Struct core::ops::RangeFull 1.0.0
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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]; 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
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impl Clone for RangeFull
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fn clone(&self) -> RangeFull
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Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more
impl PartialEq for RangeFull
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fn eq(&self, __arg_0: &RangeFull) -> bool
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This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &Rhs) -> bool
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This method tests for !=
.
impl Eq for RangeFull
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impl Hash for RangeFull
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fn hash<__H: Hasher>(&self, __arg_0: &mut __H)
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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[src]
Self: Sized,
Feeds a slice of this type into the given [Hasher
]. Read more
impl Debug for RangeFull
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fn fmt(&self, fmt: &mut Formatter) -> Result
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Formats the value using the given formatter. Read more
impl<T> SliceIndex<[T]> for RangeFull
1.15.0[src]
type Output = [T]
The output type returned by methods.
fn get(self, slice: &[T]) -> Option<&[T]>
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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]>
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Returns a mutable reference to the output at this location, if in bounds. Read more
unsafe fn get_unchecked(self, slice: &[T]) -> &[T]
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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]
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Returns a mutable reference to the output at this location, without performing any bounds checking. Read more
fn index(self, slice: &[T]) -> &[T]
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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]
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Returns a mutable reference to the output at this location, panicking if out of bounds. Read more
impl Index<RangeFull> for str
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Implements substring slicing with syntax &self[..]
.
Returns a slice of the whole string. This operation can never panic.
Equivalent to &self[0 .. len]
.
type Output = str
The returned type after indexing.
fn index(&self, _index: RangeFull) -> &str
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Performs the indexing (container[index]
) operation.
impl IndexMut<RangeFull> for str
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Implements mutable substring slicing with syntax &mut self[..]
.
Returns a mutable slice of the whole string. This operation can never panic.
Equivalent to &mut self[0 .. len]
.
fn index_mut(&mut self, _index: RangeFull) -> &mut str
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Performs the mutable indexing (container[index]
) operation.
impl SliceIndex<str> for RangeFull
1.20.0[src]
type Output = str
The output type returned by methods.
fn get(self, slice: &str) -> Option<&Self::Output>
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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>
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Returns a mutable reference to the output at this location, if in bounds. Read more
unsafe fn get_unchecked(self, slice: &str) -> &Self::Output
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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
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Returns a mutable reference to the output at this location, without performing any bounds checking. Read more
fn index(self, slice: &str) -> &Self::Output
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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
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Returns a mutable reference to the output at this location, panicking if out of bounds. Read more