I work in the same domains, plus hard embedded real-time. Some projects end up choosing C, some C++. C has the advantage of simplicity and more mature tooling,

I work in the same domains, plus hard embedded real-time. Some projects end up choosing C, some C++. C has the advantage of simplicity and more mature tooling, C++ has the advantage of a stronger type system (able to move some things from correct-by-testing to correct-by-construction) and a medium-weight code generation system in the form of templates.