Re: [boost] Proposal for adding C++ level to the meta/libraries.json

Gavin Lambert wrote:

There's already a "std": [ "tr1"/"proposal" ] field, perhaps this should be extended rather than replaced?

While undocumented, I note some libraries have already made use of this as std: [ "c++17" ] for example.

"std" actually means something different: which C++ standard contains the library. (E.g. boost::bind is in C++11, boost::optional is in C++17.)