1.0.0[][src]Trait sp_std::prelude::PartialEq

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

  • symmetric: a == b implies b == a; and
  • transitive: a == b and b == c implies a == c.

Note that these requirements mean that the trait itself must be implemented symmetrically and transitively: if T: PartialEq<U> and U: PartialEq<V> then U: PartialEq<T> and T: PartialEq<V>.

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]fn eq(&self, other: &Rhs) -> bool

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

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Provided methods

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

This method tests for !=.

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Implementations on Foreign Types

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

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

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

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

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

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

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

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

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

impl PartialEq<IpAddr> for Ipv6Addr[src]

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

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

impl PartialEq<OsString> for str[src]

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

impl PartialEq<Ipv6Addr> for IpAddr[src]

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

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

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

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

impl PartialEq<Permissions> for Permissions[src]

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

impl PartialEq<SocketAddrV4> for SocketAddr[src]

impl PartialEq<NulError> for NulError[src]

impl PartialEq<Ipv4Addr> for IpAddr[src]

impl PartialEq<str> for OsString[src]

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

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

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

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

impl PartialEq<Ipv4Addr> for Ipv4Addr[src]

impl PartialEq<SocketAddr> for SocketAddrV4[src]

impl PartialEq<SocketAddr> for SocketAddr[src]

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

impl PartialEq<IpAddr> for IpAddr[src]

impl PartialEq<SocketAddrV6> for SocketAddrV6[src]

impl PartialEq<VarError> for VarError[src]

impl PartialEq<AddrParseError> for AddrParseError[src]

impl PartialEq<CStr> for CStr[src]

impl PartialEq<str> for OsStr[src]

impl PartialEq<ExitStatus> for ExitStatus[src]

impl PartialEq<FileType> for FileType[src]

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

impl PartialEq<Instant> for Instant[src]

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

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

impl PartialEq<ErrorKind> for ErrorKind[src]

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

impl PartialEq<OsStr> for str[src]

impl PartialEq<SystemTime> for SystemTime[src]

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

impl PartialEq<Output> for Output[src]

impl PartialEq<ThreadId> for ThreadId[src]

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

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

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

impl PartialEq<Ipv6Addr> for Ipv6Addr[src]

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

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

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

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

impl PartialEq<SeekFrom> for SeekFrom[src]

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

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

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

impl PartialEq<SocketAddr> for SocketAddrV6[src]

impl PartialEq<Ipv6MulticastScope> for Ipv6MulticastScope[src]

impl PartialEq<FromBytesWithNulError> for FromBytesWithNulError[src]

impl PartialEq<CString> for CString[src]

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

impl PartialEq<SocketAddrV4> for SocketAddrV4[src]

impl PartialEq<BacktraceStatus> for BacktraceStatus[src]

impl PartialEq<Shutdown> for Shutdown[src]

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

impl PartialEq<Path> for Path[src]

impl PartialEq<IntoStringError> for IntoStringError[src]

impl PartialEq<AccessError> for AccessError[src]

impl PartialEq<OsString> for OsString[src]

impl PartialEq<OsStr> for OsStr[src]

impl PartialEq<SocketAddrV6> for SocketAddr[src]

impl PartialEq<PathBuf> for PathBuf[src]

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

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

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

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

impl PartialEq<StripPrefixError> for StripPrefixError[src]

impl PartialEq<IpAddr> for Ipv4Addr[src]

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

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

impl<'b, const N: usize, A, B> PartialEq<&'b [B]> for [A; N] where
    A: PartialEq<B>,
    [A; N]: LengthAtMost32
[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, 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<T> PartialEq<Poll<T>> for Poll<T> where
    T: PartialEq<T>, 
[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
    A: PartialEq<A>,
    B: PartialEq<B>,
    C: PartialEq<C>,
    D: PartialEq<D>,
    E: PartialEq<E>,
    F: PartialEq<F>,
    G: PartialEq<G>,
    H: PartialEq<H>,
    I: PartialEq<I>,
    J: PartialEq<J> + ?Sized
[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<extern "C" fn(A) -> Ret> for extern "C" fn(A) -> Ret[src]

impl PartialEq<i64> for i64[src]

impl PartialEq<RawWakerVTable> for RawWakerVTable[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> PartialEq<unsafe fn(A, B) -> Ret> for unsafe fn(A, B) -> Ret[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> 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<u64> for u64[src]

