Rust Cpp Interoperability example

This is an example of 2 simple Rust programs that call C and C++ library back and forth. For Rust and C++, Rust program is in rust-and-cpp and C++ library is in cpp-lib (cpp-lib static library). For Rust and C, Rust program is in rust-and-c and C library is in cpp-lib (c-lib static library).

Building

You might need to install libclang-dev first.

Compiling all:

1. go to cpp directory: cd cpp-lib
2. build library using cmake: cmake --build . (builds both c-lib and cpp-lib)
3. go to rust directory: cd ../rust-and-c or cd ../rust-and-cpp
4. build rust program using carog: cargo build
5. run rust program: cargo run

Note that C++ and C code is build independently. It means that cpp library could be also provided as .so or .a by your existing build pipeline without rebuilding everything from scratch in Rust build.

This code is part of my blog article https://kuczma.dev/articles/rust-and-cpp/.