Trait tetcore_std::cmp::PartialEq1.0.0[][src]

#[lang = "eq"]pub trait PartialEq<Rhs = Self> where
    Rhs: ?Sized
{ #[must_use] pub fn eq(&self, other: &Rhs) -> bool; #[must_use] pub fn ne(&self, other: &Rhs) -> bool { ... } }

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> and B: PartialEq<A>, then a == b implies b == a; and

  • Transitive: if A: PartialEq<B> and B: PartialEq<C> and A: PartialEq<C>, then a == b and b == c implies a == 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);

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);

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
}

Examples

let x: u32 = 0;
let y: u32 = 1;

assert_eq!(x == y, false);
assert_eq!(x.eq(&y), false);

Required methods

#[must_use]pub fn eq(&self, other: &Rhs) -> bool[src]

This method tests for self and other values to be equal, and is used by ==.

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Provided methods

#[must_use]pub fn ne(&self, other: &Rhs) -> bool[src]

This method tests for !=.

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Implementations on Foreign Types

impl PartialEq<SystemTime> for SystemTime[src]

impl<'a, 'b> PartialEq<Cow<'a, Path>> for &'b OsStr[src]

impl PartialEq<Ipv4Addr> for IpAddr[src]

impl PartialEq<SeekFrom> for SeekFrom[src]

impl PartialEq<NulError> for NulError[src]

impl PartialEq<OsString> for str[src]

impl<'a, 'b> PartialEq<Cow<'b, OsStr>> for &'a Path[src]

impl PartialEq<Shutdown> for Shutdown[src]

impl PartialEq<FromBytesWithNulError> for FromBytesWithNulError[src]

impl<'a, 'b> PartialEq<PathBuf> for &'a Path[src]

impl<'a, 'b> PartialEq<&'a OsStr> for OsString[src]

impl PartialEq<CStr> for CStr[src]

impl PartialEq<Permissions> for Permissions[src]

impl PartialEq<Output> for Output[src]

impl<'a, 'b> PartialEq<PathBuf> for &'a OsStr[src]

impl PartialEq<SocketAddr> for SocketAddr[src]

impl<'a, 'b> PartialEq<PathBuf> for OsStr[src]

impl PartialEq<Instant> for Instant[src]

impl PartialEq<Ipv6MulticastScope> for Ipv6MulticastScope[src]

impl<T, S> PartialEq<HashSet<T, S>> for HashSet<T, S> where
    T: Eq + Hash,
    S: BuildHasher
[src]

impl PartialEq<BacktraceStatus> for BacktraceStatus[src]

impl<'a, 'b> PartialEq<Path> for OsString[src]

impl<'_> PartialEq<&'_ str> for OsString[src]

impl<'a, 'b> PartialEq<Path> for PathBuf[src]

impl PartialEq<Ipv6Addr> for IpAddr[src]

impl PartialEq<ExitStatus> for ExitStatus[src]

impl PartialEq<Path> for Path[src]

impl<'a, 'b> PartialEq<Cow<'a, OsStr>> for OsStr[src]

impl PartialEq<IpAddr> for Ipv4Addr[src]

impl PartialEq<FromVecWithNulError> for FromVecWithNulError[src]

impl<'a> PartialEq<Components<'a>> for Components<'a>[src]

impl PartialEq<OsStr> for OsStr[src]

impl<'a, 'b> PartialEq<OsStr> for &'a Path[src]

impl PartialEq<SocketAddrV4> for SocketAddrV4[src]

impl<'a, 'b> PartialEq<Cow<'a, OsStr>> for PathBuf[src]

impl<'a, 'b> PartialEq<PathBuf> for Path[src]

impl<'a, 'b> PartialEq<Cow<'a, OsStr>> for Path[src]

impl<'a, 'b> PartialEq<Path> for &'a OsStr[src]

impl<K, V, S> PartialEq<HashMap<K, V, S>> for HashMap<K, V, S> where
    K: Eq + Hash,
    V: PartialEq<V>,
    S: BuildHasher
[src]

impl<'a> PartialEq<Prefix<'a>> for Prefix<'a>[src]

impl PartialEq<str> for OsStr[src]

impl PartialEq<ThreadId> for ThreadId[src]

impl PartialEq<Ipv4Addr> for Ipv4Addr[src]

