Early on, Rust’s goal was to improve Firefox, a large C++ codebase. A bunch of language design decisions were made to ensure this could work well. However, tha

Early on, Rust’s goal was to improve Firefox, a large C++ codebase. A bunch of language design decisions were made to ensure this could work well. However, that doesn’t mean it’s always super easy. C++ interoperated with C even more easily: just compile your code with the new compiler! With Rust, it’s more like FFI. https://cxx.rs/ https://cxx.rs/ is at the forefront here. > it hasn't happened in the decade that Rust has been around This seems to imply that no C++ codebase has had Rust added to it. This is not true, just to be clear, there are. Firefox, for example. Chrome soon. All kinds of things. I also may have misunderstood you!