pub struct RangeFull;Expand description
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);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]); // 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 ]);Trait Implementations
RangeFull is the identity function.
pub fn get(
self,
slice: <RangeFull as BitSliceIndex<'a, O, T>>::Immut
) -> Option<<RangeFull as BitSliceIndex<'a, O, T>>::Immut>
pub fn get(
self,
slice: <RangeFull as BitSliceIndex<'a, O, T>>::Immut
) -> Option<<RangeFull as BitSliceIndex<'a, O, T>>::Immut>
Returns a shared reference to the output at this location, if in bounds. Read more
pub fn get_mut(
self,
slice: <RangeFull as BitSliceIndex<'a, O, T>>::Mut
) -> Option<<RangeFull as BitSliceIndex<'a, O, T>>::Mut>
pub fn get_mut(
self,
slice: <RangeFull as BitSliceIndex<'a, O, T>>::Mut
) -> Option<<RangeFull as BitSliceIndex<'a, O, T>>::Mut>
Returns a mutable reference to the output at this location, if in bounds. Read more
pub unsafe fn get_unchecked(
self,
slice: <RangeFull as BitSliceIndex<'a, O, T>>::Immut
) -> <RangeFull as BitSliceIndex<'a, O, T>>::Immut
pub unsafe fn get_unchecked(
self,
slice: <RangeFull as BitSliceIndex<'a, O, T>>::Immut
) -> <RangeFull as BitSliceIndex<'a, O, T>>::Immut
Returns a shared reference to the output at this location, without performing any bounds checking. Calling this method with an out-of-bounds index is undefined behavior even if the resulting reference is not used. Read more
pub unsafe fn get_unchecked_mut(
self,
slice: <RangeFull as BitSliceIndex<'a, O, T>>::Mut
) -> <RangeFull as BitSliceIndex<'a, O, T>>::Mut
pub unsafe fn get_unchecked_mut(
self,
slice: <RangeFull as BitSliceIndex<'a, O, T>>::Mut
) -> <RangeFull as BitSliceIndex<'a, O, T>>::Mut
Returns a mutable reference to the output at this location, without performing any bounds checking. Calling this method with an out-of-bounds index is undefined behavior even if the resulting reference is not used. Read more
pub fn index(
self,
slice: <RangeFull as BitSliceIndex<'a, O, T>>::Immut
) -> <RangeFull as BitSliceIndex<'a, O, T>>::Immut
pub fn index(
self,
slice: <RangeFull as BitSliceIndex<'a, O, T>>::Immut
) -> <RangeFull as BitSliceIndex<'a, O, T>>::Immut
Returns a shared reference to the output at this location, panicking if out of bounds. Read more
pub fn index_mut(
self,
slice: <RangeFull as BitSliceIndex<'a, O, T>>::Mut
) -> <RangeFull as BitSliceIndex<'a, O, T>>::Mut
pub fn index_mut(
self,
slice: <RangeFull as BitSliceIndex<'a, O, T>>::Mut
) -> <RangeFull as BitSliceIndex<'a, O, T>>::Mut
Returns a mutable reference to the output at this location, panicking if out of bounds. Read more
Start index bound. Read more
1.35.0 · sourcefn contains<U>(&self, item: &U) -> bool where
T: PartialOrd<U>,
U: PartialOrd<T> + ?Sized,
fn contains<U>(&self, item: &U) -> bool where
T: PartialOrd<U>,
U: PartialOrd<T> + ?Sized,
Returns true if item is contained in the range. Read more
slice_index_methods)Returns a shared reference to the output at this location, if in bounds. Read more
slice_index_methods)Returns a mutable reference to the output at this location, if in bounds. Read more
slice_index_methods)Returns a shared reference to the output at this location, without
performing any bounds checking.
Calling this method with an out-of-bounds index or a dangling slice pointer
is undefined behavior even if the resulting reference is not used. Read more
slice_index_methods)Returns a mutable reference to the output at this location, without
performing any bounds checking.
Calling this method with an out-of-bounds index or a dangling slice pointer
is undefined behavior even if the resulting reference is not used. Read more
slice_index_methods)Returns a shared reference to the output at this location, panicking if out of bounds. Read more
slice_index_methods)Returns a mutable reference to the output at this location, panicking if out of bounds. Read more
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].
slice_index_methods)Returns a shared reference to the output at this location, if in bounds. Read more
slice_index_methods)Returns a mutable reference to the output at this location, if in bounds. Read more
pub unsafe fn get_unchecked(
self,
slice: *const str
) -> *const <RangeFull as SliceIndex<str>>::Output
pub unsafe fn get_unchecked(
self,
slice: *const str
) -> *const <RangeFull as SliceIndex<str>>::Output
slice_index_methods)Returns a shared reference to the output at this location, without
performing any bounds checking.