impl PartialEq<IntoStringError> for IntoStringError[src]

impl<'a, 'b> PartialEq<OsString> for PathBuf[src]

impl<'a, 'b> PartialEq<OsString> for OsStr[src]

impl<'a, 'b> PartialEq<Cow<'a, Path>> for Path[src]

impl<'a, 'b> PartialEq<Cow<'a, OsStr>> for &'b OsStr[src]

impl<'a, 'b> PartialEq<&'a Path> for OsString[src]

impl<'a, 'b> PartialEq<&'a Path> for PathBuf[src]

impl<'a, 'b> PartialEq<Cow<'a, Path>> for OsStr[src]

impl<T> PartialEq<SyncOnceCell<T>> for SyncOnceCell<T> where
    T: PartialEq<T>, 
[src]

impl<'a, 'b> PartialEq<Cow<'a, Path>> for OsString[src]

impl<'a, 'b> PartialEq<&'a Path> for OsStr[src]

impl PartialEq<UCred> for UCred[src]

impl<'a> PartialEq<PrefixComponent<'a>> for PrefixComponent<'a>[src]

impl<'a, 'b> PartialEq<OsString> for &'a OsStr[src]

impl<T> PartialEq<Cursor<T>> for Cursor<T> where
    T: PartialEq<T>, 
[src]

impl<'a, 'b> PartialEq<OsString> for Path[src]

impl<'a, 'b> PartialEq<OsStr> for PathBuf[src]

impl PartialEq<Ipv6Addr> for Ipv6Addr[src]

impl<'a, 'b> PartialEq<&'a OsStr> for PathBuf[src]

impl<'a, 'b> PartialEq<Cow<'a, Path>> for PathBuf[src]

impl<'a> PartialEq<Component<'a>> for Component<'a>[src]

impl<'a, 'b> PartialEq<OsString> for &'a Path[src]

impl<'a> PartialEq<OsString> for &'a str[src]

impl PartialEq<AddrParseError> for AddrParseError[src]

impl PartialEq<IpAddr> for IpAddr[src]

impl PartialEq<VarError> for VarError[src]

impl<'a, 'b> PartialEq<Cow<'a, OsStr>> for OsString[src]

impl PartialEq<StripPrefixError> for StripPrefixError[src]

impl PartialEq<FileType> for FileType[src]

impl PartialEq<OsStr> for str[src]

impl PartialEq<IpAddr> for Ipv6Addr[src]

impl PartialEq<ErrorKind> for ErrorKind[src]

impl PartialEq<CString> for CString[src]

impl PartialEq<str> for OsString[src]

impl PartialEq<SocketAddrV6> for SocketAddrV6[src]

impl<'a, 'b> PartialEq<Cow<'a, Path>> for &'b Path[src]

impl PartialEq<AccessError> for AccessError[src]

impl<'a, 'b> PartialEq<Path> for OsStr[src]

impl<'a, 'b> PartialEq<OsStr> for OsString[src]

impl<'a, 'b> PartialEq<PathBuf> for OsString[src]

impl<'a, 'b> PartialEq<&'a OsStr> for Path[src]

impl<'a, 'b> PartialEq<OsStr> for Path[src]

impl PartialEq<PathBuf> for PathBuf[src]

impl PartialEq<OsString> for OsString[src]

impl<Ret, A, B> PartialEq<unsafe extern "C" fn(A, B) -> Ret> for unsafe extern "C" fn(A, B) -> Ret[src]

impl<Ret, A, B> PartialEq<unsafe fn(A, B) -> Ret> for unsafe fn(A, B) -> Ret[src]

impl PartialEq<ParseCharError> for ParseCharError[src]

impl PartialEq<CharTryFromError> for CharTryFromError[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) -> Ret[src]

impl<Ret, A, B, C> PartialEq<extern "C" fn(A, B, C) -> Ret> for extern "C" fn(A, B, C) -> Ret[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) -> Ret[src]

impl PartialEq<DecodeUtf16Error> for DecodeUtf16Error[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) -> Ret[src]

impl<Ret> PartialEq<extern "C" fn() -> Ret> for extern "C" fn() -> Ret[src]

impl<T> PartialEq<*const T> for *const T where
    T: ?Sized
[src]

impl<'a> PartialEq<Location<'a>> for Location<'a>[src]

