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03 template instantiation

C++ Insights – Template Instantiation

March 28, 2019

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Today's post from Andreas is about template instantiation. C++ Insights helps you a lot to get a deeper…

02 type deduction

C++ Insights – Type Deduction

March 20, 2019

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Andreas Fertigs story with C++ Insights goes on. This weeks post is about type deduction with auto and…

RainerGrimmSmall

Which pdf bundle should I provide? Make your choice!

March 17, 2019

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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…

01 implicit conversions

C++ Insights – Implicit Conversions

March 13, 2019

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I'm totally happy to announce that this post starts a series of posts to C++ Insights. C++ Insights is…

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C++ Core Guidelines: Mixing C with C++

March 8, 2019

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Due to the same history of C and C++, both languages are closely related. Because neither of them is…

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Types-, Non-Types, and Templates as Template Parameters

February 27, 2019

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I assume you saw the additional keywords typename or template used before a name in a template. Me too.…

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Templates: Misconceptions and Surprises

February 22, 2019

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I often teach the basics of templates. Templates are special. Therefore, I encounter many misconceptions…

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C++ Core Guidelines: Surprise included with the Specialisation of Function Templates

February 15, 2019

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Today, I finish the C++ core guidelines rules to templates with a big surprise for many C++ developers.…

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C++ Core Guidelines: Other Template Rules

February 8, 2019

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Today, I write about the few remaining rules to templates. Because a collective name is missing, they…

constexpr

C++ Core Guidelines: Programming at Compile Time with constexpr

February 1, 2019

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My mini-series about programming at compile time started with template metaprogramming, continued with…

TypeTraits

C++ Core Guidelines: Programming at Compile Time with Type-Traits (The Second)

January 24, 2019

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The type-traits library supports type checks, type comparisons, and type modifications at compile time.…

TypeTraits

C++ Core Guidelines: Programming at Compile Time with the Type-Traits

January 17, 2019

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My journey through programming at compile time began in the last posts with template metaprogramming.…

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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 […]