Trait core::cmp::PartialEq 1.0.0[−][src]
Trait for equality comparisons which are partial equivalence relations.
This trait allows for partial equality, for types that do not have a full
equivalence relation. For example, in floating point numbers NaN != NaN,
so floating point types implement PartialEq but not Eq.
Formally, the equality must be (for all a, b, c of type A, B,
C):
-
Symmetric: if
A: PartialEq<B>andB: PartialEq<A>, thena == bimpliesb == a; and -
Transitive: if
A: PartialEq<B>andB: PartialEq<C>andA: PartialEq<C>, thena == bandb == cimpliesa == c.
Note that the B: PartialEq<A> (symmetric) and A: PartialEq<C>
(transitive) impls are not forced to exist, but these requirements apply
whenever they do exist.
Derivable
This trait can be used with #[derive]. When derived on structs, two
instances are equal if all fields are equal, and not equal if any fields
are not equal. When derived on enums, each variant is equal to itself
and not equal to the other variants.
How can I implement PartialEq?
PartialEq only requires the eq method to be implemented; ne is defined
in terms of it by default. Any manual implementation of ne must respect
the rule that eq is a strict inverse of ne; that is, !(a == b) if and
only if a != b.
Implementations of PartialEq, PartialOrd, and Ord must agree with
each other. It’s easy to accidentally make them disagree by deriving some
of the traits and manually implementing others.
An example implementation for a domain in which two books are considered the same book if their ISBN matches, even if the formats differ:
enum BookFormat { Paperback, Hardback, Ebook, } struct Book { isbn: i32, format: BookFormat, } impl PartialEq for Book { fn eq(&self, other: &Self) -> bool { self.isbn == other.isbn } } let b1 = Book { isbn: 3, format: BookFormat::Paperback }; let b2 = Book { isbn: 3, format: BookFormat::Ebook }; let b3 = Book { isbn: 10, format: BookFormat::Paperback }; assert!(b1 == b2); assert!(b1 != b3);Run
How can I compare two different types?
The type you can compare with is controlled by PartialEq’s type parameter.
For example, let’s tweak our previous code a bit:
// The derive implements <BookFormat> == <BookFormat> comparisons #[derive(PartialEq)] enum BookFormat { Paperback, Hardback, Ebook, } struct Book { isbn: i32, format: BookFormat, } // Implement <Book> == <BookFormat> comparisons impl PartialEq<BookFormat> for Book { fn eq(&self, other: &BookFormat) -> bool { self.format == *other } } // Implement <BookFormat> == <Book> comparisons impl PartialEq<Book> for BookFormat { fn eq(&self, other: &Book) -> bool { *self == other.format } } let b1 = Book { isbn: 3, format: BookFormat::Paperback }; assert!(b1 == BookFormat::Paperback); assert!(BookFormat::Ebook != b1);Run
By changing impl PartialEq for Book to impl PartialEq<BookFormat> for Book,
we allow BookFormats to be compared with Books.
A comparison like the one above, which ignores some fields of the struct,
can be dangerous. It can easily lead to an unintended violation of the
requirements for a partial equivalence relation. For example, if we kept
the above implementation of PartialEq<Book> for BookFormat and added an
implementation of PartialEq<Book> for Book (either via a #[derive] or
via the manual implementation from the first example) then the result would
violate transitivity:
#[derive(PartialEq)] enum BookFormat { Paperback, Hardback, Ebook, } #[derive(PartialEq)] struct Book { isbn: i32, format: BookFormat, } impl PartialEq<BookFormat> for Book { fn eq(&self, other: &BookFormat) -> bool { self.format == *other } } impl PartialEq<Book> for BookFormat { fn eq(&self, other: &Book) -> bool { *self == other.format } } fn main() { let b1 = Book { isbn: 1, format: BookFormat::Paperback }; let b2 = Book { isbn: 2, format: BookFormat::Paperback }; assert!(b1 == BookFormat::Paperback); assert!(BookFormat::Paperback == b2); // The following should hold by transitivity but doesn't. assert!(b1 == b2); // <-- PANICS }Run
Examples
let x: u32 = 0; let y: u32 = 1; assert_eq!(x == y, false); assert_eq!(x.eq(&y), false);Run
Required methods
#[must_use]fn eq(&self, other: &Rhs) -> bool[src]
This method tests for self and other values to be equal, and is used
by ==.
