Trait nom::lib::std::prelude::v1::rust_2021::PartialEq1.0.0[][src]

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):

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 ==.

Loading content...

Provided methods

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

This method tests for !=.

Loading content...

Implementations on Foreign Types

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

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

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

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

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

impl PartialEq<CString> for CString[src]

impl PartialEq<OsStr> for str[src]

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

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

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

impl PartialEq<Permissions> for Permissions[src]

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

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

impl PartialEq<IpAddr> for Ipv6Addr[src]

impl PartialEq<ExitStatus> for ExitStatus[src]

impl PartialEq<str> for OsString[src]

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

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

impl PartialEq<SocketAddr> for SocketAddr[src]

impl PartialEq<IntoStringError> for IntoStringError[src]

impl PartialEq<PathBuf> for PathBuf[src]

impl PartialEq<IpAddr> for Ipv4Addr[src]

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

impl PartialEq<StripPrefixError> for StripPrefixError[src]

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

impl PartialEq<Ipv4Addr> for Ipv4Addr[src]

impl PartialEq<SocketAddrV4> for SocketAddrV4[src]

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

impl PartialEq<RecvError> for RecvError[src]

impl PartialEq<RecvTimeoutError> for RecvTimeoutError[src]

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

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

impl PartialEq<FromBytesWithNulError> for FromBytesWithNulError[src]

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

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

impl PartialEq<Ipv6MulticastScope> for Ipv6MulticastScope[src]

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

impl PartialEq<AccessError> for AccessError[src]

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

impl PartialEq<TryRecvError> for TryRecvError[src]

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

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

impl PartialEq<Path> for Path[src]

impl PartialEq<OsStr> for OsStr[src]

impl PartialEq<Shutdown> for Shutdown[src]

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

impl PartialEq<ErrorKind> for ErrorKind[src]

impl PartialEq<Output> for Output[src]

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

impl PartialEq<UCred> for UCred[src]

impl PartialEq<ThreadId> for ThreadId[src]

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

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

impl PartialEq<Ipv6Addr> for Ipv6Addr[src]

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

impl PartialEq<OsString> for str[src]

impl PartialEq<SystemTime> for SystemTime[src]

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

impl PartialEq<str> for OsStr[src]

impl PartialEq<BacktraceStatus> for BacktraceStatus[src]

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

impl PartialEq<SeekFrom> for SeekFrom[src]

impl PartialEq<SocketAddrV6> for SocketAddrV6[src]

impl PartialEq<Instant> for Instant[src]

impl PartialEq<Ipv6Addr> for IpAddr[src]

impl PartialEq<Ipv4Addr> for IpAddr[src]

impl PartialEq<WaitTimeoutResult> for WaitTimeoutResult[src]

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

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

impl PartialEq<IpAddr> for IpAddr[src]

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

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

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

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

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

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

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

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

impl PartialEq<NulError> for NulError[src]

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

impl PartialEq<AddrParseError> for AddrParseError[src]

impl PartialEq<VarError> for VarError[src]

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

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

impl PartialEq<FileType> for FileType[src]

impl PartialEq<CStr> for CStr[src]

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

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

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

impl PartialEq<FromVecWithNulError> for FromVecWithNulError[src]

impl PartialEq<OsString> for OsString[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> 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 PartialEq<TypeId> for TypeId[src]

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

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

impl PartialEq<usize> for usize[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, 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 PartialEq<u16> for u16[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<fn(A, B, C, D, E) -> Ret> for fn(A, B, C, D, E) -> Ret[src]

impl PartialEq<NonZeroU32> for NonZeroU32[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 PartialEq<NonZeroUsize> for NonZeroUsize[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<unsafe fn(A, B) -> Ret> for unsafe fn(A, B) -> Ret[src]

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

impl PartialEq<DecodeUtf16Error> for DecodeUtf16Error[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, 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 PartialEq<f64> for f64[src]

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

impl PartialEq<NonZeroIsize> for NonZeroIsize[src]

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

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

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

impl PartialEq<u64> for u64[src]

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

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

impl PartialEq<NonZeroI32> for NonZeroI32[src]

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

impl PartialEq<FpCategory> for FpCategory[src]

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

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

impl PartialEq<char> for char[src]

