Blog

RainerGrimmSmall

The new pdf bundle is available: Embedded – Performance Matters

December 9, 2017

/

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

German Monopoly board in the middle of a game

C++ Core Guidelines: Rules for Allocating and Deallocating

December 8, 2017

/

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

photo montage 1548599 640

C++ Core Guidelines: Rules about Resource Management

December 1, 2017

/

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

hand 162127 640

C++ Core Guidelines: Rules for Enumerations

November 24, 2017

/

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

RainerGrimmSmall

Which pdf bundle should I provide? Make your choice!

November 22, 2017

/

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

Wolpertinger

C++ Core Guidelines: Rules for Unions

November 17, 2017

/

A union is a particular data type where all members start at the same address. A union can hold only…

genetic

C++ Core Guidelines: More Rules for Overloading

November 10, 2017

/

I started the last post on my journey through the rules for overloading functions and operators. Let…

mistake

C++ Core Guidelines: Rules for Overloading and Overload Operators

November 4, 2017

/

There are ten rules for overloading and overload operators in the C++ core guidelines. Many of them are…

cover

The C++ Standard Library: The Second Edition includes C++17

November 3, 2017

/

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

doorSmall

C++ Core Guidelines: Accessing Objects in a Hierarchy

October 27, 2017

/

There are nine rules to access objects in class hierarchies. Let's have a closer look. Here…

C++ Core Guidelines: The Remaining Rules about Class Hierarchies

October 20, 2017

/

I needed three posts to present the 20 rules for class hierarchies in the C++ core guidelines. Here are…

RainerGrimmSmall

The new pdf bundle is available: Functional Programming with C++17 and C++20

October 18, 2017

/

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

Latest news

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 […]