Module prelude Copy item path Source fmt Utilities for formatting and printing Strings. btreemap btreeset format Creates a String using interpolation of runtime expressions. hashmap hashset indexmap indexset vec Creates a Vec Arc A thread-safe reference-counting pointer. ‘Arc’ stands for ‘Atomically
Reference Counted’. BTreeMap An ordered map based on a B-Tree . BTreeSet An ordered set based on a B-Tree. BorrowError An error returned by RefCell::try_borrow BorrowMutError An error returned by RefCell::try_borrow_mut Box A pointer type that uniquely owns a heap allocation of type T. Cell A mutable memory location. LazyCell A value which is initialized on the first access. LinkedList A doubly-linked list with owned nodes. NonIterMap A thin wrapper around a HashMap, which guarantees that a HashMap usage will not
result in a non-deterministic execution (simply by disallowing the iteration over its
elements). OnceCell A cell which can nominally be written to only once. PhantomData Zero-sized type used to mark things that “act like” they own a T. Rc A single-threaded reference-counting pointer. ‘Rc’ stands for ‘Reference
Counted’. Ref Wraps a borrowed reference to a value in a RefCell box.
A wrapper type for an immutably borrowed value from a RefCell<T>. RefCell A mutable memory location with dynamically checked borrow rules RefMut A wrapper type for a mutably borrowed value from a RefCell<T>. String A UTF-8–encoded, growable string. UnsafeCell The core primitive for interior mutability in Rust. Vec A contiguous growable array type, written as Vec<T>, short for ‘vector’. VecDeque A double-ended queue implemented with a growable ring buffer. SyncUnsafeCell Experimental UnsafeCellSyncCow A clone-on-write smart pointer. Option The Option type. See the module level documentation for more. Result Result is a type that represents either success (OkErrAsMut Used to do a cheap mutable-to-mutable reference conversion. AsRef Used to do a cheap reference-to-reference conversion. Clone A common trait for the ability to explicitly duplicate an object. Copy Types whose values can be duplicated simply by copying bits. Debug ? formatting.Default A trait for giving a type a useful default value. Display Format trait for an empty format, {}. DoubleEndedIterator An iterator able to yield elements from both ends. Drop Custom code within the destructor. Eq Trait for comparisons corresponding to equivalence relations . ExactSizeIterator An iterator that knows its exact length. Extend Extend a collection with the contents of an iterator. Fn The version of the call operator that takes an immutable receiver. FnMut The version of the call operator that takes a mutable receiver. FnOnce The version of the call operator that takes a by-value receiver. From Used to do value-to-value conversions while consuming the input value. It is the reciprocal of
Into FromIterator Conversion from an Iterator FromStr Parse a value from a string Into A value-to-value conversion that consumes the input value. The
opposite of From IntoIterator Conversion into an Iterator Iterator A trait for dealing with iterators. Ord Trait for types that form a total order . PartialEq Trait for comparisons using the equality operator. PartialOrd Trait for types that form a partial order . Send Types that can be transferred across thread boundaries. Sized Types with a constant size known at compile time. Sync Types for which it is safe to share references between threads. ToOwned A generalization of Clone to borrowed data. ToString A trait for converting a value to a String. TryFrom Simple and safe type conversions that may fail in a controlled
way under some circumstances. It is the reciprocal of TryInto TryInto An attempted conversion that consumes self, which may or may not be
expensive. Unpin Types that do not require any pinning guarantees. drop Disposes of a value. hash_map_new Creates an empty map with capacity 0 and default Hasher hash_map_with_capacity Creates an empty map with given capacity and default Hasher hash_set_new Creates an empty set with capacity 0 and default Hasher hash_set_with_capacity Creates an empty set with given capacity and default Hasher index_map_new This is safe for std and no-std use cases (unlike IndexMap::new which disappears when std is not in the toolchain - see
this article for deep technical reasons) index_map_with_capacity This is safe for std and no-std use cases (unlike IndexMap::with_capacity which disappears when std is not in the toolchain - see
this article for deep technical reasons) index_set_new This is safe for std and no-std use cases (unlike IndexSet::new which disappears when std is not in the toolchain - see
this article for deep technical reasons) index_set_with_capacity This is safe for std and no-std use cases (unlike IndexSet::with_capacity which disappears when std is not in the toolchain - see
this article for deep technical reasons) HashMap HashSet IndexMap IndexSet Clone Derive macro generating an impl of the trait Clone. Copy Derive macro generating an impl of the trait Copy. Debug Derive macro generating an impl of the trait Debug. Default Derive macro generating an impl of the trait Default. Eq Derive macro generating an impl of the trait Eq Ord Derive macro generating an impl of the trait Ordhere . PartialEq Derive macro generating an impl of the trait PartialEqhere . PartialOrd Derive macro generating an impl of the trait PartialOrdhere .