Primitive Type tuple

A finite heterogeneous sequence, (T, U, ..).

Let’s cover each of those in turn:

Tuples are finite. In other words, a tuple has a length. Here’s a tuple of length 3:

("hello", 5, 'c');

‘Length’ is also sometimes called ‘arity’ here; each tuple of a different length is a different, distinct type.

Tuples are heterogeneous. This means that each element of the tuple can have a different type. In that tuple above, it has the type:

(&'static str, i32, char)

Tuples are a sequence. This means that they can be accessed by position; this is called ‘tuple indexing’, and it looks like this:

let tuple = ("hello", 5, 'c');

assert_eq!(tuple.0, "hello");
assert_eq!(tuple.1, 5);
assert_eq!(tuple.2, 'c');

The sequential nature of the tuple applies to its implementations of various traits. For example, in PartialOrd and Ord, the elements are compared sequentially until the first non-equal set is found.

For more about tuples, see the book.

Trait implementations

If every type inside a tuple implements one of the following traits, then a tuple itself also implements it.

• Clone
• Copy
• PartialEq
• Eq
• PartialOrd
• Ord
• Debug
• Default
• Hash

Due to a temporary restriction in Rust’s type system, these traits are only implemented on tuples of arity 12 or less. In the future, this may change.

Examples

Basic usage:

let tuple = ("hello", 5, 'c');

assert_eq!(tuple.0, "hello");

Tuples are often used as a return type when you want to return more than one value:

fn calculate_point() -> (i32, i32) {
    // Don't do a calculation, that's not the point of the example
    (4, 5)
}

let point = calculate_point();

assert_eq!(point.0, 4);
assert_eq!(point.1, 5);

// Combining this with patterns can be nicer.

let (x, y) = calculate_point();

assert_eq!(x, 4);
assert_eq!(y, 5);

Trait Implementations

impl<T0: Debug, T1: Debug, T2: Debug, T3: Debug, T4: Debug, T5: Debug, T6: Debug, T7: Debug, T8: Debug, T9: Debug, T10: Debug, T11: Debug> Debug for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11) where
    T11: ?Sized, 

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T1: Debug, T2: Debug, T3: Debug, T4: Debug, T5: Debug, T6: Debug, T7: Debug, T8: Debug, T9: Debug, T10: Debug, T11: Debug> Debug for (T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11) where
    T11: ?Sized, 

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T10: Debug, T11: Debug> Debug for (T10, T11) where
    T11: ?Sized, 

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T11: Debug> Debug for (T11,) where
    T11: ?Sized, 

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T2: Debug, T3: Debug, T4: Debug, T5: Debug, T6: Debug, T7: Debug, T8: Debug, T9: Debug, T10: Debug, T11: Debug> Debug for (T2, T3, T4, T5, T6, T7, T8, T9, T10, T11) where
    T11: ?Sized, 

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T3: Debug, T4: Debug, T5: Debug, T6: Debug, T7: Debug, T8: Debug, T9: Debug, T10: Debug, T11: Debug> Debug for (T3, T4, T5, T6, T7, T8, T9, T10, T11) where
    T11: ?Sized, 

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T4: Debug, T5: Debug, T6: Debug, T7: Debug, T8: Debug, T9: Debug, T10: Debug, T11: Debug> Debug for (T4, T5, T6, T7, T8, T9, T10, T11) where
    T11: ?Sized, 

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T5: Debug, T6: Debug, T7: Debug, T8: Debug, T9: Debug, T10: Debug, T11: Debug> Debug for (T5, T6, T7, T8, T9, T10, T11) where
    T11: ?Sized, 

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T6: Debug, T7: Debug, T8: Debug, T9: Debug, T10: Debug, T11: Debug> Debug for (T6, T7, T8, T9, T10, T11) where
    T11: ?Sized, 

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T7: Debug, T8: Debug, T9: Debug, T10: Debug, T11: Debug> Debug for (T7, T8, T9, T10, T11) where
    T11: ?Sized, 

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T8: Debug, T9: Debug, T10: Debug, T11: Debug> Debug for (T8, T9, T10, T11) where
    T11: ?Sized, 

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T9: Debug, T10: Debug, T11: Debug> Debug for (T9, T10, T11) where
    T11: ?Sized, 

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<L: Default> Default for (L,)

fn default() -> (L,)

Returns the “default value” for a type.

