# Trait std::cmp::Eq 1.0.0 [−] [src]

    pub trait Eq: PartialEq<Self> { }

Trait for equality comparisons which are equivalence relations.

This means, that in addition to `a == b` and `a != b` being strict inverses, the equality must be (for all `a`, `b` and `c`):

- reflexive: `a == a`;
- symmetric: `a == b` implies `b == a`; and
- transitive: `a == b` and `b == c` implies `a == c`.

This property cannot be checked by the compiler, and therefore `Eq` implies `PartialEq`, and has no extra methods.

## Derivable

This trait can be used with `#[derive]`. When `derive`d, because `Eq` has no extra methods, it is only informing the compiler that this is an equivalence relation rather than a partial equivalence relation. Note that the `derive` strategy requires all fields are `Eq`, which isn't always desired.

## How can I implement `Eq`?

If you cannot use the `derive` strategy, specify that your type implements `Eq`, which has no methods:

    enum BookFormat { Paperback, Hardback, Ebook }
    struct Book {
        isbn: i32,
        format: BookFormat,
    }
    impl PartialEq for Book {
        fn eq(&self, other: &Book) -> bool {
            self.isbn == other.isbn
        }
    }
    impl Eq for Book {}Run

## Implementations on Foreign Types

### `impl<T> Eq for NonZero<T> where
T: Zeroable + Eq,`
[src]

### `impl Eq for InvalidSequence`
[src]

### `impl<'a> Eq for Utf8LossyChunk<'a>`
[src]

## Implementors

- [src]
  `impl<Ret, A, B, C> Eq for extern "C" fn(A, B, C, ...) -> Ret`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I, J, K> Eq for fn(A, B, C, D, E, F, G, H, I, J, K) -> Ret`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I, J> Eq for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J, ...) -> Ret`
- [src]
  `impl Eq for u16`
- [src]
  `impl<Ret, A, B, C, D, E, F> Eq for extern "C" fn(A, B, C, D, E, F) -> Ret`
- [src]
  `impl Eq for Ordering`
- [src]
  `impl Eq for ParseBoolError`
- [src]
  `impl<T> Eq for [T; 30] where
  T: Eq,`
- [src]
  `impl<Idx> Eq for RangeToInclusive<Idx> where
  Idx: Eq,`
- [src]
  `impl<T> Eq for [T; 11] where
  T: Eq,`
- [src]
  `impl<A, B, C, D, E> Eq for (A, B, C, D, E) where
  A: Eq,
  B: Eq,
  C: Eq,
  D: Eq,
  E: Eq + ?Sized,`
- [src]
  `impl<A, B, C, D, E, F, G, H, I> Eq for (A, B, C, D, E, F, G, H, I) where
  A: Eq,
  B: Eq,
  C: Eq,
  D: Eq,
  E: Eq,
  F: Eq,
  G: Eq,
  H: Eq,
  I: Eq + ?Sized,`
- [src]
  `impl<T> Eq for *mut T where
  T: ?Sized,`
- [src]
  `impl Eq for u32`
- [src]
  `impl<T> Eq for [T] where
  T: Eq,`
- [src]
  `impl<Ret, A, B, C, D, E, F, G> Eq for extern "C" fn(A, B, C, D, E, F, G, ...) -> Ret`
- [src]
  `impl<'a, A> Eq for &'a A where
  A: Eq + ?Sized,`
- [src]
  `impl<T> Eq for [T; 20] where
  T: Eq,`
- [src]
  `impl<T> Eq for RefCell<T> where
  T: Eq + ?Sized,`
- [src]
  `impl<Ret, A, B> Eq for unsafe extern "C" fn(A, B) -> Ret`
- [src]
  `impl<T> Eq for NonNull<T> where
  T: ?Sized,`
- [src]
  `impl Eq for i32`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> Eq for extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, L) -> Ret`
- [src]
  `impl<Ret, A, B> Eq for unsafe extern "C" fn(A, B, ...) -> Ret`
- [src]
  `impl<Ret, A> Eq for extern "C" fn(A) -> Ret`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I> Eq for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, ...) -> Ret`
