Trait Ord

1.0.0 · Source
pub trait Ord: Eq + PartialOrd {
    // Required method
    fn cmp(&self, other: &Self) -> Ordering;

    // Provided methods
    fn max(self, other: Self) -> Self
       where Self: Sized { ... }
    fn min(self, other: Self) -> Self
       where Self: Sized { ... }
    fn clamp(self, min: Self, max: Self) -> Self
       where Self: Sized { ... }
}
Expand description

Trait for types that form a total order.

Implementations must be consistent with the PartialOrd implementation, and ensure max, min, and clamp are consistent with cmp:

  • partial_cmp(a, b) == Some(cmp(a, b)).
  • max(a, b) == max_by(a, b, cmp) (ensured by the default implementation).
  • min(a, b) == min_by(a, b, cmp) (ensured by the default implementation).
  • For a.clamp(min, max), see the method docs (ensured by the default implementation).

Violating these requirements is a logic error. The behavior resulting from a logic error is not specified, but users of the trait must ensure that such logic errors do not result in undefined behavior. This means that unsafe code must not rely on the correctness of these methods.

§Corollaries

From the above and the requirements of PartialOrd, it follows that for all a, b and c:

  • exactly one of a < b, a == b or a > b is true; and
  • < is transitive: a < b and b < c implies a < c. The same must hold for both == and >.

Mathematically speaking, the < operator defines a strict weak order. In cases where == conforms to mathematical equality, it also defines a strict total order.

§Derivable

This trait can be used with #[derive].

When derived on structs, it will produce a lexicographic ordering based on the top-to-bottom declaration order of the struct’s members.

When derived on enums, variants are ordered primarily by their discriminants. Secondarily, they are ordered by their fields. By default, the discriminant is smallest for variants at the top, and largest for variants at the bottom. Here’s an example:

#[derive(PartialEq, Eq, PartialOrd, Ord)]
enum E {
    Top,
    Bottom,
}

assert!(E::Top < E::Bottom);

However, manually setting the discriminants can override this default behavior:

#[derive(PartialEq, Eq, PartialOrd, Ord)]
enum E {
    Top = 2,
    Bottom = 1,
}

assert!(E::Bottom < E::Top);

§Lexicographical comparison

Lexicographical comparison is an operation with the following properties:

  • Two sequences are compared element by element.
  • The first mismatching element defines which sequence is lexicographically less or greater than the other.
  • If one sequence is a prefix of another, the shorter sequence is lexicographically less than the other.
  • If two sequences have equivalent elements and are of the same length, then the sequences are lexicographically equal.
  • An empty sequence is lexicographically less than any non-empty sequence.
  • Two empty sequences are lexicographically equal.

§How can I implement Ord?

Ord requires that the type also be PartialOrd, PartialEq, and Eq.

Because Ord implies a stronger ordering relationship than PartialOrd, and both Ord and PartialOrd must agree, you must choose how to implement Ord first. You can choose to derive it, or implement it manually. If you derive it, you should derive all four traits. If you implement it manually, you should manually implement all four traits, based on the implementation of Ord.

Here’s an example where you want to define the Character comparison by health and experience only, disregarding the field mana:

use std::cmp::Ordering;

struct Character {
    health: u32,
    experience: u32,
    mana: f32,
}

impl Ord for Character {
    fn cmp(&self, other: &Self) -> Ordering {
        self.experience
            .cmp(&other.experience)
            .then(self.health.cmp(&other.health))
    }
}

impl PartialOrd for Character {
    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
        Some(self.cmp(other))
    }
}

impl PartialEq for Character {
    fn eq(&self, other: &Self) -> bool {
        self.health == other.health && self.experience == other.experience
    }
}

impl Eq for Character {}

If all you need is to slice::sort a type by a field value, it can be simpler to use slice::sort_by_key.

§Examples of incorrect Ord implementations

use std::cmp::Ordering;

#[derive(Debug)]
struct Character {
    health: f32,
}

impl Ord for Character {
    fn cmp(&self, other: &Self) -> std::cmp::Ordering {
        if self.health < other.health {
            Ordering::Less
        } else if self.health > other.health {
            Ordering::Greater
        } else {
            Ordering::Equal
        }
    }
}

impl PartialOrd for Character {
    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
        Some(self.cmp(other))
    }
}

impl PartialEq for Character {
    fn eq(&self, other: &Self) -> bool {
        self.health == other.health
    }
}

impl Eq for Character {}

let a = Character { health: 4.5 };
let b = Character { health: f32::NAN };

// Mistake: floating-point values do not form a total order and using the built-in comparison
// operands to implement `Ord` irregardless of that reality does not change it. Use
// `f32::total_cmp` if you need a total order for floating-point values.