impl<K: Default, L: Default> Default for (K, L)

fn default() -> (K, L)

Returns the “default value” for a type.

impl<B: Default, C: Default, D: Default, E: Default, F: Default, G: Default, H: Default, I: Default, J: Default, K: Default, L: Default> Default for (B, C, D, E, F, G, H, I, J, K, L)

fn default() -> (B, C, D, E, F, G, H, I, J, K, L)

Returns the “default value” for a type.

impl<A: Default, B: Default, C: Default, D: Default, E: Default, F: Default, G: Default, H: Default, I: Default, J: Default, K: Default, L: Default> Default for (A, B, C, D, E, F, G, H, I, J, K, L)

fn default() -> (A, B, C, D, E, F, G, H, I, J, K, L)

Returns the “default value” for a type.

impl<J: Default, K: Default, L: Default> Default for (J, K, L)

fn default() -> (J, K, L)

Returns the “default value” for a type.

impl<I: Default, J: Default, K: Default, L: Default> Default for (I, J, K, L)

fn default() -> (I, J, K, L)

Returns the “default value” for a type.

impl<H: Default, I: Default, J: Default, K: Default, L: Default> Default for (H, I, J, K, L)

fn default() -> (H, I, J, K, L)

Returns the “default value” for a type.

impl<G: Default, H: Default, I: Default, J: Default, K: Default, L: Default> Default for (G, H, I, J, K, L)

fn default() -> (G, H, I, J, K, L)

Returns the “default value” for a type.

impl<F: Default, G: Default, H: Default, I: Default, J: Default, K: Default, L: Default> Default for (F, G, H, I, J, K, L)

fn default() -> (F, G, H, I, J, K, L)

Returns the “default value” for a type.

impl<E: Default, F: Default, G: Default, H: Default, I: Default, J: Default, K: Default, L: Default> Default for (E, F, G, H, I, J, K, L)

fn default() -> (E, F, G, H, I, J, K, L)

Returns the “default value” for a type.

impl<D: Default, E: Default, F: Default, G: Default, H: Default, I: Default, J: Default, K: Default, L: Default> Default for (D, E, F, G, H, I, J, K, L)

fn default() -> (D, E, F, G, H, I, J, K, L)

Returns the “default value” for a type.

impl<C: Default, D: Default, E: Default, F: Default, G: Default, H: Default, I: Default, J: Default, K: Default, L: Default> Default for (C, D, E, F, G, H, I, J, K, L)

fn default() -> (C, D, E, F, G, H, I, J, K, L)

Returns the “default value” for a type.

impl<A, B, ExtendA, ExtendB> Extend<(A, B)> for (ExtendA, ExtendB) where
    ExtendA: Extend<A>,
    ExtendB: Extend<B>, 

fn extend<T: IntoIterator<Item = (A, B)>>(&mut self, into_iter: T)

Allows to extend a tuple of collections that also implement Extend.

See also: Iterator::unzip

Examples

let mut tuple = (vec![0], vec![1]);
tuple.extend([(2, 3), (4, 5), (6, 7)]);
assert_eq!(tuple.0, [0, 2, 4, 6]);
assert_eq!(tuple.1, [1, 3, 5, 7]);

// also allows for arbitrarily nested tuples as elements
let mut nested_tuple = (vec![1], (vec![2], vec![3]));
nested_tuple.extend([(4, (5, 6)), (7, (8, 9))]);

let (a, (b, c)) = nested_tuple;
assert_eq!(a, [1, 4, 7]);
assert_eq!(b, [2, 5, 8]);
assert_eq!(c, [3, 6, 9]);

fn extend_one(&mut self, item: (A, B))

🔬 This is a nightly-only experimental API. (extend_one #72631)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬 This is a nightly-only experimental API. (extend_one #72631)

Reserves capacity in a collection for the given number of additional elements.

impl<A: Hash> Hash for (A,) where
    A: ?Sized, 

fn hash<S: Hasher>(&self, state: &mut S)

Feeds this value into the given Hasher.

fn hash_slice<H: Hasher>(data: &[Self], state: &mut H) where
    Self: Sized, 

Feeds a slice of this type into the given Hasher.

impl<A: Hash, B: Hash> Hash for (A, B) where
    B: ?Sized, 

fn hash<S: Hasher>(&self, state: &mut S)