impl PartialEq<usize> for usize[src]

impl<Ret, A, B> PartialEq<unsafe extern "C" fn(A, B) -> Ret> for unsafe extern "C" fn(A, B) -> 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
    A: PartialEq<A>,
    B: PartialEq<B>,
    C: PartialEq<C>,
    D: PartialEq<D>,
    E: PartialEq<E>,
    F: PartialEq<F>,
    G: PartialEq<G> + ?Sized
[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, 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<const N: usize, A, B> PartialEq<[B; N]> for [A; N] where
    A: PartialEq<B>,
    [A; N]: LengthAtMost32,
    [B; N]: LengthAtMost32
[src]

impl PartialEq<!> for ![src]

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

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

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

impl PartialEq<DecodeUtf16Error> for DecodeUtf16Error[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<RawWaker> for RawWaker[src]

impl<A, B, C, D, E, F> PartialEq<(A, B, C, D, E, F)> for (A, B, C, D, E, F) where
    A: PartialEq<A>,
    B: PartialEq<B>,
    C: PartialEq<C>,
    D: PartialEq<D>,
    E: PartialEq<E>,
    F: PartialEq<F> + ?Sized
[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 PartialEq<()> for ()[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 PartialEq<f32> for f32[src]

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

impl<'b, const N: usize, A, B> PartialEq<[A; N]> for &'b mut [B] where
    B: PartialEq<A>,
    [A; N]: LengthAtMost32
[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 extern "C" fn(A, B, C, ...) -> Ret> for unsafe extern "C" fn(A, B, C, ...) -> Ret[src]

impl<'_, '_, A, B> PartialEq<&'_ mut B> for &'_ mut A where
    A: PartialEq<B> + ?Sized,
    B: ?Sized
[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
    A: PartialEq<A>,
    B: PartialEq<B>,
    C: PartialEq<C>,
    D: PartialEq<D>,
    E: PartialEq<E>,
    F: PartialEq<F>,
    G: PartialEq<G>,
    H: PartialEq<H>,
    I: PartialEq<I>,
    J: PartialEq<J>,
    K: PartialEq<K>,
    L: PartialEq<L> + ?Sized
[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<'b, const N: usize, A, B> PartialEq<&'b mut [B]> for [A; N] where
    A: PartialEq<B>,
    [A; N]: LengthAtMost32
[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<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<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<Ret, A, B, C> PartialEq<extern "C" fn(A, B, C) -> Ret> for extern "C" fn(A, B, C) -> Ret[src]

impl PartialEq<f64> for f64[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 PartialEq<char> for char[src]

impl PartialEq<u16> for u16[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> PartialEq<unsafe fn(A) -> Ret> for unsafe fn(A) -> Ret[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, 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 PartialEq<i128> for i128[src]

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

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

impl<T> PartialEq<*const T> for *const T where
    T: ?Sized
[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> PartialEq<extern "C" fn(A, B, C, D) -> Ret> for extern "C" fn(A, B, C, D) -> Ret[src]

impl PartialEq<bool> for bool[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<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, 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<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<const N: usize, A, B> PartialEq<[A; N]> for [B] where
    B: PartialEq<A>,
    [A; N]: LengthAtMost32
[src]

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

impl<'a> PartialEq<Utf8LossyChunk<'a>> for Utf8LossyChunk<'a>[src]

impl PartialEq<i16> for i16[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> PartialEq<fn(A, B, C, D, E, F) -> Ret> for fn(A, B, C, D, E, F) -> 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<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> PartialEq<fn() -> Ret> for fn() -> Ret[src]

impl PartialEq<CpuidResult> for CpuidResult[src]

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

impl PartialEq<i32> for i32[src]

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

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

impl PartialEq<ParseCharError> for ParseCharError[src]

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

impl PartialEq<str> for str[src]

impl<'b, const N: usize, A, B> PartialEq<[A; N]> for &'b [B] where
    B: PartialEq<A>,
    [A; N]: LengthAtMost32
[src]

impl PartialEq<CharTryFromError> for CharTryFromError[src]

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

impl PartialEq<u128> for u128[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<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 PartialEq<u32> for u32[src]

impl PartialEq<isize> for isize[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, 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<u8> for u8[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> 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<const N: usize, A, B> PartialEq<[B]> for [A; N] where
    A: PartialEq<B>,
    [A; N]: LengthAtMost32
[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, 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> PartialEq<unsafe extern "C" fn(A) -> Ret> for unsafe extern "C" fn(A) -> Ret[src]