// Reflexivity requirement of `Ord` is not given.
assert!(a == a);
assert!(b != b);

// Antisymmetry requirement of `Ord` is not given. Only one of a < c and c < a is allowed to be
// true, not both or neither.
assert_eq!((a < b) as u8 + (b < a) as u8, 0);
use std::cmp::Ordering;

#[derive(Debug)]
struct Character {
    health: u32,
    experience: u32,
}

impl PartialOrd for Character {
    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
        Some(self.cmp(other))
    }
}

impl Ord for Character {
    fn cmp(&self, other: &Self) -> std::cmp::Ordering {
        if self.health < 50 {
            self.health.cmp(&other.health)
        } else {
            self.experience.cmp(&other.experience)
        }
    }
}

// For performance reasons implementing `PartialEq` this way is not the idiomatic way, but it
// ensures consistent behavior between `PartialEq`, `PartialOrd` and `Ord` in this example.
impl PartialEq for Character {
    fn eq(&self, other: &Self) -> bool {
        self.cmp(other) == Ordering::Equal
    }
}

impl Eq for Character {}

let a = Character {
    health: 3,
    experience: 5,
};
let b = Character {
    health: 10,
    experience: 77,
};
let c = Character {
    health: 143,
    experience: 2,
};

// Mistake: The implementation of `Ord` compares different fields depending on the value of
// `self.health`, the resulting order is not total.

// Transitivity requirement of `Ord` is not given. If a is smaller than b and b is smaller than
// c, by transitive property a must also be smaller than c.
assert!(a < b && b < c && c < a);

// Antisymmetry requirement of `Ord` is not given. Only one of a < c and c < a is allowed to be
// true, not both or neither.
assert_eq!((a < c) as u8 + (c < a) as u8, 2);

The documentation of PartialOrd contains further examples, for example it’s wrong for PartialOrd and PartialEq to disagree.

Required Methods§

1.0.0 · Source

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

By convention, self.cmp(&other) returns the ordering matching the expression self <operator> other if true.

§Examples
use std::cmp::Ordering;

assert_eq!(5.cmp(&10), Ordering::Less);
assert_eq!(10.cmp(&5), Ordering::Greater);
assert_eq!(5.cmp(&5), Ordering::Equal);

Provided Methods§

1.21.0 · Source

fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values.

Returns the second argument if the comparison determines them to be equal.

§Examples
assert_eq!(1.max(2), 2);
assert_eq!(2.max(2), 2);
use std::cmp::Ordering;

#[derive(Eq)]
struct Equal(&'static str);

impl PartialEq for Equal {
    fn eq(&self, other: &Self) -> bool { true }
}
impl PartialOrd for Equal {
    fn partial_cmp(&self, other: &Self) -> Option<Ordering> { Some(Ordering::Equal) }
}
impl Ord for Equal {
    fn cmp(&self, other: &Self) -> Ordering { Ordering::Equal }
}

assert_eq!(Equal("self").max(Equal("other")).0, "other");
1.21.0 · Source

fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values.

Returns the first argument if the comparison determines them to be equal.

§Examples
assert_eq!(1.min(2), 1);
assert_eq!(2.min(2), 2);
use std::cmp::Ordering;

#[derive(Eq)]
struct Equal(&'static str);

impl PartialEq for Equal {
    fn eq(&self, other: &Self) -> bool { true }
}
impl PartialOrd for Equal {
    fn partial_cmp(&self, other: &Self) -> Option<Ordering> { Some(Ordering::Equal) }
}
impl Ord for Equal {
    fn cmp(&self, other: &Self) -> Ordering { Ordering::Equal }
}

assert_eq!(Equal("self").min(Equal("other")).0, "self");
1.50.0 · Source

fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval.

Returns max if self is greater than max, and min if self is less than min. Otherwise this returns self.

§Panics

Panics if min > max.

§Examples
assert_eq!((-3).clamp(-2, 1), -2);
assert_eq!(0.clamp(-2, 1), 0);
assert_eq!(2.clamp(-2, 1), 1);