impl<Ret, A, B> PartialEq<fn(A, B) -> Ret> for fn(A, B) -> Ret[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) -> Ret[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) -> Ret[src]

impl<'_, '_, A, B> PartialEq<&'_ B> for &'_ A where
    A: PartialEq<B> + ?Sized,
    B: ?Sized
[src]

impl<Ret, A> PartialEq<fn(A) -> Ret> for fn(A) -> Ret[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) -> Ret[src]

impl<Ret, A> PartialEq<unsafe extern "C" fn(A, ...) -> Ret> for unsafe extern "C" fn(A, ...) -> Ret[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, ...) -> Ret[src]

impl<'_, A, B, const N: usize> PartialEq<[A; N]> for &'_ [B] where
    B: PartialEq<A>, 
[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) -> Ret[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) -> Ret[src]

impl<Ret, A, B, C, D, E> PartialEq<fn(A, B, C, D, E) -> Ret> for fn(A, B, C, D, E) -> Ret[src]

impl<A, B, C, D, E, F, G, H, I, J> PartialEq<(A, B, C, D, E, F, G, H, I, J)> for (A, B, C, D, E, F, G, H, I, J) where
    C: PartialEq<C>,
    A: PartialEq<A>,
    E: PartialEq<E>,
    F: PartialEq<F>,
    I: PartialEq<I>,
    B: PartialEq<B>,
    H: PartialEq<H>,
    D: PartialEq<D>,
    G: PartialEq<G>,
    J: PartialEq<J> + ?Sized
[src]

impl PartialEq<i8> for i8[src]

impl PartialEq<NoneError> for NoneError[src]

impl PartialEq<CpuidResult> for CpuidResult[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, ...) -> Ret[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) -> Ret[src]

impl<Ret, A, B, C> PartialEq<unsafe fn(A, B, C) -> Ret> for unsafe fn(A, B, C) -> Ret[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, ...) -> Ret[src]

impl PartialEq<u16> for u16[src]

impl<'_, '_, A, B> PartialEq<&'_ mut B> for &'_ mut A where
    A: PartialEq<B> + ?Sized,
    B: ?Sized
[src]

impl<T> PartialEq<Option<T>> for Option<T> where
    T: PartialEq<T>, 
[src]

impl<Ret, A, B, C, D> PartialEq<fn(A, B, C, D) -> Ret> for fn(A, B, C, D) -> Ret[src]

impl<Ret, A> PartialEq<extern "C" fn(A) -> Ret> for extern "C" fn(A) -> Ret[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) -> Ret[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, ...) -> Ret[src]

impl<A, B, C, D, E, F, G, H, I> PartialEq<(A, B, C, D, E, F, G, H, I)> for (A, B, C, D, E, F, G, H, I) where
    C: PartialEq<C>,
    A: PartialEq<A>,
    E: PartialEq<E>,
    F: PartialEq<F>,
    I: PartialEq<I> + ?Sized,
    B: PartialEq<B>,
    H: PartialEq<H>,
    D: PartialEq<D>,
    G: PartialEq<G>, 
[src]

impl<A, B, C, D, E, F> PartialEq<(A, B, C, D, E, F)> for (A, B, C, D, E, F) where
    C: PartialEq<C>,
    A: PartialEq<A>,
    E: PartialEq<E>,
    F: PartialEq<F> + ?Sized,
    B: PartialEq<B>,
    D: PartialEq<D>, 
[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) -> Ret[src]

impl<A, B, C, D, E, F, G, H> PartialEq<(A, B, C, D, E, F, G, H)> for (A, B, C, D, E, F, G, H) where
    C: PartialEq<C>,
    A: PartialEq<A>,
    E: PartialEq<E>,
    F: PartialEq<F>,
    B: PartialEq<B>,
    H: PartialEq<H> + ?Sized,
    D: PartialEq<D>,
    G: PartialEq<G>, 
[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) -> Ret[src]

impl PartialEq<!> for ![src]

impl PartialEq<u32> for u32[src]

impl<A, B, C, D> PartialEq<(A, B, C, D)> for (A, B, C, D) where
    C: PartialEq<C>,
    A: PartialEq<A>,
    B: PartialEq<B>,
    D: PartialEq<D> + ?Sized
[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) -> Ret[src]

