1.0.0[][src]Trait core::cmp::PartialOrd

#[lang = "partial_ord"]
pub trait PartialOrd<Rhs: ?Sized = Self>: PartialEq<Rhs> {
#[must_use]
fn partial_cmp(&self, other: &Rhs) -> Option<Ordering>;
#[must_use]
fn lt(&self, other: &Rhs) -> bool { ... }
#[must_use]
fn le(&self, other: &Rhs) -> bool { ... }
#[must_use]
fn gt(&self, other: &Rhs) -> bool { ... }
#[must_use]
fn ge(&self, other: &Rhs) -> bool { ... } }

Trait for values that can be compared for a sort-order.

The comparison must satisfy, for all a, b and c:

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

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 by their top-to-bottom declaration order.

How can I implement PartialOrd?

PartialOrd only requires implementation of the partial_cmp method, with the others generated from default implementations.

However it remains possible to implement the others separately for types which do not have a total order. For example, for floating point numbers, NaN < 0 == false and NaN >= 0 == false (cf. IEEE 754-2008 section 5.11).

PartialOrd requires your type to be PartialEq.

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.

If your type is Ord, you can implement partial_cmp() by using cmp():

use std::cmp::Ordering;

#[derive(Eq)]
struct Person {
    id: u32,
    name: String,
    height: u32,
}

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

impl Ord for Person {
    fn cmp(&self, other: &Person) -> Ordering {
        self.height.cmp(&other.height)
    }
}

impl PartialEq for Person {
    fn eq(&self, other: &Person) -> bool {
        self.height == other.height
    }
}Run

You may also find it useful to use partial_cmp() on your type's fields. Here is an example of Person types who have a floating-point height field that is the only field to be used for sorting:

use std::cmp::Ordering;

struct Person {
    id: u32,
    name: String,
    height: f64,
}

impl PartialOrd for Person {
    fn partial_cmp(&self, other: &Person) -> Option<Ordering> {
        self.height.partial_cmp(&other.height)
    }
}

impl PartialEq for Person {
    fn eq(&self, other: &Person) -> bool {
        self.height == other.height
    }
}Run

Examples

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

assert_eq!(x < y, true);
assert_eq!(x.lt(&y), true);Run

Required Methods

This method returns an ordering between self and other values if one exists.

Examples

use std::cmp::Ordering;

let result = 1.0.partial_cmp(&2.0);
assert_eq!(result, Some(Ordering::Less));

let result = 1.0.partial_cmp(&1.0);
assert_eq!(result, Some(Ordering::Equal));

let result = 2.0.partial_cmp(&1.0);
assert_eq!(result, Some(Ordering::Greater));Run

When comparison is impossible:

let result = std::f64::NAN.partial_cmp(&1.0);
assert_eq!(result, None);Run

Provided Methods

This method tests less than (for self and other) and is used by the < operator.

Examples

let result = 1.0 < 2.0;
assert_eq!(result, true);

let result = 2.0 < 1.0;
assert_eq!(result, false);Run

This method tests less than or equal to (for self and other) and is used by the <= operator.

Examples

let result = 1.0 <= 2.0;
assert_eq!(result, true);

let result = 2.0 <= 2.0;
assert_eq!(result, true);Run

This method tests greater than (for self and other) and is used by the > operator.

Examples

let result = 1.0 > 2.0;
assert_eq!(result, false);

let result = 2.0 > 2.0;
assert_eq!(result, false);Run

This method tests greater than or equal to (for self and other) and is used by the >= operator.

Examples

let result = 2.0 >= 1.0;
assert_eq!(result, true);

let result = 2.0 >= 2.0;
assert_eq!(result, true);Run

Implementors

impl PartialOrd<!> for !
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impl PartialOrd<()> for ()
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impl PartialOrd<Ordering> for Ordering
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impl PartialOrd<TypeId> for TypeId
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impl PartialOrd<CpuidResult> for CpuidResult
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impl PartialOrd<UnicodeVersion> for UnicodeVersion
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impl PartialOrd<Error> for Error
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impl PartialOrd<Pinned> for Pinned
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impl PartialOrd<NonZeroU128> for NonZeroU128
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impl PartialOrd<NonZeroU16> for NonZeroU16
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impl PartialOrd<NonZeroU32> for NonZeroU32
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impl PartialOrd<NonZeroU64> for NonZeroU64
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impl PartialOrd<NonZeroU8> for NonZeroU8
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impl PartialOrd<NonZeroUsize> for NonZeroUsize
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impl PartialOrd<NoneError> for NoneError
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impl PartialOrd<Duration> for Duration
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impl PartialOrd<bool> for bool
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impl PartialOrd<char> for char
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impl PartialOrd<f32> for f32
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impl PartialOrd<f64> for f64
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impl PartialOrd<i128> for i128
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impl PartialOrd<i16> for i16
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impl PartialOrd<i32> for i32
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impl PartialOrd<i64> for i64
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impl PartialOrd<i8> for i8
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impl PartialOrd<isize> for isize
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impl PartialOrd<str> for str
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Implements comparison operations on strings.

