About code. Mostly on C++
PImpl (which stands for Pointer to implementation) is a programming tehnicque to remove implementation details from a class by placing them in a separate class that is accessed through an opaque pointer. Its purpose is to separate interfaces and implementations and minimize compile-time dependencies. In this article, we’ll at how the PImpl idiom is typically … Read more
The C++26 standard features a series of improvements to the format library. In this article, we will look at the most important of them.
I have recently come across a (click-bait) post on X claiming that multiplying two 1000×1000 matrices in Python was several times faster than in C++ or other languages. So how do you multiply matrices in C++? Let’s see. First of all, how do you multiply matrices? It’s pretty simple: Here, c11 is computed as follows: … Read more
This article continues the series of discussing the C++26 features with the topic of concepts, which are language level asserts for checking function preconditions, postconditions, and invariants.
In a previous blog post, I talked about several features included in C++26: specifying a reason to delete a function, placeholder variables with no name, structured binding declaration as a condition, and user-generated static_assert messages. In this post, I will continue exploring the new features that have been already included in the C++26 standard. #embed … Read more
The C++26 version of the C++ standard is a work in progress, but a series of language and library features have been already added. Furthermore, some of them are already supported by Clang and GCC. One of these new changes was discussed in my previous article, Erroneous behaviour has entered the chat. In this post, … Read more
The C++ language defines the observable behaviour of a program and uses terms such as ill-formed or undefined behaviour to describe it. The C++26 standard introduces a new one, called erroneous behaviour. In this post, we’ll look at what these terms mean. Well-formed This is the simplest of them all. It means that a program … Read more