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Five Vouchers to win for the book “Modern C++ for Absolute Beginners”

August 28, 2020

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Is it possible to introduce C++ in 300 pages? Yes, it is. The book "Modern C++ for Absolute Beginners"…

TimelineCpp20CoreLanguage

volatile and Other Small Improvements in C++20

August 17, 2020

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Today, I complete my tour through the C++20 core language features with a few small improvements. One…

TimelineCpp20CoreLanguage

New Attributes with C++20

August 13, 2020

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With C++20, we got new and improved attributes such as [[nodiscard("reason")]], [[likely]], [[unlikely]],…

CompilerExlorer

Compiler Explorer, PVS-Studio, and Terrible Simple Bugs

August 12, 2020

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Do you know that PVS-Studio is integrated into the Compiler Explorer? If not, you should definitely read…

TimelineCpp20CoreLanguage

More Lambda Features with C++20

August 7, 2020

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Lambdas in C++20 can be default-constructed and support copy-assignment when they have no state. Lambdas…

cover20

The C++ Standard Library: The Third Edition includes C++20

August 6, 2020

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Just updated: The C++ Standard Library: What every professional C++ programmer should know about the…

TimelineCpp20CoreLanguage

More Powerful Lambdas with C++20

July 31, 2020

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Thanks to C++20, lambdas have become more powerful. From the various lambda improvements, template parameters…

TimelineCpp20CoreLanguage

Various Template Improvements with C++20

July 24, 2020

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Admittedly, I present in this post a few minor improvements to templates and C++20 in general. Although…

TimelineCpp20

Solving the Static Initialization Order Fiasco with C++20

July 11, 2020

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According to the FAQ of isocpp.org is the static initialization order fiasco "a subtle way to crash…

TimelineCpp20

Two new Keywords in C++20: consteval and constinit

July 9, 2020

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With C++20, we get two new keywords: consteval and constinit. consteval produces a function executed…

TimelineCpp20

Designated Initializers

July 2, 2020

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Designated initialization is an extension of aggregate initialization and empowers you to directly initialize…

TimelineCpp20

C++20: Optimized Comparison with the Spaceship Operator

June 25, 2020

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In this post, I conclude my miniseries on the three-way comparison operator with a few subtle details.…

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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 […]
A Lock-Free Stack: A Hazard Pointer Implementation Explained IIApril 7, 2025 - 11:11 am
In my last post, I started to explain a hazard pointer implementation: A Lock-Free Stack: A Hazard Pointer Implementation Explained I. Today, I will continue to explain the implementation. The Retire List The retire list has the public member functions isInUse, addNode, and deleteUnusedNodes. Additionally, it has the inner class RetireNode, an atomic member of […]
A Lock-Free Stack: A Hazard Pointer Implementation Explained IMarch 24, 2025 - 11:37 am
In my last post, I presented a hazard pointer implementation: A Lock-Free Stack: A Hazard Pointer Implementation. Today, I will explain the implementation. MyNode is a class template, parametrized by the type it holds: data. MyNode models the concept Node. template <typename T> concept Node = requires(T a) { {T::data}; { *a.next } -> std::same_as<T&>; […]
A Lock-Free Stack: A Hazard Pointer ImplementationMarch 10, 2025 - 11:42 am
Hazard Pointers solve all issues of the previous implementation: A Lock-Free Stack: A Simple Garbage Collector. From one Week to two Weeks You may have already noticed. I will change my blog publishing frequency from one to two weeks in the future. Writing a post using your voice is exceptionally exhausting and time-consuming. Hazard Pointers […]
A Lock-Free Stack: A Simple Garbage CollectorFebruary 24, 2025 - 11:58 am
My next lock-free stack includes a simple garbage collector. I discussed the concurrent execution of more than one topAndPush call is a Race Condition. I can safely delete a node if not more than one topAndPush call is executing concurrently. This observation is crucial for solving this memory leak issue: I store removed nodes on […]
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 […]