[LessDmesg]

Because C++ is one of the most complex languages in the world, hence a pain to interop with. C FFIs, on the other hand, are ubiquitous.

[izacus]

The idea (and one that worked well in several projects I've worked on) is that you use C++ as main language of the library and make outside bindings C.

It does require some discipline, but C++ has many portable constructs that make life significantly easier when writing business logic.