Provided methods
Loading content...Implementors
impl PartialEq<!> for ![src]
impl PartialEq<()> for ()[src]
impl PartialEq<Ordering> for core::cmp::Ordering[src]
impl PartialEq<Infallible> for Infallible1.34.0[src]
fn eq(&self, _: &Infallible) -> bool[src]
impl PartialEq<FpCategory> for FpCategory[src]
fn eq(&self, other: &FpCategory) -> bool[src]
impl PartialEq<IntErrorKind> for IntErrorKind[src]
fn eq(&self, other: &IntErrorKind) -> bool[src]
impl PartialEq<SearchStep> for SearchStep[src]
fn eq(&self, other: &SearchStep) -> bool[src]
fn ne(&self, other: &SearchStep) -> bool[src]
impl PartialEq<Ordering> for core::sync::atomic::Ordering[src]
impl PartialEq<AllocError> for AllocError[src]
fn eq(&self, other: &AllocError) -> bool[src]
impl PartialEq<Layout> for Layout1.28.0[src]
impl PartialEq<LayoutError> for LayoutError1.50.0[src]
fn eq(&self, other: &LayoutError) -> bool[src]
fn ne(&self, other: &LayoutError) -> bool[src]
impl PartialEq<TypeId> for TypeId[src]
impl PartialEq<CpuidResult> for CpuidResult1.27.0[src]
fn eq(&self, other: &CpuidResult) -> bool[src]
fn ne(&self, other: &CpuidResult) -> bool[src]
impl PartialEq<CharTryFromError> for CharTryFromError1.34.0[src]
fn eq(&self, other: &CharTryFromError) -> bool[src]
fn ne(&self, other: &CharTryFromError) -> bool[src]
impl PartialEq<DecodeUtf16Error> for DecodeUtf16Error1.9.0[src]
fn eq(&self, other: &DecodeUtf16Error) -> bool[src]
fn ne(&self, other: &DecodeUtf16Error) -> bool[src]
impl PartialEq<ParseCharError> for ParseCharError1.20.0[src]
fn eq(&self, other: &ParseCharError) -> bool[src]
fn ne(&self, other: &ParseCharError) -> bool[src]
impl PartialEq<Error> for Error[src]
impl PartialEq<PhantomPinned> for PhantomPinned1.33.0[src]
fn eq(&self, other: &PhantomPinned) -> bool[src]
impl PartialEq<NonZeroI8> for NonZeroI81.34.0[src]
impl PartialEq<NonZeroI16> for NonZeroI161.34.0[src]
fn eq(&self, other: &NonZeroI16) -> bool[src]
fn ne(&self, other: &NonZeroI16) -> bool[src]
impl PartialEq<NonZeroI32> for NonZeroI321.34.0[src]
fn eq(&self, other: &NonZeroI32) -> bool[src]
fn ne(&self, other: &NonZeroI32) -> bool[src]
impl PartialEq<NonZeroI64> for NonZeroI641.34.0[src]
fn eq(&self, other: &NonZeroI64) -> bool[src]
fn ne(&self, other: &NonZeroI64) -> bool[src]
impl PartialEq<NonZeroI128> for NonZeroI1281.34.0[src]
fn eq(&self, other: &NonZeroI128) -> bool[src]
fn ne(&self, other: &NonZeroI128) -> bool[src]
impl PartialEq<NonZeroIsize> for NonZeroIsize1.34.0[src]
fn eq(&self, other: &NonZeroIsize) -> bool[src]
fn ne(&self, other: &NonZeroIsize) -> bool[src]
impl PartialEq<NonZeroU8> for NonZeroU81.28.0[src]
impl PartialEq<NonZeroU16> for NonZeroU161.28.0[src]
fn eq(&self, other: &NonZeroU16) -> bool[src]
fn ne(&self, other: &NonZeroU16) -> bool[src]
impl PartialEq<NonZeroU32> for NonZeroU321.28.0[src]
fn eq(&self, other: &NonZeroU32) -> bool[src]
fn ne(&self, other: &NonZeroU32) -> bool[src]
impl PartialEq<NonZeroU64> for NonZeroU641.28.0[src]
fn eq(&self, other: &NonZeroU64) -> bool[src]
fn ne(&self, other: &NonZeroU64) -> bool[src]
impl PartialEq<NonZeroU128> for NonZeroU1281.28.0[src]
fn eq(&self, other: &NonZeroU128) -> bool[src]
fn ne(&self, other: &NonZeroU128) -> bool[src]
