collections::vec::Vec
Struct collections::vec::Vec
pub struct Vec<T> { /* fields omitted */ }
A contiguous growable array type, written Vec<T>
but pronounced 'vector'.
Examples
let mut vec = Vec::new(); vec.push(1); vec.push(2); assert_eq!(vec.len(), 2); assert_eq!(vec[0], 1); assert_eq!(vec.pop(), Some(2)); assert_eq!(vec.len(), 1); vec[0] = 7; assert_eq!(vec[0], 7); vec.extend([1, 2, 3].iter().cloned()); for x in &vec { println!("{}", x); } assert_eq!(vec, [7, 1, 2, 3]);
The vec!
macro is provided to make initialization more convenient:
let mut vec = vec![1, 2, 3]; vec.push(4); assert_eq!(vec, [1, 2, 3, 4]);
It can also initialize each element of a Vec<T>
with a given value:
let vec = vec![0; 5]; assert_eq!(vec, [0, 0, 0, 0, 0]);
Use a Vec<T>
as an efficient stack:
let mut stack = Vec::new(); stack.push(1); stack.push(2); stack.push(3); while let Some(top) = stack.pop() { // Prints 3, 2, 1 println!("{}", top); }
Indexing
The Vec
type allows to access values by index, because it implements the Index
trait. An example will be more explicit:
let v = vec![0, 2, 4, 6]; println!("{}", v[1]); // it will display '2'
However be careful: if you try to access an index which isn't in the Vec
, your software will panic! You cannot do this:
let v = vec![0, 2, 4, 6]; println!("{}", v[6]); // it will panic!
In conclusion: always check if the index you want to get really exists before doing it.
Slicing
A Vec
can be mutable. Slices, on the other hand, are read-only objects. To get a slice, use &
. Example:
fn read_slice(slice: &[usize]) { // ... } let v = vec![0, 1]; read_slice(&v); // ... and that's all! // you can also do it like this: let x : &[usize] = &v;
In Rust, it's more common to pass slices as arguments rather than vectors when you just want to provide a read access. The same goes for String
and &str
.
Capacity and reallocation
The capacity of a vector is the amount of space allocated for any future elements that will be added onto the vector. This is not to be confused with the length of a vector, which specifies the number of actual elements within the vector. If a vector's length exceeds its capacity, its capacity will automatically be increased, but its elements will have to be reallocated.
For example, a vector with capacity 10 and length 0 would be an empty vector with space for 10 more elements. Pushing 10 or fewer elements onto the vector will not change its capacity or cause reallocation to occur. However, if the vector's length is increased to 11, it will have to reallocate, which can be slow. For this reason, it is recommended to use Vec::with_capacity
whenever possible to specify how big the vector is expected to get.
Guarantees
Due to its incredibly fundamental nature, Vec
makes a lot of guarantees about its design. This ensures that it's as low-overhead as possible in the general case, and can be correctly manipulated in primitive ways by unsafe code. Note that these guarantees refer to an unqualified Vec<T>
. If additional type parameters are added (e.g. to support custom allocators), overriding their defaults may change the behavior.
Most fundamentally, Vec
is and always will be a (pointer, capacity, length) triplet. No more, no less. The order of these fields is completely unspecified, and you should use the appropriate methods to modify these. The pointer will never be null, so this type is null-pointer-optimized.
However, the pointer may not actually point to allocated memory. In particular, if you construct a Vec
with capacity 0 via Vec::new
, vec![]
, Vec::with_capacity(0)
, or by calling shrink_to_fit
on an empty Vec, it will not allocate memory. Similarly, if you store zero-sized types inside a Vec
, it will not allocate space for them. Note that in this case the Vec
may not report a capacity
of 0. Vec
will allocate if and only if mem::size_of::<T>
* capacity() > 0
. In general, Vec
's allocation details are subtle enough that it is strongly recommended that you only free memory allocated by a Vec
by creating a new Vec
and dropping it.