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors§

Source§

impl Ord for ForwardKind

1.0.0 · Source§

impl Ord for ErrorKind

§

impl Ord for Encoding

§

impl Ord for PseudoHeader

§

impl Ord for SettingId

§

impl Ord for rama::net::address::Host

Source§

impl Ord for IpAddrRange

Source§

impl Ord for IpSubnets

Source§

impl Ord for IpNet

§

impl Ord for ServerVerifyMode

§

impl Ord for CertificateCompressionAlgorithm

§

impl Ord for CipherSuite

§

impl Ord for CompressionAlgorithm

§

impl Ord for DataEncoding

§

impl Ord for ECPointFormat

§

impl Ord for ExtensionId

§

impl Ord for rama::net::tls::ProtocolVersion

§

impl Ord for SignatureScheme

§

impl Ord for SupportedGroup

§

impl Ord for ClientVerifyMode

§

impl Ord for TransportProtocol

§

impl Ord for AddressType

§

impl Ord for Command

§

impl Ord for rama::proxy::socks5::proto::ProtocolVersion

§

impl Ord for ReplyKind

§

impl Ord for SocksMethod

§

impl Ord for UsernamePasswordSubnegotiationVersion

§

impl Ord for Severity

§

impl Ord for SslInfoCallbackValue

Source§

impl Ord for Sign

§

impl Ord for ASN1TimeZone

1.34.0 · Source§

impl Ord for Infallible

1.0.0 · Source§

impl Ord for Ordering

Source§

impl Ord for AsciiChar

1.7.0 · Source§

impl Ord for IpAddr

1.0.0 · Source§

impl Ord for SocketAddr

Source§

impl Ord for Month

Source§

impl Ord for log::Level

Source§

impl Ord for log::LevelFilter

1.0.0 · Source§

impl Ord for bool

1.0.0 · Source§

impl Ord for char

1.0.0 · Source§

impl Ord for i8

1.0.0 · Source§

impl Ord for i16

1.0.0 · Source§

impl Ord for i32

1.0.0 · Source§

impl Ord for i64

1.0.0 · Source§

impl Ord for i128

1.0.0 · Source§

impl Ord for isize

Source§

impl Ord for !

1.0.0 · Source§

impl Ord for str

Implements ordering of strings.

Strings are ordered lexicographically by their byte values. This orders Unicode code points based on their positions in the code charts. This is not necessarily the same as “alphabetical” order, which varies by language and locale. Sorting strings according to culturally-accepted standards requires locale-specific data that is outside the scope of the str type.

1.0.0 · Source§

impl Ord for u8

1.0.0 · Source§

impl Ord for u16

1.0.0 · Source§

impl Ord for u32

1.0.0 · Source§

impl Ord for u64

1.0.0 · Source§

impl Ord for u128

1.0.0 · Source§

impl Ord for ()

