I still wonder why valve is that much reluctant at porting its proton stuff into the simple and plain C99 of wine/vkd3d.
replies(2):
Modern C++ with move semantics is a lot more easy to reason about and memory safe than C99, IMO.
Since it's a greenfield project, they didn't have to worry about the nasty baggage of legacy C++ spaghetti that kills most projects.
Just because you prefer "simple" C99 doesn't mean they do :)