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Video & On-Demand

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

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

Stone-codinginterviews.pngRegistration 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!

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

Cpp22-Doumler.pngRegistration 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!

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.

TCP/IP Networking with Boost.Asio -- Richard Thomson

By Legalize Adulthood | Apr 13, 2023 01:03 PM | Tags: None

Utah C++ Programmers has released a new video:

TCP/IP Networking with Boost.Asio

by Richard Thomson

From the video description:

Boost.Asio is a cross-platform C++ library for network and low-level I/O programming that provides developers with a consistent asynchronous model using a modern C++ approach.

This month, Richard Thomson will continue our look at Boost.Asio with a look at TCP/IP networking. We'll look at how to implement an NNTP (Network News Transport Protocol) client using Boost.Asio. NNTP is a line-oriented protocol for reading usenet news articles. This will give us insight into all the typical issues involved in a TCP/IP networking application:

- How do we resolve a host name into an IP address?
- How do we establish a long-lived connection to an NNTP server?
- How do we handle the arbitrarily large amounts of data from an NNTP server that arrives asynchronously?
- How do we coordinate user input with NNTP I/O?
- How do we handle unexpected network errors?

https://www.youtube.com/watch?v=tyDWXT8-Ykc

Hardening C++ with Bjarne Stroustrup

By Jordi Mon Companys | Mar 27, 2023 10:02 PM | Tags: security safety c++20

An interview in Software Engineering Daily with Bjarne on the recent announcements by the NSA and the forthcoming CRA from the EU against the use of C++ based on security concerns.

Hardening C++ with Bjarne
Bjarne Stroustrup

From the interview:

Bjarne wishes for more support rather than calls to drop the use and teaching of C++ altogether. Especially in light of how much progress the C++ 17, 20 and 23 mean to the language but also how using the core guidelines and modern static analysis can reduce vulnerabilities considerably. 

Getting Started with Boost.Asio: Timers and Serial Ports -- Richard Thomson

By Legalize Adulthood | Mar 9, 2023 10:47 AM | Tags: None

Utah C++ Programmers has released a new video.

Getting Started with Boost.Asio: Timers and Serial Ports

by Richard Thomson

From the video description:

I/O operations are inherently asynchronous -- we don't know when input will arrive and when output will be generated. Network I/O can be particularly bothersome because of the long delays between sending a request and obtaining the response.

Boost.Asio is a cross-platform C++ library for network and low-level I/O programming that provides developers with a consistent asynchronous model using a modern C++ approach. Boost.Asio covers timers, serial ports, files, pipes and TCP/IP networking.

This month, Richard Thomson will give us an introduction to Boost.Asio concepts and asynchronous programming with this library. We'll look at how to use timers to notify our application of time passing and how to talk to serial ports asynchronously.

https://www.youtube.com/watch?v=XB3uEit5R_Y

Writing Native Win32 Applications with WinLamb and Modern C++ -- Richard Thomson

By Legalize Adulthood | Feb 15, 2023 11:52 AM | Tags: None

Utah C++ Programmers has released a new video:

Writing Native Win32 Applications with WinLamb and Modern C++

by Richard Thomson

From the video description:

The Win32 Windows API has been around for decades as a C API for GUI applications. At its heart, every Win32 application is a program that receives messages from Windows, decodes those messages and dispatches them to appropriate code for handling the message.

Graphical user interfaces are a natural fit for object oriented programming and C++ GUI frameworks like MFC (Microsoft Foundation Classes) were created to make writing GUI applications easier.

As Win32 applications evolved to incorporate COM (Component Object Model) objects, a need to write small components adhering to well defined interfaces became more important. Writing such components with MFC results in a heavyweight object and additional deployment dependencies. C++ libraries like ATL (Active Template Library) addressed the need to create interoperable binary components that were lightweight with minimal or no deployment dependencies.

The Windows Template Library (WTL) took the lessons learned from writing small COM objects with ATL and applied them to writing complete Win32 applications. The result is a complete library for writing Win32 applications using the static polymorphism of templates instead of the dynamic polymorphism of MFC.

Are there other ways to look at writing Win32 applications?

WinLamb is similar to WTL in that they are both header-only libraries that wrap the Win32 API. While a WTL program uses message map macros to select the appropriate handler for a message, WinLamb uses lambda functions for the message handlers and an internal dispatching mechanism.

This month, Richard Thomson will give us a walk through of using WinLamb to create Win32 applications. We'll look at how to create an application from scratch with CMake and using the project wizard in Visual Studio. (Since our application isn't cross-platform, but Windows only, we won't lose anything by using Visual Studio's wizard.)

From this skeleton application, we'll look at:

  • how to add message handlers to the main window
  • how to add controls to the main window
  • how to define and use resources
  • how to use a dialog box as the main window
  • how to separate GUI logic from application logic
  • Win32 API helpers provided by WinLamb

https://www.youtube.com/watch?v=2K52YX-vHv4

The C++ Language: Present and Future -- Daniel Garcia

By jdgarcia | Feb 15, 2023 11:51 AM | Tags: None

This year we had a wonderful C++ start at Universidad Carlos III de Madrid. The Department of Computer Science and Engineering was honored to have Prof. Bjarne Stroustrup giving a seminar on C++ to start the semester.

We are always happy to have Bjarne Stroustrup with us. Since 2019 he holds a Honorary Doctorate by Universidad Carlos III de Madrid and he has visiting us several times.

Both talks were very well attended with a nice mix of professional developers from industry, students (bachelor, masters and PhD) and researchers and professors from several different departments.

This is a short summary of the two talks he gave:

Day 1: C++ 20: Reaching the aims of C++.

About the video

Out of necessity C++ has been an evolving language. I outline some early ideals for C++, some techniques for keeping the evolution directed, and show how C++20 comes close to many of those ideals. Specific topics ncludes type-and-resource safe code, generic programming, modularity, the elimination of the preprocessor, and error handling. Naturally, over the years, C++ has acquired many “barnacles” that can become obstacles to developing elegant and efficient code. That has been a recognized problem since the early days of C – Dennis Ritchie and I talked about it – so we must distinguish between what can be done and what should be done. The C++ Core Guidelines is the current best effort in that direction.

Day 2: Type-and-resource Safe programming in ISO Standard C++.

About the video

You can write C++ with no violations of the type system, no resource leaks, no memory corruption, no garbage collector, no limitation of expressiveness or performance degradation compared to well-written modern C++. This talk show how this can be achieved – and guaranteed – by the applying the C++ Core Guidelines, simple supporting libraries (mostly the ISO C++ standard library), and static analysis.

Many examples demonstrate how this can be done with code that’s dramatically simpler than older C++ (and C) code. This talk will touch upon RAII, type deduction, span, range checking, nullptr, initialization, invalidation,  casting and variants.