Rust Unsafe & FFI Programming

Comprehensive guide to unsafe Rust and Foreign Function Interface (FFI) programming based on The Rustonomicon, Unsafe Code Guidelines, and bindgen documentation.

When to Use This Skill

• Writing unsafe Rust code with raw pointers
• Interfacing with C/C++ libraries via FFI
• Creating Rust bindings to C/C++ libraries with bindgen
• Implementing zero-cost abstractions over unsafe code
• Working with uninitialized or untyped memory
• Understanding the boundary between safe and unsafe Rust
• Writing sound unsafe code that doesn't cause undefined behavior

Core References

• The Rustonomicon - The definitive guide to unsafe Rust
• Unsafe Code Guidelines - What unsafe code can and cannot do
• bindgen User Guide - Automatic FFI binding generation