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

From: Gavin Lambert (boost_at_[hidden])
Date: 2020-09-22 01:41:30

On 22/09/2020 05:37, Edward Diener wrote:
> My proposal is to add 3 fields whose data would be the same as the 
> cxxstd allowed values from Boost Build, using the first value of each 
> choice ( currently 03, 11, 14, 17, 20 ).
> 
> standard = minimum C++ level for the library
> extended = same functionality in the library as the minimum C++ level 
> but with extended use given higher C++ levels
> required = new functionality in the library above the minimum C++ level 
> which requires given higher C++ levels

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.