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

impl PartialEq<i8> for i8[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, 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<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> 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, B, C> PartialEq<unsafe extern "C" fn(A, B, C) -> Ret> for unsafe extern "C" fn(A, B, C) -> Ret[src]

impl<A> PartialEq<(A,)> for (A,) where
    A: PartialEq<A> + ?Sized
[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<FromUtf8Error> for FromUtf8Error[src]

impl PartialEq<String> for String[src]

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

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

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

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

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

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

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

impl PartialEq<TryReserveError> for TryReserveError[src]

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

impl PartialEq<_Unwind_Action> for _Unwind_Action

impl PartialEq<_Unwind_Reason_Code> for _Unwind_Reason_Code

impl PartialEq<PrintFmt> for PrintFmt[src]

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

impl PartialEq<CollectionAllocErr> for CollectionAllocErr

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

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Implementors

impl PartialEq<AllocInit> for AllocInit[src]

impl PartialEq<ReallocPlacement> for ReallocPlacement[src]

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

impl PartialEq<Infallible> for Infallible[src]

impl PartialEq<FpCategory> for FpCategory[src]

impl PartialEq<IntErrorKind> for IntErrorKind[src]

impl PartialEq<SearchStep> for SearchStep[src]

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

impl PartialEq<RecvTimeoutError> for RecvTimeoutError[src]

impl PartialEq<TryRecvError> for TryRecvError[src]

impl PartialEq<AllocErr> for AllocErr[src]

impl PartialEq<Layout> for Layout[src]

impl PartialEq<LayoutErr> for LayoutErr[src]

impl PartialEq<TypeId> for TypeId[src]

impl PartialEq<Error> for Error[src]

impl PartialEq<PhantomPinned> for PhantomPinned[src]

impl PartialEq<NonZeroI128> for NonZeroI128[src]

impl PartialEq<NonZeroI16> for NonZeroI16[src]

impl PartialEq<NonZeroI32> for NonZeroI32[src]

impl PartialEq<NonZeroI64> for NonZeroI64[src]

impl PartialEq<NonZeroI8> for NonZeroI8[src]

impl PartialEq<NonZeroIsize> for NonZeroIsize[src]

impl PartialEq<NonZeroU128> for NonZeroU128[src]

impl PartialEq<NonZeroU16> for NonZeroU16[src]

impl PartialEq<NonZeroU32> for NonZeroU32[src]

impl PartialEq<NonZeroU64> for NonZeroU64[src]

impl PartialEq<NonZeroU8> for NonZeroU8[src]

impl PartialEq<NonZeroUsize> for NonZeroUsize[src]

impl PartialEq<ParseFloatError> for ParseFloatError[src]

impl PartialEq<ParseIntError> for ParseIntError[src]

impl PartialEq<TryFromIntError> for TryFromIntError[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 WaitTimeoutResult[src]

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

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

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

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

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

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

impl<'_, A, B> PartialEq<Vec<B>> for Cow<'_, [A]> where
    A: PartialEq<B> + Clone
[src]

impl<'_, const N: usize, A, B> PartialEq<&'_ [B; N]> for VecDeque<A> where
    A: PartialEq<B>,
    [B; N]: LengthAtMost32
[src]

impl<'_, const N: usize, A, B> PartialEq<&'_ [B; N]> for Vec<A> where
    A: PartialEq<B>,
    [B; N]: LengthAtMost32
[src]

impl<'_, const N: usize, A, B> PartialEq<&'_ mut [B; N]> for VecDeque<A> where
    A: PartialEq<B>,
    [B; N]: LengthAtMost32
[src]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

impl<H> PartialEq<BuildHasherDefault<H>> for BuildHasherDefault<H>[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>, 
[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>, 
[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>, 
[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]

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

Panics

Panics if the value in either RefCell is currently borrowed.

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>[src]

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

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

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

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

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

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

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));

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]

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));

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

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

impl<const N: usize, A, B> PartialEq<[B; N]> for VecDeque<A> where
    A: PartialEq<B>,
    [B; N]: LengthAtMost32
[src]

impl<const N: usize, A, B> PartialEq<[B; N]> for Vec<A> where
    A: PartialEq<B>,
    [B; N]: LengthAtMost32
[src]

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