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

#[lang = "partial_ord"]
pub trait PartialOrd<Rhs = Self>: PartialEq<Rhs> where
    Rhs: ?Sized
{
#[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<NonZeroU8> for NonZeroU8
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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 PartialOrd<isize> for isize
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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<T> PartialOrd<Option<T>> for Option<T> where
    T: PartialOrd<T>, 
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impl<T> PartialOrd<[T; 7]> for [T; 7] where
    T: PartialOrd<T>, 
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impl<T> PartialOrd<[T; 29]> for [T; 29] where
    T: PartialOrd<T>, 
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impl PartialOrd<char> for char
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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, 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<T> PartialOrd<*const T> for *const T where
    T: ?Sized
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impl<T> PartialOrd<[T; 5]> for [T; 5] where
    T: PartialOrd<T>, 
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impl<A, B> PartialOrd<(A, B)> for (A, B) where
    A: PartialEq<A> + PartialOrd<A>,
    B: PartialEq<B> + PartialOrd<B> + ?Sized
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impl PartialOrd<NonZeroU64> for NonZeroU64
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impl<T> PartialOrd<[T; 15]> for [T; 15] where
    T: PartialOrd<T>, 
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impl<T> PartialOrd<[T; 28]> for [T; 28] where
    T: PartialOrd<T>, 
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impl<A, B, C, D, E> PartialOrd<(A, B, C, D, E)> for (A, B, C, D, E) where
    A: PartialEq<A> + PartialOrd<A>,
    B: PartialEq<B> + PartialOrd<B>,
    C: PartialEq<C> + PartialOrd<C>,
    D: PartialEq<D> + PartialOrd<D>,
    E: PartialEq<E> + PartialOrd<E> + ?Sized
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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<T> PartialOrd<[T; 2]> for [T; 2] where
    T: PartialOrd<T>, 
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impl<T> PartialOrd<[T; 14]> for [T; 14] where
    T: PartialOrd<T>, 
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impl<Ret> PartialOrd<fn() -> Ret> for fn() -> 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<A, B, C, D, E, F, G, H, I, J, 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
    A: PartialEq<A> + PartialOrd<A>,
    B: PartialEq<B> + PartialOrd<B>,
    C: PartialEq<C> + PartialOrd<C>,
    D: PartialEq<D> + PartialOrd<D>,
    E: PartialEq<E> + PartialOrd<E>,
    F: PartialEq<F> + PartialOrd<F>,
    G: PartialEq<G> + PartialOrd<G>,
    H: PartialEq<H> + PartialOrd<H>,
    I: PartialEq<I> + PartialOrd<I>,
    J: PartialEq<J> + PartialOrd<J>,
    K: PartialEq<K> + PartialOrd<K> + ?Sized
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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> PartialOrd<unsafe extern "C" fn(A, ...) -> Ret> for unsafe extern "C" fn(A, ...) -> Ret
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impl<T> PartialOrd<PhantomData<T>> for PhantomData<T> where
    T: ?Sized
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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, 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, 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<A, B, C, D, E, F, G, H, I, J> PartialOrd<(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> + PartialOrd<A>,
    B: PartialEq<B> + PartialOrd<B>,
    C: PartialEq<C> + PartialOrd<C>,
    D: PartialEq<D> + PartialOrd<D>,
    E: PartialEq<E> + PartialOrd<E>,
    F: PartialEq<F> + PartialOrd<F>,
    G: PartialEq<G> + PartialOrd<G>,
    H: PartialEq<H> + PartialOrd<H>,
    I: PartialEq<I> + PartialOrd<I>,
    J: PartialEq<J> + PartialOrd<J> + ?Sized
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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, 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 PartialOrd<!> for !
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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, 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<T> PartialOrd<[T; 27]> for [T; 27] where
    T: PartialOrd<T>, 
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impl<T> PartialOrd<[T; 31]> for [T; 31] where
    T: PartialOrd<T>, 
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impl<Ret> PartialOrd<extern "C" fn() -> Ret> for extern "C" fn() -> Ret
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impl<T> PartialOrd<[T; 24]> for [T; 24] where
    T: PartialOrd<T>, 
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impl<A, B, C, D> PartialOrd<(A, B, C, D)> for (A, B, C, D) where
    A: PartialEq<A> + PartialOrd<A>,
    B: PartialEq<B> + PartialOrd<B>,
    C: PartialEq<C> + PartialOrd<C>,
    D: PartialEq<D> + PartialOrd<D> + ?Sized
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impl<'a, 'b, A, B> PartialOrd<&'b B> for &'a A where
    A: PartialOrd<B> + ?Sized,
    B: ?Sized
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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<T> PartialOrd<[T; 25]> for [T; 25] where
    T: PartialOrd<T>, 
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impl PartialOrd<i32> for i32
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impl<T> PartialOrd<[T; 3]> for [T; 3] where
    T: PartialOrd<T>, 
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impl<T> PartialOrd<[T; 21]> for [T; 21] where
    T: PartialOrd<T>, 
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impl<A, B, C, D, E, F, G, H, I, J, K, 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
    A: PartialEq<A> + PartialOrd<A>,
    B: PartialEq<B> + PartialOrd<B>,
    C: PartialEq<C> + PartialOrd<C>,
    D: PartialEq<D> + PartialOrd<D>,
    E: PartialEq<E> + PartialOrd<E>,
    F: PartialEq<F> + PartialOrd<F>,
    G: PartialEq<G> + PartialOrd<G>,
    H: PartialEq<H> + PartialOrd<H>,
    I: PartialEq<I> + PartialOrd<I>,
    J: PartialEq<J> + PartialOrd<J>,
    K: PartialEq<K> + PartialOrd<K>,
    L: PartialEq<L> + PartialOrd<L> + ?Sized
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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<T> PartialOrd<[T; 0]> for [T; 0] where
    T: PartialOrd<T>, 
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impl<T> PartialOrd<NonNull<T>> for NonNull<T> where
    T: ?Sized
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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<T> PartialOrd<[T]> for [T] where
    T: PartialOrd<T>, 
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Implements comparison of vectors lexicographically.

