bindgen’s C++ support is better than it used to be, but still pretty limited, e.g. no support for inline functions, or their moral equivalent, methods defined within a class definition (which most C++ code has a ton of). And even if it works, to quote the documentation:

> using [C++] types in Rust will be nowhere near as nice as using them in C++. You will have to manually call constructors, destructors, overloaded operators, etc yourself.

source: https://github.com/rust-lang-nursery/rust-bindgen/blob/maste...