1.0.0 · Source§

impl Ord for usize

§

impl Ord for Bytes

§

impl Ord for BytesMut

§

impl Ord for ReasonPhrase

§

impl Ord for Quality

§

impl Ord for AccessControlMaxAge

§

impl Ord for Age

§

impl Ord for rama::http::headers::Date

§

impl Ord for Expires

§

impl Ord for IfModifiedSince

§

impl Ord for IfUnmodifiedSince

§

impl Ord for LastModified

Source§

impl Ord for Mime

§

impl Ord for Server

§

impl Ord for UserAgent

§

impl Ord for rama::http::headers::util::HttpDate

§

impl Ord for Seconds

§

impl Ord for DnsResolveMode

§

impl Ord for StreamId

§

impl Ord for HeaderByteLength

§

impl Ord for HeaderValue

§

impl Ord for StatusCode

§

impl Ord for Version

§

impl Ord for Utf8Bytes

§

impl Ord for Authority

§

impl Ord for rama::net::address::Domain

§

impl Ord for DomainAddress

§

impl Ord for SocketAddress

§

impl Ord for Asn

§

impl Ord for ForwardedProtocol

§

impl Ord for ForwardedVersion

§

impl Ord for NodeId

§

impl Ord for ProxyTarget

§

impl Ord for DeviceName

Source§

impl Ord for Ipv4AddrRange

Source§

impl Ord for Ipv4Subnets

Source§

impl Ord for Ipv6AddrRange

Source§

impl Ord for Ipv6Subnets

Source§

impl Ord for Ipv4Net

Source§

impl Ord for Ipv6Net

§

impl Ord for Protocol

§

impl Ord for ProxyID

§

impl Ord for rama::telemetry::opentelemetry::Key

§

impl Ord for rama::telemetry::tracing::level_filters::LevelFilter

§

impl Ord for rama::telemetry::tracing::Level

§

impl Ord for BigNum

§

impl Ord for BigNumRef

§

impl Ord for ShutdownState

§

impl Ord for SslInfoCallbackAlert

§

impl Ord for SslInfoCallbackMode

§

impl Ord for SslMode

§

impl Ord for SslOptions

§

impl Ord for SslSessionCacheMode

§

impl Ord for SslVerifyMode

§

impl Ord for X509CheckFlags

§

impl Ord for X509VerifyFlags

§

impl Ord for AnyDelimiterCodec

§

impl Ord for BytesCodec

§

impl Ord for LinesCodec

§

impl Ord for NonEmptyString

§

impl Ord for UnixTime

Source§

impl Ord for BigInt

Source§

impl Ord for BigUint

§

impl Ord for rama::crypto::dep::x509_parser::prelude::ASN1Time

§

impl Ord for ASN1DateTime

§

impl Ord for rama::crypto::dep::x509_parser::prelude::asn1_rs::GeneralizedTime

§

impl Ord for UtcTime

1.0.0 · Source§

impl Ord for Error

1.0.0 · Source§

impl Ord for String

Source§

impl Ord for ByteString

1.64.0 · Source§

impl Ord for CString

1.0.0 · Source§

impl Ord for TypeId

Source§

impl Ord for ByteStr

1.27.0 · Source§

impl Ord for CpuidResult

1.0.0 · Source§

impl Ord for CStr

1.33.0 · Source§

impl Ord for PhantomPinned

1.0.0 · Source§

impl Ord for Ipv4Addr

1.0.0 · Source§

impl Ord for Ipv6Addr

1.0.0 · Source§

impl Ord for SocketAddrV4

1.0.0 · Source§

impl Ord for SocketAddrV6

Source§

impl Ord for Alignment

1.3.0 · Source§

impl Ord for core::time::Duration

1.0.0 · Source§

impl Ord for OsStr

1.0.0 · Source§

impl Ord for OsString

1.0.0 · Source§

impl Ord for Components<'_>

1.0.0 · Source§

impl Ord for Path

1.0.0 · Source§

impl Ord for PathBuf

1.0.0 · Source§

impl Ord for PrefixComponent<'_>

1.8.0 · Source§

impl Ord for std::time::Instant

1.8.0 · Source§

impl Ord for SystemTime

Source§

impl Ord for Months

Source§

impl Ord for NaiveDate

Source§

impl Ord for NaiveDateDaysIterator

Source§

impl Ord for NaiveDateWeeksIterator

Source§

impl Ord for NaiveDateTime

Source§

impl Ord for IsoWeek

Source§

impl Ord for Days

Source§

impl Ord for NaiveTime

Source§

impl Ord for TimeDelta

Source§

impl Ord for WeekdaySet

Source§

impl Ord for ATerm

Source§

impl Ord for B0

Source§

impl Ord for B1

Source§

impl Ord for Z0

Source§

impl Ord for Equal

Source§

impl Ord for Greater

Source§

impl Ord for Less

Source§

impl Ord for UTerm

Source§

impl Ord for Url

URLs compare like their serialization.

