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CppCon 2022 10 Tips for Cleaner C++ 20 Code -- David Sackstein

By Blog Staff | May 23, 2023 06:21 AM | Tags: None

Registration is now open for CppCon 2023! The conference starts on October 1 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting videos of some of the top-rated talks from last year's conference. Here’s another CppCon talk video we hope you will enjoy – and why not register today for CppCon 2023!

10 Tips for Cleaner C++ 20 Code

by David Sackstein

Summary of the talk:

The objective of this session is to provide guidelines and tips that will help the audience write readable, testable and extensible code with modern C++.

One of the greatest challenges we face, as programmers, is to make sure that our code can be understood and used by our colleagues - and not only by the compiler.

As the complexity of C++ increases, the compiler is able to deduce and optimize more of our code, but often at the cost of making it more obscure for our colleagues. Code that is difficult to read is difficult to test, to maintain and to extend.

In the session, I propose to help the audience understand the core problems that we introduce as our programming becomes more advanced, and how we can avoid them. The main part of the session will discuss some fairly complex and advanced C++ code which is difficult to understand. I will then demonstrate 10 easily applicable tips to make it easier to understand and to test. The benefits will be clearly evident.

There will also be a short discussion with the audience to increase the confidence that the guidelines and the tips are readily applicable in their own diverse projects.

More than a rehash – Joaquín M. López in Madrid at Using std::cpp

By Jordi Mon Companys | May 23, 2023 03:35 AM | Tags: community

In this talk, Joaquín will invite you to look under boost::unordered_flat_map's hood with him and learn about this container's data structure, its key design elements and how it compares with other top-performance C++ hashmaps both in theory and in practice.

More than a rehash – Joaquín M. López in Madrid at Using std::cpp
by Joaquín M. López

From the talk:

Boost 1.81 (Dec 2022) released boost::unordered_flat_map, a hashmap (unordered associative container in C++ parlance) that relies on open addressing and SIMD techniques to provide extremely high performance. In this talk, Joaquín will invite you to look under boost::unordered_flat_map's hood with him and learn about this container's data structure, its key design elements and how it compares with other top-performance C++ hashmaps both in theory and in practice. The talk finishes with a teaser on concurrent hashmaps arriving as part of your Boost update later this year. Deck and note can be found here.

CppCon 2022 Can C++ be 10x Simpler > Safer? -- Herb Sutter

By Blog Staff | May 21, 2023 09:46 AM | Tags: None

Can C++ be 10x Simpler & Safer? (Simplifying C++ #9 of N)

by Herb Sutter

Summary of the talk:

Since CppCon 2015, all of Herb’s talks have been about ways to evolve C++ to make it simpler, safer, and more toolable. Every release of ISO C++ has already been making regular incremental “10%” improvements in these areas. But what are the fundamental factors that limit our rate of improvement, and what would it take to make greater progress? Like every year, Herb’s talk will explore selected current pain points and describe experimental ideas to address them that might someday contribute toward C++’s long-term evolution.

CppCon 2022 Best Practices Every C++ Programmer Needs to Follow -- Oz Syed

By Blog Staff | May 18, 2023 03:42 PM | Tags: None

Lightning Talk: Best Practices Every C++ Programmer Needs to Follow

by Oz Syed

Summary of the talk:

In this session, learn some of the best practices that every C++ programmer needs to ensure successful completion of a project. Learn tips and tricks to speed up your workflow, prevent errors and improve performance.

CppCon 2022 C++ in Constrained Environments -- Bjarne Stroustrup

By Blog Staff | May 16, 2023 01:37 PM | Tags: None

C++ in Constrained Environments

by Bjarne Stroustrup

Summary of the talk:

C++ is widely used in constrained and/or critical applications and infrastructure components. How do we manage to use a large multi-purpose language in such environments? How can we better use facilities and techniques from modern C++ (C++11, C++14, C++17, C++20, and beyond)? The best answer is not “use only facilities available in C and C++ in 1985.”

This talk focuses on a top-down approach to achieve simplicity, maintainability, performance, and various forms of safety. It touches upon the C++ Core Guidelines, compile-time computation, type-and-resource safety, type deduction, the span and chrono standard libraries, and error handling.

CppCon 2022 Dependency Injection for Modern C++ -- Tyler Weaver

By Blog Staff | May 11, 2023 03:28 PM | Tags: None

Lightning Talk: Dependency Injection for Modern C++

by Tyler Weaver

Summary of the talk:

DI is a fancy OO term with an even more complex set of tooling to solve a problem that higher order functions solve in a nicer way. In this talk I'll demonstrate using std::function for dependency injection and talk about how taking functions as a parameter is nicer and more first class in C++ than inheritance or complex mocking libraries.

Basic HTTP and WebSocket Programming with Boost.Beast -- Richard Thomson

By Legalize Adulthood | May 11, 2023 11:10 AM | Tags: None

Utah C++ Programmers has released a new video:

Basic HTTP and WebSocket Programming with Boost.Beast

by Richard Thomson

From the video description:

Boost.Beast is a C++ header-only library serving as a foundation for writing interoperable networking libraries by providing low-level HTTP/1, WebSocket, and networking protocol vocabulary types and algorithms using the consistent asynchronous model of Boost.Asio.

This month, Richard Thomson will give us an introduction to Beast and the facilities it provides for HTTP and WebSocket applications. We will look at an example of implementing a REST API for a simple CRUD (Create, Read, Update, Delete) style database. We will revisit the comic book database example we have used in previous REST API presentations.

https://www.youtube.com/watch?v=gVmwrnhkybk

CppCon 2022 How to Win at Coding Interviews -- David Stone

By Blog Staff | May 9, 2023 08:12 AM | Tags: None

Lightning Talk: How to Win at Coding Interviews

by David Stone

Summary of the talk:

5 minutes of preparation is plenty to beat any coding interview.

CppCon 2022 How C++23 Changes the Way We Write Code -- Timur Doumler

By Blog Staff | May 4, 2023 02:20 PM | Tags: None

How C++23 Changes the Way We Write Code

by Timur Doumler

Summary of the talk:

C++20 was a huge release: coroutines, concepts, ranges, and modules profoundly changed the way we write code and think about C++. In comparison, C++23 is a lot smaller in scope: its primary mission is to complete C++20, to fill holes, and to fix issues. Nevertheless, some great new features made the cut this time around, both in the standard library and in the core language. This is even more remarkable considering that the entire feature design phase of C++23 took place during the COVID-19 pandemic, challenging the ISO C++ committee to completely reinvent how we work together.

This is not a firehose talk about C++23 that tries to cram as many additions and improvements as possible into one hour. Instead, we deliberately focus on just a handful of new features that are going to noticeably change and improve the experience of the everyday C++ programmer. We will talk about how `std::expected` improves error handling, the huge impact that `std::mdspan` will have on scientific computing, how deducing `this` greatly simplifies longstanding C++ idioms such as CRTP, and how `std::print` will forever change how we write "Hello, World".

CopperSpice: Docker for Developers

By Ansel Sermersheim | Apr 28, 2023 01:10 PM | Tags: None

New video on the CopperSpice YouTube Channel:

Docker for Developers

by Barbara Geller and Ansel Sermersheim

About the video:

Docker is a container, but what does it actually store? Our new video explains how Docker is beneficial to the development process and not simply a deployment tool. We also discuss the differences between Docker and a VM.

Please take a look and remember to subscribe.