Archive for category: C++23

C++23: This and That

August 12, 2024

I have already written 10 posts about C++23. Today, I want to discuss the features I forgot in the first…

C++23: Ranges Improvements and std::generator

September 18, 2023

C++20 does not provide concrete coroutines, but C++20 provides a framework for implementing coroutines.…

C++23: A Multidimensional View

September 11, 2023

A std::mdspan is a non-owning multidimensional view of a contiguous sequence of objects. The contiguous…

C++23: Four new Associative Containers

September 4, 2023

The four associative containers std::flat_map, std::flat_multimap, std::flat_set, and std::flat_multiset…

C++23: A New Way of Error Handling with std::expected

August 28, 2023

C++23 extends the interface of std::optional and gets the new data type std::expected for error handling. Before…

C++23: A Modularized Standard Library, std::print and std::println

August 21, 2023

The C++23 standard library has very impressive improvements. In this post, I will write about the modularized…

C++23: More Small Pearls

August 7, 2023

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With the static multidimensional subscript and call operator, the C++23 core language has more to offer. auto(x)…

C++23: The Small Pearls in the Core Language

July 31, 2023

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The C++23 core language has more to offer than deducing this. Today, I will write about the small pearls. Literal…

C++23: Syntactic Sugar with Deducing This

July 24, 2023

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The Curiously Recurring Template Pattern (CRTP) is a heavily used idiom in C++. It is similarly resistant…

C++23: Deducing This

July 17, 2023

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Anyone who thinks a small C++ standard follows a significant C++ standard is wrong. C++23 provides powerful…

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Reflection in C++26: MetafunctionsSeptember 30, 2024 - 10:14 am
Reflection offers many metafunctions that run at compile time. The metafunctions are declared as consteval. consteval creates a so-called immediate function. Each invocation of an immediate function creates a compile-time constant. To say it more directly. A consteval (immediate) function is executed at compile-time. Read more about consteval and constinit in my previous post: Two […]
Reflection in C++26September 23, 2024 - 10:56 am
After the search into the breadth starts today, the search into the depth: reflection. Reflection Reflection is the ability of a program to examine, introspect, and modify its structure and behavior. Reflection in C++ is more. Here are two statements from the proposal (P2996R5). “We not only want to observe the structure of the program: […]
An Overview of C++26: ConcurrencySeptember 16, 2024 - 9:29 am
Today, I will finish my overview of C++26 and write about concurrency. There are still two library features left before I jump into the concurrency: saturation arithmetic and debugging support. Saturation Arithmetic Saturation arithmetic is a version of arithmetic in which all operations, such as addition and multiplication, are limited to a fixed range between […]
An Overview Of C++26: The Library – MathSeptember 9, 2024 - 10:18 am
The most interesting feature of the new C++26 standard library is its improved math support. std::submdspan std::submdspan is s a subspan of an existing span std::mdspan (C++23). The subspan didn’t make it into C++23 and was added with C++26. Before I continue with C++26, I must make a short detour to C++23. hi std::mdspan A […]
An Overview of C++26: The LibrarySeptember 2, 2024 - 10:58 am
In my last post, I overviewed C++26’s core language. Today, I continue with the library. To make it short. The library does not offer such powerful features as the core language. Let me name them and give you a short example directly from the proposal. std::string and std::string_view Processing The functions around std::string and std::string_view […]
An Overview of C++26: Core LanguageAugust 26, 2024 - 8:09 am
C++26 has a lot to offer. Let me directly jump in and give you an overview. This image gives you the first idea of what’s inside or outside C++26. Writing a blog post about the future is always challenging because the design freeze of C++26 is in the first quarter of 2025. Fishing in Murky […]