Feeds this value into the given Hasher.

fn hash_slice<H: Hasher>(data: &[Self], state: &mut H) where
    Self: Sized, 

Feeds a slice of this type into the given Hasher.

impl<A: Hash, B: Hash, C: Hash, D: Hash, E: Hash, F: Hash, G: Hash, H: Hash, I: Hash, J: Hash, K: Hash> Hash for (A, B, C, D, E, F, G, H, I, J, K) where
    K: ?Sized, 

fn hash<S: Hasher>(&self, state: &mut S)

Feeds this value into the given Hasher.

fn hash_slice<H: Hasher>(data: &[Self], state: &mut H) where
    Self: Sized, 

Feeds a slice of this type into the given Hasher.

impl<A: Hash, B: Hash, C: Hash, D: Hash, E: Hash, F: Hash, G: Hash, H: Hash, I: Hash, J: Hash, K: Hash, L: Hash> Hash for (A, B, C, D, E, F, G, H, I, J, K, L) where
    L: ?Sized, 

fn hash<S: Hasher>(&self, state: &mut S)

Feeds this value into the given Hasher.

fn hash_slice<H: Hasher>(data: &[Self], state: &mut H) where
    Self: Sized, 

Feeds a slice of this type into the given Hasher.

impl<A: Hash, B: Hash, C: Hash> Hash for (A, B, C) where
    C: ?Sized, 

fn hash<S: Hasher>(&self, state: &mut S)

Feeds this value into the given Hasher.

fn hash_slice<H: Hasher>(data: &[Self], state: &mut H) where
    Self: Sized, 

Feeds a slice of this type into the given Hasher.

impl<A: Hash, B: Hash, C: Hash, D: Hash> Hash for (A, B, C, D) where
    D: ?Sized, 

fn hash<S: Hasher>(&self, state: &mut S)

Feeds this value into the given Hasher.

fn hash_slice<H: Hasher>(data: &[Self], state: &mut H) where
    Self: Sized, 

Feeds a slice of this type into the given Hasher.

impl<A: Hash, B: Hash, C: Hash, D: Hash, E: Hash> Hash for (A, B, C, D, E) where
    E: ?Sized, 

fn hash<S: Hasher>(&self, state: &mut S)

Feeds this value into the given Hasher.

fn hash_slice<H: Hasher>(data: &[Self], state: &mut H) where
    Self: Sized, 

Feeds a slice of this type into the given Hasher.

impl<A: Hash, B: Hash, C: Hash, D: Hash, E: Hash, F: Hash> Hash for (A, B, C, D, E, F) where
    F: ?Sized, 

fn hash<S: Hasher>(&self, state: &mut S)

Feeds this value into the given Hasher.

fn hash_slice<H: Hasher>(data: &[Self], state: &mut H) where
    Self: Sized, 

Feeds a slice of this type into the given Hasher.

impl<A: Hash, B: Hash, C: Hash, D: Hash, E: Hash, F: Hash, G: Hash> Hash for (A, B, C, D, E, F, G) where
    G: ?Sized, 

fn hash<S: Hasher>(&self, state: &mut S)

Feeds this value into the given Hasher.

fn hash_slice<H: Hasher>(data: &[Self], state: &mut H) where
    Self: Sized, 

Feeds a slice of this type into the given Hasher.

impl<A: Hash, B: Hash, C: Hash, D: Hash, E: Hash, F: Hash, G: Hash, H: Hash> Hash for (A, B, C, D, E, F, G, H) where
    H: ?Sized, 

fn hash<S: Hasher>(&self, state: &mut S)

Feeds this value into the given Hasher.

fn hash_slice<H: Hasher>(data: &[Self], state: &mut H) where
    Self: Sized, 

Feeds a slice of this type into the given Hasher.

impl<A: Hash, B: Hash, C: Hash, D: Hash, E: Hash, F: Hash, G: Hash, H: Hash, I: Hash> Hash for (A, B, C, D, E, F, G, H, I) where
    I: ?Sized, 

fn hash<S: Hasher>(&self, state: &mut S)

Feeds this value into the given Hasher.

fn hash_slice<H: Hasher>(data: &[Self], state: &mut H) where
    Self: Sized, 

Feeds a slice of this type into the given Hasher.

