / C++ Concepts

Summary of the video:

In this week’s instructor interview, Kevin Carpenter welcomes Mat Pusz for a discussion of his CppCon Academy class, C++ Concepts: Constraining C++ Templates in C++20 and Before. Mat quickly demonstrates the power and importance of constraining types when calling functions. His class will cover how to do this with the new concepts feature in C++20 and also how to do it if you are not yet using C++20.

CppCon 2019: Non-conforming C++: the Secrets the Committee Is Hiding From You--Miro Knejp

By Adrien Hamelin | Sep 2, 2020 12:53 PM | Tags: community

This year, CppCon 2020 is going virtual. The dates are still the same – September 14-18 – and we are aiming for the CppCon live event to have pretty much everything you’re familiar with at CppCon except moved online: multiple tracks including “back to basics” and a new “embedded” track; live speaker Q&A; live talk time zones friendly to Americas and EMEA (and we’re going to try to arrange around-the-clock recorded repeats in all time zones, where speakers who are available can be available for live Q&A in their repeated talks too, and we’ll do that if it’s possible – but we’re still working on it!); virtual tables where you can interact face-to-face online with other attendees just like at the physical event; virtual exhibitor spaces where you can meet the folks on your favorite product’s teams to ask them question face-to-face; pre- and post-conference classes; and even the CppCon house band playing live before every plenary session. All talk recordings will be freely available as usual on YouTube a month or two after the event, but everything else above will be available only live during CppCon week.

To whet your appetite for this year’s conference, here’s another of the top-rated talks from last year. Enjoy – and register today for CppCon 2020 – all the spirit and flavor of CppCon, this year all virtual and online!

Non-conforming C++: the Secrets the Committee Is Hiding From You

by Miro Knejp

Summary of the talk:

These days everyone talks about conforming and portable C++. Compiler vendors celebrate increasing conformance. Committee agents blind us with new shiny toys coming to the language. But there is a darker side to C++. A C++ you are not supposed to know about.

What if I told you there was more to C++ than what the agents of The Committee want us to believe? Over decades programmers all around the world have added features to the language in form of compiler extensions that let us do even greater things. Some are completely new, and some are lifted from C to C++ to allow some interesting, and sometimes more efficient, application.

We will see how statements can become expressions, how "goto" with extra superpowers can make your programs faster, and why there exists an operator named after a famous rock star. These are just a few examples of what to expect as listing any more would draw unwanted attention from The Committee. Unfortunately, because these extensions are not part of ISO C++, using any of them comes at the expense of portability. Or does it?

Cppcon: Instructor Interview: Phil Nash / Accelerated Test Driven Design

By Adrien Hamelin | Sep 1, 2020 11:17 AM | Tags: community

Another interesting interview.

Instructor Interview: Phil Nash / Accelerated Test Driven Design

Summary of the video:

In this week’s instructor interview, Kevin Carpenter welcomes Phil Nash for a discussion of his CppCon Academy class, Accelerated TDD: For More Productive C++ . Phil shares the origin story of Catch, the popular testing framework that he authored to support better testing in C++. Kevin has taken a previous CppCon Academy class on testing with Phil. Phil explains that he focuses less on what TDD is (which can be explained in five minutes using one slide) and more on how to apply and get the benefits of TDD in real-world code bases.

Write cleaner, safer, modern C++ code with SonarQube

By ganncamp | Sep 1, 2020 07:15 AM | Tags: None

SonarSource will present a 30min webinar Wednesday, Sept 2 at 15:00 GMT to show how you can use SonarQube and SonarLint static analysis to write better C++. Even if you can't attend, sign up and we'll send you a link to the recording afterward.

Write cleaner, safer, modern C++ code with SonarQube

by SonarQube

From the announcement:

As a C++ Developer, you know that writing clean, secure, modern C++ code is important for you and your users. At SonarSource, we know that only developers can truly impact Code Quality and Security, so we put the power in your hands.

SonarQube makes C++ development easier with static code analysis that's powerful, fast, and accurate - right out of the box. Analysis is easy to integrate into your workflow and works with most common compilers, including many for embedded systems. Come see for yourself how you can make your C++ projects more reliable and secure.