- [src]
  `impl<T> Eq for [T; 6] where
  T: Eq,`
- [src]
  `impl<A> Eq for (A,) where
  A: Eq + ?Sized,`
- [src]
  `impl<T> Eq for Discriminant<T>`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> Eq for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, L) -> Ret`
- [src]
  `impl<T> Eq for ManuallyDrop<T> where
  T: Eq,`
- [src]
  `impl Eq for CharTryFromError`
- [src]
  `impl<Ret> Eq for unsafe extern "C" fn() -> Ret`
- [src]
  `impl<T> Eq for [T; 32] where
  T: Eq,`
- [src]
  `impl<Idx> Eq for RangeFrom<Idx> where
  Idx: Eq,`
- [src]
  `impl<Ret, A, B, C, D, E, F, G> Eq for unsafe extern "C" fn(A, B, C, D, E, F, G) -> Ret`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H> Eq for extern "C" fn(A, B, C, D, E, F, G, H, ...) -> Ret`
- [src]
  `impl<Ret> Eq for extern "C" fn() -> Ret`
- [src]
  `impl Eq for Infallible`
- [src]
  `impl<Ret, A> Eq for extern "C" fn(A, ...) -> Ret`
- [src]
  `impl<Ret, A, B> Eq for unsafe fn(A, B) -> Ret`
- [src]
  `impl<Ret, A, B, C, D, E> Eq for unsafe fn(A, B, C, D, E) -> Ret`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I> Eq for unsafe fn(A, B, C, D, E, F, G, H, I) -> Ret`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I, J> Eq for extern "C" fn(A, B, C, D, E, F, G, H, I, J) -> Ret`
- [src]
  `impl<Idx> Eq for RangeInclusive<Idx> where
  Idx: Eq,`
- [src]
  `impl<A, B, C, D, E, F> Eq for (A, B, C, D, E, F) where
  A: Eq,
  B: Eq,
  C: Eq,
  D: Eq,
  E: Eq,
  F: Eq + ?Sized,`
- [src]
  `impl<T> Eq for [T; 25] where
  T: Eq,`
- [src]
  `impl Eq for isize`
- [src]
  `impl<Ret> Eq for unsafe fn() -> Ret`
- [src]
  `impl Eq for ParseCharError`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> Eq for unsafe fn(A, B, C, D, E, F, G, H, I, J, K, L) -> Ret`
- [src]
  `impl<T> Eq for [T; 4] where
  T: Eq,`
- [src]
  `impl<A, B, C, D, E, F, G, H, I, J> Eq for (A, B, C, D, E, F, G, H, I, J) where
  A: Eq,
  B: Eq,
  C: Eq,
  D: Eq,
  E: Eq,
  F: Eq,
  G: Eq,
  H: Eq,
  I: Eq,
  J: Eq + ?Sized,`
- [src]
  `impl Eq for FpCategory`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I> Eq for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I) -> Ret`
- [src]
  `impl<Ret, A, B, C> Eq for fn(A, B, C) -> Ret`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> Eq for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, L, ...) -> Ret`
- [src]
  `impl<Ret, A, B, C> Eq for extern "C" fn(A, B, C) -> Ret`
- [src]
  `impl<Ret, A, B, C, D, E, F> Eq for unsafe extern "C" fn(A, B, C, D, E, F, ...) -> Ret`
- [src]
  `impl<Ret, A, B, C, D> Eq for unsafe extern "C" fn(A, B, C, D, ...) -> Ret`
- [src]
  `impl<T> Eq for [T; 7] where
  T: Eq,`
- [src]
  `impl<Ret, A, B, C, D, E, F> Eq for fn(A, B, C, D, E, F) -> Ret`
- [src]
  `impl<T> Eq for [T; 1] where
  T: Eq,`
- [src]
  `impl Eq for ParseFloatError`
- [src]
  `impl<Ret, A> Eq for fn(A) -> Ret`
- [src]
  `impl Eq for Utf8Error`
- [src]
  `impl<T, E> Eq for Result<T, E> where
  E: Eq,
  T: Eq,`
- [src]
  `impl Eq for i64`
- [src]
  `impl<Ret, A> Eq for unsafe extern "C" fn(A) -> Ret`
- [src]
  `impl<Ret, A> Eq for unsafe fn(A) -> Ret`
- [src]
  `impl<T> Eq for [T; 13] where
  T: Eq,`
- [src]
  `impl Eq for usize`
- [src]
  `impl<Ret, A, B, C, D, E, F, G> Eq for fn(A, B, C, D, E, F, G) -> Ret`