impl<A: Hash, B: Hash, C: Hash, D: Hash, E: Hash, F: Hash, G: Hash, H: Hash, I: Hash, J: Hash> Hash for (A, B, C, D, E, F, G, H, I, J) where
    J: ?Sized, 

fn hash<S: Hasher>(&self, state: &mut S)

Feeds this value into the given Hasher.

fn hash_slice<H: Hasher>(data: &[Self], state: &mut H) where
    Self: Sized, 

Feeds a slice of this type into the given Hasher.

impl<L: Ord> Ord for (L,) where
    L: ?Sized, 

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

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

Restrict a value to a certain interval.

impl<K: Ord, L: Ord> Ord for (K, L) where
    L: ?Sized, 

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

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

Restrict a value to a certain interval.

impl<B: Ord, C: Ord, D: Ord, E: Ord, F: Ord, G: Ord, H: Ord, I: Ord, J: Ord, K: Ord, L: Ord> Ord for (B, C, D, E, F, G, H, I, J, K, L) where
    L: ?Sized, 

fn cmp(&self, other: &(B, C, D, E, F, G, H, I, J, K, L)) -> Ordering

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

Restrict a value to a certain interval.

impl<A: Ord, B: Ord, C: Ord, D: Ord, E: Ord, F: Ord, G: Ord, H: Ord, I: Ord, J: Ord, K: Ord, L: Ord> Ord for (A, B, C, D, E, F, G, H, I, J, K, L) where
    L: ?Sized, 

fn cmp(&self, other: &(A, B, C, D, E, F, G, H, I, J, K, L)) -> Ordering

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

Restrict a value to a certain interval.

impl<J: Ord, K: Ord, L: Ord> Ord for (J, K, L) where
    L: ?Sized, 

fn cmp(&self, other: &(J, K, L)) -> Ordering

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

Restrict a value to a certain interval.

impl<I: Ord, J: Ord, K: Ord, L: Ord> Ord for (I, J, K, L) where
    L: ?Sized, 

fn cmp(&self, other: &(I, J, K, L)) -> Ordering

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

Restrict a value to a certain interval.

impl<H: Ord, I: Ord, J: Ord, K: Ord, L: Ord> Ord for (H, I, J, K, L) where
    L: ?Sized, 

fn cmp(&self, other: &(H, I, J, K, L)) -> Ordering

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

Restrict a value to a certain interval.

impl<G: Ord, H: Ord, I: Ord, J: Ord, K: Ord, L: Ord> Ord for (G, H, I, J, K, L) where
    L: ?Sized, 

fn cmp(&self, other: &(G, H, I, J, K, L)) -> Ordering

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

Restrict a value to a certain interval.

impl<F: Ord, G: Ord, H: Ord, I: Ord, J: Ord, K: Ord, L: Ord> Ord for (F, G, H, I, J, K, L) where
    L: ?Sized, 

fn cmp(&self, other: &(F, G, H, I, J, K, L)) -> Ordering

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

Restrict a value to a certain interval.

impl<E: Ord, F: Ord, G: Ord, H: Ord, I: Ord, J: Ord, K: Ord, L: Ord> Ord for (E, F, G, H, I, J, K, L) where
    L: ?Sized, 

fn cmp(&self, other: &(E, F, G, H, I, J, K, L)) -> Ordering

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

Restrict a value to a certain interval.

impl<D: Ord, E: Ord, F: Ord, G: Ord, H: Ord, I: Ord, J: Ord, K: Ord, L: Ord> Ord for (D, E, F, G, H, I, J, K, L) where
    L: ?Sized, 

fn cmp(&self, other: &(D, E, F, G, H, I, J, K, L)) -> Ordering

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

Restrict a value to a certain interval.

impl<C: Ord, D: Ord, E: Ord, F: Ord, G: Ord, H: Ord, I: Ord, J: Ord, K: Ord, L: Ord> Ord for (C, D, E, F, G, H, I, J, K, L) where
    L: ?Sized, 

fn cmp(&self, other: &(C, D, E, F, G, H, I, J, K, L)) -> Ordering

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

Restrict a value to a certain interval.

impl<A: PartialEq, B: PartialEq, C: PartialEq, D: PartialEq, E: PartialEq, F: PartialEq, G: PartialEq, H: PartialEq, I: PartialEq, J: PartialEq, K: PartialEq, L: PartialEq> PartialEq<(A, B, C, D, E, F, G, H, I, J, K, L)> for (A, B, C, D, E, F, G, H, I, J, K, L) where
    L: ?Sized, 

fn eq(&self, other: &(A, B, C, D, E, F, G, H, I, J, K, L)) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &(A, B, C, D, E, F, G, H, I, J, K, L)) -> bool

