Memory Layout

Visualizing Rust's Vtables: How dyn Trait Works In Memory

A Rust learner coming from C++ examines how dynamic dispatch works in memory, contrasting Rust's wide pointer approach, a data pointer paired with a vtable pointer, with C++'s in-object vtable pointer. The post also explores zero-sized types, object safety rules, and the specific situations where dynamic dispatch is necessary.

Blog post · Rust · Memory Layout · Systems Programming · C++