impl<A, B> PartialEq<[B]> for [A] where
    A: PartialEq<B>, 
[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) -> Ret[src]

impl<A, B, C, D, E> PartialEq<(A, B, C, D, E)> for (A, B, C, D, E) where
    C: PartialEq<C>,
    A: PartialEq<A>,
    E: PartialEq<E> + ?Sized,
    B: PartialEq<B>,
    D: PartialEq<D>, 
[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, ...) -> Ret[src]

impl<Ret, A, B, C, D> PartialEq<extern "C" fn(A, B, C, D) -> Ret> for extern "C" fn(A, B, C, D) -> Ret[src]

impl<'_, '_, A, B> PartialEq<&'_ B> for &'_ mut A where
    A: PartialEq<B> + ?Sized,
    B: ?Sized
[src]

impl PartialEq<i32> for i32[src]

impl PartialEq<str> for str[src]

impl<A, B, const N: usize> PartialEq<[B]> for [A; N] where
    A: PartialEq<B>, 
[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, ...) -> Ret[src]

impl<Ret, A, B, C> PartialEq<unsafe extern "C" fn(A, B, C, ...) -> Ret> for unsafe extern "C" fn(A, B, C, ...) -> Ret[src]

impl PartialEq<i64> for i64[src]

impl PartialEq<RawWaker> for RawWaker[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) -> Ret[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) -> Ret[src]

impl<A> PartialEq<(A,)> for (A,) where
    A: PartialEq<A> + ?Sized
[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) -> Ret[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) -> Ret[src]

impl PartialEq<()> for ()[src]

impl<A, B, const N: usize> PartialEq<[B; N]> for [A; N] where
    A: PartialEq<B>, 
[src]

impl PartialEq<char> for char[src]

impl PartialEq<f64> for f64[src]

impl PartialEq<u128> for u128[src]

impl<'_, A, B, const N: usize> PartialEq<&'_ [B]> for [A; N] where
    A: PartialEq<B>, 
[src]

impl<A, B, const N: usize> PartialEq<[A; N]> for [B] where
    B: PartialEq<A>, 
[src]

impl PartialEq<Duration> for Duration[src]

impl<Ret, A> PartialEq<unsafe fn(A) -> Ret> for unsafe fn(A) -> Ret[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, ...) -> Ret[src]

impl<'a> PartialEq<Utf8LossyChunk<'a>> for Utf8LossyChunk<'a>[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) -> Ret[src]

impl<Ret, A> PartialEq<extern "C" fn(A, ...) -> Ret> for extern "C" fn(A, ...) -> Ret[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) -> Ret[src]

impl<Ret> PartialEq<unsafe extern "C" fn() -> Ret> for unsafe extern "C" fn() -> Ret[src]

impl<P, Q> PartialEq<Pin<Q>> for Pin<P> where
    P: Deref,
    Q: Deref,
    <P as Deref>::Target: PartialEq<<Q as Deref>::Target>, 
[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) -> Ret[src]

impl PartialEq<isize> for isize[src]

impl<A, B, C, D, E, F, G, H, I, J, 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
    C: PartialEq<C>,
    A: PartialEq<A>,
    E: PartialEq<E>,
    K: PartialEq<K> + ?Sized,
    F: PartialEq<F>,
    I: PartialEq<I>,
    B: PartialEq<B>,
    H: PartialEq<H>,
    D: PartialEq<D>,
    G: PartialEq<G>,
    J: PartialEq<J>, 
[src]

impl<Ret, A, B, C, D> PartialEq<extern "C" fn(A, B, C, D, ...) -> Ret> for extern "C" fn(A, B, C, D, ...) -> Ret[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) -> Ret[src]

impl PartialEq<i16> for i16[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) -> Ret[src]

impl<Ret, A, B, C> PartialEq<fn(A, B, C) -> Ret> for fn(A, B, C) -> Ret[src]

impl<A, B, C, D, E, F, G, H, I, J, K, 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
    C: PartialEq<C>,
    A: PartialEq<A>,
    E: PartialEq<E>,
    K: PartialEq<K>,
    F: PartialEq<F>,
    I: PartialEq<I>,
    B: PartialEq<B>,
    H: PartialEq<H>,
    D: PartialEq<D>,
    G: PartialEq<G>,
    J: PartialEq<J>,
    L: PartialEq<L> + ?Sized
[src]

