# Summary * [Meet Safe and Unsafe](meet-safe-and-unsafe.md) * [What Do Safe and Unsafe Mean](safe-unsafe-meaning.md) * [Working with Unsafe](working-with-unsafe.md) * [Data Layout](data.md) * [repr(Rust)](repr-rust.md) * [Exotically Sized Types](exotic-sizes.md) * [Other reprs](other-reprs.md) * [Ownership](ownership.md) * [References](references.md) * [Lifetimes](lifetimes.md) * [Limits of lifetimes](lifetime-mismatch.md) * [Lifetime Elision](lifetime-elision.md) * [Unbounded Lifetimes](unbounded-lifetimes.md) * [Higher-Rank Trait Bounds](hrtb.md) * [Subtyping and Variance](subtyping.md) * [Misc](lifetime-misc.md) * [Type Conversions](conversions.md) * [Coercions](coercions.md) * [The Dot Operator](dot-operator.md) * [Casts](casts.md) * [Transmutes](transmutes.md) * [Uninitialized Memory](uninitialized.md) * [Checked](checked-uninit.md) * [Drop Flags](drop-flags.md) * [Unchecked](unchecked-uninit.md) * [Ownership-Oriented Resource Management](raii.md) * [Constructors](constructors.md) * [Destructors](destructors.md) * [Leaking](leaking.md) * [Unwinding](unwinding.md) * [Concurrency](concurrency.md) * [Races](races.md) * [Send and Sync](send-and-sync.md) * [Atomics](atomics.md) * [Implementing Vec](vec.md) * [Layout](vec-layout.md) * [Allocating](vec-alloc.md) * [Push and Pop](vec-push-pop.md) * [Deallocating](vec-dealloc.md) * [Deref](vec-deref.md) * [Insert and Remove](vec-insert-remove.md) * [IntoIter](vec-into-iter.md) * [Drain](vec-drain.md) * [Final Code](vec-final.md) * [Implementing Arc and Mutex](arc-and-mutex.md)