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no_std

core

alloc

std
  • Slices, &str, CStr
  • NonZeroU8…
  • Option, Result
  • Display, Debug, write!…
  • Iterator
  • Error
  • panic!, assert_eq!…
  • NonNull and all the usual pointer-related functions
  • Future and async/await
  • fence, AtomicBool, AtomicPtr, AtomicU32…
  • Duration
  • Box, Cow, Arc, Rc
  • Vec, BinaryHeap, BtreeMap, LinkedList, VecDeque
  • String, CString, format!
  • HashMap
  • Mutex, Condvar, Barrier, Once, RwLock, mpsc
  • File and the rest of fs
  • println!, Read, Write, Stdin, Stdout and the rest of io
  • Path, OsString
  • net
  • Command, Child, ExitCode
  • spawn, sleep and the rest of thread
  • SystemTime, Instant
  • HashMap depends on RNG.
  • std re-exports the contents of both core and alloc.