impl PartialEq<usize> for usize[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) -> Ret[src]

impl PartialEq<u64> for u64[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, ...) -> Ret[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, ...) -> Ret[src]

impl<T> PartialEq<Poll<T>> for Poll<T> where
    T: PartialEq<T>, 
[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, ...) -> Ret[src]

impl<Ret, A, B, C> PartialEq<unsafe extern "C" fn(A, B, C) -> Ret> for unsafe extern "C" fn(A, B, C) -> Ret[src]

impl<T> PartialEq<*mut T> for *mut T where
    T: ?Sized
[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) -> Ret[src]

impl<Ret, A, B> PartialEq<unsafe extern "C" fn(A, B, ...) -> Ret> for unsafe extern "C" fn(A, B, ...) -> Ret[src]

impl PartialEq<RawWakerVTable> for RawWakerVTable[src]

impl<Ret> PartialEq<unsafe fn() -> Ret> for unsafe fn() -> Ret[src]

impl PartialEq<u8> for u8[src]

impl<T> PartialEq<OnceCell<T>> for OnceCell<T> where
    T: PartialEq<T>, 
[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, ...) -> Ret[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, ...) -> Ret[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) -> Ret[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, ...) -> Ret[src]

impl<'_, A, B, const N: usize> PartialEq<[A; N]> for &'_ mut [B] where
    B: PartialEq<A>, 
[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) -> Ret[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, ...) -> Ret[src]

impl PartialEq<f32> for f32[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, ...) -> Ret[src]

impl<Ret, A, B> PartialEq<extern "C" fn(A, B, ...) -> Ret> for extern "C" fn(A, B, ...) -> Ret[src]

impl<Ret> PartialEq<fn() -> Ret> for fn() -> Ret[src]

impl<Ret, A, B> PartialEq<extern "C" fn(A, B) -> Ret> for extern "C" fn(A, B) -> Ret[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, ...) -> Ret[src]

impl<A, B, C, D, E, F, G> PartialEq<(A, B, C, D, E, F, G)> for (A, B, C, D, E, F, G) where
    C: PartialEq<C>,
    A: PartialEq<A>,
    E: PartialEq<E>,
    F: PartialEq<F>,
    B: PartialEq<B>,
    D: PartialEq<D>,
    G: PartialEq<G> + ?Sized
[src]

impl<Ret, A, B, C, D> PartialEq<unsafe fn(A, B, C, D) -> Ret> for unsafe fn(A, B, C, D) -> Ret[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) -> Ret[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, ...) -> Ret[src]

impl<'_, '_, A, B> PartialEq<&'_ mut B> for &'_ A where
    A: PartialEq<B> + ?Sized,
    B: ?Sized
[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) -> Ret[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) -> Ret[src]

impl<A, B, C> PartialEq<(A, B, C)> for (A, B, C) where
    C: PartialEq<C> + ?Sized,
    A: PartialEq<A>,
    B: PartialEq<B>, 
[src]

impl<Ret, A, B, C> PartialEq<extern "C" fn(A, B, C, ...) -> Ret> for extern "C" fn(A, B, C, ...) -> Ret[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) -> Ret[src]

impl<Ret, A> PartialEq<unsafe extern "C" fn(A) -> Ret> for unsafe extern "C" fn(A) -> Ret[src]

impl PartialEq<bool> for bool[src]

impl PartialEq<i128> for i128[src]

impl<A, B> PartialEq<(A, B)> for (A, B) where
    A: PartialEq<A>,
    B: PartialEq<B> + ?Sized
[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) -> Ret[src]

impl<'_, A, B, const N: usize> PartialEq<&'_ mut [B]> for [A; N] where
    A: PartialEq<B>, 
[src]

impl<'a, 'b> PartialEq<str> for String[src]

impl<'a, 'b> PartialEq<&'a str> for String[src]

impl PartialEq<TryReserveError> for TryReserveError[src]

impl<'a, 'b> PartialEq<Cow<'a, str>> for String[src]

impl<T> PartialEq<LinkedList<T>> for LinkedList<T> where
    T: PartialEq<T>, 
[src]

impl<'a, 'b> PartialEq<String> for str[src]

impl<'_, T, U, A> PartialEq<Vec<U, A>> for &'_ [T] where
    T: PartialEq<U>,
    A: Allocator
[src]

