"Rust has a lot of promise, but even now it keeps changing every other week..."
A larger problem, in my opinion, is that things like OpenSSL are used (And should be!) from N other languages. As a result, calling into the library requires almost by definition lowest-common denominator interfaces. Which is C.
C code calling into Rust can certainly be done, but I believe it currently prohibits using much of the standard library, which also removes a lot of the benefits.
C++ doesn't, I think, have as much of a problem there, but I'm somewhat skeptical of C++ as a silver bullet in this case.
A larger problem, in my opinion, is that things like OpenSSL are used (And should be!) from N other languages. As a result, calling into the library requires almost by definition lowest-common denominator interfaces. Which is C.
C code calling into Rust can certainly be done, but I believe it currently prohibits using much of the standard library, which also removes a lot of the benefits.
C++ doesn't, I think, have as much of a problem there, but I'm somewhat skeptical of C++ as a silver bullet in this case.
I don't know about Ada and any other options.
[ATS, anyone?]