Creates an empty LinkedList.

Examples

use std::collections::LinkedList;

let list: LinkedList<u32> = LinkedList::new();

Moves all elements from other to the end of the list.

This reuses all the nodes from other and moves them into self. After this operation, other becomes empty.

This operation should compute in O(1) time and O(1) memory.

Examples

use std::collections::LinkedList;

let mut list1 = LinkedList::new();
list1.push_back('a');

let mut list2 = LinkedList::new();
list2.push_back('b');
list2.push_back('c');

list1.append(&mut list2);

let mut iter = list1.iter();
assert_eq!(iter.next(), Some(&'a'));
assert_eq!(iter.next(), Some(&'b'));
assert_eq!(iter.next(), Some(&'c'));
assert!(iter.next().is_none());

assert!(list2.is_empty());

Provides a forward iterator.

Examples

use std::collections::LinkedList;

let mut list: LinkedList<u32> = LinkedList::new();

list.push_back(0);
list.push_back(1);
list.push_back(2);

let mut iter = list.iter();
assert_eq!(iter.next(), Some(&0));
assert_eq!(iter.next(), Some(&1));
assert_eq!(iter.next(), Some(&2));
assert_eq!(iter.next(), None);

Provides a forward iterator with mutable references.

Examples

use std::collections::LinkedList;

let mut list: LinkedList<u32> = LinkedList::new();

list.push_back(0);
list.push_back(1);
list.push_back(2);

for element in list.iter_mut() {
    *element += 10;
}

let mut iter = list.iter();
assert_eq!(iter.next(), Some(&10));
assert_eq!(iter.next(), Some(&11));
assert_eq!(iter.next(), Some(&12));
assert_eq!(iter.next(), None);

Returns true if the LinkedList is empty.

This operation should compute in O(1) time.

Examples

use std::collections::LinkedList;

let mut dl = LinkedList::new();
assert!(dl.is_empty());

dl.push_front("foo");
assert!(!dl.is_empty());

Returns the length of the LinkedList.

This operation should compute in O(1) time.

Examples

use std::collections::LinkedList;

let mut dl = LinkedList::new();

dl.push_front(2);
assert_eq!(dl.len(), 1);

dl.push_front(1);
assert_eq!(dl.len(), 2);

dl.push_back(3);
assert_eq!(dl.len(), 3);

Removes all elements from the LinkedList.

This operation should compute in O(n) time.

Examples

use std::collections::LinkedList;

let mut dl = LinkedList::new();

dl.push_front(2);
dl.push_front(1);
assert_eq!(dl.len(), 2);
assert_eq!(dl.front(), Some(&1));

dl.clear();
assert_eq!(dl.len(), 0);
assert_eq!(dl.front(), None);

Returns true if the LinkedList contains an element equal to the given value.

Examples

use std::collections::LinkedList;

let mut list: LinkedList<u32> = LinkedList::new();

list.push_back(0);
list.push_back(1);
list.push_back(2);

assert_eq!(list.contains(&0), true);
assert_eq!(list.contains(&10), false);

Provides a reference to the front element, or None if the list is empty.

Examples

use std::collections::LinkedList;

let mut dl = LinkedList::new();
assert_eq!(dl.front(), None);

dl.push_front(1);
assert_eq!(dl.front(), Some(&1));

Provides a mutable reference to the front element, or None if the list is empty.

Examples

use std::collections::LinkedList;

let mut dl = LinkedList::new();
assert_eq!(dl.front(), None);

dl.push_front(1);
assert_eq!(dl.front(), Some(&1));

match dl.front_mut() {
    None => {},
    Some(x) => *x = 5,
}
assert_eq!(dl.front(), Some(&5));

Provides a reference to the back element, or None if the list is empty.

Examples

use std::collections::LinkedList;

let mut dl = LinkedList::new();
assert_eq!(dl.back(), None);

dl.push_back(1);
assert_eq!(dl.back(), Some(&1));

Provides a mutable reference to the back element, or None if the list is empty.

Examples

use std::collections::LinkedList;

let mut dl = LinkedList::new();
assert_eq!(dl.back(), None);

dl.push_back(1);
assert_eq!(dl.back(), Some(&1));

match dl.back_mut() {
    None => {},
    Some(x) => *x = 5,
}
assert_eq!(dl.back(), Some(&5));

Adds an element first in the list.

This operation should compute in O(1) time.

Examples

use std::collections::LinkedList;

let mut dl = LinkedList::new();

dl.push_front(2);
assert_eq!(dl.front().unwrap(), &2);

dl.push_front(1);
assert_eq!(dl.front().unwrap(), &1);

Removes the first element and returns it, or None if the list is empty.

This operation should compute in O(1) time.

Examples

use std::collections::LinkedList;

let mut d = LinkedList::new();
assert_eq!(d.pop_front(), None);

d.push_front(1);
d.push_front(3);
assert_eq!(d.pop_front(), Some(3));
assert_eq!(d.pop_front(), Some(1));
assert_eq!(d.pop_front(), None);

Appends an element to the back of a list

Examples

use std::collections::LinkedList;

let mut d = LinkedList::new();
d.push_back(1);
d.push_back(3);
assert_eq!(3, *d.back().unwrap());

Removes the last element from a list and returns it, or None if it is empty.

Examples

use std::collections::LinkedList;

let mut d = LinkedList::new();
assert_eq!(d.pop_back(), None);
d.push_back(1);
d.push_back(3);
assert_eq!(d.pop_back(), Some(3));

Splits the list into two at the given index. Returns everything after the given index, including the index.

Panics

Panics if at > len.

This operation should compute in O(n) time.

Examples

use std::collections::LinkedList;

let mut d = LinkedList::new();

d.push_front(1);
d.push_front(2);
d.push_front(3);

let mut splitted = d.split_off(2);

assert_eq!(splitted.pop_front(), Some(1));
assert_eq!(splitted.pop_front(), None);

Returns a place for insertion at the front of the list.

Using this method with placement syntax is equivalent to push_front, but may be more efficient.

Examples

#![feature(collection_placement)]
#![feature(placement_in_syntax)]

use std::collections::LinkedList;

let mut list = LinkedList::new();
list.front_place() <- 2;
list.front_place() <- 4;
assert!(list.iter().eq(&[4, 2]));

Returns a place for insertion at the back of the list.

Using this method with placement syntax is equivalent to push_back, but may be more efficient.

Examples

#![feature(collection_placement)]
#![feature(placement_in_syntax)]

use std::collections::LinkedList;

let mut list = LinkedList::new();
list.back_place() <- 2;
list.back_place() <- 4;
assert!(list.iter().eq(&[2, 4]));

Creates an empty LinkedList<T>.

A method called when the value goes out of scope. Read more

Creates a value from an iterator. Read more

The type of the elements being iterated over.

Which kind of iterator are we turning this into?

Consumes the list into an iterator yielding elements by value.

The type of the elements being iterated over.

Which kind of iterator are we turning this into?

Creates an iterator from a value. Read more

The type of the elements being iterated over.

Which kind of iterator are we turning this into?

Creates an iterator from a value. Read more

Extends a collection with the contents of an iterator. Read more

Extends a collection with the contents of an iterator. Read more

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

This method tests for !=.

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

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

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

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

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

This method returns an Ordering between self and other. Read more

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter.

Feeds this value into the state given, updating the hasher as necessary.

Feeds a slice of this type into the state provided.