CppCon 2019: std::midpoint? How Hard Could it Be?--Marshall Clow

By Adrien Hamelin | Aug 31, 2020 11:59 AM | Tags: community

This year, CppCon 2020 is going virtual. The dates are still the same – September 14-18 – and we are aiming for the CppCon live event to have pretty much everything you’re familiar with at CppCon except moved online: multiple tracks including “back to basics” and a new “embedded” track; live speaker Q&A; live talk time zones friendly to Americas and EMEA (and we’re going to try to arrange around-the-clock recorded repeats in all time zones, where speakers who are available can be available for live Q&A in their repeated talks too, and we’ll do that if it’s possible – but we’re still working on it!); virtual tables where you can interact face-to-face online with other attendees just like at the physical event; virtual exhibitor spaces where you can meet the folks on your favorite product’s teams to ask them question face-to-face; pre- and post-conference classes; and even the CppCon house band playing live before every plenary session. All talk recordings will be freely available as usual on YouTube a month or two after the event, but everything else above will be available only live during CppCon week.

To whet your appetite for this year’s conference, here’s another of the top-rated talks from last year. Enjoy – and register today for CppCon 2020 – all the spirit and flavor of CppCon, this year all virtual and online!

std::midpoint? How Hard Could it Be?

by Marshall Clow

Summary of the talk:

The standards committee adopted "P0811: Well-behaved interpolation for numbers and pointers" for C++20.
It includes a new library call `std::midpoint`.
The paper says "The simple problem of computing a value between two other values is surprisingly subtle in general."

In this talk, I will explore this simple call, provide a history of the development in libc++, and show some of the pitfalls.
Undefined behavior will rear its ugly head, along with numeric representations, and the arcane C promotion rules.

Along the way, we'll talk about testing, and why writing extensive tests helps everyone.

CppCon 2019: Path Tracing Three Ways: A Study of C++ Style--Matt Godbolt

By Adrien Hamelin | Aug 24, 2020 01:04 PM | Tags: community

This year, CppCon 2020 is going virtual. The dates are still the same – September 14-18 – and we are aiming for the CppCon live event to have pretty much everything you’re familiar with at CppCon except moved online: multiple tracks including “back to basics” and a new “embedded” track; live speaker Q&A; live talk time zones friendly to Americas and EMEA (and we’re going to try to arrange around-the-clock recorded repeats in all time zones, where speakers who are available can be available for live Q&A in their repeated talks too, and we’ll do that if it’s possible – but we’re still working on it!); virtual tables where you can interact face-to-face online with other attendees just like at the physical event; virtual exhibitor spaces where you can meet the folks on your favorite product’s teams to ask them question face-to-face; pre- and post-conference classes; and even the CppCon house band playing live before every plenary session. All talk recordings will be freely available as usual on YouTube a month or two after the event, but everything else above will be available only live during CppCon week.

To whet your appetite for this year’s conference, here’s another of the top-rated talks from last year. Enjoy – and register today for CppCon 2020 – all the spirit and flavor of CppCon, this year all virtual and online!

Path Tracing Three Ways: A Study of C++ Style

by Matt Godbolt

Summary of the talk:

C++ is a multi-paradigm language allowing us as developers to pick and choose among a variety of styles: procedural, functional, object oriented, hybrids, and more. How does the style of programming we choose affect code clarity, testability, ease of changes, compile time and run-time performance?

In this talk Matt will show a toy path tracer project (a form of ray tracer) implemented in three different styles: traditional object oriented, functional, and data-oriented design. He'll then compare and contrast his experiences developing in each case, showing how often the compiler is able to reduce each style to similar performing code. There's certain to be some surprises - and of course some Compiler Explorer usage!