impl PartialEq<NonZeroUsize> for NonZeroUsize1.28.0[src]
fn eq(&self, other: &NonZeroUsize) -> bool[src]
fn ne(&self, other: &NonZeroUsize) -> bool[src]
impl PartialEq<ParseFloatError> for ParseFloatError[src]
fn eq(&self, other: &ParseFloatError) -> bool[src]
fn ne(&self, other: &ParseFloatError) -> bool[src]
impl PartialEq<ParseIntError> for ParseIntError[src]
fn eq(&self, other: &ParseIntError) -> bool[src]
fn ne(&self, other: &ParseIntError) -> bool[src]
impl PartialEq<TryFromIntError> for TryFromIntError1.34.0[src]
fn eq(&self, other: &TryFromIntError) -> bool[src]
fn ne(&self, other: &TryFromIntError) -> bool[src]
impl PartialEq<RangeFull> for RangeFull[src]
impl PartialEq<NoneError> for NoneError[src]
impl PartialEq<ParseBoolError> for ParseBoolError[src]
fn eq(&self, other: &ParseBoolError) -> bool[src]
fn ne(&self, other: &ParseBoolError) -> bool[src]
impl PartialEq<Utf8Error> for Utf8Error[src]
impl PartialEq<RawWaker> for RawWaker1.36.0[src]
impl PartialEq<RawWakerVTable> for RawWakerVTable1.36.0[src]
fn eq(&self, other: &RawWakerVTable) -> bool[src]
fn ne(&self, other: &RawWakerVTable) -> bool[src]
impl PartialEq<Duration> for Duration1.3.0[src]
impl PartialEq<bool> for bool[src]
impl PartialEq<char> for char[src]
impl PartialEq<f32> for f32[src]
impl PartialEq<f64> for f64[src]
impl PartialEq<i8> for i8[src]
impl PartialEq<i16> for i16[src]
impl PartialEq<i32> for i32[src]
impl PartialEq<i64> for i64[src]
impl PartialEq<i128> for i128[src]
impl PartialEq<isize> for isize[src]
impl PartialEq<str> for str[src]
impl PartialEq<u8> for u8[src]
impl PartialEq<u16> for u16[src]
impl PartialEq<u32> for u32[src]
impl PartialEq<u64> for u64[src]
impl PartialEq<u128> for u128[src]
impl PartialEq<usize> for usize[src]
impl<'a> PartialEq<Location<'a>> for Location<'a>1.10.0[src]
impl<'a> PartialEq<Utf8LossyChunk<'a>> for Utf8LossyChunk<'a>[src]
fn eq(&self, other: &Utf8LossyChunk<'a>) -> bool[src]
fn ne(&self, other: &Utf8LossyChunk<'a>) -> bool[src]
impl<A> PartialEq<(A,)> for (A,) where
A: PartialEq + ?Sized, [src]
A: PartialEq + ?Sized,
impl<A, B> PartialEq<[B]> for [A] where
A: PartialEq<B>, [src]
A: PartialEq<B>,
impl<A, B, const N: usize> PartialEq<&'_ [B]> for [A; N] where
A: PartialEq<B>, [src]
A: PartialEq<B>,
impl<A, B, const N: usize> PartialEq<&'_ mut [B]> for [A; N] where
A: PartialEq<B>, [src]
A: PartialEq<B>,
impl<A, B, const N: usize> PartialEq<[A; N]> for &[B] where
B: PartialEq<A>, [src]
B: PartialEq<A>,
impl<A, B, const N: usize> PartialEq<[A; N]> for &mut [B] where
B: PartialEq<A>, [src]
B: PartialEq<A>,
impl<A, B, const N: usize> PartialEq<[A; N]> for [B] where
B: PartialEq<A>, [src]
B: PartialEq<A>,
impl<A, B, const N: usize> PartialEq<[B; N]> for [A; N] where
A: PartialEq<B>, [src]
A: PartialEq<B>,
impl<A, B, const N: usize> PartialEq<[B]> for [A; N] where
A: PartialEq<B>, [src]
A: PartialEq<B>,
impl<A: PartialEq, B> PartialEq<(A, B)> for (A, B) where
B: PartialEq + ?Sized, [src]
B: PartialEq + ?Sized,
impl<A: PartialEq, B: PartialEq, C> PartialEq<(A, B, C)> for (A, B, C) where
C: PartialEq + ?Sized, [src]
C: PartialEq + ?Sized,
impl<A: PartialEq, B: PartialEq, C: PartialEq, D> PartialEq<(A, B, C, D)> for (A, B, C, D) where
