Let’s get back to some basics this week and talk about name lookups in C++. In other words: when you refer to a symbol in your code, how does the compiler find it? Essentially, we can differentiat...

I’ve written plenty on this blog about standard algorithms, but far less about ranges. That’s mostly because, although I’ve had production-ready compilers with C++20 ranges since late 2021, the ori...

Recently, I ran into some code where a class declared itself as a friend. I was quite surprised to see that and at a second glance, I realised that there were 2 characters difference in a relativel...

In recent weeks, we’ve explored language features and library features becoming constexpr in C++26. Those articles weren’t exhaustive — I deliberately left out one major topic: exceptions. Startin...

Last week, we discussed language features that are becoming constexpr in C++26. Today, let’s turn our attention to the standard library features that will soon be usable at compile time. One topic ...

Since constexpr was added to the language in C++11, its scope has been gradually expanded. In the beginning, we couldn’t even use if, else or loops, which were changed in C++14. C++17 added support...

To my greatest satisfaction, I’ve recently joined a new project. I started to read through the codebase before joining and at that stage, whenever I saw a possibility for a minor improvement, I rai...

Today, let’s discuss the not-too-frequently-used final specifier. I think there aren’t many good reasons to use it — something the C++ Core Guidelines also suggests. And even when you could use it,...

Up until C++23, functions, classes, function and class templates could be declared as friends. Starting from C++26, thanks to Jody Hagins’ and Arthur O’Dwyer’s proposal, P2893R3, friendship can als...

During the last two weeks, first we saw what are the language features deprecated or removed from C++26 then we did the same for library features. Life is not so straight and easy though. Sometimes...