Is it possible to generate this automatically using conformance tests?
replies(3):
I have created a webpage that displays all C++ features since C++20 in a simple, searchable table.
It is intended to serve as a quick reference for C++ developers, whether as support for cross-platform development or simply to track the current support status out of curiosity.
I created it as a simpler, more structured, and more up-to-date alternative to the cppreference compiler support site. Please note that the page intentionally does not list LWG and CWG papers. This might change as I am continually updating the site and trying out new ideas.
Questions, feedback and suggestions are appreciated, either here or in the form of GitHub issues.
You're not going to find some hobbyist coming up with a useful conformance or coverage test suite for free. It's intensive, expensive, and arduous.
Such things are mandatory, however, if you are a C++ vendor targeting ISO 26262 or IEC 61508 or similar -- basically, software that could kill you if it's done wrong. It's a niche with money and motivation.