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, 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 PartialOrd<bool> for bool
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impl PartialOrd<i8> for i8
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impl<'a, 'b, A, B> PartialOrd<&'b mut B> for &'a mut A where
    A: PartialOrd<B> + ?Sized,
    B: ?Sized
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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> 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> PartialOrd<unsafe extern "C" fn(A, B, ...) -> Ret> for unsafe extern "C" fn(A, B, ...) -> 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> PartialOrd<fn(A) -> Ret> for fn(A) -> 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<T> PartialOrd<[T; 1]> for [T; 1] where
    T: PartialOrd<T>, 
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impl PartialOrd<u128> for u128
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impl<T> PartialOrd<[T; 8]> for [T; 8] where
    T: PartialOrd<T>, 
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impl<T> PartialOrd<Wrapping<T>> for Wrapping<T> where
    T: PartialOrd<T>, 
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impl<A> PartialOrd<(A,)> for (A,) where
    A: PartialEq<A> + PartialOrd<A> + ?Sized
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impl PartialOrd<NonZeroU128> for NonZeroU128
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impl<T> PartialOrd<[T; 4]> for [T; 4] where
    T: PartialOrd<T>, 
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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, 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 PartialOrd<u64> for u64
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impl PartialOrd<u16> for u16
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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 PartialOrd<UnicodeVersion> for UnicodeVersion
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impl PartialOrd<f32> for f32
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impl<A, B, C> PartialOrd<(A, B, C)> for (A, B, C) where
    A: PartialEq<A> + PartialOrd<A>,
    B: PartialEq<B> + PartialOrd<B>,
    C: PartialEq<C> + PartialOrd<C> + ?Sized
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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 PartialOrd<u8> for u8
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impl<T> PartialOrd<[T; 18]> for [T; 18] where
    T: PartialOrd<T>, 
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impl<T> PartialOrd<*mut T> for *mut T where
    T: ?Sized
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impl PartialOrd<()> for ()
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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 PartialOrd<Ordering> for Ordering
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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, 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<T> PartialOrd<[T; 6]> for [T; 6] where
    T: PartialOrd<T>, 
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impl<A, B, C, D, E, F> PartialOrd<(A, B, C, D, E, F)> for (A, B, C, D, E, F) where
    A: PartialEq<A> + PartialOrd<A>,
    B: PartialEq<B> + PartialOrd<B>,
    C: PartialEq<C> + PartialOrd<C>,
    D: PartialEq<D> + PartialOrd<D>,
    E: PartialEq<E> + PartialOrd<E>,
    F: PartialEq<F> + PartialOrd<F> + ?Sized
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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 PartialOrd<NonZeroU16> for NonZeroU16
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impl<T> PartialOrd<Reverse<T>> for Reverse<T> where
    T: PartialOrd<T>, 
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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<T> PartialOrd<[T; 11]> for [T; 11] where
    T: PartialOrd<T>, 
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impl<T> PartialOrd<[T; 12]> for [T; 12] where
    T: PartialOrd<T>, 
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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> PartialOrd<unsafe fn() -> Ret> for unsafe fn() -> Ret
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impl<T> PartialOrd<[T; 22]> for [T; 22] where
    T: PartialOrd<T>, 
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impl<T> PartialOrd<ManuallyDrop<T>> for ManuallyDrop<T> where
    T: PartialOrd<T> + ?Sized
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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, 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 PartialOrd<Duration> for Duration
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impl<Ret> PartialOrd<unsafe extern "C" fn() -> Ret> for unsafe extern "C" fn() -> Ret
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impl PartialOrd<u32> for u32
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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, 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, 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> 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, 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<T> PartialOrd<[T; 23]> for [T; 23] where
    T: PartialOrd<T>, 
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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<A, B, C, D, E, F, G, H> PartialOrd<(A, B, C, D, E, F, G, H)> for (A, B, C, D, E, F, G, H) where
    A: PartialEq<A> + PartialOrd<A>,
    B: PartialEq<B> + PartialOrd<B>,
    C: PartialEq<C> + PartialOrd<C>,
    D: PartialEq<D> + PartialOrd<D>,
    E: PartialEq<E> + PartialOrd<E>,
    F: PartialEq<F> + PartialOrd<F>,
    G: PartialEq<G> + PartialOrd<G>,
    H: PartialEq<H> + PartialOrd<H> + ?Sized
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impl PartialOrd<NoneError> for NoneError
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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<T> PartialOrd<[T; 32]> for [T; 32] where
    T: PartialOrd<T>, 
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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
[src]