Strings are compared lexicographically by their byte values. This compares 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. Comparing strings according to culturally-accepted standards requires locale-specific data that is outside the scope of the str type.

impl PartialOrd<u128> for u128
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impl PartialOrd<u16> for u16
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impl PartialOrd<u32> for u32
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impl PartialOrd<u64> for u64
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impl PartialOrd<u8> for u8
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impl PartialOrd<usize> for usize
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impl<'a, 'b, A: ?Sized, B: ?Sized> PartialOrd<&'b B> for &'a A where
    A: PartialOrd<B>, 
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impl<'a, 'b, A: ?Sized, B: ?Sized> PartialOrd<&'b mut B> for &'a mut A where
    A: PartialOrd<B>, 
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impl<A> PartialOrd<(A,)> for (A,) where
    A: PartialOrd + PartialEq + ?Sized
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impl<A: PartialOrd + PartialEq, B> PartialOrd<(A, B)> for (A, B) where
    B: PartialOrd + PartialEq + ?Sized
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impl<A: PartialOrd + PartialEq, B: PartialOrd + PartialEq, C> PartialOrd<(A, B, C)> for (A, B, C) where
    C: PartialOrd + PartialEq + ?Sized
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impl<A: PartialOrd + PartialEq, B: PartialOrd + PartialEq, C: PartialOrd + PartialEq, D> PartialOrd<(A, B, C, D)> for (A, B, C, D) where
    D: PartialOrd + PartialEq + ?Sized
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impl<A: PartialOrd + PartialEq, B: PartialOrd + PartialEq, C: PartialOrd + PartialEq, D: PartialOrd + PartialEq, E> PartialOrd<(A, B, C, D, E)> for (A, B, C, D, E) where
    E: PartialOrd + PartialEq + ?Sized
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impl<A: PartialOrd + PartialEq, B: PartialOrd + PartialEq, C: PartialOrd + PartialEq, D: PartialOrd + PartialEq, E: PartialOrd + PartialEq, F> PartialOrd<(A, B, C, D, E, F)> for (A, B, C, D, E, F) where
    F: PartialOrd + PartialEq + ?Sized
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impl<A: PartialOrd + PartialEq, B: PartialOrd + PartialEq, C: PartialOrd + PartialEq, D: PartialOrd + PartialEq, E: PartialOrd + PartialEq, F: PartialOrd + PartialEq, G> PartialOrd<(A, B, C, D, E, F, G)> for (A, B, C, D, E, F, G) where
    G: PartialOrd + PartialEq + ?Sized
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impl<A: PartialOrd + PartialEq, B: PartialOrd + PartialEq, C: PartialOrd + PartialEq, D: PartialOrd + PartialEq, E: PartialOrd + PartialEq, F: PartialOrd + PartialEq, G: PartialOrd + PartialEq, H> PartialOrd<(A, B, C, D, E, F, G, H)> for (A, B, C, D, E, F, G, H) where
    H: PartialOrd + PartialEq + ?Sized
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impl<A: PartialOrd + PartialEq, B: PartialOrd + PartialEq, C: PartialOrd + PartialEq, D: PartialOrd + PartialEq, E: PartialOrd + PartialEq, F: PartialOrd + PartialEq, G: PartialOrd + PartialEq, H: PartialOrd + PartialEq, I> PartialOrd<(A, B, C, D, E, F, G, H, I)> for (A, B, C, D, E, F, G, H, I) where
    I: PartialOrd + PartialEq + ?Sized
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impl<A: PartialOrd + PartialEq, B: PartialOrd + PartialEq, C: PartialOrd + PartialEq, D: PartialOrd + PartialEq, E: PartialOrd + PartialEq, F: PartialOrd + PartialEq, G: PartialOrd + PartialEq, H: PartialOrd + PartialEq, I: PartialOrd + PartialEq, J> PartialOrd<(A, B, C, D, E, F, G, H, I, J)> for (A, B, C, D, E, F, G, H, I, J) where
    J: PartialOrd + PartialEq + ?Sized
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impl<A: PartialOrd + PartialEq, B: PartialOrd + PartialEq, C: PartialOrd + PartialEq, D: PartialOrd + PartialEq, E: PartialOrd + PartialEq, F: PartialOrd + PartialEq, G: PartialOrd + PartialEq, H: PartialOrd + PartialEq, I: PartialOrd + PartialEq, J: PartialOrd + PartialEq, K> PartialOrd<(A, B, C, D, E, F, G, H, I, J, K)> for (A, B, C, D, E, F, G, H, I, J, K) where
    K: PartialOrd + PartialEq + ?Sized
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impl<A: PartialOrd + PartialEq, B: PartialOrd + PartialEq, C: PartialOrd + PartialEq, D: PartialOrd + PartialEq, E: PartialOrd + PartialEq, F: PartialOrd + PartialEq, G: PartialOrd + PartialEq, H: PartialOrd + PartialEq, I: PartialOrd + PartialEq, J: PartialOrd + PartialEq, K: PartialOrd + PartialEq, L> PartialOrd<(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
    L: PartialOrd + PartialEq + ?Sized
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impl<P: PartialOrd> PartialOrd<Pin<P>> for Pin<P>
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impl<Ret> PartialOrd<extern "C" fn() -> Ret> for extern "C" fn() -> Ret
