Archive for category: Blog

RainerGrimmSmall

Which pdf bundle do you want? Make your choice!

December 26, 2021

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Now, it's time to choose the next pdf bundle? Get all the material to your chosen topic. I…

templatesTypeTraits

The Type-Traits Library: Optimization

December 17, 2021

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The type-traits library has two main goals: correctness and optimization. Today, I write about optimization. This…

templatesTypeTraits

The Type-Traits Library: Correctness

December 8, 2021

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The two main goals of the type-traits library are compelling: correctness and optimization. Today, I…

templatesTypeTraits

The Type-Traits Library: std::is_base_of

December 3, 2021

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I finished the last article on the Type-Traits library with the challenge of explaining the std::is_base_of…

templatesTypeTraits

The Type-Traits Library: Type Comparisons

November 26, 2021

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In my last post, "The Type-Traits Library: Type Checks" I introduced type checks at compile time with…

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And the Winners for the Seven Vouchers for Fedor’s Book “The Art of Writing Efficient Programs” are

November 23, 2021

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I'm happy to present the seven winners in this post including their answers. Strange Packt Behavior First,…

templatesTypeTraits

The Type-Traits Library: Type Checks

November 18, 2021

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The type-traits library is part of C++11 and supports type checks, type comparisons, and type modifications…

TemplateMetaprogramming

Template Metaprogramming – Hybrid Programming

November 12, 2021

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First of all, hybrid programming is not an official term. I created it to emphasize an exciting aspect…

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Seven Voucher for Fedor G. Pikus Book “The Art of Writing Efficient Programs”

November 7, 2021

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I'm happy to announce that I have to offer five vouchers for a digital and two vouchers for a printed…

TemplateMetaprogramming

Template Metaprogramming – How it Works

November 5, 2021

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In my last post, "Template Metaprogramming - How it All Started", I wrote about the roots of template…

Latest news

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, […]