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

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

impl PartialOrd<i64> for i64
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impl<Ret, A, B> PartialOrd<extern "C" fn(A, B, ...) -> Ret> for extern "C" fn(A, B, ...) -> Ret
[src]

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

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
[src]

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

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

impl<T> PartialOrd<[T; 20]> for [T; 20] where
    T: PartialOrd<T>, 
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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
[src]

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
[src]

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

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
[src]

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
[src]

impl PartialOrd<usize> for usize
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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
[src]

impl<T> PartialOrd<[T; 16]> for [T; 16] where
    T: PartialOrd<T>, 
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impl<T> PartialOrd<[T; 13]> for [T; 13] where
    T: PartialOrd<T>, 
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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
[src]

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

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
[src]

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

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

impl<T> PartialOrd<[T; 9]> for [T; 9] where
    T: PartialOrd<T>, 
[src]

impl<T> PartialOrd<RefCell<T>> for RefCell<T> where
    T: PartialOrd<T> + ?Sized
[src]

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> PartialOrd<[T; 19]> for [T; 19] where
    T: PartialOrd<T>, 
[src]

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

impl<T, E> PartialOrd<Result<T, E>> for Result<T, E> where
    E: PartialOrd<E>,
    T: PartialOrd<T>, 
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impl<Y, R> PartialOrd<GeneratorState<Y, R>> for GeneratorState<Y, R> where
    R: PartialOrd<R>,
    Y: PartialOrd<Y>, 
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impl<T> PartialOrd<[T; 26]> for [T; 26] where
    T: PartialOrd<T>, 
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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
[src]

impl PartialOrd<i16> for i16
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impl PartialOrd<Error> for Error
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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
[src]

impl PartialOrd<NonZeroU32> for NonZeroU32
[src]

impl<T> PartialOrd<[T; 17]> for [T; 17] where
    T: PartialOrd<T>, 
[src]

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
[src]

impl<T> PartialOrd<[T; 30]> for [T; 30] where
    T: PartialOrd<T>, 
[src]

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
[src]

impl<T> PartialOrd<[T; 10]> for [T; 10] where
    T: PartialOrd<T>, 
[src]