impl PartialEq<String> for String[src]

impl PartialEq<FromUtf8Error> for FromUtf8Error[src]

impl<'a, 'b> PartialEq<Cow<'a, str>> for str[src]

impl<'a, 'b> PartialEq<String> for &'a str[src]

impl<'a, 'b> PartialEq<Cow<'a, str>> for &'b str[src]

impl<T, U, A> PartialEq<Vec<U, A>> for [T] where
    T: PartialEq<U>,
    A: Allocator
[src]

impl<'_, T, U, A> PartialEq<Vec<U, A>> for &'_ mut [T] where
    T: PartialEq<U>,
    A: Allocator
[src]

impl PartialEq<_Unwind_Action> for _Unwind_Action

impl PartialEq<_Unwind_Reason_Code> for _Unwind_Reason_Code

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Implementors

impl PartialEq<Ordering> for tetcore_std::cmp::Ordering[src]

impl PartialEq<Infallible> for Infallible1.34.0[src]

impl PartialEq<FpCategory> for FpCategory[src]

impl PartialEq<IntErrorKind> for IntErrorKind[src]

impl PartialEq<SearchStep> for SearchStep[src]

impl PartialEq<Ordering> for tetcore_std::sync::atomic::Ordering[src]

impl PartialEq<RecvTimeoutError> for RecvTimeoutError1.12.0[src]

impl PartialEq<TryRecvError> for TryRecvError[src]

impl PartialEq<AllocError> for AllocError[src]

impl PartialEq<Layout> for Layout1.28.0[src]

impl PartialEq<LayoutError> for LayoutError1.50.0[src]

impl PartialEq<TypeId> for TypeId[src]

impl PartialEq<Error> for Error[src]

impl PartialEq<PhantomPinned> for PhantomPinned1.33.0[src]

impl PartialEq<NonZeroI8> for NonZeroI81.34.0[src]

impl PartialEq<NonZeroI16> for NonZeroI161.34.0[src]

impl PartialEq<NonZeroI32> for NonZeroI321.34.0[src]

impl PartialEq<NonZeroI64> for NonZeroI641.34.0[src]

impl PartialEq<NonZeroI128> for NonZeroI1281.34.0[src]

impl PartialEq<NonZeroIsize> for NonZeroIsize1.34.0[src]

impl PartialEq<NonZeroU8> for NonZeroU81.28.0[src]

impl PartialEq<NonZeroU16> for NonZeroU161.28.0[src]

impl PartialEq<NonZeroU32> for NonZeroU321.28.0[src]

impl PartialEq<NonZeroU64> for NonZeroU641.28.0[src]

impl PartialEq<NonZeroU128> for NonZeroU1281.28.0[src]

impl PartialEq<NonZeroUsize> for NonZeroUsize1.28.0[src]

impl PartialEq<ParseFloatError> for ParseFloatError[src]

impl PartialEq<ParseIntError> for ParseIntError[src]

impl PartialEq<TryFromIntError> for TryFromIntError1.34.0[src]

impl PartialEq<RangeFull> for RangeFull[src]

impl PartialEq<ParseBoolError> for ParseBoolError[src]

impl PartialEq<Utf8Error> for Utf8Error[src]

impl PartialEq<RecvError> for RecvError[src]

impl PartialEq<WaitTimeoutResult> for WaitTimeoutResult1.5.0[src]

impl<'_, '_, T, U> PartialEq<&'_ [U]> for Cow<'_, [T]> where
    T: PartialEq<U> + Clone
[src]

impl<'_, '_, T, U> PartialEq<&'_ mut [U]> for Cow<'_, [T]> where
    T: PartialEq<U> + Clone
[src]

impl<'_, A, B> PartialEq<&'_ [B]> for VecDeque<A> where
    A: PartialEq<B>, 
1.17.0[src]

impl<'_, A, B> PartialEq<&'_ mut [B]> for VecDeque<A> where
    A: PartialEq<B>, 
1.17.0[src]

impl<'_, A, B, const N: usize> PartialEq<&'_ [B; N]> for VecDeque<A> where
    A: PartialEq<B>, 
1.17.0[src]

impl<'_, A, B, const N: usize> PartialEq<&'_ mut [B; N]> for VecDeque<A> where
    A: PartialEq<B>, 
1.17.0[src]