Calling this method with an out-of-bounds index or a dangling slice pointer
is undefined behavior even if the resulting reference is not used. Read more
pub unsafe fn get_unchecked_mut(
self,
slice: *mut str
) -> *mut <RangeFull as SliceIndex<str>>::Output
pub unsafe fn get_unchecked_mut(
self,
slice: *mut str
) -> *mut <RangeFull as SliceIndex<str>>::Output
slice_index_methods)Returns a mutable reference to the output at this location, without
performing any bounds checking.
Calling this method with an out-of-bounds index or a dangling slice pointer
is undefined behavior even if the resulting reference is not used. Read more
slice_index_methods)Returns a shared reference to the output at this location, panicking if out of bounds. Read more
Auto Trait Implementations
impl RefUnwindSafe for RangeFull
impl UnwindSafe for RangeFull
Blanket Implementations
Mutably borrows from an owned value. Read more
Causes self to use its Binary implementation when Debug-formatted.
Causes self to use its Display implementation when
Debug-formatted. Read more
Causes self to use its LowerExp implementation when
Debug-formatted. Read more
Causes self to use its LowerHex implementation when
Debug-formatted. Read more
Causes self to use its Octal implementation when Debug-formatted.
Causes self to use its Pointer implementation when
Debug-formatted. Read more
Causes self to use its UpperExp implementation when
Debug-formatted. Read more
Causes self to use its UpperHex implementation when
Debug-formatted. Read more
Pipes by value. This is generally the method you want to use. Read more
Borrows self and passes that borrow into the pipe function. Read more
Mutably borrows self and passes that borrow into the pipe function. Read more
Borrows self, then passes self.borrow() into the pipe function. Read more
Mutably borrows self, then passes self.borrow_mut() into the pipe
function. Read more
Borrows self, then passes self.as_ref() into the pipe function.
Mutably borrows self, then passes self.as_mut() into the pipe
function. Read more
Borrows self, then passes self.deref() into the pipe function.
fn pipe_as_ref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
Self: AsRef<T>,
T: 'a,
R: 'a,
fn pipe_as_ref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
Self: AsRef<T>,
T: 'a,
R: 'a,
Pipes a trait borrow into a function that cannot normally be called in suffix position. Read more
fn pipe_borrow<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
Self: Borrow<T>,
T: 'a,
R: 'a,
fn pipe_borrow<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
Self: Borrow<T>,
T: 'a,
R: 'a,
Pipes a trait borrow into a function that cannot normally be called in suffix position. Read more
fn pipe_deref<'a, R>(&'a self, func: impl FnOnce(&'a Self::Target) -> R) -> R where
Self: Deref,
R: 'a,
fn pipe_deref<'a, R>(&'a self, func: impl FnOnce(&'a Self::Target) -> R) -> R where
Self: Deref,
R: 'a,
Pipes a dereference into a function that cannot normally be called in suffix position. Read more
Pipes a reference into a function that cannot ordinarily be called in suffix position. Read more
Immutable access to the Borrow<B> of a value. Read more
Mutable access to the BorrowMut<B> of a value. Read more
Immutable access to the AsRef<R> view of a value. Read more
Mutable access to the AsMut<R> view of a value. Read more
Immutable access to the Deref::Target of a value. Read more
Mutable access to the Deref::Target of a value. Read more
Calls .tap() only in debug builds, and is erased in release builds.
Calls .tap_mut() only in debug builds, and is erased in release
builds. Read more
Calls .tap_borrow() only in debug builds, and is erased in release
builds. Read more
Calls .tap_borrow_mut() only in debug builds, and is erased in release
builds. Read more
Calls .tap_ref() only in debug builds, and is erased in release
builds. Read more
Calls .tap_ref_mut() only in debug builds, and is erased in release
builds. Read more
Calls .tap_deref() only in debug builds, and is erased in release
builds. Read more
Provides immutable access to the reference for inspection.
Calls tap_ref in debug builds, and does nothing in release builds.
Provides mutable access to the reference for modification.
Calls tap_ref_mut in debug builds, and does nothing in release builds.
Provides immutable access to the borrow for inspection. Read more
Calls tap_borrow in debug builds, and does nothing in release builds.
fn tap_borrow_mut<F, R>(self, func: F) -> Self where
Self: BorrowMut<T>,
F: FnOnce(&mut T) -> R,
fn tap_borrow_mut<F, R>(self, func: F) -> Self where
Self: BorrowMut<T>,
F: FnOnce(&mut T) -> R,
Provides mutable access to the borrow for modification.
Immutably dereferences self for inspection.
fn tap_deref_dbg<F, R>(self, func: F) -> Self where
Self: Deref,
F: FnOnce(&Self::Target) -> R,
fn tap_deref_dbg<F, R>(self, func: F) -> Self where
Self: Deref,
F: FnOnce(&Self::Target) -> R,
Calls tap_deref in debug builds, and does nothing in release builds.
fn tap_deref_mut<F, R>(self, func: F) -> Self where
Self: DerefMut,
F: FnOnce(&mut Self::Target) -> R,
fn tap_deref_mut<F, R>(self, func: F) -> Self where
Self: DerefMut,
F: FnOnce(&mut Self::Target) -> R,
Mutably dereferences self for modification.