1.0.0[−][src]Trait std::prelude::v1::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.

You can also combine these implementations to let the == operator work with two different types:

#[derive(PartialEq)]
enum BookFormat {
    Paperback,
    Hardback,
    Ebook,
}

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
    }
}

impl PartialEq for Book {
    fn eq(&self, other: &Book) -> bool {
        self.isbn == other.isbn
    }
}

let b1 = Book { isbn: 3, format: BookFormat::Paperback };
let b2 = Book { isbn: 3, format: BookFormat::Ebook };

assert!(b1 == BookFormat::Paperback);
assert!(BookFormat::Ebook != b1);
assert!(b1 == b2);

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

impl PartialEq<OsString> for str[src]

impl PartialEq<OsStr> for str[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<Ret, A, B, C, D, E, F, G> PartialEq<unsafe extern "C" fn(A, B, C, D, E, F, G, VaListImpl) -> Ret> for unsafe extern "C" fn(A, B, C, D, E, F, G, VaListImpl) -> Ret[src]

impl PartialEq<i128> for i128[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> 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<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> PartialEq<unsafe extern "C" fn(A, B, C) -> Ret> for unsafe extern "C" fn(A, B, C) -> 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<'b, const N: usize, A, B> PartialEq<&'b [B]> for [A; N] where
    A: PartialEq<B>,
    [A; N]: LengthAtMost32, [src]

impl PartialEq<i64> for i64[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, 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, VaListImpl) -> Ret> for extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, L, VaListImpl) -> Ret[src]

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

impl<Ret> PartialEq<fn() -> Ret> for fn() -> 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, H, I, J, K> PartialEq<unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, VaListImpl) -> Ret> for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, VaListImpl) -> 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, B, C> PartialEq<extern "C" fn(A, B, C, VaListImpl) -> Ret> for extern "C" fn(A, B, C, VaListImpl) -> 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<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 PartialEq<u8> for u8[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, VaListImpl) -> Ret> for extern "C" fn(A, B, C, D, E, F, G, H, I, J, VaListImpl) -> Ret[src]

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

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

impl PartialEq<i32> for i32[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, VaListImpl) -> Ret> for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, L, VaListImpl) -> Ret[src]

impl PartialEq<str> for str[src]

impl PartialEq<f64> for f64[src]

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

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

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

impl<const N: usize, A, B> PartialEq<[B]> for [A; N] where
    A: PartialEq<B>,
    [A; N]: LengthAtMost32, [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 fn(A, B, C) -> Ret> for unsafe 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<Ret, A, B, C> PartialEq<unsafe extern "C" fn(A, B, C, VaListImpl) -> Ret> for unsafe extern "C" fn(A, B, C, VaListImpl) -> Ret[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<u64> for u64[src]

impl PartialEq<u32> for u32[src]

impl<Ret, A> PartialEq<unsafe extern "C" fn(A) -> Ret> for unsafe extern "C" fn(A) -> 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<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, 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, G, H, I> PartialEq<unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, VaListImpl) -> Ret> for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, VaListImpl) -> Ret[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, 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 PartialEq<()> for ()[src]

impl PartialEq<u16> for u16[src]

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

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

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

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

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

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

impl PartialEq<f32> for f32[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<unsafe extern "C" fn(A, B, C, D, E, F, VaListImpl) -> Ret> for unsafe extern "C" fn(A, B, C, D, E, F, VaListImpl) -> Ret[src]

impl PartialEq<i8> for i8[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> 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<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<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> 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, 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<A, B> PartialEq<(A, B)> for (A, B) where
    A: PartialEq<A>,
    B: PartialEq<B> + ?Sized, [src]

impl PartialEq<isize> for isize[src]

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

impl PartialEq<u128> for u128[src]

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

impl<Ret, A, B, C, D> PartialEq<extern "C" fn(A, B, C, D, VaListImpl) -> Ret> for extern "C" fn(A, B, C, D, VaListImpl) -> 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<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<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, VaListImpl) -> Ret> for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J, VaListImpl) -> 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<char> for char[src]

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

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

impl PartialEq<usize> for usize[src]

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

impl PartialEq<i16> for i16[src]

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

impl<Ret, A, B> PartialEq<extern "C" fn(A, B, VaListImpl) -> Ret> for extern "C" fn(A, B, VaListImpl) -> 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 PartialEq<!> for ![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, H, I, J, K> PartialEq<extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, VaListImpl) -> Ret> for extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, VaListImpl) -> 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<'_, '_, A, B> PartialEq<&'_ mut B> for &'_ A where
    A: PartialEq<B> + ?Sized,
    B: ?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
    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> 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> 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> PartialEq<unsafe fn(A, B) -> Ret> for unsafe fn(A, B) -> 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<Ret, A, B> PartialEq<fn(A, B) -> Ret> for fn(A, B) -> Ret[src]

