pub struct RangeFull;new_range_api)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§
Source§impl Distribution<bool> for RangeFull
impl Distribution<bool> for RangeFull
Source§impl Distribution<i128> for RangeFull
impl Distribution<i128> for RangeFull
Source§impl Distribution<i16> for RangeFull
impl Distribution<i16> for RangeFull
Source§impl Distribution<i32> for RangeFull
impl Distribution<i32> for RangeFull
Source§impl Distribution<i64> for RangeFull
impl Distribution<i64> for RangeFull
Source§impl Distribution<i8> for RangeFull
impl Distribution<i8> for RangeFull
Source§impl Distribution<isize> for RangeFull
impl Distribution<isize> for RangeFull
Source§impl Distribution<u128> for RangeFull
impl Distribution<u128> for RangeFull
Source§impl Distribution<u16> for RangeFull
impl Distribution<u16> for RangeFull
Source§impl Distribution<u32> for RangeFull
impl Distribution<u32> for RangeFull
Source§impl Distribution<u64> for RangeFull
impl Distribution<u64> for RangeFull
Source§impl Distribution<u8> for RangeFull
impl Distribution<u8> for RangeFull
Source§impl Distribution<usize> for RangeFull
impl Distribution<usize> for RangeFull
Source§impl Index<RangeFull> for ByteString
impl Index<RangeFull> for ByteString
Source§impl Index<RangeFull> for UninitSlice
impl Index<RangeFull> for UninitSlice
Source§type Output = UninitSlice
type Output = UninitSlice
Source§impl IndexMut<RangeFull> for ByteString
impl IndexMut<RangeFull> for ByteString
Source§impl IndexMut<RangeFull> for UninitSlice
impl IndexMut<RangeFull> for UninitSlice
Source§impl<T> IntoBounds<T> for RangeFull
impl<T> IntoBounds<T> for RangeFull
Source§impl<I> IteratorIndex<I> for RangeFullwhere
I: Iterator,
impl<I> IteratorIndex<I> for RangeFullwhere
I: Iterator,
1.28.0 · Source§impl<T> RangeBounds<T> for RangeFullwhere
T: ?Sized,
impl<T> RangeBounds<T> for RangeFullwhere
T: ?Sized,
1.15.0 (const: unstable) · Source§impl<T> SliceIndex<[T]> for RangeFull
impl<T> SliceIndex<[T]> for RangeFull
Source§fn get(self, slice: &[T]) -> Option<&[T]>
fn get(self, slice: &[T]) -> Option<&[T]>
slice_index_methods)Source§fn get_mut(self, slice: &mut [T]) -> Option<&mut [T]>
fn get_mut(self, slice: &mut [T]) -> Option<&mut [T]>
slice_index_methods)Source§unsafe fn get_unchecked(self, slice: *const [T]) -> *const [T]
unsafe fn get_unchecked(self, slice: *const [T]) -> *const [T]
slice_index_methods)Source§unsafe fn get_unchecked_mut(self, slice: *mut [T]) -> *mut [T]
unsafe fn get_unchecked_mut(self, slice: *mut [T]) -> *mut [T]
slice_index_methods)Source§impl SliceIndex<ByteStr> for RangeFull
impl SliceIndex<ByteStr> for RangeFull
Source§fn get(
self,
slice: &ByteStr,
) -> Option<&<RangeFull as SliceIndex<ByteStr>>::Output>
fn get( self, slice: &ByteStr, ) -> Option<&<RangeFull as SliceIndex<ByteStr>>::Output>
slice_index_methods)Source§fn get_mut(
self,
slice: &mut ByteStr,
) -> Option<&mut <RangeFull as SliceIndex<ByteStr>>::Output>
fn get_mut( self, slice: &mut ByteStr, ) -> Option<&mut <RangeFull as SliceIndex<ByteStr>>::Output>
slice_index_methods)Source§unsafe fn get_unchecked(
self,
slice: *const ByteStr,
) -> *const <RangeFull as SliceIndex<ByteStr>>::Output
unsafe fn get_unchecked( self, slice: *const ByteStr, ) -> *const <RangeFull as SliceIndex<ByteStr>>::Output
slice_index_methods)Source§unsafe fn get_unchecked_mut(
self,
slice: *mut ByteStr,
) -> *mut <RangeFull as SliceIndex<ByteStr>>::Output
unsafe fn get_unchecked_mut( self, slice: *mut ByteStr, ) -> *mut <RangeFull as SliceIndex<ByteStr>>::Output
slice_index_methods)1.20.0 (const: unstable) · Source§impl SliceIndex<str> for RangeFull
Implements substring slicing with syntax &self[..] or &mut self[..].
impl SliceIndex<str> for RangeFull
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].
Source§fn get(self, slice: &str) -> Option<&<RangeFull as SliceIndex<str>>::Output>
fn get(self, slice: &str) -> Option<&<RangeFull as SliceIndex<str>>::Output>
slice_index_methods)Source§fn get_mut(
self,
slice: &mut str,
) -> Option<&mut <RangeFull as SliceIndex<str>>::Output>
fn get_mut( self, slice: &mut str, ) -> Option<&mut <RangeFull as SliceIndex<str>>::Output>
slice_index_methods)Source§unsafe fn get_unchecked(
self,
slice: *const str,
) -> *const <RangeFull as SliceIndex<str>>::Output
unsafe fn get_unchecked( self, slice: *const str, ) -> *const <RangeFull as SliceIndex<str>>::Output
slice_index_methods)Source§unsafe fn get_unchecked_mut(
self,
slice: *mut str,
) -> *mut <RangeFull as SliceIndex<str>>::Output
unsafe fn get_unchecked_mut( self, slice: *mut str, ) -> *mut <RangeFull as SliceIndex<str>>::Output
slice_index_methods)impl Copy for RangeFull
impl Eq for RangeFull
impl StructuralPartialEq for RangeFull
Auto Trait Implementations§
impl Freeze for RangeFull
impl RefUnwindSafe for RangeFull
impl Send for RangeFull
impl Sync for RangeFull
impl Unpin for RangeFull
impl UnwindSafe for RangeFull
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