- [src]
  `impl<Ret, A, B, C, D, E> Eq for fn(A, B, C, D, E) -> Ret`
- [src]
  `impl<Ret, A, B, C, D, E, F, G> Eq for unsafe extern "C" fn(A, B, C, D, E, F, G, ...) -> Ret`
- [src]
  `impl<T> Eq for [T; 31] where
  T: Eq,`
- [src]
  `impl Eq for Error`
- [src]
  `impl<Ret, A, B, C, D, E> Eq for extern "C" fn(A, B, C, D, E) -> Ret`
- [src]
  `impl<T> Eq for [T; 29] where
  T: Eq,`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I, J, K> Eq for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, ...) -> Ret`
- [src]
  `impl<'a, A> Eq for &'a mut A where
  A: Eq + ?Sized,`
- [src]
  `impl<T> Eq for [T; 21] where
  T: Eq,`
- [src]
  `impl<Ret, A, B, C, D, E> Eq for extern "C" fn(A, B, C, D, E, ...) -> Ret`
- [src]
  `impl Eq for char`
- [src]
  `impl<T> Eq for [T; 27] where
  T: Eq,`
- [src]
  `impl<T> Eq for [T; 16] where
  T: Eq,`
- [src]
  `impl Eq for RangeFull`
- [src]
  `impl<Ret, A, B, C, D, E> Eq for unsafe extern "C" fn(A, B, C, D, E, ...) -> Ret`
- [src]
  `impl Eq for Duration`
- [src]
  `impl<A, B, C, D, E, F, G, H> Eq for (A, B, C, D, E, F, G, H) where
  A: Eq,
  B: Eq,
  C: Eq,
  D: Eq,
  E: Eq,
  F: Eq,
  G: Eq,
  H: Eq + ?Sized,`
- [src]
  `impl Eq for str`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I, J> Eq for unsafe fn(A, B, C, D, E, F, G, H, I, J) -> Ret`
- [src]
  `impl<Ret, A, B, C, D, E, F> Eq for unsafe fn(A, B, C, D, E, F) -> Ret`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I, J, K> Eq for extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, ...) -> Ret`
- [src]
  `impl<A, B, C, D, E, F, G, H, I, J, K, L> Eq for (A, B, C, D, E, F, G, H, I, J, K, L) where
  A: Eq,
  B: Eq,
  C: Eq,
  D: Eq,
  E: Eq,
  F: Eq,
  G: Eq,
  H: Eq,
  I: Eq,
  J: Eq,
  K: Eq,
  L: Eq + ?Sized,`
- [src]
  `impl<T> Eq for [T; 24] where
  T: Eq,`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I, J, K> Eq for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J, K) -> Ret`
- [src]
  `impl<Ret, A, B, C, D, E, F> Eq for unsafe extern "C" fn(A, B, C, D, E, F) -> Ret`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I, J, K> Eq for unsafe fn(A, B, C, D, E, F, G, H, I, J, K) -> Ret`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H> Eq for unsafe extern "C" fn(A, B, C, D, E, F, G, H) -> Ret`
- [src]
  `impl Eq for i8`
- [src]
  `impl<T> Eq for Cell<T> where
  T: Copy + Eq,`
- [src]
  `impl<T> Eq for [T; 23] where
  T: Eq,`
- [src]
  `impl<Ret, A, B, C, D, E, F, G> Eq for unsafe fn(A, B, C, D, E, F, G) -> Ret`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H> Eq for extern "C" fn(A, B, C, D, E, F, G, H) -> Ret`
- [src]
  `impl<T> Eq for [T; 2] where
  T: Eq,`
- [src]
  `impl<Ret> Eq for fn() -> Ret`
- [src]
  `impl<Ret, A, B> Eq for fn(A, B) -> Ret`
- [src]
  `impl<Ret, A, B, C, D> Eq for extern "C" fn(A, B, C, D, ...) -> Ret`
- [src]
  `impl Eq for i128`
- [src]
  `impl Eq for SearchStep`
- [src]
  `impl<A, B, C, D, E, F, G> Eq for (A, B, C, D, E, F, G) where
  A: Eq,
  B: Eq,
  C: Eq,
  D: Eq,
  E: Eq,
  F: Eq,
  G: Eq + ?Sized,`
- [src]
  `impl<T> Eq for [T; 10] where
  T: Eq,`
- [src]
  `impl Eq for NoneError`
- [src]
  `impl<A, B, C, D> Eq for (A, B, C, D) where
  A: Eq,
  B: Eq,
  C: Eq,
  D: Eq + ?Sized,`
- [src]
  `impl<T> Eq for [T; 0] where
  T: Eq,`
- [src]
  `impl<T> Eq for [T; 3] where