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impl<Ret> PartialOrd<fn() -> Ret> for fn() -> Ret
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impl<Ret> PartialOrd<unsafe extern "C" fn() -> Ret> for unsafe extern "C" fn() -> Ret
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impl<Ret> PartialOrd<unsafe fn() -> Ret> for unsafe fn() -> Ret
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impl<Ret, A> PartialOrd<extern "C" fn(A) -> Ret> for extern "C" fn(_: A) -> Ret
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impl<Ret, A> PartialOrd<extern "C" fn(A, ...) -> Ret> for extern "C" fn(_: A, ...) -> Ret
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impl<Ret, A> PartialOrd<fn(A) -> Ret> for fn(_: A) -> Ret
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impl<Ret, A> PartialOrd<unsafe extern "C" fn(A) -> Ret> for unsafe extern "C" fn(_: A) -> Ret
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impl<Ret, A> PartialOrd<unsafe extern "C" fn(A, ...) -> Ret> for unsafe extern "C" fn(_: A, ...) -> Ret
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impl<Ret, A> PartialOrd<unsafe fn(A) -> Ret> for unsafe fn(_: A) -> Ret
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impl<Ret, A, B> PartialOrd<extern "C" fn(A, B) -> Ret> for extern "C" fn(_: A, _: B) -> Ret
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impl<Ret, A, B> PartialOrd<extern "C" fn(A, B, ...) -> Ret> for extern "C" fn(_: A, _: B, ...) -> Ret
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impl<Ret, A, B> PartialOrd<fn(A, B) -> Ret> for fn(_: A, _: B) -> Ret
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impl<Ret, A, B> PartialOrd<unsafe extern "C" fn(A, B) -> Ret> for unsafe extern "C" fn(_: A, _: B) -> Ret
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impl<Ret, A, B> PartialOrd<unsafe extern "C" fn(A, B, ...) -> Ret> for unsafe extern "C" fn(_: A, _: B, ...) -> Ret
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impl<Ret, A, B> PartialOrd<unsafe fn(A, B) -> Ret> for unsafe fn(_: A, _: B) -> Ret
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impl<Ret, A, B, C> PartialOrd<extern "C" fn(A, B, C) -> Ret> for extern "C" fn(_: A, _: B, _: C) -> Ret
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impl<Ret, A, B, C> PartialOrd<extern "C" fn(A, B, C, ...) -> Ret> for extern "C" fn(_: A, _: B, _: C, ...) -> Ret
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impl<Ret, A, B, C> PartialOrd<fn(A, B, C) -> Ret> for fn(_: A, _: B, _: C) -> Ret
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impl<Ret, A, B, C> PartialOrd<unsafe extern "C" fn(A, B, C) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C) -> Ret
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impl<Ret, A, B, C> PartialOrd<unsafe extern "C" fn(A, B, C, ...) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, ...) -> Ret
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impl<Ret, A, B, C> PartialOrd<unsafe fn(A, B, C) -> Ret> for unsafe fn(_: A, _: B, _: C) -> Ret
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impl<Ret, A, B, C, D> PartialOrd<extern "C" fn(A, B, C, D) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D) -> Ret
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impl<Ret, A, B, C, D> PartialOrd<extern "C" fn(A, B, C, D, ...) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, ...) -> Ret
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impl<Ret, A, B, C, D> PartialOrd<fn(A, B, C, D) -> Ret> for fn(_: A, _: B, _: C, _: D) -> Ret
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impl<Ret, A, B, C, D> PartialOrd<unsafe extern "C" fn(A, B, C, D) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D) -> Ret
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impl<Ret, A, B, C, D> PartialOrd<unsafe extern "C" fn(A, B, C, D, ...) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D, ...) -> Ret
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impl<Ret, A, B, C, D> PartialOrd<unsafe fn(A, B, C, D) -> Ret> for unsafe fn(_: A, _: B, _: C, _: D) -> Ret
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impl<Ret, A, B, C, D, E> PartialOrd<extern "C" fn(A, B, C, D, E) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, _: E) -> Ret
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impl<Ret, A, B, C, D, E> PartialOrd<extern "C" fn(A, B, C, D, E, ...) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, _: E, ...) -> Ret
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impl<Ret, A, B, C, D, E> PartialOrd<fn(A, B, C, D, E) -> Ret> for fn(_: A, _: B, _: C, _: D, _: E) -> Ret
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impl<Ret, A, B, C, D, E> PartialOrd<unsafe extern "C" fn(A, B, C, D, E) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D, _: E) -> Ret
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impl<Ret, A, B, C, D, E> PartialOrd<unsafe extern "C" fn(A, B, C, D, E, ...) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D, _: E, ...) -> Ret