impl<'_, T, U, A> PartialEq<&'_ [U]> for Vec<T, A> where
    T: PartialEq<U>,
    A: Allocator
[src]

impl<'_, T, U, A> PartialEq<&'_ mut [U]> for Vec<T, A> where
    T: PartialEq<U>,
    A: Allocator
[src]

impl<'_, T, U, A> PartialEq<Vec<U, A>> for Cow<'_, [T]> where
    T: PartialEq<U> + Clone,
    A: Allocator
[src]

impl<'_, T, U, A, const N: usize> PartialEq<&'_ [U; N]> for Vec<T, A> where
    T: PartialEq<U>,
    A: Allocator
[src]

impl<'a, 'b> PartialEq<&'a Path> for Cow<'b, OsStr>1.8.0[src]

impl<'a, 'b> PartialEq<&'b str> for Cow<'a, str>[src]

impl<'a, 'b> PartialEq<&'b OsStr> for Cow<'a, OsStr>1.8.0[src]

impl<'a, 'b> PartialEq<&'b OsStr> for Cow<'a, Path>1.8.0[src]

impl<'a, 'b> PartialEq<&'b Path> for Cow<'a, Path>1.6.0[src]

impl<'a, 'b> PartialEq<str> for Cow<'a, str>[src]

impl<'a, 'b> PartialEq<String> for Cow<'a, str>[src]

impl<'a, 'b> PartialEq<OsStr> for Cow<'a, OsStr>1.8.0[src]

impl<'a, 'b> PartialEq<OsStr> for Cow<'a, Path>1.8.0[src]

impl<'a, 'b> PartialEq<OsString> for Cow<'a, OsStr>1.8.0[src]

impl<'a, 'b> PartialEq<OsString> for Cow<'a, Path>1.8.0[src]

impl<'a, 'b> PartialEq<Path> for Cow<'a, OsStr>1.8.0[src]

impl<'a, 'b> PartialEq<Path> for Cow<'a, Path>1.6.0[src]

impl<'a, 'b> PartialEq<PathBuf> for Cow<'a, OsStr>1.8.0[src]

impl<'a, 'b> PartialEq<PathBuf> for Cow<'a, Path>1.6.0[src]

impl<'a, 'b, B, C> PartialEq<Cow<'b, C>> for Cow<'a, B> where
    C: ToOwned + ?Sized,
    B: PartialEq<C> + ToOwned + ?Sized
[src]

impl<A> PartialEq<VecDeque<A>> for VecDeque<A> where
    A: PartialEq<A>, 
[src]

impl<A, B> PartialEq<Vec<B, Global>> for VecDeque<A> where
    A: PartialEq<B>, 
1.17.0[src]

impl<A, B, const N: usize> PartialEq<[B; N]> for VecDeque<A> where
    A: PartialEq<B>, 
1.17.0[src]

impl<B, C> PartialEq<ControlFlow<B, C>> for ControlFlow<B, C> where
    C: PartialEq<C>,
    B: PartialEq<B>, 
[src]

impl<Dyn> PartialEq<DynMetadata<Dyn>> for DynMetadata<Dyn> where
    Dyn: ?Sized
[src]

impl<H> PartialEq<BuildHasherDefault<H>> for BuildHasherDefault<H>1.29.0[src]

impl<Idx> PartialEq<Range<Idx>> for Range<Idx> where
    Idx: PartialEq<Idx>, 
[src]

impl<Idx> PartialEq<RangeFrom<Idx>> for RangeFrom<Idx> where
    Idx: PartialEq<Idx>, 
[src]

impl<Idx> PartialEq<RangeInclusive<Idx>> for RangeInclusive<Idx> where
    Idx: PartialEq<Idx>, 
1.26.0[src]

impl<Idx> PartialEq<RangeTo<Idx>> for RangeTo<Idx> where
    Idx: PartialEq<Idx>, 
[src]

impl<Idx> PartialEq<RangeToInclusive<Idx>> for RangeToInclusive<Idx> where
    Idx: PartialEq<Idx>, 
1.26.0[src]

impl<K, V> PartialEq<BTreeMap<K, V>> for BTreeMap<K, V> where
    K: PartialEq<K>,
    V: PartialEq<V>, 
[src]

impl<T> PartialEq<Bound<T>> for Bound<T> where
    T: PartialEq<T>, 
1.17.0[src]

impl<T> PartialEq<TrySendError<T>> for TrySendError<T> where
    T: PartialEq<T>, 
[src]

impl<T> PartialEq<Cell<T>> for Cell<T> where
    T: PartialEq<T> + Copy
[src]

impl<T> PartialEq<RefCell<T>> for RefCell<T> where
    T: PartialEq<T> + ?Sized
[src]

pub fn eq(&self, other: &RefCell<T>) -> bool[src]

