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C++ Core Guidelines: Rules for Expressions

January 27, 2018

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Today's post is about expressions. You should avoid complicated expressions, know the precedence rules…

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C++ Core Guidelines: More Rules for Declarations

January 20, 2018

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In this post, I will finish the rules for declarations. The remaining rules for declarations are not…

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C++ Core Guidelines: Declarations and Initialisations

January 12, 2018

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Let's continue our tour through the rules for expressions and statements in the C++ core guidelines.…

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Clean C++

January 6, 2018

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I want to make a short detour from my long series of posts about the C++ Core Guidelines. I read the…

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C++ Core Guidelines: Rules for Expressions and Statements

December 29, 2017

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There are many rules in the C++ Core Guidelines dealing with expressions and statements. To be precise,…

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C++ Core Guidelines: Passing Smart Pointers

December 23, 2017

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Passing smart pointers is a critical topic that is seldom addressed. This ends with the C++ core guidelines…

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C++ Core Guidelines: Rules for Smart Pointers

December 15, 2017

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There were a lot of C++ experts who said that smart pointers were the essential feature of C++11. Today,…

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The new pdf bundle is available: Embedded – Performance Matters

December 9, 2017

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

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C++ Core Guidelines: Rules for Allocating and Deallocating

December 8, 2017

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The guidelines have six rules for explicit memory allocation and deallocation. Six! Maybe you are surprised…

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C++ Core Guidelines: Rules about Resource Management

December 1, 2017

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This and the following posts will probably be about the most critical concern in programming: resource…

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C++ Core Guidelines: Rules for Enumerations

November 24, 2017

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The section to enumerations has eight rules. Since C++11, we have scoped enumerations which overcome…

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Which pdf bundle should I provide? Make your choice!

November 22, 2017

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Now, it's time to choose the next pdf bundle? You will get all posts, all source files, and a cmake file…

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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 […]