This method tests for !=.

impl<B: PartialEq, C: PartialEq, D: PartialEq, E: PartialEq, F: PartialEq, G: PartialEq, H: PartialEq, I: PartialEq, J: PartialEq, K: PartialEq, L: PartialEq> PartialEq<(B, C, D, E, F, G, H, I, J, K, L)> for (B, C, D, E, F, G, H, I, J, K, L) where
    L: ?Sized, 

fn eq(&self, other: &(B, C, D, E, F, G, H, I, J, K, L)) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &(B, C, D, E, F, G, H, I, J, K, L)) -> bool

This method tests for !=.

impl<C: PartialEq, D: PartialEq, E: PartialEq, F: PartialEq, G: PartialEq, H: PartialEq, I: PartialEq, J: PartialEq, K: PartialEq, L: PartialEq> PartialEq<(C, D, E, F, G, H, I, J, K, L)> for (C, D, E, F, G, H, I, J, K, L) where
    L: ?Sized, 

fn eq(&self, other: &(C, D, E, F, G, H, I, J, K, L)) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &(C, D, E, F, G, H, I, J, K, L)) -> bool

This method tests for !=.

impl<D: PartialEq, E: PartialEq, F: PartialEq, G: PartialEq, H: PartialEq, I: PartialEq, J: PartialEq, K: PartialEq, L: PartialEq> PartialEq<(D, E, F, G, H, I, J, K, L)> for (D, E, F, G, H, I, J, K, L) where
    L: ?Sized, 

fn eq(&self, other: &(D, E, F, G, H, I, J, K, L)) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &(D, E, F, G, H, I, J, K, L)) -> bool

This method tests for !=.

impl<E: PartialEq, F: PartialEq, G: PartialEq, H: PartialEq, I: PartialEq, J: PartialEq, K: PartialEq, L: PartialEq> PartialEq<(E, F, G, H, I, J, K, L)> for (E, F, G, H, I, J, K, L) where
    L: ?Sized, 

fn eq(&self, other: &(E, F, G, H, I, J, K, L)) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &(E, F, G, H, I, J, K, L)) -> bool

This method tests for !=.

impl<F: PartialEq, G: PartialEq, H: PartialEq, I: PartialEq, J: PartialEq, K: PartialEq, L: PartialEq> PartialEq<(F, G, H, I, J, K, L)> for (F, G, H, I, J, K, L) where
    L: ?Sized, 

fn eq(&self, other: &(F, G, H, I, J, K, L)) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &(F, G, H, I, J, K, L)) -> bool

This method tests for !=.

impl<G: PartialEq, H: PartialEq, I: PartialEq, J: PartialEq, K: PartialEq, L: PartialEq> PartialEq<(G, H, I, J, K, L)> for (G, H, I, J, K, L) where
    L: ?Sized, 

fn eq(&self, other: &(G, H, I, J, K, L)) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &(G, H, I, J, K, L)) -> bool

This method tests for !=.

impl<H: PartialEq, I: PartialEq, J: PartialEq, K: PartialEq, L: PartialEq> PartialEq<(H, I, J, K, L)> for (H, I, J, K, L) where
    L: ?Sized, 

fn eq(&self, other: &(H, I, J, K, L)) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &(H, I, J, K, L)) -> bool

This method tests for !=.

impl<I: PartialEq, J: PartialEq, K: PartialEq, L: PartialEq> PartialEq<(I, J, K, L)> for (I, J, K, L) where
    L: ?Sized, 

fn eq(&self, other: &(I, J, K, L)) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &(I, J, K, L)) -> bool

This method tests for !=.

impl<J: PartialEq, K: PartialEq, L: PartialEq> PartialEq<(J, K, L)> for (J, K, L) where
    L: ?Sized, 

fn eq(&self, other: &(J, K, L)) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &(J, K, L)) -> bool

This method tests for !=.

impl<K: PartialEq, L: PartialEq> PartialEq<(K, L)> for (K, L) where
    L: ?Sized, 

fn eq(&self, other: &(K, L)) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &(K, L)) -> bool

This method tests for !=.

impl<L: PartialEq> PartialEq<(L,)> for (L,) where
    L: ?Sized, 

fn eq(&self, other: &(L,)) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &(L,)) -> bool

This method tests for !=.

