In the previous article in the Ranges series, I covered some basics and non-modifying operations. Today it’s time for algorithms like transform, copy, generate, shuffle, and many more…. and there’s rotate as well :) Let’s go. Before we start   Key observations for std::ranges algorithms: Ranges algorithms are defined in the <algorithm> header, while the ranges infrastructure and core types are defined in the <ranges> header.

With C++17, you can now use more sophisticated algorithms for pattern searches! You’ll have more control and a promising performance boost for many use cases. This article shows primary usage and runs a benchmark comparing the new techniques. May 2022 Updates: added notes about C++20 and constexpr algorithms, updated the benchmark and compared against std::ranges::search and custom strchr versions.

C++20’s Ranges offer alternatives for most of <algorithm>'s'. This time I’d like to show you ten non-modifying operations. We’ll compare them with the “old” standard version and see their benefits and limitations. Let’s go. Before we start   Key observations for std::ranges algorithms: Ranges algorithms are defined in the <algorithm> header, while the ranges infrastructure and core types are defined in the <ranges> header.

With C++20, we have a new approach to writing algorithms and composing them. The significant question is their performance. Are they faster or slower than the standard C++ algorithms we have known for decades? Let’s find out in this article. I’ll show you three use cases with performance results, and also we’ll compare build times.

In this blog post, I’ll show and explain a strange-looking error about tuple_size_v and instantiation for \n character. You’ll see some tricky parts of SFINAE and how the compiler builds the overload resolution set. Let’s go. A surprising error   When doing experiments with tuple iteration (see part one and part two) I got this strange-looking compiler error:

In January, I was lucky to get a relatively new book on Modern C++! This time it’s not aimed at experts but rather at the beginner level. It’s called “Modern C++ for Absolute Beginners,” written by Slobodan Dmitrović. I think it might be a valuable resource for job interviews. Let’s see what’s inside.

Boolean parameters in a function might be misleading and decrease its readability. If you have a poorly named function like: DoImportantStuff(true, false, true, false); As you can imagine, it’s not clear what all those parameters mean? What’s the first true? What does the last false mean? Can we improve code in such cases?

In the previous article on the tuple iteration, we covered the basics. As a result, we implemented a function template that took a tuple and could nicely print it to the output. There was also a version with operator <<. Today we can go further and see some other techniques. The first one is with std::apply from C++17, a helper function for tuples.

If you have a standard container, it’s easy to use a range-based for loop and iterate over its elements at runtime. How about std::tuple? In this case, we cannot use a regular loop as it doesn’t “understand” tuple’s compile-time list of arguments. That’s why in this article, I’ll show you a few techniques you can use to run through all tuple’s entries.

C++20 is huge and filled with lots of large features. Just to mention a few: Modules, Coroutines, Concepts, Ranges, Calendar & Timezone, Formatting library. But, as you know, that’s not all. Depending on how we count, C++20 brought around 80 Library features and 70 language changes, so there’s a lot to cover :)

C++ not only grows with cool features but also improves and makes code simpler and readable. It’s evident in template code. For example, typename inside dependent names is now much easier (not) to use. If you have an expression like X<T>::name, should you always put typename in front? See the full details below.

I’m happy to present the 10th edition of “C++ at the end”! See what happened this year in the C++ World! New features, plans for the language, updated tools and compilers, conferences, books, and more! What was the most important event this year? The pandemic? C++20 adoption? Ongoing work for C++23 or something else?