Archive for category: ALS

My ALS Journey (20/n): Aids

February 9, 2025

Today, I would like to introduce all the important aids that allow me and Beatrix to get through the…

My ALS Journey (19/n): The Never Ending Story

January 4, 2025

Today, I present a sad story, and I can only take it by humor. >> My ALS Journey so far << My…

Last Chance- 1 Day Left

December 23, 2024

Make the Difference Let's do something great together: From December 1st to 24th, when you book…

Christmas Special – 5 Days Left

December 19, 2024

Make the Difference Let's do something great together: From December 1st to 24th, when you book…

Christmas Special – 7 Days Left

December 17, 2024

Make the Difference Let's do something great together: From December 1st to 24th, when you book…

My ALS Journey (18/n): C++ and ALS

December 16, 2024

Christmas Promotion Let’s do something great together: From December 1st to 24th, when…

Christmas Special

December 1, 2024

Make the Difference Let's do something great together: From December 1st to 24th, when you book…

My ALS Journey (17/n): Christmas Special

November 20, 2024

Today, I have a special Christmas gift. >> My ALS Journey so far << Make the…

My ALS Journey (16/n): Good Bye Training / Hello Mentoring

November 3, 2024

In 2025, I will no longer offer C++ classes. Instead, I will only offer C++ mentoring in the future. >>…

My ALS Journey (15/n): A typical Day

October 8, 2024

You may wonder how my day looks. Let me compare a day before ALS with a current day >> My ALS Journey…

Latest news

A Lock-Free Stack: Atomic Smart PointerFebruary 17, 2025 - 11:47 am
The easiest way to solve this memory leak issue from the last post is to use a std::shared_ptr. Atomic Smart Pointer There are two ways to apply atomic operations on a std::shared_ptr: In C++11, you can use the free atomic functions on std::shared_ptr. With C++20, you can use atomic smart pointers. C++11 Using atomic operations […]
A Lock-Free Stack: A Complete ImplementationFebruary 10, 2025 - 3:01 pm
My last lock-free stack implementation was incomplete. It only supported push operations. Let’s change this. The following paragraph about sequential consistency is optional. You can easily ignore it. Sequential Consistency In my examples, I use the default memory ordering: sequential consistency. The reason is simple. Sequential consistency provides the strongest guarantees of all memory ordering […]
My Next Mentoring Program: “Generic Programming (Templates) with C++” startsFebruary 4, 2025 - 4:51 pm
My next mentoring program, “Embedded Programming with Modern C++,” starts on January 31st. Registration is open. Here are more details. Embedded Programming with Modern C++ The mentoring program consists of 16 stations. You have to invest at least 3 hours per week for each one. This means the program takes four months, and you can […]
A Lock-Free Stack: A Simplified ImplementationFebruary 3, 2025 - 10:37 am
Today, I continue my mini story about lock-free data structures. General Considerations From the outside, the caller’s responsibility (application) is to protect the data. From inside, the data structure is responsible for protecting itself. A data structure that protects itself so a data race cannot appear is called thread-safe. First, what general considerations must you […]
Deferred Reclamation in C++26: Read-Copy Update and Hazard PointersJanuary 27, 2025 - 12:23 pm
Before I dive into lock-free programming, there’s a little bit of theory necessary. A common problem in concurrency is the so-called ABA problem. That means you read a variable twice, which returns the same value each time, A. Therefore, you conclude that nothing changed in between. But you forgot the B. Let me first use […]
std::format ExtensionJanuary 20, 2025 - 11:55 am
Displaying the address of an arbitrary pointer in C++ 20 fails but succeeds with C++26. C++20 Only void, const void, and std::nullptr_t pointer types are valid. If you want to display the address of an arbitrary pointer, you must cast it to (const) void*. // formatPointer20.cpp #include <format> #include <iostream> #include <string> int main() { […]