If a Vec
has allocated memory, then the memory it points to is on the heap (as defined by the allocator Rust is configured to use by default), and its pointer points to len
initialized elements in order (what you would see if you coerced it to a slice), followed by capacity
-
len
logically uninitialized elements.
Vec
will never perform a "small optimization" where elements are actually stored on the stack for two reasons:
It would make it more difficult for unsafe code to correctly manipulate a
Vec
. The contents of aVec
wouldn't have a stable address if it were only moved, and it would be more difficult to determine if aVec
had actually allocated memory.It would penalize the general case, incurring an additional branch on every access.
Vec
will never automatically shrink itself, even if completely empty. This ensures no unnecessary allocations or deallocations occur. Emptying a Vec
and then filling it back up to the same len
should incur no calls to the allocator. If you wish to free up unused memory, use shrink_to_fit
.
push
and insert
will never (re)allocate if the reported capacity is sufficient. push
and insert
will (re)allocate if len
==
capacity
. That is, the reported capacity is completely accurate, and can be relied on. It can even be used to manually free the memory allocated by a Vec
if desired. Bulk insertion methods may reallocate, even when not necessary.
Vec
does not guarantee any particular growth strategy when reallocating when full, nor when reserve
is called. The current strategy is basic and it may prove desirable to use a non-constant growth factor. Whatever strategy is used will of course guarantee O(1)
amortized push
.
vec![x; n]
, vec![a, b, c, d]
, and Vec::with_capacity(n)
, will all produce a Vec
with exactly the requested capacity. If len
==
capacity
, (as is the case for the vec!
macro), then a Vec<T>
can be converted to and from a Box<[T]>
without reallocating or moving the elements.
Vec
will not specifically overwrite any data that is removed from it, but also won't specifically preserve it. Its uninitialized memory is scratch space that it may use however it wants. It will generally just do whatever is most efficient or otherwise easy to implement. Do not rely on removed data to be erased for security purposes. Even if you drop a Vec
, its buffer may simply be reused by another Vec
. Even if you zero a Vec
's memory first, that may not actually happen because the optimizer does not consider this a side-effect that must be preserved.
Vec
does not currently guarantee the order in which elements are dropped (the order has changed in the past, and may change again).
Methods
impl<T> Vec<T>
[src]
fn new() -> Vec<T>
Constructs a new, empty Vec<T>
.
The vector will not allocate until elements are pushed onto it.
Examples
let mut vec: Vec<i32> = Vec::new();
fn with_capacity(capacity: usize) -> Vec<T>
Constructs a new, empty Vec<T>
with the specified capacity.
The vector will be able to hold exactly capacity
elements without reallocating. If capacity
is 0, the vector will not allocate.
It is important to note that this function does not specify the length of the returned vector, but only the capacity. For an explanation of the difference between length and capacity, see Capacity and reallocation.
Examples
let mut vec = Vec::with_capacity(10); // The vector contains no items, even though it has capacity for more assert_eq!(vec.len(), 0); // These are all done without reallocating... for i in 0..10 { vec.push(i); } // ...but this may make the vector reallocate vec.push(11);
unsafe fn from_raw_parts(ptr: *mut T, length: usize, capacity: usize) -> Vec<T>
Creates a Vec<T>
directly from the raw components of another vector.
Safety
This is highly unsafe, due to the number of invariants that aren't checked:
-
ptr
needs to have been previously allocated viaString
/Vec<T>
(at least, it's highly likely to be incorrect if it wasn't). -
length
needs to be less than or equal tocapacity
. -
capacity
needs to be the capacity that the pointer was allocated with.
Violating these may cause problems like corrupting the allocator's internal datastructures. For example it is not safe to build a Vec<u8>
from a pointer to a C char
array and a size_t
.
The ownership of ptr
is effectively transferred to the Vec<T>
which may then deallocate, reallocate or change the contents of memory pointed to by the pointer at will. Ensure that nothing else uses the pointer after calling this function.