Source§

impl Ord for Braced

Source§

impl Ord for Hyphenated

Source§

impl Ord for Simple

Source§

impl Ord for Urn

Source§

impl Ord for Uuid

§

impl Ord for ASN1Time

§

impl Ord for Attribute

§

impl Ord for Attributes

§

impl Ord for BERMode

§

impl Ord for BidiClass

§

impl Ord for BigEndian

§

impl Ord for BigEndian

§

impl Ord for CanonicalCombiningClass

§

impl Ord for CharULE

§

impl Ord for ClassBytesRange

§

impl Ord for ClassUnicodeRange

§

impl Ord for DNSClass

§

impl Ord for DataMarkerAttributes

§

impl Ord for DataMarkerId

§

impl Ord for DataMarkerIdHash

§

impl Ord for DataMarkerInfo

§

impl Ord for DataRequestMetadata

§

impl Ord for Date

§

impl Ord for Domain<'_>

§

impl Ord for Duration

§

impl Ord for EastAsianWidth

§

impl Ord for ExtensionType

§

impl Ord for Fields

§

impl Ord for GeneralCategory

§

impl Ord for GeneralCategoryOutOfBoundsError

§

impl Ord for GeneralCategoryULE

§

impl Ord for GeneralizedTime

§

impl Ord for GraphemeClusterBreak

§

impl Ord for HangulSyllableType

§

impl Ord for HttpDate

§

impl Ord for Index8

§

impl Ord for Index16

§

impl Ord for Index32

§

impl Ord for IndicSyllabicCategory

§

impl Ord for Info

§

impl Ord for InsertError

§

impl Ord for Instant

§

impl Ord for Interest

§

impl Ord for JoiningType

§

impl Ord for Key

§

impl Ord for Key

§

impl Ord for Keywords

§

impl Ord for Label

§

impl Ord for Language

§

impl Ord for LazyStateID

§

impl Ord for LineBreak

§

impl Ord for Literal

§

impl Ord for LittleEndian

§

impl Ord for LittleEndian

§

impl Ord for Local

§

impl Ord for LowerName

§

impl Ord for Name

§

impl Ord for NonMaxUsize

§

impl Ord for NormalizedPathBuf

§

impl Ord for Null

§

impl Ord for ObjectIdentifier

§

impl Ord for OffsetDateTime

§

impl Ord for Other

§

impl Ord for PCBit

§

impl Ord for PatternID

§

impl Ord for PatternID

§

impl Ord for Position

§

impl Ord for PotentialCodePoint

§

impl Ord for PotentialUtf8

§

impl Ord for PotentialUtf16

§

impl Ord for PrimitiveDateTime

§

impl Ord for Private

§

impl Ord for RData

§

impl Ord for Ready

§

impl Ord for Record

§

impl Ord for RecordType

§

impl Ord for Region

§

impl Ord for RrKey

§

impl Ord for Script

§

impl Ord for Script

§

impl Ord for SentenceBreak

§

impl Ord for SigId

§

impl Ord for SmallIndex

§

impl Ord for SmolStr

§

impl Ord for Span

§

impl Ord for StateID

§

impl Ord for StateID

§

impl Ord for SubdivisionId

§

impl Ord for SubdivisionSuffix

§

impl Ord for Subtag

§

impl Ord for Subtag

§

impl Ord for Suffix<'_>

§

impl Ord for SvcParamKey

§

impl Ord for Tag

§

impl Ord for TagClass

§

impl Ord for TaggedDerValue

§

impl Ord for Time

§

impl Ord for Token

§

impl Ord for Type

§

impl Ord for UTCTime

§

impl Ord for Unit

§

impl Ord for UriTemplateStr

§

impl Ord for UriTemplateString

§

impl Ord for Utc

§

impl Ord for UtcDateTime

§

impl Ord for UtcOffset

§

impl Ord for Utf8Range

§

impl Ord for Utf8Sequence

§

impl Ord for Value

§

impl Ord for Value

§

impl Ord for Variant

§

impl Ord for Variants

§

impl Ord for VerticalOrientation

§

impl Ord for WordBreak

§

impl Ord for ZipString

1.0.0 · Source§

impl<'a> Ord for Component<'a>

1.0.0 · Source§

impl<'a> Ord for Prefix<'a>

Source§

impl<'a> Ord for rama::http::dep::mime::Name<'a>

Source§

impl<'a> Ord for PhantomContravariantLifetime<'a>

Source§

impl<'a> Ord for PhantomCovariantLifetime<'a>

Source§

impl<'a> Ord for PhantomInvariantLifetime<'a>

1.10.0 · Source§

impl<'a> Ord for Location<'a>

Source§

impl<'a> Ord for Metadata<'a>

Source§

impl<'a> Ord for MetadataBuilder<'a>

§

impl<'a> Ord for NormalizedPath<'a>

§

impl<'a> Ord for RawPath<'a>

§

impl<'a> Ord for ZipStr<'a>

§

impl<'a, T> Ord for ZeroVec<'a, T>
where T: AsULE + Ord,

§

impl<'a, T, F> Ord for VarZeroVec<'a, T, F>
where T: VarULE + Ord + ?Sized, F: VarZeroVecFormat,

§

impl<'a, V> Ord for VarZeroCow<'a, V>
where V: VarULE + Ord + ?Sized,

§

impl<'k, 'v> Ord for Params<'k, 'v>

§

impl<'s, T> Ord for SliceVec<'s, T>
where T: Ord,

1.0.0 · Source§

impl<A> Ord for &A
where A: Ord + ?Sized,

1.0.0 · Source§

impl<A> Ord for &mut A
where A: Ord + ?Sized,

§

impl<A> Ord for ArrayVec<A>
where A: Array, <A as Array>::Item: Ord,

§

impl<A> Ord for SmallVec<A>
where A: Array, <A as Array>::Item: Ord,

§

impl<A> Ord for TinyVec<A>
where A: Array, <A as Array>::Item: Ord,

§

impl<A, B> Ord for Tuple2ULE<A, B>
where A: Ord + ULE, B: Ord + ULE,

§

impl<A, B> Ord for VarTuple<A, B>
where A: Ord, B: Ord,

§

impl<A, B, C> Ord for Tuple3ULE<A, B, C>
where A: Ord + ULE, B: Ord + ULE, C: Ord + ULE,

§

impl<A, B, C, D> Ord for Tuple4ULE<A, B, C, D>
where A: Ord + ULE, B: Ord + ULE, C: Ord + ULE, D: Ord + ULE,

§

impl<A, B, C, D, E> Ord for Tuple5ULE<A, B, C, D, E>
where A: Ord + ULE, B: Ord + ULE, C: Ord + ULE, D: Ord + ULE, E: Ord + ULE,

§

impl<A, B, C, D, E, F> Ord for Tuple6ULE<A, B, C, D, E, F>
where A: Ord + ULE, B: Ord + ULE, C: Ord + ULE, D: Ord + ULE, E: Ord + ULE, F: Ord + ULE,

