Rust Functions from Julia: `ccall`, Shared Libraries, Array Pointers, and GC Safety

A practical two-hour session on Rust Functions from Julia, focused on ccall, Shared Libraries, Array Pointers, and GC Safety. The session treats Rust as a native component exposed through C-compatible boundaries, with attention to packaging, ownership, host-runtime tests, and failure handling.

Audience: entry-level and intermediate developers who want a practical engineering session, not a language tour.

Outcomes:

• Explain the practical boundaries of Rust Functions from Julia
• Apply ccall in a small working example
• Apply Shared Libraries in a small working example
• Apply Array Pointers in a small working example

Format: two hours with a short framing walkthrough, a concrete example, discussion of tradeoffs, and a closing checklist for practice.