Struct core::ops::RangeFull 1.0.0[−][src]
pub struct RangeFull;
An unbounded range (..).
RangeFull is primarily used as a slicing index, its shorthand is ...
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, 4]; assert_eq!(arr[ .. ], [0, 1, 2, 3, 4]); // This is the `RangeFull` assert_eq!(arr[ .. 3], [0, 1, 2 ]); assert_eq!(arr[ ..=3], [0, 1, 2, 3 ]); assert_eq!(arr[1.. ], [ 1, 2, 3, 4]); assert_eq!(arr[1.. 3], [ 1, 2 ]); assert_eq!(arr[1..=3], [ 1, 2, 3 ]);Run
Trait Implementations
impl Clone for RangeFull[src]
impl Clone for RangeFull[src]fn clone(&self) -> RangeFull[src]
fn clone_from(&mut self, source: &Self)[src]
impl<T: ?Sized> RangeBounds<T> for RangeFull1.28.0[src]
impl<T: ?Sized> RangeBounds<T> for RangeFull1.28.0[src]fn start_bound(&self) -> Bound<&T>[src]
fn end_bound(&self) -> Bound<&T>[src]
fn contains<U: ?Sized>(&self, item: &U) -> bool where
T: PartialOrd<U>,
U: PartialOrd<T>, 1.35.0[src]
T: PartialOrd<U>,
U: PartialOrd<T>,
impl<T> SliceIndex<[T]> for RangeFull1.15.0[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]>[src]
fn get_mut(self, slice: &mut [T]) -> Option<&mut [T]>[src]
unsafe fn get_unchecked(self, slice: *const [T]) -> *const [T][src]
unsafe fn get_unchecked_mut(self, slice: *mut [T]) -> *mut [T][src]
fn index(self, slice: &[T]) -> &[T][src]
fn index_mut(self, slice: &mut [T]) -> &mut [T][src]
impl SliceIndex<str> for RangeFull1.20.0[src]
impl SliceIndex<str> for RangeFull1.20.0[src]Implements substring slicing with syntax &self[..] or &mut self[..].
Returns a slice of the whole string, i.e., returns &self or &mut self. Equivalent to &self[0 .. len] or &mut self[0 .. len]. Unlike
other indexing operations, this can never panic.
This operation is O(1).
Prior to 1.20.0, these indexing operations were still supported by
direct implementation of Index and IndexMut.
Equivalent to &self[0 .. len] or &mut self[0 .. len].
type Output = str
The output type returned by methods.