Examples
use std::ptr; use std::mem; fn main() { let mut v = vec![1, 2, 3]; // Pull out the various important pieces of information about `v` let p = v.as_mut_ptr(); let len = v.len(); let cap = v.capacity(); unsafe { // Cast `v` into the void: no destructor run, so we are in // complete control of the allocation to which `p` points. mem::forget(v); // Overwrite memory with 4, 5, 6 for i in 0..len as isize { ptr::write(p.offset(i), 4 + i); } // Put everything back together into a Vec let rebuilt = Vec::from_raw_parts(p, len, cap); assert_eq!(rebuilt, [4, 5, 6]); } }
fn capacity(&self) -> usize
Returns the number of elements the vector can hold without reallocating.
Examples
let vec: Vec<i32> = Vec::with_capacity(10); assert_eq!(vec.capacity(), 10);
fn reserve(&mut self, additional: usize)
Reserves capacity for at least additional
more elements to be inserted in the given Vec<T>
. The collection may reserve more space to avoid frequent reallocations. After calling reserve
, capacity will be greater than or equal to self.len() + additional
. Does nothing if capacity is already sufficient.
Panics
Panics if the new capacity overflows usize
.
Examples
let mut vec = vec![1]; vec.reserve(10); assert!(vec.capacity() >= 11);
fn reserve_exact(&mut self, additional: usize)
Reserves the minimum capacity for exactly additional
more elements to be inserted in the given Vec<T>
. After calling reserve_exact
, capacity will be greater than or equal to self.len() + additional
. Does nothing if the capacity is already sufficient.
Note that the allocator may give the collection more space than it requests. Therefore capacity can not be relied upon to be precisely minimal. Prefer reserve
if future insertions are expected.
Panics
Panics if the new capacity overflows usize
.
Examples
let mut vec = vec![1]; vec.reserve_exact(10); assert!(vec.capacity() >= 11);
fn shrink_to_fit(&mut self)
Shrinks the capacity of the vector as much as possible.
It will drop down as close as possible to the length but the allocator may still inform the vector that there is space for a few more elements.
Examples
let mut vec = Vec::with_capacity(10); vec.extend([1, 2, 3].iter().cloned()); assert_eq!(vec.capacity(), 10); vec.shrink_to_fit(); assert!(vec.capacity() >= 3);
fn into_boxed_slice(self) -> Box<[T]>
Converts the vector into Box<[T]>
.
Note that this will drop any excess capacity. Calling this and converting back to a vector with into_vec
is equivalent to calling shrink_to_fit
.
Examples
let v = vec![1, 2, 3]; let slice = v.into_boxed_slice();
Any excess capacity is removed:
let mut vec = Vec::with_capacity(10); vec.extend([1, 2, 3].iter().cloned()); assert_eq!(vec.capacity(), 10); let slice = vec.into_boxed_slice(); assert_eq!(slice.into_vec().capacity(), 3);
fn truncate(&mut self, len: usize)
Shortens the vector, keeping the first len
elements and dropping the rest.
If len
is greater than the vector's current length, this has no effect.
The drain
method can emulate truncate
, but causes the excess elements to be returned instead of dropped.
Note that this method has no effect on the allocated capacity of the vector.
Examples
Truncating a five element vector to two elements:
let mut vec = vec![1, 2, 3, 4, 5]; vec.truncate(2); assert_eq!(vec, [1, 2]);
No truncation occurs when len
is greater than the vector's current length:
let mut vec = vec![1, 2, 3]; vec.truncate(8); assert_eq!(vec, [1, 2, 3]);
Truncating when len == 0
is equivalent to calling the clear
method.
let mut vec = vec![1, 2, 3]; vec.truncate(0); assert_eq!(vec, []);
fn as_slice(&self) -> &[T]
1.7.0
Extracts a slice containing the entire vector.
Equivalent to &s[..]
.
Examples
use std::io::{self, Write}; let buffer = vec![1, 2, 3, 5, 8]; io::sink().write(buffer.as_slice()).unwrap();
fn as_mut_slice(&mut self) -> &mut [T]
1.7.0
Extracts a mutable slice of the entire vector.
Equivalent to &mut s[..]
.
