Staying a little more focused, I have reasons for none of the languages you mention, but in terms of ease of integration of C and Rust, here’s one real world ex

Staying a little more focused, I have reasons for none of the languages you mention, but in terms of ease of integration of C and Rust, here’s one real world example: https://people.gnome.org/~federico/blog/librsvg-build-infrastructure.html https://people.gnome.org/~federico/blog/librsvg-build-infras... Which recently passed a milestone of having less C than Rust: https://www.reddit.com/r/rust/comments/8ofa0w/librsvg_has_now_more_rust_code_than_c_code/?st=JI35DG9U&sh=2e2ab3ec https://www.reddit.com/r/rust/comments/8ofa0w/librsvg_has_no... At this point I personally find it much easier to move C to Rust than C++, and end up with a much safer codebase.