  T: Eq,`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H> Eq for fn(A, B, C, D, E, F, G, H) -> Ret`
- [src]
  `impl<T> Eq for [T; 5] where
  T: Eq,`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I> Eq for extern "C" fn(A, B, C, D, E, F, G, H, I, ...) -> Ret`
- [src]
  `impl<Ret, A, B> Eq for extern "C" fn(A, B) -> Ret`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I> Eq for fn(A, B, C, D, E, F, G, H, I) -> Ret`
- [src]
  `impl<T> Eq for [T; 17] where
  T: Eq,`
- [src]
  `impl<Ret, A, B> Eq for extern "C" fn(A, B, ...) -> Ret`
- [src]
  `impl<Idx> Eq for RangeTo<Idx> where
  Idx: Eq,`
- [src]
  `impl Eq for !`
- [src]
  `impl<T> Eq for [T; 26] where
  T: Eq,`
- [src]
  `impl<T> Eq for [T; 28] where
  T: Eq,`
- [src]
  `impl<Y, R> Eq for GeneratorState<Y, R> where
  R: Eq,
  Y: Eq,`
- [src]
  `impl<T> Eq for [T; 8] where
  T: Eq,`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H> Eq for unsafe fn(A, B, C, D, E, F, G, H) -> Ret`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> Eq for extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, L, ...) -> Ret`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I, J> Eq for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J) -> Ret`
- [src]
  `impl<T> Eq for *const T where
  T: ?Sized,`
- [src]
  `impl<Ret, A, B, C> Eq for unsafe extern "C" fn(A, B, C, ...) -> Ret`
- [src]
  `impl Eq for ()`
- [src]
  `impl Eq for u8`
- [src]
  `impl<Ret, A, B, C> Eq for unsafe fn(A, B, C) -> Ret`
- [src]
  `impl<Ret, A, B, C, D> Eq for fn(A, B, C, D) -> Ret`
- [src]
  `impl<Ret, A, B, C, D> Eq for unsafe fn(A, B, C, D) -> Ret`
- [src]
  `impl<T> Eq for [T; 14] where
  T: Eq,`
- [src]
  `impl<Ret, A, B, C, D> Eq for unsafe extern "C" fn(A, B, C, D) -> Ret`
- [src]
  `impl Eq for u128`
- [src]
  `impl Eq for i16`
- [src]
  `impl<Ret, A, B, C, D> Eq for extern "C" fn(A, B, C, D) -> Ret`
- [src]
  `impl Eq for u64`
- [src]
  `impl<Idx> Eq for Range<Idx> where
  Idx: Eq,`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I> Eq for extern "C" fn(A, B, C, D, E, F, G, H, I) -> Ret`
- [src]
  `impl<A, B, C> Eq for (A, B, C) where
  A: Eq,
  B: Eq,
  C: Eq + ?Sized,`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I, J> Eq for extern "C" fn(A, B, C, D, E, F, G, H, I, J, ...) -> Ret`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I, J> Eq for fn(A, B, C, D, E, F, G, H, I, J) -> Ret`
- [src]
  `impl<T> Eq for [T; 15] where
  T: Eq,`
- [src]
  `impl<T> Eq for [T; 9] where
  T: Eq,`
- [src]
  `impl Eq for ParseIntError`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I, J, K> Eq for extern "C" fn(A, B, C, D, E, F, G, H, I, J, K) -> Ret`
- [src]
  `impl<T> Eq for Reverse<T> where
  T: Eq,`
- [src]
  `impl<T> Eq for [T; 18] where
  T: Eq,`
- [src]
  `impl<Ret, A, B, C, D, E, F> Eq for extern "C" fn(A, B, C, D, E, F, ...) -> Ret`
- [src]
  `impl<Ret, A, B, C, D, E> Eq for unsafe extern "C" fn(A, B, C, D, E) -> Ret`
- [src]
  `impl Eq for TypeId`
- [src]
  `impl<T> Eq for [T; 22] where
  T: Eq,`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> Eq for fn(A, B, C, D, E, F, G, H, I, J, K, L) -> Ret`
- [src]
  `impl<Ret, A, B, C> Eq for unsafe extern "C" fn(A, B, C) -> Ret`
- [src]
  `impl<Ret, A, B, C, D, E, F, G> Eq for extern "C" fn(A, B, C, D, E, F, G) -> Ret`
