[branchless]

The only advantage of c++ is max perf. If we could skip a beat we couldn't justify using c++.

[pjmlp]

It is still wins in "portability + expressiveness + safer than C" areas.

There are still more platforms with a C++ compiler available than Ada, Java or C# ones, let alone Go, D, Rust, Swift.

So if the goal is to make the code available to all platforms, without having to deal with C's lack of safety, then C++ it is.