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

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

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

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

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

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

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

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

impl PartialEq<_Unwind_Action> for _Unwind_Action

impl PartialEq<_Unwind_Reason_Code> for _Unwind_Reason_Code

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

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

impl PartialEq<CollectionAllocErr> for CollectionAllocErr

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Implementors

impl PartialEq<AccessError> for AccessError[src]

impl PartialEq<SeekFrom> for SeekFrom[src]

impl PartialEq<ExitStatus> for ExitStatus[src]

impl PartialEq<ThreadId> for ThreadId[src]

impl PartialEq<WaitTimeoutResult> for WaitTimeoutResult[src]

impl PartialEq<RecvError> for RecvError[src]

impl PartialEq<RecvTimeoutError> for RecvTimeoutError[src]

impl PartialEq<CStr> for CStr[src]

impl PartialEq<StripPrefixError> for StripPrefixError[src]

impl PartialEq<ErrorKind> for ErrorKind[src]

impl PartialEq<VarError> for VarError[src]

impl PartialEq<FromBytesWithNulError> for FromBytesWithNulError[src]

impl PartialEq<SystemTime> for SystemTime[src]

impl PartialEq<OsString> for OsString[src]

impl PartialEq<Path> for Path[src]

impl PartialEq<OsStr> for OsStr[src]

impl PartialEq<IpAddr> for IpAddr[src]

impl PartialEq<FileType> for FileType[src]

impl PartialEq<TryRecvError> for TryRecvError[src]

impl PartialEq<CString> for CString[src]

impl PartialEq<PathBuf> for PathBuf[src]

impl PartialEq<SocketAddr> for SocketAddr[src]

impl PartialEq<IntoStringError> for IntoStringError[src]

impl PartialEq<str> for OsString[src]

impl PartialEq<str> for OsStr[src]

impl PartialEq<Shutdown> for Shutdown[src]

impl PartialEq<Output> for Output[src]

impl PartialEq<AddrParseError> for AddrParseError[src]

impl PartialEq<Permissions> for Permissions[src]

impl PartialEq<NulError> for NulError[src]

impl PartialEq<Instant> for Instant[src]

impl PartialEq<TryFromIntError> for TryFromIntError[src]

impl PartialEq<NoneError> for NoneError[src]

impl PartialEq<AllocErr> for AllocErr[src]

impl PartialEq<CharTryFromError> for CharTryFromError[src]

impl PartialEq<CannotReallocInPlace> for CannotReallocInPlace[src]

impl PartialEq<NonZeroUsize> for NonZeroUsize[src]

impl PartialEq<Error> for Error[src]

impl PartialEq<TypeId> for TypeId[src]

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

impl PartialEq<SearchStep> for SearchStep[src]

impl PartialEq<Duration> for Duration[src]

impl PartialEq<RawWaker> for RawWaker[src]

impl PartialEq<IntErrorKind> for IntErrorKind[src]

impl PartialEq<ParseIntError> for ParseIntError[src]

impl PartialEq<NonZeroIsize> for NonZeroIsize[src]

impl PartialEq<FpCategory> for FpCategory[src]

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

impl PartialEq<RawWakerVTable> for RawWakerVTable[src]

impl PartialEq<LayoutErr> for LayoutErr[src]

impl PartialEq<RangeFull> for RangeFull[src]

impl PartialEq<ParseBoolError> for ParseBoolError[src]

impl PartialEq<ParseFloatError> for ParseFloatError[src]

impl PartialEq<ParseCharError> for ParseCharError[src]

impl PartialEq<PhantomPinned> for PhantomPinned[src]

impl PartialEq<UnicodeVersion> for UnicodeVersion[src]

impl PartialEq<Infallible> for Infallible[src]

impl PartialEq<Layout> for Layout[src]

impl PartialEq<TryReserveError> for TryReserveError[src]

impl PartialEq<IpAddr> for Ipv4Addr[src]

impl PartialEq<IpAddr> for Ipv6Addr[src]

impl PartialEq<Ipv6MulticastScope> for Ipv6MulticastScope[src]

impl PartialEq<CpuidResult> for CpuidResult[src]

impl PartialEq<DecodeUtf16Error> for DecodeUtf16Error[src]

impl PartialEq<Ipv4Addr> for IpAddr[src]

impl PartialEq<Ipv4Addr> for Ipv4Addr[src]

impl PartialEq<Ipv6Addr> for IpAddr[src]

impl PartialEq<Ipv6Addr> for Ipv6Addr[src]

impl PartialEq<SocketAddrV4> for SocketAddrV4[src]

impl PartialEq<SocketAddrV6> for SocketAddrV6[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<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<String> for String[src]

impl PartialEq<Utf8Error> for Utf8Error[src]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

impl<'a, 'b> PartialEq<String> for Cow<'a, str>[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<K, V, S> PartialEq<HashMap<K, V, S>> for std::collections::hash_map::HashMap<K, V, S> where
    K: Eq + Hash,
    S: BuildHasher,
    V: PartialEq<V>, [src]

impl<P, Q> PartialEq<Pin<Q>> for Pin<P> where
    P: PartialEq<Q>, [src]

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

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

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

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

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

impl<T> PartialEq<Cell<T>> for Cell<T> where
    T: Copy + PartialEq<T>, [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<Reverse<T>> for Reverse<T> where
    T: PartialEq<T>, [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<PhantomData<T>> for PhantomData<T> where
    T: ?Sized, [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<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.

If T also implements Eq, two Rcs that point to the same value 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, two Rcs that point to the same value 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.

If T also implements Eq, two Arcs that point to the same value 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, 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<T, S> PartialEq<HashSet<T, S>> for std::collections::hash_set::HashSet<T, S> where
    S: BuildHasher,
    T: Eq + Hash, [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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