Microsoft (R) C/C++ Optimizing Compiler Version 19.28.29335 for x64 handles it just fine. That is the compiler included in the Visual Studio Build Tools 2019 16.8.3. MinGW64 GCC 9.1.0 also has no problems. What version of the compiler is allegedly having problems and what memory model (x86/x64) is being used? Calling something "Visual Studio 2019" is sort of like saying "the car has a problem" without specifying the make and model.