alt Hacker News"unsafe" is a promise to the compiler that you're going to ensure invariants that the compiler can't check. Rust only promises to eliminate UB if the invariants are held. You can still get UB by violating that promise, as this bug demonstrates.
"unsafe" is a promise to the compiler that you're going to ensure invariants that the compiler can't check. Rust only promises to eliminate UB if the invariants are held. You can still get UB by violating that promise, as this bug demonstrates.
But the title here says "in safe Rust", no? Is the unsafe code causing UB in safe code? I thought the unsafety couldn't "spread" like that in Rust.