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
[src]

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

impl PartialOrd<i128> for i128
[src]

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

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
[src]

impl PartialOrd<TypeId> for TypeId
[src]

impl PartialOrd<NonZeroUsize> for NonZeroUsize
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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
[src]

impl PartialOrd<f64> for f64
[src]

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
[src]

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
[src]

impl PartialOrd<Pinned> for Pinned
[src]

impl<T> PartialOrd<BTreeSet<T>> for BTreeSet<T> where
    T: PartialOrd<T>, 
[src]

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

impl<T> PartialOrd<Vec<T>> for Vec<T> where
    T: PartialOrd<T>, 
[src]

Implements comparison of vectors, lexicographically.

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

impl<K, V> PartialOrd<BTreeMap<K, V>> for BTreeMap<K, V> where
    K: PartialOrd<K>,
    V: PartialOrd<V>, 
[src]

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

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

Partial comparison for two Rcs.

The two are compared by calling partial_cmp() on their inner values.

Examples

use std::rc::Rc;
use std::cmp::Ordering;

let five = Rc::new(5);

assert_eq!(Some(Ordering::Less), five.partial_cmp(&Rc::new(6)));Run

Less-than comparison for two Rcs.

The two are compared by calling < on their inner values.

Examples

use std::rc::Rc;

let five = Rc::new(5);

assert!(five < Rc::new(6));Run

'Less than or equal to' comparison for two Rcs.

The two are compared by calling <= on their inner values.

Examples

use std::rc::Rc;

let five = Rc::new(5);

assert!(five <= Rc::new(5));Run

Greater-than comparison for two Rcs.

The two are compared by calling > on their inner values.

Examples

use std::rc::Rc;

let five = Rc::new(5);

assert!(five > Rc::new(4));Run

'Greater than or equal to' comparison for two Rcs.

The two are compared by calling >= on their inner values.

Examples

use std::rc::Rc;

let five = Rc::new(5);

assert!(five >= Rc::new(5));Run

impl<T> PartialOrd<Arc<T>> for Arc<T> where
    T: PartialOrd<T> + ?Sized
[src]

Partial comparison for two Arcs.

The two are compared by calling partial_cmp() on their inner values.

Examples

use std::sync::Arc;
use std::cmp::Ordering;

let five = Arc::new(5);

assert_eq!(Some(Ordering::Less), five.partial_cmp(&Arc::new(6)));Run

Less-than comparison for two Arcs.

The two are compared by calling < on their inner values.

Examples

use std::sync::Arc;

let five = Arc::new(5);

assert!(five < Arc::new(6));Run

'Less than or equal to' comparison for two Arcs.

The two are compared by calling <= on their inner values.

Examples

use std::sync::Arc;

let five = Arc::new(5);

assert!(five <= Arc::new(5));Run

Greater-than comparison for two Arcs.

The two are compared by calling > on their inner values.

Examples

use std::sync::Arc;

let five = Arc::new(5);

assert!(five > Arc::new(4));Run

'Greater than or equal to' comparison for two Arcs.

The two are compared by calling >= on their inner values.

Examples

use std::sync::Arc;

let five = Arc::new(5);

assert!(five >= Arc::new(5));Run

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

impl PartialOrd<String> for String
[src]

impl PartialOrd for CString
[src]

impl PartialOrd for CStr
[src]

impl PartialOrd for OsString
[src]

impl PartialOrd<str> for OsString
[src]

impl PartialOrd for OsStr
[src]

impl PartialOrd<str> for OsStr
[src]

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

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

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

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

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

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

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

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

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

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

impl PartialOrd for ErrorKind
[src]

impl PartialOrd for IpAddr
[src]

impl PartialOrd for Ipv4Addr
[src]

impl PartialOrd<Ipv4Addr> for IpAddr
[src]

impl PartialOrd<IpAddr> for Ipv4Addr
[src]

impl PartialOrd for Ipv6Addr
[src]

impl PartialOrd<Ipv6Addr> for IpAddr
[src]

impl PartialOrd<IpAddr> for Ipv6Addr
[src]

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

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

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

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

impl PartialOrd for PathBuf
[src]

impl PartialOrd for Path
[src]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

impl PartialOrd for Instant
[src]

impl PartialOrd for SystemTime
[src]