CppCon 2019: Speed Is Found In The Minds of People--Andrei Alexandrescu

By Adrien Hamelin | Aug 21, 2020 01:41 PM | Tags: community

This year, CppCon 2020 is going virtual. The dates are still the same – September 14-18 – and we are aiming for the CppCon live event to have pretty much everything you’re familiar with at CppCon except moved online: multiple tracks including “back to basics” and a new “embedded” track; live speaker Q&A; live talk time zones friendly to Americas and EMEA (and we’re going to try to arrange around-the-clock recorded repeats in all time zones, where speakers who are available can be available for live Q&A in their repeated talks too, and we’ll do that if it’s possible – but we’re still working on it!); virtual tables where you can interact face-to-face online with other attendees just like at the physical event; virtual exhibitor spaces where you can meet the folks on your favorite product’s teams to ask them question face-to-face; pre- and post-conference classes; and even the CppCon house band playing live before every plenary session. All talk recordings will be freely available as usual on YouTube a month or two after the event, but everything else above will be available only live during CppCon week.

To whet your appetite for this year’s conference, here’s another of the top-rated talks from last year. Enjoy – and register today for CppCon 2020 – all the spirit and flavor of CppCon, this year all virtual and online!

Speed Is Found In The Minds of People

by Andrei Alexandrescu

Summary of the talk:

In all likelihood, sorting is one of the most researched classes of algorithms. It is a fundamental task in Computer Science, both on its own and as a step in other algorithms. Efficient algorithms for sorting and searching are now taught in core undergraduate classes. Are they at their best, or is there more blood to squeeze from that stone? This talk will explore a few less known – but more allegro! – variants of classic sorting algorithms. And as they say, the road matters more than the destination. Along the way, we'll encounter many wondrous surprises and we'll learn how to cope with the puzzling behavior of modern complex architectures.

Cppcon: Instructor Interview: Klaus Iglberger / Modern C++ Design Patterns

By Adrien Hamelin | Aug 21, 2020 01:35 PM | Tags: community

A new interesting interview.

Instructor Interview: Klaus Iglberger / Modern C++ Design Patterns

From the video:

In this week’s instructor interview, Kevin Carpenter welcomes Klaus Iglberger for a discussion of his CppCon Academy class, Modern C++ Design Patterns. Kevin took this class with Klaus last year and they discuss how Klaus has adapted it for online instruction. Klaus also outlines the additions and improvement to last year’s presentation. Kevin shares how his codebase has incorporated the Design Patterns that are covered in the class...

CppCon 2019: C++ Code Smells--Jason Turner

By Adrien Hamelin | Aug 19, 2020 02:24 PM | Tags: community

This year, CppCon 2020 is going virtual. The dates are still the same – September 14-18 – and we are aiming for the CppCon live event to have pretty much everything you’re familiar with at CppCon except moved online: multiple tracks including “back to basics” and a new “embedded” track; live speaker Q&A; live talk time zones friendly to Americas and EMEA (and we’re going to try to arrange around-the-clock recorded repeats in all time zones, where speakers who are available can be available for live Q&A in their repeated talks too, and we’ll do that if it’s possible – but we’re still working on it!); virtual tables where you can interact face-to-face online with other attendees just like at the physical event; virtual exhibitor spaces where you can meet the folks on your favorite product’s teams to ask them question face-to-face; pre- and post-conference classes; and even the CppCon house band playing live before every plenary session. All talk recordings will be freely available as usual on YouTube a month or two after the event, but everything else above will be available only live during CppCon week.

To whet your appetite for this year’s conference, here’s another of the top-rated talks from last year. Enjoy – and register today for CppCon 2020 – all the spirit and flavor of CppCon, this year all virtual and online!

C++ Code Smells

by Jason Turner

Summary of the talk:

There are a lot of rules to remember for writing good C++. Which features to use? Which to avoid? The C++ Core Guidelines would be over 500 pages long if you were to try to print it! What happens if we swap this around and instead of Best Practices look at Code Smells. Coding decisions that should make you think twice and reconsider what you are doing.

We will ask:

* What are the most important code smells?
* Does it simplify the way we write code?

CopperSpice: Time Complexity

By Ansel Sermersheim | Aug 18, 2020 11:54 AM | Tags: None

New video on the CopperSpice YouTube Channel:

Time Complexity

by Barbara Geller and Ansel Sermersheim

About the video:

In this video we investigate the topic of time complexity, explain a little of the mathematical background, and show its practical applications to C++ programming. We talk about some of the common time complexity notations, and which algorithms you should choose based on their time complexity properties.

Please take a look and remember to subscribe!