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C++ Core Guidelines: Class Rules

August 18, 2017

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A class is a user-defined type where the programmer can specify the representation, the operations, and…

RainerGrimmSmall

Which pdf bundle should I provide?

August 15, 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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C++ Core Guidelines: Semantic of Function Parameters and Return Values

August 11, 2017

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Today, I conclude my treatise about the rules for functions in the C++ core guidelines. The last…

FunctionParameters

C++ Core Guidelines: The Rules for in, out, in-out, consume, and forward Function Parameter

August 4, 2017

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You have many choices to pass function parameters. You can pass by value or by reference. A reference…

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“Concurrency with Modern C++” is 95% complete; Including all Source Files

August 2, 2017

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Concurrency with Modern C++ is a journey through current and upcoming concurrency in C++. This the last…

cogs

C++ Core Guidelines: Function Definitions

July 29, 2017

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Functions are the "fundamental building block of programs." and "the most critical part in most…

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C++ Core Guideline: The Guideline Support Library

July 21, 2017

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The guidelines support library (GSL) is a small library for supporting the guidelines of the C++ core…

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My Book “Concurrency with Modern C++” is 75% complete

July 19, 2017

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Concurrency with Modern C++ is a journey through current and upcoming concurrency in C++. This early…

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C++ Core Guidelines: Interfaces II

July 8, 2017

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Interfaces are a contract between a service provider and a service consumer. The C++ Core Guidelines…

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C++ Core Guidelines: Interfaces I

July 7, 2017

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Interfaces are a contract between a service provider and a service consumer. The C++ Core Guidelines…

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My Book “Concurrency with Modern C++” is 50% complete

July 5, 2017

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Concurrency with Modern C++ is a journey through current and upcoming concurrency in C++. It includes…

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C++ Core Guidelines: The Philosophy

June 30, 2017

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Today, I will dig deeper into the C++ Core Guidelines. I wrote about the Introduction section in my last…

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Data-Parallel Types – A First ExampleJune 25, 2025 - 4:01 pm
After providing a theoretical introduction to the new C++ 26 feature in my last article, “Data-Parallel Types (SIMD),” I would like to follow up today with a practical example. The following introductory example is from the experimental implementation of the SIMD library. This functionality has been fully adopted in the C++ 26 draft under the […]
Data-Parallel Types (SIMD)June 16, 2025 - 10:24 am
The data-parallel types (SIMD) library provides data-parallel types and operations on them. Today, I want to take a closer look at this. Before diving into the new library, I would like to take a moment to discuss SIMD. SIMD Vectorization refers to the SIMD (Single Instruction, Multiple Data) extensions of a modern processor’s instruction set. […]
Read-copy-update (RCU)June 2, 2025 - 9:54 am
Read-copy-update is strong in multithreading environments where a data structure is read almost exclusively but rarely written. First of all, what is RCU? The excellent Wikipedia page on Read-copy-update provides a good introduction: In computer science, read-copy-update (RCU) is a synchronization mechanism that avoids the use of lock primitives while multiple threads concurrently read and […]
atomic<shared_ptr<>> by Oliver SchädlichMay 19, 2025 - 9:11 am
This blog article is an experiment. A few days ago, I received the following email (translated from German) from Oliver Schädlich (oliver.schaedlich@gmail.com). If, as I hope, this article sparks a discussion, I will be happy to summarize it in my last article. Please send an email to: Rainer.Grimm@ModernesCpp.de. I just read your latest article on […]
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 […]