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 + PartialEq> 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: ?Sized, 

fn partial_cmp(
    &self,
    other: &(A, B, C, D, E, F, G, H, I, J, K, L)
) -> Option<Ordering>

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

fn lt(&self, other: &(A, B, C, D, E, F, G, H, I, J, K, L)) -> bool

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

fn le(&self, other: &(A, B, C, D, E, F, G, H, I, J, K, L)) -> bool

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

fn ge(&self, other: &(A, B, C, D, E, F, G, H, I, J, K, L)) -> bool

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

fn gt(&self, other: &(A, B, C, D, E, F, G, H, I, J, K, L)) -> bool

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

impl<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 + PartialEq> PartialOrd<(B, C, D, E, F, G, H, I, J, K, L)> for (B, C, D, E, F, G, H, I, J, K, L) where
    L: ?Sized, 

fn partial_cmp(
    &self,
    other: &(B, C, D, E, F, G, H, I, J, K, L)
) -> Option<Ordering>

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

fn lt(&self, other: &(B, C, D, E, F, G, H, I, J, K, L)) -> bool

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

fn le(&self, other: &(B, C, D, E, F, G, H, I, J, K, L)) -> bool

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

fn ge(&self, other: &(B, C, D, E, F, G, H, I, J, K, L)) -> bool

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

fn gt(&self, other: &(B, C, D, E, F, G, H, I, J, K, L)) -> bool

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

impl<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 + PartialEq> PartialOrd<(C, D, E, F, G, H, I, J, K, L)> for (C, D, E, F, G, H, I, J, K, L) where
    L: ?Sized, 

fn partial_cmp(
    &self,
    other: &(C, D, E, F, G, H, I, J, K, L)
) -> Option<Ordering>

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

fn lt(&self, other: &(C, D, E, F, G, H, I, J, K, L)) -> bool

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

fn le(&self, other: &(C, D, E, F, G, H, I, J, K, L)) -> bool

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

fn ge(&self, other: &(C, D, E, F, G, H, I, J, K, L)) -> bool

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

fn gt(&self, other: &(C, D, E, F, G, H, I, J, K, L)) -> bool

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

impl<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 + PartialEq> PartialOrd<(D, E, F, G, H, I, J, K, L)> for (D, E, F, G, H, I, J, K, L) where
    L: ?Sized, 

fn partial_cmp(&self, other: &(D, E, F, G, H, I, J, K, L)) -> Option<Ordering>

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

fn lt(&self, other: &(D, E, F, G, H, I, J, K, L)) -> bool

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

fn le(&self, other: &(D, E, F, G, H, I, J, K, L)) -> bool

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

fn ge(&self, other: &(D, E, F, G, H, I, J, K, L)) -> bool

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

fn gt(&self, other: &(D, E, F, G, H, I, J, K, L)) -> bool

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

impl<E: PartialOrd + PartialEq, F: PartialOrd + PartialEq, G: PartialOrd + PartialEq, H: PartialOrd + PartialEq, I: PartialOrd + PartialEq, J: PartialOrd + PartialEq, K: PartialOrd + PartialEq, L: PartialOrd + PartialEq> PartialOrd<(E, F, G, H, I, J, K, L)> for (E, F, G, H, I, J, K, L) where
    L: ?Sized, 

fn partial_cmp(&self, other: &(E, F, G, H, I, J, K, L)) -> Option<Ordering>

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

fn lt(&self, other: &(E, F, G, H, I, J, K, L)) -> bool

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

fn le(&self, other: &(E, F, G, H, I, J, K, L)) -> bool

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

fn ge(&self, other: &(E, F, G, H, I, J, K, L)) -> bool

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

fn gt(&self, other: &(E, F, G, H, I, J, K, L)) -> bool

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

impl<F: PartialOrd + PartialEq, G: PartialOrd + PartialEq, H: PartialOrd + PartialEq, I: PartialOrd + PartialEq, J: PartialOrd + PartialEq, K: PartialOrd + PartialEq, L: PartialOrd + PartialEq> PartialOrd<(F, G, H, I, J, K, L)> for (F, G, H, I, J, K, L) where
    L: ?Sized, 