D: PartialEq + ?Sized, [src]
D: PartialEq + ?Sized,
impl<A: PartialEq, B: PartialEq, C: PartialEq, D: PartialEq, E> PartialEq<(A, B, C, D, E)> for (A, B, C, D, E) where
E: PartialEq + ?Sized, [src]
E: PartialEq + ?Sized,
fn eq(&self, other: &(A, B, C, D, E)) -> bool[src]
fn ne(&self, other: &(A, B, C, D, E)) -> bool[src]
impl<A: PartialEq, B: PartialEq, C: PartialEq, D: PartialEq, E: PartialEq, F> PartialEq<(A, B, C, D, E, F)> for (A, B, C, D, E, F) where
F: PartialEq + ?Sized, [src]
F: PartialEq + ?Sized,
fn eq(&self, other: &(A, B, C, D, E, F)) -> bool[src]
fn ne(&self, other: &(A, B, C, D, E, F)) -> bool[src]
impl<A: PartialEq, B: PartialEq, C: PartialEq, D: PartialEq, E: PartialEq, F: PartialEq, G> PartialEq<(A, B, C, D, E, F, G)> for (A, B, C, D, E, F, G) where
G: PartialEq + ?Sized, [src]
G: PartialEq + ?Sized,
fn eq(&self, other: &(A, B, C, D, E, F, G)) -> bool[src]
fn ne(&self, other: &(A, B, C, D, E, F, G)) -> bool[src]
impl<A: PartialEq, B: PartialEq, C: PartialEq, D: PartialEq, E: PartialEq, F: PartialEq, G: PartialEq, H> PartialEq<(A, B, C, D, E, F, G, H)> for (A, B, C, D, E, F, G, H) where
H: PartialEq + ?Sized, [src]
H: PartialEq + ?Sized,
fn eq(&self, other: &(A, B, C, D, E, F, G, H)) -> bool[src]
fn ne(&self, other: &(A, B, C, D, E, F, G, H)) -> bool[src]
impl<A: PartialEq, B: PartialEq, C: PartialEq, D: PartialEq, E: PartialEq, F: PartialEq, G: PartialEq, H: PartialEq, I> PartialEq<(A, B, C, D, E, F, G, H, I)> for (A, B, C, D, E, F, G, H, I) where
I: PartialEq + ?Sized, [src]
I: PartialEq + ?Sized,
fn eq(&self, other: &(A, B, C, D, E, F, G, H, I)) -> bool[src]
fn ne(&self, other: &(A, B, C, D, E, F, G, H, I)) -> bool[src]
impl<A: PartialEq, B: PartialEq, C: PartialEq, D: PartialEq, E: PartialEq, F: PartialEq, G: PartialEq, H: PartialEq, I: PartialEq, J> PartialEq<(A, B, C, D, E, F, G, H, I, J)> for (A, B, C, D, E, F, G, H, I, J) where
J: PartialEq + ?Sized, [src]
J: PartialEq + ?Sized,
fn eq(&self, other: &(A, B, C, D, E, F, G, H, I, J)) -> bool[src]
fn ne(&self, other: &(A, B, C, D, E, F, G, H, I, J)) -> bool[src]
impl<A: PartialEq, B: PartialEq, C: PartialEq, D: PartialEq, E: PartialEq, F: PartialEq, G: PartialEq, H: PartialEq, I: PartialEq, J: PartialEq, K> PartialEq<(A, B, C, D, E, F, G, H, I, J, K)> for (A, B, C, D, E, F, G, H, I, J, K) where
K: PartialEq + ?Sized, [src]
K: PartialEq + ?Sized,
fn eq(&self, other: &(A, B, C, D, E, F, G, H, I, J, K)) -> bool[src]
fn ne(&self, other: &(A, B, C, D, E, F, G, H, I, J, K)) -> bool[src]
impl<A: PartialEq, B: PartialEq, C: PartialEq, D: PartialEq, E: PartialEq, F: PartialEq, G: PartialEq, H: PartialEq, I: PartialEq, J: PartialEq, K: PartialEq, L> PartialEq<(A, B, C, D, E, F, G, H, I, J, K, L)> for (A, B, C, D, E, F, G, H, I, J, K, L) where
L: PartialEq + ?Sized, [src]
L: PartialEq + ?Sized,
fn eq(&self, other: &(A, B, C, D, E, F, G, H, I, J, K, L)) -> bool[src]
fn ne(&self, other: &(A, B, C, D, E, F, G, H, I, J, K, L)) -> bool[src]
impl<A: ?Sized, B: ?Sized> PartialEq<&'_ B> for &A where
A: PartialEq<B>, [src]
A: PartialEq<B>,
impl<A: ?Sized, B: ?Sized> PartialEq<&'_ B> for &mut A where
A: PartialEq<B>, [src]
A: PartialEq<B>,
impl<A: ?Sized, B: ?Sized> PartialEq<&'_ mut B> for &A where