Examples
use std::io::{self, Read}; let mut buffer = vec![0; 3]; io::repeat(0b101).read_exact(buffer.as_mut_slice()).unwrap();
unsafe fn set_len(&mut self, len: usize)
Sets the length of a vector.
This will explicitly set the size of the vector, without actually modifying its buffers, so it is up to the caller to ensure that the vector is actually the specified size.
Examples
use std::ptr; let mut vec = vec!['r', 'u', 's', 't']; unsafe { ptr::drop_in_place(&mut vec[3]); vec.set_len(3); } assert_eq!(vec, ['r', 'u', 's']);
In this example, there is a memory leak since the memory locations owned by the inner vectors were not freed prior to the set_len
call:
let mut vec = vec![vec![1, 0, 0], vec![0, 1, 0], vec![0, 0, 1]]; unsafe { vec.set_len(0); }
In this example, the vector gets expanded from zero to four items without any memory allocations occurring, resulting in vector values of unallocated memory:
let mut vec: Vec<char> = Vec::new(); unsafe { vec.set_len(4); }
fn swap_remove(&mut self, index: usize) -> T
Removes an element from the vector and returns it.
The removed element is replaced by the last element of the vector.
This does not preserve ordering, but is O(1).
Panics
Panics if index
is out of bounds.
Examples
let mut v = vec!["foo", "bar", "baz", "qux"]; assert_eq!(v.swap_remove(1), "bar"); assert_eq!(v, ["foo", "qux", "baz"]); assert_eq!(v.swap_remove(0), "foo"); assert_eq!(v, ["baz", "qux"]);
fn insert(&mut self, index: usize, element: T)
Inserts an element at position index
within the vector, shifting all elements after it to the right.
Panics
Panics if index
is out of bounds.
Examples
let mut vec = vec![1, 2, 3]; vec.insert(1, 4); assert_eq!(vec, [1, 4, 2, 3]); vec.insert(4, 5); assert_eq!(vec, [1, 4, 2, 3, 5]);
fn remove(&mut self, index: usize) -> T
Removes and returns the element at position index
within the vector, shifting all elements after it to the left.
Panics
Panics if index
is out of bounds.
Examples
let mut v = vec![1, 2, 3]; assert_eq!(v.remove(1), 2); assert_eq!(v, [1, 3]);
fn retain<F>(&mut self, f: F) where
F: FnMut(&T) -> bool,
F: FnMut(&T) -> bool,
Retains only the elements specified by the predicate.
In other words, remove all elements e
such that f(&e)
returns false
. This method operates in place and preserves the order of the retained elements.
Examples
let mut vec = vec![1, 2, 3, 4]; vec.retain(|&x| x%2 == 0); assert_eq!(vec, [2, 4]);
fn dedup_by_key<F, K>(&mut self, key: F) where
F: FnMut(&mut T) -> K,
K: PartialEq,
1.16.0
F: FnMut(&mut T) -> K,
K: PartialEq,
Removes consecutive elements in the vector that resolve to the same key.
If the vector is sorted, this removes all duplicates.
Examples
let mut vec = vec![10, 20, 21, 30, 20]; vec.dedup_by_key(|i| *i / 10); assert_eq!(vec, [10, 20, 30, 20]);
fn dedup_by<F>(&mut self, same_bucket: F) where
F: FnMut(&mut T, &mut T) -> bool,
1.16.0
F: FnMut(&mut T, &mut T) -> bool,
Removes consecutive elements in the vector according to a predicate.
The same_bucket
function is passed references to two elements from the vector, and returns true
if the elements compare equal, or false
if they do not. Only the first of adjacent equal items is kept.
If the vector is sorted, this removes all duplicates.
Examples
use std::ascii::AsciiExt; let mut vec = vec!["foo", "bar", "Bar", "baz", "bar"]; vec.dedup_by(|a, b| a.eq_ignore_ascii_case(b)); assert_eq!(vec, ["foo", "bar", "baz", "bar"]);
fn push(&mut self, value: T)
Appends an element to the back of a collection.
Panics
Panics if the number of elements in the vector overflows a usize
.
