#[lang = "RangeFull"]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.
The ..
syntax is a RangeFull
:
assert_eq!((..), std::ops::RangeFull);
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 .. { // ... }
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]); // 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 ]);
impl Clone for RangeFull
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impl Copy for RangeFull
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impl Debug for RangeFull
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impl Default for RangeFull
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impl Eq for RangeFull
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impl Hash for RangeFull
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fn hash<__H>(&self, state: &mut __H) where
__H: Hasher,
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fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
[src]1.3.0
impl Index<RangeFull> for String
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impl Index<RangeFull> for CString
[src]1.7.0
type Output = CStr
The returned type after indexing.
fn index(&self, _index: RangeFull) -> &CStr
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impl Index<RangeFull> for OsString
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type Output = OsStr
The returned type after indexing.
fn index(&self, _index: RangeFull) -> &OsStr
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impl IndexMut<RangeFull> for String
[src]1.3.0
impl IndexMut<RangeFull> for OsString
[src]1.44.0
impl PartialEq<RangeFull> for RangeFull
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impl<T> RangeBounds<T> for RangeFull where
T: ?Sized,
[src]1.28.0
fn start_bound(&self) -> Bound<&T>
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fn end_bound(&self) -> Bound<&T>
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fn contains<U>(&self, item: &U) -> bool where
T: PartialOrd<U>,
U: PartialOrd<T> + ?Sized,
[src]1.35.0
impl<T> SliceIndex<[T]> for RangeFull
[src]1.15.0
type Output = [T]
The output type returned by methods.
fn get(self, slice: &[T]) -> Option<&[T]>
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fn get_mut(self, slice: &mut [T]) -> Option<&mut [T]>
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unsafe fn get_unchecked(self, slice: *const [T]) -> *const [T]
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unsafe fn get_unchecked_mut(self, slice: *mut [T]) -> *mut [T]
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fn index(self, slice: &[T]) -> &[T]ⓘNotable traits for &'_ [u8]
impl<'_> Read for &'_ [u8]
impl<'_> Write for &'_ mut [u8]
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fn index_mut(self, slice: &mut [T]) -> &mut [T]ⓘNotable traits for &'_ [u8]
impl<'_> Read for &'_ [u8]
impl<'_> Write for &'_ mut [u8]
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impl SliceIndex<str> for RangeFull
[src]1.20.0
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.
fn get(self, slice: &str) -> Option<&<RangeFull as SliceIndex<str>>::Output>
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fn get_mut(
self,
slice: &mut str
) -> Option<&mut <RangeFull as SliceIndex<str>>::Output>
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unsafe fn get_unchecked(
self,
slice: *const str
) -> *const <RangeFull as SliceIndex<str>>::Output
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unsafe fn get_unchecked_mut(
self,
slice: *mut str
) -> *mut <RangeFull as SliceIndex<str>>::Output
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fn index(self, slice: &str) -> &<RangeFull as SliceIndex<str>>::Output
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fn index_mut(
self,
slice: &mut str
) -> &mut <RangeFull as SliceIndex<str>>::Output
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impl StructuralEq for RangeFull
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impl StructuralPartialEq for RangeFull
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impl RefUnwindSafe for RangeFull
impl Send for RangeFull
impl Sync for RangeFull
impl Unpin for RangeFull
impl UnwindSafe for RangeFull
impl<T> Any for T where
T: 'static + ?Sized,
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impl<T> Borrow<T> for T where
T: ?Sized,
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fn borrow(&self) -> &TⓘNotable traits for &'_ mut F
impl<'_, F> Future for &'_ mut F where
F: Unpin + Future + ?Sized,
type Output = <F as Future>::Output;
impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized,
type Item = <I as Iterator>::Item;
impl<R: Read + ?Sized, '_> Read for &'_ mut R
impl<W: Write + ?Sized, '_> Write for &'_ mut W
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impl<T> BorrowMut<T> for T where
T: ?Sized,
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fn borrow_mut(&mut self) -> &mut TⓘNotable traits for &'_ mut F
impl<'_, F> Future for &'_ mut F where
F: Unpin + Future + ?Sized,
type Output = <F as Future>::Output;
impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized,
type Item = <I as Iterator>::Item;
impl<R: Read + ?Sized, '_> Read for &'_ mut R
impl<W: Write + ?Sized, '_> Write for &'_ mut W
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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impl<T> ToOwned for T where
T: Clone,
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type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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© 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/std/ops/struct.RangeFull.html