§

impl<A, B, C, D, E, F, Format> Ord for Tuple6VarULE<A, B, C, D, E, F, Format>
where A: Ord + VarULE + ?Sized, B: Ord + VarULE + ?Sized, C: Ord + VarULE + ?Sized, D: Ord + VarULE + ?Sized, E: Ord + VarULE + ?Sized, F: Ord + VarULE + ?Sized, Format: VarZeroVecFormat,

§

impl<A, B, C, D, E, Format> Ord for Tuple5VarULE<A, B, C, D, E, Format>
where A: Ord + VarULE + ?Sized, B: Ord + VarULE + ?Sized, C: Ord + VarULE + ?Sized, D: Ord + VarULE + ?Sized, E: Ord + VarULE + ?Sized, Format: VarZeroVecFormat,

§

impl<A, B, C, D, Format> Ord for Tuple4VarULE<A, B, C, D, Format>
where A: Ord + VarULE + ?Sized, B: Ord + VarULE + ?Sized, C: Ord + VarULE + ?Sized, D: Ord + VarULE + ?Sized, Format: VarZeroVecFormat,

§

impl<A, B, C, Format> Ord for Tuple3VarULE<A, B, C, Format>
where A: Ord + VarULE + ?Sized, B: Ord + VarULE + ?Sized, C: Ord + VarULE + ?Sized, Format: VarZeroVecFormat,

§

impl<A, B, Format> Ord for Tuple2VarULE<A, B, Format>
where A: Ord + VarULE + ?Sized, B: Ord + VarULE + ?Sized, Format: VarZeroVecFormat,

§

impl<A, V> Ord for VarTupleULE<A, V>
where A: Ord + AsULE, V: Ord + VarULE + ?Sized, <A as AsULE>::ULE: Ord,

1.0.0 · Source§

impl<B> Ord for Cow<'_, B>
where B: Ord + ToOwned + ?Sized,

Source§

impl<Dyn> Ord for DynMetadata<Dyn>
where Dyn: ?Sized,

1.4.0 · Source§

impl<F> Ord for F
where F: FnPtr,

§

impl<K, V> Ord for Slice<K, V>
where K: Ord, V: Ord,

1.0.0 · Source§

impl<K, V, A> Ord for BTreeMap<K, V, A>
where K: Ord, V: Ord, A: Allocator + Clone,

§

impl<K, V, S> Ord for LiteMap<K, V, S>
where K: Ord + ?Sized, V: Ord + ?Sized, S: Ord,

Source§

impl<L, R> Ord for Either<L, R>
where L: Ord, R: Ord,

§

impl<O> Ord for I16<O>
where O: ByteOrder,

§

impl<O> Ord for I32<O>
where O: ByteOrder,

§

impl<O> Ord for I64<O>
where O: ByteOrder,

§

impl<O> Ord for I128<O>
where O: ByteOrder,

§

impl<O> Ord for Isize<O>
where O: ByteOrder,

§

impl<O> Ord for U16<O>
where O: ByteOrder,

§

impl<O> Ord for U32<O>
where O: ByteOrder,

§

impl<O> Ord for U64<O>
where O: ByteOrder,

§

impl<O> Ord for U128<O>
where O: ByteOrder,

§

impl<O> Ord for Usize<O>
where O: ByteOrder,

1.41.0 · Source§

impl<Ptr> Ord for Pin<Ptr>
where Ptr: Deref, <Ptr as Deref>::Target: Ord,

§

impl<R> Ord for ZipFilePath<R>
where R: Ord,

Source§

impl<S> Ord for url::host::Host<S>
where S: Ord,

§

impl<S> Ord for RiAbsoluteStr<S>
where S: Spec,

§

impl<S> Ord for RiAbsoluteString<S>
where S: Spec,

§

impl<S> Ord for RiFragmentStr<S>
where S: Spec,

§

impl<S> Ord for RiFragmentString<S>
where S: Spec,

§

impl<S> Ord for RiQueryStr<S>
where S: Spec,

§

impl<S> Ord for RiQueryString<S>
where S: Spec,

§

impl<S> Ord for RiReferenceStr<S>
where S: Spec,

§

impl<S> Ord for RiReferenceString<S>
where S: Spec,

§

impl<S> Ord for RiRelativeStr<S>
where S: Spec,

§

impl<S> Ord for RiRelativeString<S>
where S: Spec,

§

impl<S> Ord for RiStr<S>
where S: Spec,

§

impl<S> Ord for RiString<S>
where S: Spec,

§

impl<Storage> Ord for __BindgenBitfieldUnit<Storage>
where Storage: Ord,

§

impl<Storage> Ord for __BindgenBitfieldUnit<Storage>
where Storage: Ord,

1.36.0 · Source§

impl<T> Ord for Poll<T>
where T: Ord,

1.0.0 · Source§

impl<T> Ord for Option<T>
where T: Ord,

1.0.0 · Source§

impl<T> Ord for *const T
where T: ?Sized,

Pointer comparison is by address, as produced by the [<*const T>::addr](pointer::addr) method.

