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Questions tagged [c++20]

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C++20 is the target for the version of C++ after C++17. This tag should be used (along with the C++ tag) for questions about C++ features on track for C++20.

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6
votes
2answers
226 views

Playing with operator<=> (operator spaceship) in c++

I have been trying to get a better handle on the operator<=>, so I wrote two different string wrappers. The Strong_String wrapper uses ...
6
votes
1answer
146 views

Max function with variable number of arguments

I find it irritating that in standard C++ I can't do std::max(a, b) = x when it's possible and that it can't handle more than 2 arguments. For the second concern I ...
10
votes
3answers
275 views

C++20 standard compatible vector

I decided to write my own vector class template for learning purposes. My main goal was a correct interpretation of C++20 standard (as of n4810). I took some liberties and decided to use concepts ...
10
votes
1answer
574 views

C++17 <span> implementation

C++20 added the span library under the header <span>. As voluntary exercise (not homework!), I spent approximately 1.5 ...
7
votes
2answers
285 views

Generic way to remove all duplicates from a not-sorted container

Here's an interesting article called "How to Remove Elements from a Sequence Container in C++". At some point, the author also explains how to remove duplicates from a container, but only with the ...
2
votes
1answer
464 views

C++ multithread pool class

I have addressed the critique for this post and resubmitted it for iterative review; C++20 multithread pool class. This is an iteration from a prior post; C++ thread pool class. Class for creating ...
7
votes
2answers
217 views

C++2a comparison-based topological sort algorithm

Here's my attempt at a C++2a Standard Library–friendly "topological sort" algorithm. There are several areas of interest here: The algorithm is comparison-based and in-place, just like ...
6
votes
1answer
652 views

Constexpr unit tests and asserts

I'm trying out some different programming styles to experiment with the new C++ concepts. Within the experiment I was looking into how constexpr could be helpful ...