Struct core::ops::RangeFull 1.0.0
[−]
[src]
pub struct RangeFull;
An unbounded range. Use .. (two dots) for its shorthand.
Its primary use case is slicing index. It cannot serve as an iterator because it doesn't have a starting point.
Examples
The .. syntax is a RangeFull:
assert_eq!((..), std::ops::RangeFull);Run
It does not have an IntoIterator implementation, so you can't use it in a
for loop directly. This won't compile:
for i in .. { // ... }Run
Used as a slicing index, RangeFull produces the full array as a slice.
let arr = [0, 1, 2, 3]; assert_eq!(arr[ .. ], [0,1,2,3]); // RangeFull assert_eq!(arr[ ..3], [0,1,2 ]); assert_eq!(arr[1.. ], [ 1,2,3]); assert_eq!(arr[1..3], [ 1,2 ]);Run
Trait Implementations
impl Copy for RangeFull[src]
impl Clone for RangeFull[src]
fn clone(&self) -> RangeFull
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source. Read more
impl PartialEq for RangeFull[src]
fn eq(&self, __arg_0: &RangeFull) -> bool
This method tests for self and other values to be equal, and is used by ==. Read more
fn ne(&self, other: &Rhs) -> bool
This method tests for !=.
impl Eq for RangeFull[src]
impl Hash for RangeFull[src]
fn hash<__H: Hasher>(&self, __arg_0: &mut __H)
Feeds this value into the given [Hasher]. Read more
fn hash_slice<H: Hasher>(data: &[Self], state: &mut H) where
Self: Sized, 1.3.0
Self: Sized,
Feeds a slice of this type into the given [Hasher]. Read more
impl Debug for RangeFull[src]
impl<T> SliceIndex<[T]> for RangeFull1.15.0[src]
type Output = [T]
The output type returned by methods.
fn get(self, slice: &[T]) -> Option<&[T]>
Returns a shared reference to the output at this location, if in bounds. Read more
fn get_mut(self, slice: &mut [T]) -> Option<&mut [T]>
Returns a mutable reference to the output at this location, if in bounds. Read more
unsafe fn get_unchecked(self, slice: &[T]) -> &[T]
Returns a shared reference to the output at this location, without performing any bounds checking. Read more
unsafe fn get_unchecked_mut(self, slice: &mut [T]) -> &mut [T]
Returns a mutable reference to the output at this location, without performing any bounds checking. Read more
fn index(self, slice: &[T]) -> &[T]
Returns a shared reference to the output at this location, panicking if out of bounds. Read more
fn index_mut(self, slice: &mut [T]) -> &mut [T]
Returns a mutable reference to the output at this location, panicking if out of bounds. Read more
impl SliceIndex<str> for RangeFull[src]
type Output = str
The output type returned by methods.
fn get(self, slice: &str) -> Option<&Self::Output>
Returns a shared reference to the output at this location, if in bounds. Read more
fn get_mut(self, slice: &mut str) -> Option<&mut Self::Output>
Returns a mutable reference to the output at this location, if in bounds. Read more
unsafe fn get_unchecked(self, slice: &str) -> &Self::Output
Returns a shared reference to the output at this location, without performing any bounds checking. Read more
unsafe fn get_unchecked_mut(self, slice: &mut str) -> &mut Self::Output
Returns a mutable reference to the output at this location, without performing any bounds checking. Read more
fn index(self, slice: &str) -> &Self::Output
Returns a shared reference to the output at this location, panicking if out of bounds. Read more
fn index_mut(self, slice: &mut str) -> &mut Self::Output
Returns a mutable reference to the output at this location, panicking if out of bounds. Read more