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Video & On-Demand

CopperSpice: C++20 and Two's Complement

By Ansel Sermersheim | Jan 26, 2025 11:48 AM | Tags: None

New video on the CopperSpice YouTube Channel:

C++20 and Two's Complement

by Barbara Geller and Ansel Sermersheim

About the video:

Someone mentioned C++20 is unusable because the standard now requires 2' Complement. Is is possible that he has a point and if so, on what basis did he make this claim?

We encourage everyone to watch our video to discover the history of Binary Representation.

Take a look and remember to subscribe.

CopperSpice: std::launder

By Ansel Sermersheim | Nov 25, 2024 11:26 AM | Tags: None

New video on the CopperSpice YouTube Channel:

std::launder

by Barbara Geller and Ansel Sermersheim

About the video:

Our recent C++ video started a lively conversation. We showed a use case for std::launder which caught several developers off guard. A new compiler setting was enabled which exposed a problem in our existing code. Please watch the full video to find out what we learned.

Take a look and remember to subscribe.

IoT Development with POCO C++ libraries and macchinaio

By Meeting C++ | Sep 28, 2024 06:44 AM | Tags: poco meetingcpp iot embedded community

Recently Günter Obiltschnig from the POCO Project gave a talk about IoT Development with POCO C++ libraries and macchinaio at a by macchina.io sponsored Meetup of Meeting C++ online.

IoT Development with POCO C++ libraries and macchinaio

by Günter Obiltschnig

Chapter Videos:

POCO C++ Libraries overview

Macchina.io overview

Projects using POCO C++ Libaries and macchina.io in the real world

Q&A with Günter Obiltschnig after the talk

CopperSpice: Template Design With Policy Classes

By Ansel Sermersheim | Sep 24, 2024 01:20 PM | Tags: None

New video on the CopperSpice YouTube Channel:

Template Design With Policy Classes

by Barbara Geller and Ansel Sermersheim

About the video:

We have a new C++ video which discusses Policy Based Design and compares it to other styles of programming. Do you know which design pattern policy based programming solves? Have you considered the benefits of a design which provides a solution at compile time versus run time? Are you using policies and maybe you had no idea they had a name?

Please take a look and remember to subscribe.

CppCon 2023 Undefined Behavior in C++: What Every Programmer Should Know and Fear -- Fedor Pikus

By Blog Staff | Jul 26, 2024 05:06 AM | Tags: None

pikus-undefinedbehavior.pngRegistration is now open for CppCon 2024! The conference starts on September 15 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 2024!

Undefined Behavior in C++: What Every Programmer Should Know and Fear

by Fedor Pikus

Summary of the talk:

This talk is about You-Know-What, the thing in our programs we don’t mention by name.

What is this undefined behavior every C++ programmer has grown to fear? Just as importantly, what it isn’t? If it’s so scary, why is it allowed to exist in the language?
The aim of this talk is to approach undefined behavior rationally: without fear but with due caution. We will learn why the standard allows undefined behavior in the first place, what actually happens when a program does something the standard calls “undefined,” and why it must be taken seriously even when the program “works as-is.” As this is a practical talk, we will have live demos of programs with undefined behavior and sometimes unexpected outcomes (if you are very lucky, you might see demons fly out of the speaker’s nose). Also, as this is a practical talk, we will learn how to detect undefined behavior in one’s programs, and how to take advantage of the undefined behavior to gain better performance.