My gosh. I'm having to support some older platforms (like OS/400) who STILL don't have C++11 support. And also for now, HP-UX and Solaris, which support up to C++14 (dead platforms - hoping to drop soon). Someday maybe I'll get to move on.

Very neat website! But it also really shows that C++ is bloated to hell

Is it possible to generate this automatically using conformance tests?

How did you collect this information? Manually by checking all compilers? By writing tests? By parsing compilers documentation?

Any specific reason on why the project is closed source?

Nice! Just curious about one aspect: how much demand is there for C++ nowadays for new projects and what is the anticipated demand mid to long term [5+ years]? Asking as I am seriously considering if it would be a good idea to transition to C++ development (professionally, not as a hobby). Wondering if it would make sense from the POV of projected/anticipated future demand, job security and salaries (VERY important) - in the context of how bad the job market is at the moment.

How do you see someone using this page?

Feature names tend not to be very approachable. They often use very precise terminology or refer to papers with names that are targeted for a very in-the-know population.

As an example, one of the features listed is '`constexpr` `std::shared_ptr` and friends'. You seem to have a search that can cope with backticks but this feature doesn't show up if I search for 'constexpr shared_ptr'. That can be solved technically, but the bigger problem is that this feature also changes things for `weak_ptr` - or 'smart pointers' as a concept.

I can't picture a situation where I end up wanting to know the status of that feature's implementation in isolation.

For what it's worth, cppreference isn't any better at this, since it doesn't have any notes on the addition of support for `constexpr`ness of either pointer type. But with enough will I can change that.