Archive for category: Blog

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C++ Core Guidelines: More Rules for Declarations

January 20, 2018

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In this post, I will finish the rules for declarations. The remaining rules for declarations are not…

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C++ Core Guidelines: Declarations and Initialisations

January 12, 2018

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Let's continue our tour through the rules for expressions and statements in the C++ core guidelines.…

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Clean C++

January 6, 2018

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I want to make a short detour from my long series of posts about the C++ Core Guidelines. I read the…

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C++ Core Guidelines: Rules for Expressions and Statements

December 29, 2017

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There are many rules in the C++ Core Guidelines dealing with expressions and statements. To be precise,…

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C++ Core Guidelines: Passing Smart Pointers

December 23, 2017

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Passing smart pointers is a critical topic that is seldom addressed. This ends with the C++ core guidelines…

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C++ Core Guidelines: Rules for Smart Pointers

December 15, 2017

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There were a lot of C++ experts who said that smart pointers were the essential feature of C++11. Today,…

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The new pdf bundle is available: Embedded – Performance Matters

December 9, 2017

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

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C++ Core Guidelines: Rules for Allocating and Deallocating

December 8, 2017

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

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C++ Core Guidelines: Rules about Resource Management

December 1, 2017

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

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C++ Core Guidelines: Rules for Enumerations

November 24, 2017

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

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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, […]