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GeneralIdioms

The Copy-and-Swap Idiom

December 18, 2022

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An idiom is an architectural or design pattern implementation in a concrete programming language. Applying…

PythonCpp

Webinar: C++ with Python for Algorithmic Trading

December 17, 2022

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It’s a surprising fact that C++ and Python are often and effectively used together. They are…

RG E Cover M2 DPAC 720x720 2022 11 27

Registration is Open for my Mentoring Program “Design Patterns and Architectural Patterns with C++”

December 12, 2022

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I'm happy to present my new mentoring program "Design Patterns and Architectural Pattern with C++"…

BehavioralPattern

The Template Method

December 4, 2022

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The Template Method is a behavioral design pattern. It defines a skeleton for an algorithm and is probably…

BehavioralPattern

The Visitor Pattern

November 27, 2022

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The Visitor Pattern encapsulates an operation executed on an object hierarchy as an object and enables…

BehavioralPattern

The Observer Pattern

November 20, 2022

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The Observer Pattern is a behavioral pattern from the book "Design Patterns: Elements of Reusable…

patterns

The Proxy Pattern

November 13, 2022

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The Proxy Pattern is probably the most influential design pattern for C++. The Proxy provides a placeholder…

BehavioralPattern

The Strategy Pattern

November 12, 2022

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The Strategy Pattern is a behavioral design pattern from the book Design Patterns: Elements of Reusable…

patterns

The Facade Pattern

November 7, 2022

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Today, I write about the Facade Pattern. The Facade Pattern is a structural pattern and has one purpose:…

patterns

The Composite Pattern

October 30, 2022

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The Composite Pattern allows you to compose objects into tree structures and treat the individual object…

patterns

The Decorator Pattern

October 23, 2022

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The Decorator Pattern's job is to extend an object with responsibilities dynamically. Let me, in today's…

TemplateMetaprogrammingMarius

And the Five Winners for “Template Metaprogramming with C++” are

October 18, 2022

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Today, I want to present the five winners for coupons for the book "Template Metaprogramming with C++"…

Latest news

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 […]