VS 2019 'argument to a feature-test macro must be a simple identifier' error

[bharaths-ncircletech]

Hi,

When used as a part of 'nlohmann/json' following error is coming
Error: 'argument to a feature-test macro must be a simple identifier'
File: hedley.hpp
Line: 1708
(please refer the image)

Visual Studio: 2019
C++: 17
Project Info: AddOn migration from ArchiCAD 26 to ArchiCAD 27 - Tech Preview Version

I started learning C++ and for one of our migration projects we use this. Please suggest a resolution that can be implemented.

I know this is similar to one of the previous issues, but I don't know how this can be solved.
Let me know if any further information is needed.

Thanks & Regards

[nemequ]

Hey, thanks for filing this. Sorry it took so long for me to get around to looking at it…

We have a CI build for VS 2019 and the fallthrough test doesn't complain. Are you still able to reproduce this problem? If so would it be possible to provide the compiler flags, and a complete version number (just run cl.exe without any arguments, it should print the version)?