fn partial_cmp(&self, other: &(F, G, H, I, J, K, L)) -> Option<Ordering>

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

fn lt(&self, other: &(F, G, H, I, J, K, L)) -> bool

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

fn le(&self, other: &(F, G, H, I, J, K, L)) -> bool

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

fn ge(&self, other: &(F, G, H, I, J, K, L)) -> bool

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

fn gt(&self, other: &(F, G, H, I, J, K, L)) -> bool

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

impl<G: PartialOrd + PartialEq, H: PartialOrd + PartialEq, I: PartialOrd + PartialEq, J: PartialOrd + PartialEq, K: PartialOrd + PartialEq, L: PartialOrd + PartialEq> PartialOrd<(G, H, I, J, K, L)> for (G, H, I, J, K, L) where
    L: ?Sized, 

fn partial_cmp(&self, other: &(G, H, I, J, K, L)) -> Option<Ordering>

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

fn lt(&self, other: &(G, H, I, J, K, L)) -> bool

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

fn le(&self, other: &(G, H, I, J, K, L)) -> bool

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

fn ge(&self, other: &(G, H, I, J, K, L)) -> bool

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

fn gt(&self, other: &(G, H, I, J, K, L)) -> bool

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

impl<H: PartialOrd + PartialEq, I: PartialOrd + PartialEq, J: PartialOrd + PartialEq, K: PartialOrd + PartialEq, L: PartialOrd + PartialEq> PartialOrd<(H, I, J, K, L)> for (H, I, J, K, L) where
    L: ?Sized, 

fn partial_cmp(&self, other: &(H, I, J, K, L)) -> Option<Ordering>

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

fn lt(&self, other: &(H, I, J, K, L)) -> bool

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

fn le(&self, other: &(H, I, J, K, L)) -> bool

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

fn ge(&self, other: &(H, I, J, K, L)) -> bool

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

fn gt(&self, other: &(H, I, J, K, L)) -> bool

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

impl<I: PartialOrd + PartialEq, J: PartialOrd + PartialEq, K: PartialOrd + PartialEq, L: PartialOrd + PartialEq> PartialOrd<(I, J, K, L)> for (I, J, K, L) where
    L: ?Sized, 

fn partial_cmp(&self, other: &(I, J, K, L)) -> Option<Ordering>

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

fn lt(&self, other: &(I, J, K, L)) -> bool

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

fn le(&self, other: &(I, J, K, L)) -> bool

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

fn ge(&self, other: &(I, J, K, L)) -> bool

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

fn gt(&self, other: &(I, J, K, L)) -> bool

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

impl<J: PartialOrd + PartialEq, K: PartialOrd + PartialEq, L: PartialOrd + PartialEq> PartialOrd<(J, K, L)> for (J, K, L) where
    L: ?Sized, 

fn partial_cmp(&self, other: &(J, K, L)) -> Option<Ordering>

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

fn lt(&self, other: &(J, K, L)) -> bool

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

fn le(&self, other: &(J, K, L)) -> bool

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

fn ge(&self, other: &(J, K, L)) -> bool

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

fn gt(&self, other: &(J, K, L)) -> bool

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

impl<K: PartialOrd + PartialEq, L: PartialOrd + PartialEq> PartialOrd<(K, L)> for (K, L) where
    L: ?Sized, 

fn partial_cmp(&self, other: &(K, L)) -> Option<Ordering>

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

fn lt(&self, other: &(K, L)) -> bool

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

fn le(&self, other: &(K, L)) -> bool

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

fn ge(&self, other: &(K, L)) -> bool

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

fn gt(&self, other: &(K, L)) -> bool

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

impl<L: PartialOrd + PartialEq> PartialOrd<(L,)> for (L,) where
    L: ?Sized, 

fn partial_cmp(&self, other: &(L,)) -> Option<Ordering>

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

fn lt(&self, other: &(L,)) -> bool

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

fn le(&self, other: &(L,)) -> bool

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

fn ge(&self, other: &(L,)) -> bool

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

fn gt(&self, other: &(L,)) -> bool

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

impl<T> RangeBounds<T> for (Bound<T>, Bound<T>)

fn start_bound(&self) -> Bound<&T>

Start index bound.

fn end_bound(&self) -> Bound<&T>

End index bound.

fn contains<U>(&self, item: &U) -> bool where
    T: PartialOrd<U>,
    U: ?Sized + PartialOrd<T>, 

