Archive for category: Blog

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C++ Core Guidelines: Rules for Error Handling

July 12, 2018

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Error handling is an essential part of writing good software; therefore, the C++ core guidelines have…

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Which pdf bundle should I provide? Make your choice!

July 8, 2018

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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: The Remaining Rules about Lock-Free Programming

July 6, 2018

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Today, I will finish my story on concurrency and lock-free programming. There are four rules to lock-free…

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C++ Core Guidelines: The Resolution of the Riddle

June 27, 2018

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Today, I will solve the riddle from my last post. Thanks to my readers, the analysis of the ABA problem…

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C++ Core Guidelines: Concurrency and lock-free Programming

June 19, 2018

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Today, I will finish the rules for concurrency and continue directly with lock-free programming. Yes,…

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The End of my Detour: Unified Futures

June 15, 2018

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After the last post to executors, I can finally write about the unified futures. I write in the post…

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The Update of my Book “Concurreny with Modern C++”

June 12, 2018

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The update of my book "Concurrency with Modern C++" is available. This version is a total rework of the…

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A Short Detour: Executors

June 8, 2018

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A few weeks ago, one of the authors of the proposal to the futures in C++ Felix Petriconi wrote me an…

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C++ Core Guidelines: Be Aware of the Traps of Condition Variables

June 1, 2018

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Today, I am writing a scary post about condition variables. You should be aware of these issues of condition…

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C++ Core Guidelines: More Traps in the Concurrency

May 24, 2018

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Concurrency provides many ways to shoot yourself in the foot. The rules for today help you to know these…

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std::executionNovember 18, 2024 - 9:03 am
std::execution, previously known as executors or Senders/Receivers, provides “a Standard C++ framework for managing asynchronous execution on generic execution resources“. (P2300R10) Side Note Change of plans. My original plan was to present the C++26 library after the core language. However, the implementation status of the library is not good enough. Therefore, I decided to continue […]
C++26 Core Language: Small ImprovementsNovember 4, 2024 - 8:34 am
There are more small improvements in the C++26 language, which you should know. static_assert extension First, here’s the syntax of static_assert in C++11: static_assert(compile time predicate, unevaluated string) With C++26, the string can be a user-defined type having the following properties: static_assert can now be used with a format string. Here’s a nice example from […]
Placeholders and Extended Character SetOctober 28, 2024 - 10:19 am
Placeholders are a nice way to highlight variables that are no longer needed. Additionally, the character set of C++26 will be extended. Placeholders Structured bindings are a C++17 feature that allows you to bind multiple variables to the elements of a structured object. The following program demonstrates using tuples and structured bindings to return and […]
Contracts in C++26October 21, 2024 - 9:54 am
Contracts allow you to specify preconditions, postconditions, and invariants for functions. Contracts should already be part of C++20 but were removed in the standard meeting in Cologne. Here is what Herb Sutter said about contracts on Sutter’s Mill: “contracts is the most impactful feature of C++20 so far, and arguably the most impactful feature we […]
Reflection in C++26: Determine the LayoutOctober 14, 2024 - 9:42 am
Thanks to reflection, you can determine the layout of types. My examples are based on the reflection proposal P2996R5. Class Layout The following program determines the class layout of a few members. // classLayout.cpp #include <experimental/meta> #include <iostream> #include <utility> #include <vector> #include <array> struct member_descriptor { std::size_t offset; std::size_t size; bool operator==(member_descriptor const&) const […]
Reflection in C++26: Metafunctions for Enums and ClassesOctober 7, 2024 - 1:53 pm
Today, I continue my journey through reflection in C++26 and play with enums and classes. The names of the metafunctions to access an Enum or a Class member are often identical. Access the Members of an Enum The following program is based on one by Daveed Vandevoorde. Daveed is one of the fathers of reflection, […]