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

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

impl PartialEq<NonZeroU128> for NonZeroU128[src]

impl<T> PartialEq<*mut T> for *mut T where
    T: ?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<'_, A, B, const N: usize> PartialEq<[A; N]> for &'_ [B] where
    B: PartialEq<A>, 
[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> PartialEq<unsafe fn(A, B, C, D, E) -> Ret> for unsafe fn(A, B, C, D, E) -> Ret[src]

impl PartialEq<!> for ![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<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>,
    F: PartialEq<F>,
    E: PartialEq<E>,
    G: PartialEq<G> + ?Sized,
    A: PartialEq<A>,
    B: PartialEq<B>,
    D: PartialEq<D>, 
[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 PartialEq<str> for str[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<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>,
    F: PartialEq<F>,
    E: PartialEq<E>,
    I: PartialEq<I> + ?Sized,
    G: PartialEq<G>,
    H: PartialEq<H>,
    A: PartialEq<A>,
    B: PartialEq<B>,
    D: PartialEq<D>, 
[src]

impl PartialEq<u8> for u8[src]

impl PartialEq<NonZeroI64> for NonZeroI64[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<i32> for i32[src]

impl PartialEq<ParseFloatError> for ParseFloatError[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<NonZeroI16> for NonZeroI16[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> PartialEq<unsafe extern "C" fn(A, B, C, ...) -> Ret> for unsafe extern "C" fn(A, B, C, ...) -> Ret[src]

impl PartialEq<u128> for u128[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<Dyn> PartialEq<DynMetadata<Dyn>> for DynMetadata<Dyn> where
    Dyn: ?Sized
[src]

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

impl PartialEq<i128> for i128[src]

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

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

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

impl PartialEq<f32> for f32[src]

impl PartialEq<PhantomPinned> for PhantomPinned[src]

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

impl PartialEq<i64> for i64[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>,
    F: PartialEq<F>,
    E: PartialEq<E>,
    G: PartialEq<G>,
    H: PartialEq<H> + ?Sized,
    A: PartialEq<A>,
    B: PartialEq<B>,
    D: PartialEq<D>, 
[src]

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

impl<T> PartialEq<PhantomData<T>> for PhantomData<T> where
    T: ?Sized
[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<u32> for u32[src]

impl<Ret, A, B, C> PartialEq<fn(A, B, C) -> Ret> for fn(A, B, C) -> Ret[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 PartialEq<()> for ()[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, 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<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> PartialEq<unsafe extern "C" fn(A, B, C, D, E, ...) -> Ret> for unsafe extern "C" fn(A, B, C, D, E, ...) -> 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 PartialEq<NonZeroI128> for NonZeroI128[src]

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

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

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

impl PartialEq<ParseCharError> for ParseCharError[src]

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

impl PartialEq<NonZeroU16> for NonZeroU16[src]

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

impl PartialEq<NonZeroU8> for NonZeroU8[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 PartialEq<i16> for i16[src]

impl PartialEq<RawWaker> for RawWaker[src]

impl PartialEq<isize> for isize[src]

impl PartialEq<IntErrorKind> for IntErrorKind[src]

impl PartialEq<NonZeroU64> for NonZeroU64[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<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<Ret> PartialEq<fn() -> Ret> for fn() -> Ret[src]

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

impl PartialEq<Duration> for Duration[src]

impl<Ret, A, B> PartialEq<fn(A, B) -> Ret> for fn(A, B) -> 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, 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> 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<Ret, A> PartialEq<fn(A) -> Ret> for fn(A) -> 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, 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<NonZeroI8> for NonZeroI8[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 PartialEq<i8> for i8[src]

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

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

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

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

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

impl PartialEq<_Unwind_Action> for _Unwind_Action

Loading content...

Implementors

impl PartialEq<CompareResult> for CompareResult[src]

impl PartialEq<Needed> for Needed[src]

impl PartialEq<ErrorKind> for nom::error::ErrorKind[src]

impl PartialEq<VerboseErrorKind> for VerboseErrorKind[src]

impl PartialEq<Endianness> for Endianness[src]

impl PartialEq<Ordering> for nom::lib::std::cmp::Ordering[src]

impl PartialEq<TryReserveError> for TryReserveError[src]

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

impl PartialEq<SearchStep> for SearchStep[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<Error> for Error[src]

impl PartialEq<RangeFull> for RangeFull[src]

impl PartialEq<NoneError> for NoneError[src]

impl PartialEq<ParseBoolError> for ParseBoolError[src]

impl PartialEq<Utf8Error> for Utf8Error[src]

impl PartialEq<FromUtf8Error> for FromUtf8Error[src]

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

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

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

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

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

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

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

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

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

Loading content...