Examples
let mut vec = vec![1, 2]; vec.push(3); assert_eq!(vec, [1, 2, 3]);
fn place_back(&mut self) -> PlaceBack<T>
Returns a place for insertion at the back of the Vec
.
Using this method with placement syntax is equivalent to push
, but may be more efficient.
Examples
#![feature(collection_placement)] #![feature(placement_in_syntax)] let mut vec = vec![1, 2]; vec.place_back() <- 3; vec.place_back() <- 4; assert_eq!(&vec, &[1, 2, 3, 4]);
fn pop(&mut self) -> Option<T>
Removes the last element from a vector and returns it, or None
if it is empty.
Examples
let mut vec = vec![1, 2, 3]; assert_eq!(vec.pop(), Some(3)); assert_eq!(vec, [1, 2]);
fn append(&mut self, other: &mut Self)
1.4.0
Moves all the elements of other
into Self
, leaving other
empty.
Panics
Panics if the number of elements in the vector overflows a usize
.
Examples
let mut vec = vec![1, 2, 3]; let mut vec2 = vec![4, 5, 6]; vec.append(&mut vec2); assert_eq!(vec, [1, 2, 3, 4, 5, 6]); assert_eq!(vec2, []);
fn drain<R>(&mut self, range: R) -> Drain<T> where
R: RangeArgument<usize>,
1.6.0
R: RangeArgument<usize>,
Create a draining iterator that removes the specified range in the vector and yields the removed items.
Note 1: The element range is removed even if the iterator is only partially consumed or not consumed at all.
Note 2: It is unspecified how many elements are removed from the vector, if the Drain
value is leaked.
Panics
Panics if the starting point is greater than the end point or if the end point is greater than the length of the vector.
Examples
let mut v = vec![1, 2, 3]; let u: Vec<_> = v.drain(1..).collect(); assert_eq!(v, &[1]); assert_eq!(u, &[2, 3]); // A full range clears the vector v.drain(..); assert_eq!(v, &[]);
fn clear(&mut self)
Clears the vector, removing all values.
Note that this method has no effect on the allocated capacity of the vector.
Examples
let mut v = vec![1, 2, 3]; v.clear(); assert!(v.is_empty());
fn len(&self) -> usize
Returns the number of elements in the vector.
Examples
let a = vec![1, 2, 3]; assert_eq!(a.len(), 3);
fn is_empty(&self) -> bool
Returns true
if the vector contains no elements.
Examples
let mut v = Vec::new(); assert!(v.is_empty()); v.push(1); assert!(!v.is_empty());
fn split_off(&mut self, at: usize) -> Self
1.4.0
Splits the collection into two at the given index.
Returns a newly allocated Self
. self
contains elements [0, at)
, and the returned Self
contains elements [at, len)
.
Note that the capacity of self
does not change.
Panics
Panics if at > len
.
Examples
let mut vec = vec![1,2,3]; let vec2 = vec.split_off(1); assert_eq!(vec, [1]); assert_eq!(vec2, [2, 3]);
impl<T: Clone> Vec<T>
[src]
fn resize(&mut self, new_len: usize, value: T)
1.5.0
Resizes the Vec
in-place so that len()
is equal to new_len
.
If new_len
is greater than len()
, the Vec
is extended by the difference, with each additional slot filled with value
. If new_len
is less than len()
, the Vec
is simply truncated.
Examples
let mut vec = vec!["hello"]; vec.resize(3, "world"); assert_eq!(vec, ["hello", "world", "world"]); let mut vec = vec![1, 2, 3, 4]; vec.resize(2, 0); assert_eq!(vec, [1, 2]);
fn extend_from_slice(&mut self, other: &[T])
1.6.0
Clones and appends all elements in a slice to the Vec
.
Iterates over the slice other
, clones each element, and then appends it to this Vec
. The other
vector is traversed in-order.
Note that this function is same as extend
except that it is specialized to work with slices instead. If and when Rust gets specialization this function will likely be deprecated (but still available).
