Rust C Binding

Library member & application member

1. Set up the build script:
• Create a build.rs file in the application directory.
• Add the necessary lines to link against the library.

2. Prepare the C header file:
• Create a wrapper.h like header file in the library directory.
• Include the required C header file in wrapper.h.

3. Generate Rust bindings:
• Use bindgen to generate the bindings during the build process.
• Bindgen will read wrapper.h and create a Rust file with the bindings, typically placed in the OUT_DIR.

4. Include the bindings in Rust code:
• In library lib.rs, include the generated bindings using include!(concat!(env!("OUT_DIR"), "/bindings.rs"));.

5. Use the C function in Rust:
• In your Rust application, declare the C function using extern "C".
• You can now call c function within your Rust code.