A: PartialEq<B>, [src]
A: PartialEq<B>,
impl<A: ?Sized, B: ?Sized> PartialEq<&'_ mut B> for &mut A where
A: PartialEq<B>, [src]
A: PartialEq<B>,
impl<B: PartialEq, C: PartialEq> PartialEq<ControlFlow<B, C>> for ControlFlow<B, C>[src]
fn eq(&self, other: &ControlFlow<B, C>) -> bool[src]
fn ne(&self, other: &ControlFlow<B, C>) -> bool[src]
impl<Dyn: ?Sized> PartialEq<DynMetadata<Dyn>> for DynMetadata<Dyn>[src]
impl<H> PartialEq<BuildHasherDefault<H>> for BuildHasherDefault<H>1.29.0[src]
fn eq(&self, _other: &BuildHasherDefault<H>) -> bool[src]
impl<Idx: PartialEq> PartialEq<Range<Idx>> for Range<Idx>[src]
impl<Idx: PartialEq> PartialEq<RangeFrom<Idx>> for RangeFrom<Idx>[src]
impl<Idx: PartialEq> PartialEq<RangeInclusive<Idx>> for RangeInclusive<Idx>1.26.0[src]
fn eq(&self, other: &RangeInclusive<Idx>) -> bool[src]
fn ne(&self, other: &RangeInclusive<Idx>) -> bool[src]
impl<Idx: PartialEq> PartialEq<RangeTo<Idx>> for RangeTo<Idx>[src]
impl<Idx: PartialEq> PartialEq<RangeToInclusive<Idx>> for RangeToInclusive<Idx>1.26.0[src]
fn eq(&self, other: &RangeToInclusive<Idx>) -> bool[src]
fn ne(&self, other: &RangeToInclusive<Idx>) -> bool[src]
impl<P: Deref, Q: Deref> PartialEq<Pin<Q>> for Pin<P> where
P::Target: PartialEq<Q::Target>, 1.41.0[src]
P::Target: PartialEq<Q::Target>,
impl<Ret> PartialEq<extern "C" fn() -> Ret> for extern "C" fn() -> Ret1.4.0[src]
impl<Ret> PartialEq<fn() -> Ret> for fn() -> Ret1.4.0[src]
impl<Ret> PartialEq<unsafe extern "C" fn() -> Ret> for unsafe extern "C" fn() -> Ret1.4.0[src]
impl<Ret> PartialEq<unsafe fn() -> Ret> for unsafe fn() -> Ret1.4.0[src]
impl<Ret, A> PartialEq<extern "C" fn(A) -> Ret> for extern "C" fn(_: A) -> Ret1.4.0[src]
impl<Ret, A> PartialEq<extern "C" fn(A, ...) -> Ret> for extern "C" fn(_: A, ...) -> Ret1.4.0[src]
impl<Ret, A> PartialEq<fn(A) -> Ret> for fn(_: A) -> Ret1.4.0[src]
impl<Ret, A> PartialEq<unsafe extern "C" fn(A) -> Ret> for unsafe extern "C" fn(_: A) -> Ret1.4.0[src]
impl<Ret, A> PartialEq<unsafe extern "C" fn(A, ...) -> Ret> for unsafe extern "C" fn(_: A, ...) -> Ret1.4.0[src]
impl<Ret, A> PartialEq<unsafe fn(A) -> Ret> for unsafe fn(_: A) -> Ret1.4.0[src]
impl<Ret, A, B> PartialEq<extern "C" fn(A, B) -> Ret> for extern "C" fn(_: A, _: B) -> Ret1.4.0[src]
impl<Ret, A, B> PartialEq<extern "C" fn(A, B, ...) -> Ret> for extern "C" fn(_: A, _: B, ...) -> Ret1.4.0[src]
impl<Ret, A, B> PartialEq<fn(A, B) -> Ret> for fn(_: A, _: B) -> Ret1.4.0[src]
impl<Ret, A, B> PartialEq<unsafe extern "C" fn(A, B) -> Ret> for unsafe extern "C" fn(_: A, _: B) -> Ret1.4.0[src]
impl<Ret, A, B> PartialEq<unsafe extern "C" fn(A, B, ...) -> Ret> for unsafe extern "C" fn(_: A, _: B, ...) -> Ret1.4.0[src]
impl<Ret, A, B> PartialEq<unsafe fn(A, B) -> Ret> for unsafe fn(_: A, _: B) -> Ret1.4.0[src]
impl<Ret, A, B, C> PartialEq<extern "C" fn(A, B, C) -> Ret> for extern "C" fn(_: A, _: B, _: C) -> Ret1.4.0[src]
impl<Ret, A, B, C> PartialEq<extern "C" fn(A, B, C, ...) -> Ret> for extern "C" fn(_: A, _: B, _: C, ...) -> Ret1.4.0[src]
impl<Ret, A, B, C> PartialEq<fn(A, B, C) -> Ret> for fn(_: A, _: B, _: C) -> Ret1.4.0[src]
impl<Ret, A, B, C> PartialEq<unsafe extern "C" fn(A, B, C) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C) -> Ret1.4.0[src]