Examples
let mut vec = vec![1]; vec.extend_from_slice(&[2, 3, 4]); assert_eq!(vec, [1, 2, 3, 4]);
impl<T: PartialEq> Vec<T>
[src]
fn dedup(&mut self)
Removes consecutive repeated elements in the vector.
If the vector is sorted, this removes all duplicates.
Examples
let mut vec = vec![1, 2, 2, 3, 2]; vec.dedup(); assert_eq!(vec, [1, 2, 3, 2]);
fn remove_item(&mut self, item: &T) -> Option<T>
Removes the first instance of item
from the vector if the item exists.
Examples
let mut vec = vec![1, 2, 3, 1]; vec.remove_item(&1); assert_eq!(vec, vec![2, 3, 1]);
Trait Implementations
impl<T> From<BinaryHeap<T>> for Vec<T>
1.5.0
[src]
fn from(heap: BinaryHeap<T>) -> Vec<T>
Performs the conversion.
impl<T> Borrow<[T]> for Vec<T>
[src]
fn borrow(&self) -> &[T]
Immutably borrows from an owned value. Read more
impl<T> BorrowMut<[T]> for Vec<T>
[src]
fn borrow_mut(&mut self) -> &mut [T]
Mutably borrows from an owned value. Read more
impl From<String> for Vec<u8>
1.14.0
[src]
fn from(string: String) -> Vec<u8>
Performs the conversion.
impl<T: Clone> Clone for Vec<T>
[src]
fn clone(&self) -> Vec<T>
Returns a copy of the value. Read more
fn clone_from(&mut self, other: &Vec<T>)
Performs copy-assignment from source
. Read more
impl<T: Hash> Hash for Vec<T>
[src]
fn hash<H: Hasher>(&self, state: &mut H)
Feeds this value into the given [Hasher
]. Read more
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
1.3.0
H: Hasher,
Feeds a slice of this type into the given [Hasher
]. Read more
impl<T> Index<usize> for Vec<T>
[src]
type Output = T
The returned type after indexing
fn index(&self, index: usize) -> &T
The method for the indexing (container[index]
) operation
impl<T> IndexMut<usize> for Vec<T>
[src]
fn index_mut(&mut self, index: usize) -> &mut T
The method for the mutable indexing (container[index]
) operation
impl<T> Index<Range<usize>> for Vec<T>
[src]
type Output = [T]
The returned type after indexing
fn index(&self, index: Range<usize>) -> &[T]
The method for the indexing (container[index]
) operation
impl<T> Index<RangeTo<usize>> for Vec<T>
[src]
type Output = [T]
The returned type after indexing
fn index(&self, index: RangeTo<usize>) -> &[T]
The method for the indexing (container[index]
) operation
impl<T> Index<RangeFrom<usize>> for Vec<T>
[src]
type Output = [T]
The returned type after indexing
fn index(&self, index: RangeFrom<usize>) -> &[T]
The method for the indexing (container[index]
) operation
impl<T> Index<RangeFull> for Vec<T>
[src]
type Output = [T]
The returned type after indexing
fn index(&self, _index: RangeFull) -> &[T]
The method for the indexing (container[index]
) operation
impl<T> Index<RangeInclusive<usize>> for Vec<T>
[src]
type Output = [T]
The returned type after indexing
fn index(&self, index: RangeInclusive<usize>) -> &[T]
The method for the indexing (container[index]
) operation
impl<T> Index<RangeToInclusive<usize>> for Vec<T>
[src]
type Output = [T]
The returned type after indexing
fn index(&self, index: RangeToInclusive<usize>) -> &[T]
The method for the indexing (container[index]
) operation
impl<T> IndexMut<Range<usize>> for Vec<T>
[src]
fn index_mut(&mut self, index: Range<usize>) -> &mut [T]
The method for the mutable indexing (container[index]
) operation
impl<T> IndexMut<RangeTo<usize>> for Vec<T>
[src]
fn index_mut(&mut self, index: RangeTo<usize>) -> &mut [T]
The method for the mutable indexing (container[index]
) operation
impl<T> IndexMut<RangeFrom<usize>> for Vec<T>
[src]
fn index_mut(&mut self, index: RangeFrom<usize>) -> &mut [T]
The method for the mutable indexing (container[index]
) operation
impl<T> IndexMut<RangeFull> for Vec<T>
[src]
fn index_mut(&mut self, _index: RangeFull) -> &mut [T]
The method for the mutable indexing (container[index]
) operation
impl<T> IndexMut<RangeInclusive<usize>> for Vec<T>
[src]
fn index_mut(&mut self, index: RangeInclusive<usize>) -> &mut [T]
The method for the mutable indexing (container[index]
) operation
impl<T> IndexMut<RangeToInclusive<usize>> for Vec<T>
[src]
fn index_mut(&mut self, index: RangeToInclusive<usize>) -> &mut [T]
The method for the mutable indexing (container[index]
) operation
impl<T> Deref for Vec<T>
[src]
type Target = [T]
The resulting type after dereferencing
fn deref(&self) -> &[T]
The method called to dereference a value
impl<T> DerefMut for Vec<T>
[src]
fn deref_mut(&mut self) -> &mut [T]
The method called to mutably dereference a value
impl<T> FromIterator<T> for Vec<T>
[src]
fn from_iter<I: IntoIterator<Item = T>>(iter: I) -> Vec<T>
Creates a value from an iterator. Read more
impl<T> IntoIterator for Vec<T>
[src]
type Item = T
The type of the elements being iterated over.
type IntoIter = IntoIter<T>
Which kind of iterator are we turning this into?
fn into_iter(self) -> IntoIter<T>
Creates a consuming iterator, that is, one that moves each value out of the vector (from start to end). The vector cannot be used after calling this.
Examples
let v = vec!["a".to_string(), "b".to_string()]; for s in v.into_iter() { // s has type String, not &String println!("{}", s); }
impl<'a, T> IntoIterator for &'a Vec<T>
[src]
type Item = &'a T
The type of the elements being iterated over.
type IntoIter = Iter<'a, T>
Which kind of iterator are we turning this into?
fn into_iter(self) -> Iter<'a, T>
Creates an iterator from a value. Read more
impl<'a, T> IntoIterator for &'a mut Vec<T>
[src]
type Item = &'a mut T
The type of the elements being iterated over.
type IntoIter = IterMut<'a, T>
Which kind of iterator are we turning this into?
fn into_iter(self) -> IterMut<'a, T>
Creates an iterator from a value. Read more
impl<T> Extend<T> for Vec<T>
[src]
fn extend<I: IntoIterator<Item = T>>(&mut self, iter: I)
Extends a collection with the contents of an iterator. Read more
impl<'a, T: 'a + Copy> Extend<&'a T> for Vec<T>
1.2.0
[src]
fn extend<I: IntoIterator<Item = &'a T>>(&mut self, iter: I)
Extends a collection with the contents of an iterator. Read more
impl<'a, 'b, A: Sized, B> PartialEq<Vec<B>> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &Vec<B>) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &Vec<B>) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b mut [B]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b mut [B]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b mut [B]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 0]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 0]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 0]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 0]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 0]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 0]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 1]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 1]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 1]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 1]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 1]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 1]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 2]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 2]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 2]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 2]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 2]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 2]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 3]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 3]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 3]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 3]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 3]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 3]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 4]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 4]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 4]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 4]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 4]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 4]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 5]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 5]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 5]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 5]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 5]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 5]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 6]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 6]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 6]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 6]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 6]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 6]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 