1.0.0 · Source§

impl<T> Ord for *mut T
where T: ?Sized,

Pointer comparison is by address, as produced by the <*mut T>::addr method.

1.0.0 · Source§

impl<T> Ord for [T]
where T: Ord,

Implements comparison of slices lexicographically.

1.0.0 · Source§

impl<T> Ord for (T₁, T₂, …, Tₙ)
where T: Ord + ?Sized,

This trait is implemented for tuples up to twelve items long.

§

impl<T> Ord for AllowStdIo<T>
where T: Ord,

1.20.0 · Source§

impl<T> Ord for ManuallyDrop<T>
where T: Ord + ?Sized,

1.10.0 · Source§

impl<T> Ord for Cell<T>
where T: Ord + Copy,

1.10.0 · Source§

impl<T> Ord for RefCell<T>
where T: Ord + ?Sized,

1.0.0 · Source§

impl<T> Ord for PhantomData<T>
where T: ?Sized,

Source§

impl<T> Ord for PhantomContravariant<T>
where T: ?Sized,

Source§

impl<T> Ord for PhantomCovariant<T>
where T: ?Sized,

Source§

impl<T> Ord for PhantomInvariant<T>
where T: ?Sized,

1.28.0 · Source§

impl<T> Ord for NonZero<T>

1.74.0 · Source§

impl<T> Ord for Saturating<T>
where T: Ord,

1.0.0 · Source§

impl<T> Ord for Wrapping<T>
where T: Ord,

1.25.0 · Source§

impl<T> Ord for NonNull<T>
where T: ?Sized,

1.19.0 · Source§

impl<T> Ord for Reverse<T>
where T: Ord,

§

impl<T> Ord for Ascii<T>
where T: AsRef<str>,

§

impl<T> Ord for BigEndian<T>
where T: Ord,

§

impl<T> Ord for Constant<T>
where T: Ord,

§

impl<T> Ord for LittleEndian<T>
where T: Ord,

§

impl<T> Ord for Shared<'_, T>
where T: Pointable + ?Sized,

§

impl<T> Ord for Slice<T>
where T: Ord,

§

impl<T> Ord for TryWriteableInfallibleAsWriteable<T>
where T: Ord,

§

impl<T> Ord for Unalign<T>
where T: Unaligned + Ord,

§

impl<T> Ord for UniCase<T>
where T: AsRef<str>,

§

impl<T> Ord for WriteableAsTryWriteableInfallible<T>
where T: Ord,

§

impl<T> Ord for ZeroSlice<T>
where T: AsULE + Ord,

1.0.0 · Source§

impl<T, A> Ord for rama::crypto::dep::x509_parser::prelude::asn1_rs::nom::lib::std::boxed::Box<T, A>
where T: Ord + ?Sized, A: Allocator,

1.0.0 · Source§

impl<T, A> Ord for BTreeSet<T, A>
where T: Ord, A: Allocator + Clone,

1.0.0 · Source§

impl<T, A> Ord for LinkedList<T, A>
where T: Ord, A: Allocator,

1.0.0 · Source§

impl<T, A> Ord for VecDeque<T, A>
where T: Ord, A: Allocator,

1.0.0 · Source§

impl<T, A> Ord for rama::crypto::dep::x509_parser::prelude::asn1_rs::nom::lib::std::vec::Vec<T, A>
where T: Ord, A: Allocator,

Implements ordering of vectors, lexicographically.

1.0.0 · Source§

impl<T, A> Ord for Rc<T, A>
where T: Ord + ?Sized, A: Allocator,

Source§

impl<T, A> Ord for UniqueRc<T, A>
where T: Ord + ?Sized, A: Allocator,

1.0.0 · Source§

impl<T, A> Ord for Arc<T, A>
where T: Ord + ?Sized, A: Allocator,

Source§

impl<T, A> Ord for UniqueArc<T, A>
where T: Ord + ?Sized, A: Allocator,

§

impl<T, A> Ord for Box<T, A>
where T: Ord + ?Sized, A: Allocator,

§

impl<T, A> Ord for Vec<T, A>
where T: Ord, A: Allocator,

Implements ordering of vectors, lexicographically.