impl<Ret, A, B, C> PartialEq<unsafe extern "C" fn(A, B, C, ...) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, ...) -> Ret1.4.0[src]
impl<Ret, A, B, C> PartialEq<unsafe fn(A, B, C) -> Ret> for unsafe fn(_: A, _: B, _: C) -> Ret1.4.0[src]
impl<Ret, A, B, C, D> PartialEq<extern "C" fn(A, B, C, D) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D) -> Ret1.4.0[src]
impl<Ret, A, B, C, D> PartialEq<extern "C" fn(A, B, C, D, ...) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, ...) -> Ret1.4.0[src]
impl<Ret, A, B, C, D> PartialEq<fn(A, B, C, D) -> Ret> for fn(_: A, _: B, _: C, _: D) -> Ret1.4.0[src]
impl<Ret, A, B, C, D> PartialEq<unsafe extern "C" fn(A, B, C, D) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D) -> Ret1.4.0[src]
impl<Ret, A, B, C, D> PartialEq<unsafe extern "C" fn(A, B, C, D, ...) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D, ...) -> Ret1.4.0[src]
impl<Ret, A, B, C, D> PartialEq<unsafe fn(A, B, C, D) -> Ret> for unsafe fn(_: A, _: B, _: C, _: D) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E> PartialEq<extern "C" fn(A, B, C, D, E) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, _: E) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E> PartialEq<extern "C" fn(A, B, C, D, E, ...) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, _: E, ...) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E> PartialEq<fn(A, B, C, D, E) -> Ret> for fn(_: A, _: B, _: C, _: D, _: E) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E> PartialEq<unsafe extern "C" fn(A, B, C, D, E) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D, _: E) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E> PartialEq<unsafe extern "C" fn(A, B, C, D, E, ...) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D, _: E, ...) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E> PartialEq<unsafe fn(A, B, C, D, E) -> Ret> for unsafe fn(_: A, _: B, _: C, _: D, _: E) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F> PartialEq<extern "C" fn(A, B, C, D, E, F) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F> PartialEq<extern "C" fn(A, B, C, D, E, F, ...) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, ...) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F> PartialEq<fn(A, B, C, D, E, F) -> Ret> for fn(_: A, _: B, _: C, _: D, _: E, _: F) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F> PartialEq<unsafe extern "C" fn(A, B, C, D, E, F) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F> PartialEq<unsafe extern "C" fn(A, B, C, D, E, F, ...) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, ...) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F> PartialEq<unsafe fn(A, B, C, D, E, F) -> Ret> for unsafe fn(_: A, _: B, _: C, _: D, _: E, _: F) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G> PartialEq<extern "C" fn(A, B, C, D, E, F, G) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G> PartialEq<extern "C" fn(A, B, C, D, E, F, G, ...) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, ...) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G> PartialEq<fn(A, B, C, D, E, F, G) -> Ret> for fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G> PartialEq<unsafe extern "C" fn(A, B, C, D, E, F, G) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G> PartialEq<unsafe extern "C" fn(A, B, C, D, E, F, G, ...) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, ...) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G> PartialEq<unsafe fn(A, B, C, D, E, F, G) -> Ret> for unsafe fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H> PartialEq<extern "C" fn(A, B, C, D, E, F, G, H) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H> PartialEq<extern "C" fn(A, B, C, D, E, F, G, H, ...) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, ...) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H> PartialEq<fn(A, B, C, D, E, F, G, H) -> Ret> for fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H> PartialEq<unsafe extern "C" fn(A, B, C, D, E, F, G, H) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H> PartialEq<unsafe extern "C" fn(A, B, C, D, E, F, G, H, ...) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, ...) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H> PartialEq<unsafe fn(A, B, C, D, E, F, G, H) -> Ret> for unsafe fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I> PartialEq<extern "C" fn(A, B, C, D, E, F, G, H, I) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I> PartialEq<extern "C" fn(A, B, C, D, E, F, G, H, I, ...) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I, ...) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I> PartialEq<fn(A, B, C, D, E, F, G, H, I) -> Ret> for fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I> PartialEq<unsafe extern "C" fn(A, B, C, D, E, F, G, H, I) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I> PartialEq<unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, ...) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I, ...) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I> PartialEq<unsafe fn(A, B, C, D, E, F, G, H, I) -> Ret> for unsafe fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I, J> PartialEq<extern "C" fn(A, B, C, D, E, F, G, H, I, J) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I, _: J) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I, J> PartialEq<extern "C" fn(A, B, C, D, E, F, G, H, I, J, ...) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I, _: J, ...) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I, J> PartialEq<fn(A, B, C, D, E, F, G, H, I, J) -> Ret> for fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I, _: J) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I, J> PartialEq<unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I, _: J) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I, J> PartialEq<unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J, ...) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I, _: J, ...) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I, J> PartialEq<unsafe fn(A, B, C, D, E, F, G, H, I, J) -> Ret> for unsafe fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I, _: J) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I, J, K> PartialEq<extern "C" fn(A, B, C, D, E, F, G, H, I, J, K) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I, _: J, _: K) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I, J, K> PartialEq<extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, ...) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I, _: J, _: K, ...) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I, J, K> PartialEq<fn(A, B, C, D, E, F, G, H, I, J, K) -> Ret> for fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I, _: J, _: K) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I, J, K> PartialEq<unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J, K) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I, _: J, _: K) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I, J, K> PartialEq<unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, ...) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I, _: J, _: K, ...) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I, J, K> PartialEq<unsafe fn(A, B, C, D, E, F, G, H, I, J, K) -> Ret> for unsafe fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I, _: J, _: K) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> PartialEq<extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, L) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I, _: J, _: K, _: L) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> PartialEq<extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, L, ...) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I, _: J, _: K, _: L, ...) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> PartialEq<fn(A, B, C, D, E, F, G, H, I, J, K, L) -> Ret> for fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I, _: J, _: K, _: L) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> PartialEq<unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, L) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I, _: J, _: K, _: L) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> PartialEq<unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, L, ...) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I, _: J, _: K, _: L, ...) -> Ret1.4.0[src]
impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> PartialEq<unsafe fn(A, B, C, D, E, F, G, H, I, J, K, L) -> Ret> for unsafe fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I, _: J, _: K, _: L) -> Ret1.4.0[src]
impl<T> PartialEq<Discriminant<T>> for Discriminant<T>1.21.0[src]
impl<T: PartialEq + Copy> PartialEq<Cell<T>> for Cell<T>[src]
impl<T: PartialEq + ?Sized> PartialEq<ManuallyDrop<T>> for ManuallyDrop<T>1.20.0[src]
fn eq(&self, other: &ManuallyDrop<T>) -> bool[src]
fn ne(&self, other: &ManuallyDrop<T>) -> bool[src]
impl<T: PartialEq> PartialEq<Bound<T>> for Bound<T>1.17.0[src]
impl<T: PartialEq> PartialEq<Option<T>> for Option<T>[src]
impl<T: PartialEq> PartialEq<Poll<T>> for Poll<T>1.36.0[src]
impl<T: PartialEq> PartialEq<Reverse<T>> for Reverse<T>1.19.0[src]
impl<T: PartialEq> PartialEq<OnceCell<T>> for OnceCell<T>[src]
impl<T: PartialEq> PartialEq<Wrapping<T>> for Wrapping<T>[src]
impl<T: PartialEq, E: PartialEq> PartialEq<Result<T, E>> for Result<T, E>[src]
impl<T: ?Sized + PartialEq> PartialEq<RefCell<T>> for RefCell<T>[src]
fn eq(&self, other: &RefCell<T>) -> bool[src]
Panics
Panics if the value in either RefCell is currently borrowed.