- [src]
  `impl<T> Eq for [T; 12] where
  T: Eq,`
- [src]
  `impl<T> Eq for PhantomData<T> where
  T: ?Sized,`
- [src]
  `impl<Ret, A, B, C, D, E, F, G, H> Eq for unsafe extern "C" fn(A, B, C, D, E, F, G, H, ...) -> Ret`
- [src]
  `impl<A, B> Eq for (A, B) where
  A: Eq,
  B: Eq + ?Sized,`
- [src]
  `impl<Ret, A> Eq for unsafe extern "C" fn(A, ...) -> Ret`
- [src]
  `impl<T> Eq for [T; 19] where
  T: Eq,`
- [src]
  `impl Eq for bool`
- [src]
  `impl<T> Eq for Wrapping<T> where
  T: Eq,`
- [src]
  `impl<A, B, C, D, E, F, G, H, I, J, K> Eq for (A, B, C, D, E, F, G, H, I, J, K) where
  A: Eq,
  B: Eq,
  C: Eq,
  D: Eq,
  E: Eq,
  F: Eq,
  G: Eq,
  H: Eq,
  I: Eq,
  J: Eq,
  K: Eq + ?Sized,`
- [src]
  `impl<T> Eq for Option<T> where
  T: Eq,`
- [src]
  `impl<T> Eq for Rc<T> where
  T: Eq + ?Sized,`
- [src]
  `impl Eq for String`
- [src]
  `impl<T> Eq for LinkedList<T> where
  T: Eq,`
- [src]
  `impl<'a, B> Eq for Cow<'a, B> where
  B: Eq + ToOwned + ?Sized,`
- [src]
  `impl Eq for Layout`
- [src]
  `impl<T> Eq for BTreeSet<T> where
  T: Eq,`
- [src]
  `impl<K, V> Eq for BTreeMap<K, V> where
  K: Eq,
  V: Eq,`
- [src]
  `impl<T> Eq for Arc<T> where
  T: Eq + ?Sized,`
- [src]
  `impl<T> Eq for Bound<T> where
  T: Eq,`
- [src]
  `impl Eq for CannotReallocInPlace`
- [src]
  `impl Eq for ParseError`
- [src]
  `impl Eq for AllocErr`
- [src]
  `impl<A> Eq for VecDeque<A> where
  A: Eq,`
- [src]
  `impl<T> Eq for Box<T> where
  T: Eq + ?Sized,`
- [src]
  `impl<T> Eq for Vec<T> where
  T: Eq,`
- [src]
  `impl Eq for DecodeUtf16Error`
- [src]
  `impl Eq for UnicodeVersion`
- [src]
  `impl Eq for LocalKeyState`
- [src]
  `impl Eq for ThreadId`
- [src]
  `impl<K, V, S> Eq for HashMap<K, V, S> where
  K: Eq + Hash,
  V: Eq,
  S: BuildHasher,`
- [src]
  `impl<T, S> Eq for HashSet<T, S> where
  T: Eq + Hash,
  S: BuildHasher,`
- [src]
  `impl Eq for VarError`
- [src]
  `impl Eq for CString`
- [src]
  `impl Eq for NulError`
- [src]
  `impl Eq for FromBytesWithNulError`
- [src]
  `impl Eq for IntoStringError`
- [src]
  `impl Eq for CStr`
- [src]
  `impl Eq for OsString`
- [src]
  `impl Eq for OsStr`
- [src]
  `impl Eq for Permissions`
- [src]
  `impl Eq for FileType`
- [src]
  `impl Eq for ErrorKind`
- [src]
  `impl Eq for SeekFrom`
- [src]
  `impl Eq for IpAddr`
- [src]
  `impl Eq for Ipv6MulticastScope`
- [src]
  `impl Eq for Ipv4Addr`
- [src]
  `impl Eq for Ipv6Addr`
- [src]
  `impl Eq for SocketAddr`
- [src]
  `impl Eq for SocketAddrV4`
- [src]
  `impl Eq for SocketAddrV6`
- [src]
  `impl Eq for AddrParseError`
- [src]
  `impl Eq for Shutdown`
- [src]
  `impl<'a> Eq for Prefix<'a>`
- [src]
  `impl<'a> Eq for PrefixComponent<'a>`
- [src]
  `impl<'a> Eq for Component<'a>`
- [src]
  `impl<'a> Eq for Components<'a>`
- [src]
  `impl Eq for PathBuf`
- [src]
  `impl Eq for StripPrefixError`
- [src]
  `impl Eq for Path`
- [src]
  `impl Eq for Output`
- [src]
  `impl Eq for ExitStatus`
- [src]
  `impl<T: Eq> Eq for SendError<T>`
- [src]
  `impl Eq for RecvError`
- [src]
  `impl Eq for TryRecvError`
- [src]
  `impl Eq for RecvTimeoutError`
- [src]
  `impl<T: Eq> Eq for TrySendError<T>`
- [src]
  `impl Eq for WaitTimeoutResult`
- [src]
  `impl Eq for Instant`
- [src]
  `impl Eq for SystemTime`

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