Writing a sort comparison function part 1, part 2, part 3, part 4

by Raymond Chen

I’ve noted in the past that a sort comparison function must follow certain rules, and if you violate those rules, very strange things happen. So what are some patterns for writing sort comparison functions that don’t break the rules?

Most of the time, sorting can be reduced to key comparison: From each element being sorted, you generate a sort key, and those sort keys are compared against each other...

The Ranges Library in C++20: More Details

by Rainer Grimm

Thanks to the ranges library, working with the Standard Template Library (STL) is much more comfortable and powerful. The algorithms of the ranges library are lazy, can work directly on the container, and can easily be composed. But there is more to it...

Check Types with Concepts

by Rainer Grimm

Concepts are a powerful and elegant tool to check at compile time if a type fulfills. Thanks to static_assert, you can use concepts as a standalone feature: static_assert(Concept<T>)...

C++20 Ranges Algorithms - 11 Modifying Operations

by Bartlomiej Filipek

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...

How can I synthesize a C++20 three-way comparison from two-way comparisons?

by Raymond Chen

The C++20 three-way comparison operator <=> (commonly nicknamed the spaceship operator due to its appearance) compares two items and describes the result. It’s called the three-way comparison because there are five possible results: less, equal, equivalent, greater, and unordered.

Yeah, the name is kind of weird...

C++20 Ranges Algorithms - 11 Modifying Operations

by Bartlomiej Filipek

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...

Technical Speaking about C++

by Jens Weller

This event will focus on the process of creating technical talks for the C++ community. Various speakers will share their views on how to submit, prepare and give talks to the C++ community in the form of lightning talks.

Should I pay attention to the warning that I’m std::move‘ing from a trivial type? Part 2

by Raymond Chen

Last time, we looked at motivations for std::move‘ing from a trivial type. Our investigation looked at the problem through the eyes of the object moved from, but there’s another way to look at the problem, and that’s from the point of view of the object being moved to...

Should I pay attention to the warning that I’m std::move‘ing from a trivial type? Part 1

by Raymond Chen

Say you have a class that is trivial...

Dawn of a new C++ cycle

by Jens Weller

It was 10 years ago when one would realize that a new era for C++ was in its beginning: C++11 was a fundamental change. Many things that one wanted to have in the language or standard library suddenly became available, if one had the right compiler in the newest version. And in this time 10 years ago, the first C++now happend in Aspen, as it has again in the beginning of May...