§

impl<T, B> Ord for Ref<B, T>
where B: ByteSlice, T: FromBytes + Ord + KnownLayout + Immutable + ?Sized,

1.0.0 · Source§

impl<T, E> Ord for Result<T, E>
where T: Ord, E: Ord,

§

impl<T, F> Ord for VarZeroSlice<T, F>
where T: VarULE + Ord + ?Sized, F: VarZeroVecFormat,

§

impl<T, N> Ord for GenericArray<T, N>
where T: Ord, N: ArrayLength<T>,

1.0.0 · Source§

impl<T, const N: usize> Ord for [T; N]
where T: Ord,

Implements comparison of arrays lexicographically.

Source§

impl<T, const N: usize> Ord for Simd<T, N>

Lexicographic order. For the SIMD elementwise minimum and maximum, use simd_min and simd_max instead.

§

impl<T, const N: usize> Ord for TagNonNull<T, N>

§

impl<T, const N: usize> Ord for TagPtr<T, N>

§

impl<TZ> Ord for ZipDateTime<TZ>
where TZ: Ord,

Source§

impl<Tz> Ord for chrono::date::Date<Tz>
where Tz: TimeZone,

Source§

impl<Tz> Ord for DateTime<Tz>
where Tz: TimeZone,

Source§

impl<U> Ord for NInt<U>
where U: Ord + Unsigned + NonZero,

Source§

impl<U> Ord for PInt<U>
where U: Ord + Unsigned + NonZero,

§

impl<U> Ord for OptionVarULE<U>
where U: VarULE + Ord + ?Sized,

Source§

impl<U, B> Ord for UInt<U, B>
where U: Ord, B: Ord,

§

impl<U, const N: usize> Ord for NichedOption<U, N>
where U: Ord,

Source§

impl<V, A> Ord for TArr<V, A>
where V: Ord, A: Ord,

Source§

impl<Y, R> Ord for CoroutineState<Y, R>
where Y: Ord, R: Ord,

§

impl<const MIN: i8, const MAX: i8> Ord for OptionRangedI8<MIN, MAX>

§

impl<const MIN: i8, const MAX: i8> Ord for RangedI8<MIN, MAX>

§

impl<const MIN: i16, const MAX: i16> Ord for OptionRangedI16<MIN, MAX>

§

impl<const MIN: i16, const MAX: i16> Ord for RangedI16<MIN, MAX>

§

impl<const MIN: i32, const MAX: i32> Ord for OptionRangedI32<MIN, MAX>

§

impl<const MIN: i32, const MAX: i32> Ord for RangedI32<MIN, MAX>

§

impl<const MIN: i64, const MAX: i64> Ord for OptionRangedI64<MIN, MAX>

§

impl<const MIN: i64, const MAX: i64> Ord for RangedI64<MIN, MAX>

§

impl<const MIN: i128, const MAX: i128> Ord for OptionRangedI128<MIN, MAX>

§

impl<const MIN: i128, const MAX: i128> Ord for RangedI128<MIN, MAX>

§

impl<const MIN: isize, const MAX: isize> Ord for OptionRangedIsize<MIN, MAX>

§

impl<const MIN: isize, const MAX: isize> Ord for RangedIsize<MIN, MAX>

§

impl<const MIN: u8, const MAX: u8> Ord for OptionRangedU8<MIN, MAX>

§

impl<const MIN: u8, const MAX: u8> Ord for RangedU8<MIN, MAX>

§

impl<const MIN: u16, const MAX: u16> Ord for OptionRangedU16<MIN, MAX>

§

impl<const MIN: u16, const MAX: u16> Ord for RangedU16<MIN, MAX>

§

impl<const MIN: u32, const MAX: u32> Ord for OptionRangedU32<MIN, MAX>

§

impl<const MIN: u32, const MAX: u32> Ord for RangedU32<MIN, MAX>

§

impl<const MIN: u64, const MAX: u64> Ord for OptionRangedU64<MIN, MAX>

§

impl<const MIN: u64, const MAX: u64> Ord for RangedU64<MIN, MAX>

§

impl<const MIN: u128, const MAX: u128> Ord for OptionRangedU128<MIN, MAX>

§

impl<const MIN: u128, const MAX: u128> Ord for RangedU128<MIN, MAX>

§

impl<const MIN: usize, const MAX: usize> Ord for OptionRangedUsize<MIN, MAX>

§

impl<const MIN: usize, const MAX: usize> Ord for RangedUsize<MIN, MAX>

§

impl<const N: usize> Ord for RawBytesULE<N>

§

impl<const N: usize> Ord for TinyAsciiStr<N>

§

impl<const N: usize> Ord for UnvalidatedTinyAsciiStr<N>

§

impl<const SIZE: usize> Ord for WriteBuffer<SIZE>