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impl<Ret, A, B, C, D, E> PartialOrd<unsafe fn(A, B, C, D, E) -> Ret> for unsafe fn(_: A, _: B, _: C, _: D, _: E) -> Ret
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impl<Ret, A, B, C, D, E, F> PartialOrd<extern "C" fn(A, B, C, D, E, F) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F) -> Ret
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impl<Ret, A, B, C, D, E, F> PartialOrd<extern "C" fn(A, B, C, D, E, F, ...) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, ...) -> Ret
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impl<Ret, A, B, C, D, E, F> PartialOrd<fn(A, B, C, D, E, F) -> Ret> for fn(_: A, _: B, _: C, _: D, _: E, _: F) -> Ret
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impl<Ret, A, B, C, D, E, F> PartialOrd<unsafe extern "C" fn(A, B, C, D, E, F) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F) -> Ret
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impl<Ret, A, B, C, D, E, F> PartialOrd<unsafe extern "C" fn(A, B, C, D, E, F, ...) -> Ret> for unsafe extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, ...) -> Ret
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impl<Ret, A, B, C, D, E, F> PartialOrd<unsafe fn(A, B, C, D, E, F) -> Ret> for unsafe fn(_: A, _: B, _: C, _: D, _: E, _: F) -> Ret
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impl<Ret, A, B, C, D, E, F, G> PartialOrd<extern "C" fn(A, B, C, D, E, F, G) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G) -> Ret
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impl<Ret, A, B, C, D, E, F, G> PartialOrd<extern "C" fn(A, B, C, D, E, F, G, ...) -> Ret> for extern "C" fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, ...) -> Ret
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impl<Ret, A, B, C, D, E, F, G> PartialOrd<fn(A, B, C, D, E, F, G) -> Ret> for fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G) -> Ret
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impl<Ret, A, B, C, D, E, F, G> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G> PartialOrd<unsafe fn(A, B, C, D, E, F, G) -> Ret> for unsafe fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G) -> Ret
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impl<Ret, A, B, C, D, E, F, G, H> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H> PartialOrd<fn(A, B, C, D, E, F, G, H) -> Ret> for fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H) -> Ret
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impl<Ret, A, B, C, D, E, F, G, H> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H> PartialOrd<unsafe fn(A, B, C, D, E, F, G, H) -> Ret> for unsafe fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H) -> Ret
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impl<Ret, A, B, C, D, E, F, G, H, I> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H, I> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H, I> PartialOrd<fn(A, B, C, D, E, F, G, H, I) -> Ret> for fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H, _: I) -> Ret
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impl<Ret, A, B, C, D, E, F, G, H, I> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H, I> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H, I> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H, I, J> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H, I, J> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H, I, J> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H, I, J> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H, I, J> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H, I, J> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H, I, J, K> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H, I, J, K> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H, I, J, K> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H, I, J, K> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H, I, J, K> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H, I, J, K> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> PartialOrd<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
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impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> PartialOrd<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
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impl<T: PartialOrd + Copy> PartialOrd<Cell<T>> for Cell<T>
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impl<T: PartialOrd + ?Sized> PartialOrd<ManuallyDrop<T>> for ManuallyDrop<T>
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impl<T: PartialOrd> PartialOrd<Option<T>> for Option<T>
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impl<T: PartialOrd> PartialOrd<Poll<T>> for Poll<T>
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impl<T: PartialOrd> PartialOrd<Reverse<T>> for Reverse<T>