7]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 7]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 7]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 7]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 7]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 7]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 8]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 8]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 8]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 8]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 8]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 8]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 9]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 9]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 9]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 9]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 9]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 9]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 10]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 10]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 10]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 10]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 10]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 10]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 11]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 11]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 11]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 11]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 11]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 11]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 12]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 12]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 12]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 12]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 12]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 12]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 13]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 13]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 13]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 13]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 13]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 13]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 14]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 14]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 14]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 14]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 14]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 14]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 15]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 15]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 15]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 15]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 15]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 15]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 16]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 16]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 16]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 16]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 16]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 16]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 17]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 17]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 17]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 17]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 17]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 17]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 18]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 18]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 18]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 18]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 18]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 18]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 19]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 19]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 19]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 19]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 19]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 19]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 20]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 20]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 20]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 20]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 20]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 20]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 21]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 21]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 21]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 21]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 21]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 21]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 22]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 22]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 22]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 22]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 22]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 22]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 23]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 23]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 23]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 23]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 23]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 23]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 24]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 24]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 24]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 24]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 24]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 24]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 25]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 25]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 25]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 25]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 25]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 25]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 26]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 26]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 26]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 26]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 26]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 26]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 27]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 27]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 27]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 27]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 27]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 27]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 28]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 28]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 28]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 28]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 28]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 28]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 29]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 29]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 29]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 29]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 29]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 29]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 30]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 30]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 30]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 30]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 30]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 30]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 31]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 31]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 31]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 31]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 31]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 31]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<[B; 32]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &[B; 32]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &[B; 32]) -> bool
This method tests for !=
.
