Help get CppQuiz to C++23 and win a book!

CppQuiz.org is currently using C++ 17 for explanations and needs porting to C++ 23. I’d really appreciate your help! As a thank you, three contributors will get a copy of my upcoming book C++ Brain Teasers.

How do I help?

All the questions from the site have been exported to https://github.com/knatten/cppquiz23. Full instructions are in the README, but in summary, you just have to pick a question and update the explanation to refer to the C++ 23 standard instead of the C++ 17 one. Usually, there are just a few references that need updating (for instance, something moved from §[basic.type.qualifier]¶6 to §[basic.type.qualifier]¶3), sometimes a bit of rewriting is needed, and sometimes there are no changes at all.

How do I win a copy of the book?

When the porting is done, I randomly pick three of the ported questions that were not ported by me, and the ones who ported those questions get a copy each. If I draw the same person several times, I draw again until I have three separate winners.

Let’s get started!