Surprisingly you don't even need to use DO-178, you just need to convince the FAA that it is safe. I have never heard of anyone not using DO-178 though.
I have never heard of anyone not using DO-178 though.
Me neither. I can imagine that would be harder than just using DO-178, as the auditors are used to dealing with it.
Have you seen level A software written using C++?
Not personally. I have heard of a level A flight controls project that was planning to use C++, and was in the process of getting their C++ compiler (GCC C++, I believe) certified. I don't know how it turned out.
Have you seen level A software written using C++?