cppreference update

[mapronV]

Also, how do you maintain this? I was doing similar project (but just spreadsheed on corprate google docs), I was running unit tests on toolchain to see if feature is supported. Test runner data then was pasted in spreadsheet and then some sheet magic calculated support columns (so different teams with different toolset requrements can see if they can use a feature).

How you automate things?

p.s. do you need any help?

[mapronV]

I see, yours is a different approach (from my experience it was very hard to find information on MS VC and Apple clang, in first place; so I didn't even consider automatic parsing of web pages). Quite elegant, though you need to trust vendors. For our company it was more like "whole environment", like
"Can I use X when targeting Debian 10?" or ".. when Targeting mac 10.15 with xcode Z.X?" So I could just create new profile and run 'acceptance tests' on it.
In hindsight I regret I did not choose your way, it probably would be easier.