Archive for category: C++ Core Guidelines

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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.…

Overview

C++ Core Guidelines: Programming at Compile Time

January 10, 2019

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Today, I will continue my introduction to programming at compile time. The last post started with template…

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C++ Core Guidelines: Rules for Template Metaprogramming

January 3, 2019

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Yes, you read it correctly. Today, I write about template metaprogramming, programming with types and…

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C++ Core Guidelines: Rules for Variadic Templates

December 27, 2018

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Variadic templates are a typical feature of C++: from the user's perspective, they are easy to use, but…

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C++ Core Guidelines: Rules for Templates and Hierarchies

December 16, 2018

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Due to the C++ core guidelines, "Templates are the backbone of C++’s support for generic programming…

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C++ Core Guidelines: Ordering of User-Defined Types

December 9, 2018

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My post for today is just loosely coupled to the rules of the C++ core guidelines because they do provide…

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C++ Core Guidelines: Template Definitions

December 3, 2018

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Template definitions deal with guidelines that are specific to a template implementation. This means,…

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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 […]
A Lock-Free Stack: A Complete ImplementationFebruary 10, 2025 - 3:01 pm
My last lock-free stack implementation was incomplete. It only supported push operations. Let’s change this. The following paragraph about sequential consistency is optional. You can easily ignore it. Sequential Consistency In my examples, I use the default memory ordering: sequential consistency. The reason is simple. Sequential consistency provides the strongest guarantees of all memory ordering […]
My Next Mentoring Program: “Generic Programming (Templates) with C++” startsFebruary 4, 2025 - 4:51 pm
My next mentoring program, “Embedded Programming with Modern C++,” starts on January 31st. Registration is open. Here are more details. Embedded Programming with Modern C++ The mentoring program consists of 16 stations. You have to invest at least 3 hours per week for each one. This means the program takes four months, and you can […]
A Lock-Free Stack: A Simplified ImplementationFebruary 3, 2025 - 10:37 am
Today, I continue my mini story about lock-free data structures. General Considerations From the outside, the caller’s responsibility (application) is to protect the data. From inside, the data structure is responsible for protecting itself. A data structure that protects itself so a data race cannot appear is called thread-safe. First, what general considerations must you […]
Deferred Reclamation in C++26: Read-Copy Update and Hazard PointersJanuary 27, 2025 - 12:23 pm
Before I dive into lock-free programming, there’s a little bit of theory necessary. A common problem in concurrency is the so-called ABA problem. That means you read a variable twice, which returns the same value each time, A. Therefore, you conclude that nothing changed in between. But you forgot the B. Let me first use […]