Attributes are an underrated feature of the C++ language, in my opinion. I am saying this because I rarely see attributes used in code or samples featured in articles, videos, or talks. Although some of the standard attributes are targeted towards library implementers or address a limited number of scenarios (such as [[no_unique_address]], [[noreturn]], or [[carries_dependency]]), there are several that are quite useful in many situations. I refer here to [[nodiscard]], [[maybe_unused]], and [[deprecated]], which are the attributes I will talk about in this post.
The C++20 standard is complete and is supposed to be published later this year after the voting of the final draft takes place. However, there are books already with C++20 content. In this blog post I present a list of them. The C++ Standard Library, 3rd edition – Rainer Grimm Rainer is an author, consultant,…
When working in C++, you often hear about POD types (which stands for Plain Old Data). PODs are useful for communicating with code written in other programming languages (such as C or .NET languages). They can also be copied using memcpy (which is important because this is a fast, low-level function that provides performance benefits), and have other characteristics that are key for some scenarios. However, the new C++20 standard has deprecated the concept of POD types in favor of two more refined categories, which are trivial and standard-layout types. In this post, I will discuss what these categories are and when to use instead of POD.
The Visual Studio editor has lots of functionalities, many of them available with the use of shortcuts. In this post, I will share several that I find very useful and I use quite often. This post refers to Visual Studio 2019.