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impl<T: PartialOrd> PartialOrd<Wrapping<T>> for Wrapping<T>
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impl<T: PartialOrd> PartialOrd<[T; 0]> for [T; 0]
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impl<T: PartialOrd> PartialOrd<[T; 10]> for [T; 10]
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impl<T: PartialOrd> PartialOrd<[T; 11]> for [T; 11]
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impl<T: PartialOrd> PartialOrd<[T; 12]> for [T; 12]
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impl<T: PartialOrd> PartialOrd<[T; 13]> for [T; 13]
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impl<T: PartialOrd> PartialOrd<[T; 14]> for [T; 14]
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impl<T: PartialOrd> PartialOrd<[T; 15]> for [T; 15]
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impl<T: PartialOrd> PartialOrd<[T; 16]> for [T; 16]
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impl<T: PartialOrd> PartialOrd<[T; 17]> for [T; 17]
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impl<T: PartialOrd> PartialOrd<[T; 18]> for [T; 18]
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impl<T: PartialOrd> PartialOrd<[T; 19]> for [T; 19]
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impl<T: PartialOrd> PartialOrd<[T; 1]> for [T; 1]
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impl<T: PartialOrd> PartialOrd<[T; 20]> for [T; 20]
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impl<T: PartialOrd> PartialOrd<[T; 21]> for [T; 21]
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impl<T: PartialOrd> PartialOrd<[T; 22]> for [T; 22]
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impl<T: PartialOrd> PartialOrd<[T; 23]> for [T; 23]
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impl<T: PartialOrd> PartialOrd<[T; 24]> for [T; 24]
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impl<T: PartialOrd> PartialOrd<[T; 25]> for [T; 25]
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impl<T: PartialOrd> PartialOrd<[T; 26]> for [T; 26]
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impl<T: PartialOrd> PartialOrd<[T; 27]> for [T; 27]
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impl<T: PartialOrd> PartialOrd<[T; 28]> for [T; 28]
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impl<T: PartialOrd> PartialOrd<[T; 29]> for [T; 29]
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impl<T: PartialOrd> PartialOrd<[T; 2]> for [T; 2]
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impl<T: PartialOrd> PartialOrd<[T; 30]> for [T; 30]
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impl<T: PartialOrd> PartialOrd<[T; 31]> for [T; 31]
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impl<T: PartialOrd> PartialOrd<[T; 32]> for [T; 32]
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impl<T: PartialOrd> PartialOrd<[T; 3]> for [T; 3]
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impl<T: PartialOrd> PartialOrd<[T; 4]> for [T; 4]
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impl<T: PartialOrd> PartialOrd<[T; 5]> for [T; 5]
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impl<T: PartialOrd> PartialOrd<[T; 6]> for [T; 6]
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impl<T: PartialOrd> PartialOrd<[T; 7]> for [T; 7]
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impl<T: PartialOrd> PartialOrd<[T; 8]> for [T; 8]
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impl<T: PartialOrd> PartialOrd<[T; 9]> for [T; 9]
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impl<T: PartialOrd> PartialOrd<[T]> for [T]
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Implements comparison of vectors lexicographically.

impl<T: PartialOrd, E: PartialOrd> PartialOrd<Result<T, E>> for Result<T, E>
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impl<T: ?Sized + PartialOrd> PartialOrd<RefCell<T>> for RefCell<T>
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Panics

Panics if the value in either RefCell is currently borrowed.

Panics

Panics if the value in either RefCell is currently borrowed.

Panics

Panics if the value in either RefCell is currently borrowed.

Panics

Panics if the value in either RefCell is currently borrowed.

Panics

Panics if the value in either RefCell is currently borrowed.

impl<T: ?Sized> PartialOrd<*const T> for *const T
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impl<T: ?Sized> PartialOrd<*mut T> for *mut T
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impl<T: ?Sized> PartialOrd<PhantomData<T>> for PhantomData<T>
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impl<T: ?Sized> PartialOrd<NonNull<T>> for NonNull<T>
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impl<Y: PartialOrd, R: PartialOrd> PartialOrd<GeneratorState<Y, R>> for GeneratorState<Y, R>
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