Archive for category: Blog

StaticDynamic

More about Dynamic and Static Polymorphism

February 25, 2022

/

In my last post, "Dynamic and Static Polymorphism", I introduced dynamic polymorphism. Today, I continue…

An illustration of the dining philosophers problem

More About Me

February 23, 2022

/

Do you want to participate in my mentoring program "Fundamentals for C++ Professionals"? Of course, you…

StaticDynamic

Dynamic and Static Polymorphism

February 18, 2022

/

Polymorphism is the property that different types support the same interface. In C++, we distinguish…

constexprIf

constexpr if

February 7, 2022

/

In today's post, I want to introduce an exciting C++17 feature: constexpr if. constexpr if enables it…

constexpr

constexpr and consteval Functions in C++20

February 4, 2022

/

With C++20, constexpr became way more powerful. Additionally, we have consteval functions in C++20…

RainerTalk

More Information about my Mentoring Program “Fundamentals for C++ Professionals”

February 4, 2022

/

One month ago, I presented "My Mentoring Program "Fundamentals for C++ Professionals". I'm overwhelmed…

constexpr

constexpr Functions

January 26, 2022

/

Today, I continue my story about programming at compile time. After template metaprogramming, the type-traits…

ConcurrencyCoverFrame

An Update of my Book “Concurrency with Modern C++”

January 20, 2022

/

I am happy to announce. I updated my "Concurrency with Modern C++". This update includes a rework…

bundle

The New pdf Bundle is Ready: C++20 Concurreny – The Hidden Pearls

January 12, 2022

/

I have prepared the pdf bundle. To get it is quite simple. If you subscribe to the newsletter,…

An illustration of the dining philosophers problem

Dining Philosophers Problem III

January 8, 2022

/

This post ends the mini-series about the dining philosophers problem by Andre Adrian. Today, he applies…

Latest news

Data-Parallel Types: simd_maskJuly 14, 2025 - 9:16 am
Thanks to simd_mask, conditional execution of operations on data-parallel types is possible. Unfortunately, in my last article, Data-Parallel Types – A First Example, I forgot to introduce one of the new library functions. I will make up for that in this article. Where Expression The new keyword where creates a so-called where expression. This allows […]
Data-Parallel Types – A First ExampleJune 25, 2025 - 4:01 pm
After providing a theoretical introduction to the new C++ 26 feature in my last article, “Data-Parallel Types (SIMD),” I would like to follow up today with a practical example. The following introductory example is from the experimental implementation of the SIMD library. This functionality has been fully adopted in the C++ 26 draft under the […]
Data-Parallel Types (SIMD)June 16, 2025 - 10:24 am
The data-parallel types (SIMD) library provides data-parallel types and operations on them. Today, I want to take a closer look at this. Before diving into the new library, I would like to take a moment to discuss SIMD. SIMD Vectorization refers to the SIMD (Single Instruction, Multiple Data) extensions of a modern processor’s instruction set. […]
Read-copy-update (RCU)June 2, 2025 - 9:54 am
Read-copy-update is strong in multithreading environments where a data structure is read almost exclusively but rarely written. First of all, what is RCU? The excellent Wikipedia page on Read-copy-update provides a good introduction: In computer science, read-copy-update (RCU) is a synchronization mechanism that avoids the use of lock primitives while multiple threads concurrently read and […]
atomic<shared_ptr<>> by Oliver SchädlichMay 19, 2025 - 9:11 am
This blog article is an experiment. A few days ago, I received the following email (translated from German) from Oliver Schädlich (oliver.schaedlich@gmail.com). If, as I hope, this article sparks a discussion, I will be happy to summarize it in my last article. Please send an email to: Rainer.Grimm@ModernesCpp.de. I just read your latest article on […]
Hazard Pointers in C++26May 5, 2025 - 11:12 am
Hazard pointers provide garbage collection in C++ and solve the ABA problem. First of all. What is a hazard pointer? Proposal P2530R3 gives a nice explanation: A hazard pointer is a single-writer multi-reader pointer that can be owned by at most one thread at any time. Only the owner of the hazard pointer can set […]