impl<'a, 'b, A: Sized, B> PartialEq<&'b [B; 32]> for Vec<A> where
A: PartialEq<B>,
[src]
A: PartialEq<B>,
fn eq(&self, other: &&'b [B; 32]) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &&'b [B; 32]) -> bool
This method tests for !=
.
impl<T: PartialOrd> PartialOrd for Vec<T>
[src]
Implements comparison of vectors, lexicographically.
fn partial_cmp(&self, other: &Vec<T>) -> Option<Ordering>
This method returns an ordering between self
and other
values if one exists. Read more
fn lt(&self, other: &Rhs) -> bool
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<T: Eq> Eq for Vec<T>
[src]
impl<T: Ord> Ord for Vec<T>
[src]
Implements ordering of vectors, lexicographically.
fn cmp(&self, other: &Vec<T>) -> Ordering
This method returns an Ordering
between self
and other
. Read more
impl<T> Drop for Vec<T>
[src]
fn drop(&mut self)
A method called when the value goes out of scope. Read more
impl<T> Default for Vec<T>
[src]
fn default() -> Vec<T>
Creates an empty Vec<T>
.
impl<T: Debug> Debug for Vec<T>
[src]
fn fmt(&self, f: &mut Formatter) -> Result
Formats the value using the given formatter.
impl<T> AsRef<Vec<T>> for Vec<T>
[src]
fn as_ref(&self) -> &Vec<T>
Performs the conversion.
impl<T> AsMut<Vec<T>> for Vec<T>
1.5.0
[src]
fn as_mut(&mut self) -> &mut Vec<T>
Performs the conversion.
impl<T> AsRef<[T]> for Vec<T>
[src]
fn as_ref(&self) -> &[T]
Performs the conversion.
impl<T> AsMut<[T]> for Vec<T>
1.5.0
[src]
fn as_mut(&mut self) -> &mut [T]
Performs the conversion.
impl<'a, T: Clone> From<&'a [T]> for Vec<T>
[src]
fn from(s: &'a [T]) -> Vec<T>
Performs the conversion.
impl<'a, T> From<Cow<'a, [T]>> for Vec<T> where
[T]: ToOwned<Owned = Vec<T>>,
1.14.0
[src]
[T]: ToOwned<Owned = Vec<T>>,
fn from(s: Cow<'a, [T]>) -> Vec<T>
Performs the conversion.
impl<T> From<Box<[T]>> for Vec<T>
1.17.0
[src]
fn from(s: Box<[T]>) -> Vec<T>
Performs the conversion.
impl<T> Into<Box<[T]>> for Vec<T>
1.17.0
[src]
fn into(self) -> Box<[T]>
Performs the conversion.
impl<'a> From<&'a str> for Vec<u8>
[src]
fn from(s: &'a str) -> Vec<u8>
Performs the conversion.
impl<T> From<VecDeque<T>> for Vec<T>
1.10.0
[src]
fn from(other: VecDeque<T>) -> Self
Performs the conversion.
© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/collections/vec/struct.Vec.html