Panics

Panics if the value in either RefCell is currently borrowed.

impl<T> PartialEq<Reverse<T>> for Reverse<T> where
    T: PartialEq<T>, 
1.19.0[src]

impl<T> PartialEq<BTreeSet<T>> for BTreeSet<T> where
    T: PartialEq<T>, 
[src]

impl<T> PartialEq<PhantomData<T>> for PhantomData<T> where
    T: ?Sized
[src]

impl<T> PartialEq<Discriminant<T>> for Discriminant<T>1.21.0[src]

impl<T> PartialEq<ManuallyDrop<T>> for ManuallyDrop<T> where
    T: PartialEq<T> + ?Sized
1.20.0[src]

impl<T> PartialEq<Wrapping<T>> for Wrapping<T> where
    T: PartialEq<T>, 
[src]

impl<T> PartialEq<NonNull<T>> for NonNull<T> where
    T: ?Sized
1.25.0[src]

impl<T> PartialEq<Rc<T>> for Rc<T> where
    T: PartialEq<T> + ?Sized
[src]

pub fn eq(&self, other: &Rc<T>) -> bool[src]

Equality for two Rcs.

Two Rcs are equal if their inner values are equal, even if they are stored in different allocation.

If T also implements Eq (implying reflexivity of equality), two Rcs that point to the same allocation are always equal.

Examples

use std::rc::Rc;

let five = Rc::new(5);

assert!(five == Rc::new(5));

pub fn ne(&self, other: &Rc<T>) -> bool[src]

Inequality for two Rcs.

Two Rcs are unequal if their inner values are unequal.

If T also implements Eq (implying reflexivity of equality), two Rcs that point to the same allocation are never unequal.

Examples

use std::rc::Rc;

let five = Rc::new(5);

assert!(five != Rc::new(6));

impl<T> PartialEq<SendError<T>> for SendError<T> where
    T: PartialEq<T>, 
[src]

impl<T> PartialEq<Arc<T>> for Arc<T> where
    T: PartialEq<T> + ?Sized
[src]

pub fn eq(&self, other: &Arc<T>) -> bool[src]

Equality for two Arcs.

Two Arcs are equal if their inner values are equal, even if they are stored in different allocation.

If T also implements Eq (implying reflexivity of equality), two Arcs that point to the same allocation are always equal.

Examples

use std::sync::Arc;

let five = Arc::new(5);

assert!(five == Arc::new(5));

pub fn ne(&self, other: &Arc<T>) -> bool[src]

Inequality for two Arcs.

Two Arcs are unequal if their inner values are unequal.

If T also implements Eq (implying reflexivity of equality), two Arcs that point to the same value are never unequal.

Examples

use std::sync::Arc;

let five = Arc::new(5);

assert!(five != Arc::new(6));

impl<T, A> PartialEq<Box<T, A>> for Box<T, A> where
    T: PartialEq<T> + ?Sized,
    A: Allocator
[src]

impl<T, E> PartialEq<Result<T, E>> for Result<T, E> where
    T: PartialEq<T>,
    E: PartialEq<E>, 
[src]

impl<T, U, A> PartialEq<[U]> for Vec<T, A> where
    T: PartialEq<U>,
    A: Allocator
1.48.0[src]

impl<T, U, A> PartialEq<Vec<U, A>> for Vec<T, A> where
    T: PartialEq<U>,
    A: Allocator
[src]

impl<T, U, A, const N: usize> PartialEq<[U; N]> for Vec<T, A> where
    T: PartialEq<U>,
    A: Allocator
[src]

impl<Y, R> PartialEq<GeneratorState<Y, R>> for GeneratorState<Y, R> where
    R: PartialEq<R>,
    Y: PartialEq<Y>, 
[src]

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