Returns true if item is contained in the range.

impl<'a, T: ?Sized + 'a> RangeBounds<T> for (Bound<&'a T>, Bound<&'a T>)

fn start_bound(&self) -> Bound<&T>

Start index bound.

fn end_bound(&self) -> Bound<&T>

End index bound.

fn contains<U>(&self, item: &U) -> bool where
    T: PartialOrd<U>,
    U: ?Sized + PartialOrd<T>, 

Returns true if item is contained in the range.

impl<T> SliceIndex<[T]> for (Bound<usize>, Bound<usize>)

type Output = [T]

The output type returned by methods.

fn get(self, slice: &[T]) -> Option<&Self::Output>

🔬 This is a nightly-only experimental API. (slice_index_methods)

Returns a shared reference to the output at this location, if in bounds.

fn get_mut(self, slice: &mut [T]) -> Option<&mut Self::Output>

🔬 This is a nightly-only experimental API. (slice_index_methods)

Returns a mutable reference to the output at this location, if in bounds.

unsafe fn get_unchecked(self, slice: *const [T]) -> *const Self::Output

🔬 This is a nightly-only experimental API. (slice_index_methods)

Returns a shared reference to the output at this location, without performing any bounds checking. Calling this method with an out-of-bounds index or a dangling slice pointer is undefined behavior even if the resulting reference is not used.

unsafe fn get_unchecked_mut(self, slice: *mut [T]) -> *mut Self::Output

🔬 This is a nightly-only experimental API. (slice_index_methods)

Returns a mutable reference to the output at this location, without performing any bounds checking. Calling this method with an out-of-bounds index or a dangling slice pointer is undefined behavior even if the resulting reference is not used.

fn index(self, slice: &[T]) -> &Self::Output

🔬 This is a nightly-only experimental API. (slice_index_methods)

Returns a shared reference to the output at this location, panicking if out of bounds.

fn index_mut(self, slice: &mut [T]) -> &mut Self::Output

🔬 This is a nightly-only experimental API. (slice_index_methods)

Returns a mutable reference to the output at this location, panicking if out of bounds.

impl<L: Eq> Eq for (L,) where
    L: ?Sized, 

impl<K: Eq, L: Eq> Eq for (K, L) where
    L: ?Sized, 

impl<B: Eq, C: Eq, D: Eq, E: Eq, F: Eq, G: Eq, H: Eq, I: Eq, J: Eq, K: Eq, L: Eq> Eq for (B, C, D, E, F, G, H, I, J, K, L) where
    L: ?Sized, 

impl<A: Eq, B: Eq, C: Eq, D: Eq, E: Eq, F: Eq, G: Eq, H: Eq, I: Eq, J: Eq, K: Eq, L: Eq> Eq for (A, B, C, D, E, F, G, H, I, J, K, L) where
    L: ?Sized, 

impl<J: Eq, K: Eq, L: Eq> Eq for (J, K, L) where
    L: ?Sized, 

impl<I: Eq, J: Eq, K: Eq, L: Eq> Eq for (I, J, K, L) where
    L: ?Sized, 

impl<H: Eq, I: Eq, J: Eq, K: Eq, L: Eq> Eq for (H, I, J, K, L) where
    L: ?Sized, 

impl<G: Eq, H: Eq, I: Eq, J: Eq, K: Eq, L: Eq> Eq for (G, H, I, J, K, L) where
    L: ?Sized, 

impl<F: Eq, G: Eq, H: Eq, I: Eq, J: Eq, K: Eq, L: Eq> Eq for (F, G, H, I, J, K, L) where
    L: ?Sized, 

impl<E: Eq, F: Eq, G: Eq, H: Eq, I: Eq, J: Eq, K: Eq, L: Eq> Eq for (E, F, G, H, I, J, K, L) where
    L: ?Sized, 

impl<D: Eq, E: Eq, F: Eq, G: Eq, H: Eq, I: Eq, J: Eq, K: Eq, L: Eq> Eq for (D, E, F, G, H, I, J, K, L) where
    L: ?Sized, 

impl<C: Eq, D: Eq, E: Eq, F: Eq, G: Eq, H: Eq, I: Eq, J: Eq, K: Eq, L: Eq> Eq for (C, D, E, F, G, H, I, J, K, L) where
    L: ?Sized,