Struct scale_info::prelude::ops::RangeFull

1.0.0 · source ·
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§

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impl<'a, T, O> BitSliceIndex<'a, T, O> for RangeFull
where T: BitStore, O: BitOrder,

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type Immut = &'a BitSlice<T, O>

The output type of immutable access.
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type Mut = &'a mut BitSlice<T, O>

The output type of mutable access.
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fn get( self, bits: <RangeFull as BitSliceIndex<'a, T, O>>::Immut, ) -> Option<<RangeFull as BitSliceIndex<'a, T, O>>::Immut>

Immutably indexes into a bit-slice, returning None if self is out of bounds. Read more
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fn get_mut( self, bits: <RangeFull as BitSliceIndex<'a, T, O>>::Mut, ) -> Option<<RangeFull as BitSliceIndex<'a, T, O>>::Mut>

Mutably indexes into a bit-slice, returning None if self is out of bounds. Read more
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unsafe fn get_unchecked( self, bits: <RangeFull as BitSliceIndex<'a, T, O>>::Immut, ) -> <RangeFull as BitSliceIndex<'a, T, O>>::Immut

Immutably indexes into a bit-slice without doing any bounds checking. Read more
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unsafe fn get_unchecked_mut( self, bits: <RangeFull as BitSliceIndex<'a, T, O>>::Mut, ) -> <RangeFull as BitSliceIndex<'a, T, O>>::Mut

Mutably indexes into a bit-slice without doing any bounds checking. Read more
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fn index( self, bits: <RangeFull as BitSliceIndex<'a, T, O>>::Immut, ) -> <RangeFull as BitSliceIndex<'a, T, O>>::Immut

Immutably indexes into a bit-slice, panicking if self is out of bounds. Read more
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fn index_mut( self, bits: <RangeFull as BitSliceIndex<'a, T, O>>::Mut, ) -> <RangeFull as BitSliceIndex<'a, T, O>>::Mut

Mutably indexes into a bit-slice, panicking if self is out of bounds. Read more
1.0.0 · source§

impl Clone for RangeFull

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fn clone(&self) -> RangeFull

Returns a copy of the value. Read more
1.0.0 · source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
1.0.0 · source§

impl Debug for RangeFull

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fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
1.0.0 · source§

impl Default for RangeFull

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fn default() -> RangeFull

Returns the “default value” for a type. Read more
1.0.0 · source§

impl Hash for RangeFull

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fn hash<__H>(&self, state: &mut __H)
where __H: Hasher,

Feeds this value into the given Hasher. Read more
1.3.0 · source§

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl<T, O> Index<RangeFull> for BitSlice<T, O>
where O: BitOrder, T: BitStore,

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type Output = BitSlice<T, O>

The returned type after indexing.
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fn index( &self, index: RangeFull, ) -> &<BitSlice<T, O> as Index<RangeFull>>::Output

Performs the indexing (container[index]) operation. Read more
1.7.0 · source§

impl Index<RangeFull> for CString

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type Output = CStr

The returned type after indexing.
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fn index(&self, _index: RangeFull) -> &CStr

Performs the indexing (container[index]) operation. Read more
1.0.0 · source§

impl Index<RangeFull> for OsString

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type Output = OsStr

The returned type after indexing.
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fn index(&self, _index: RangeFull) -> &OsStr

Performs the indexing (container[index]) operation. Read more
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impl Index<RangeFull> for UninitSlice

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type Output = UninitSlice

The returned type after indexing.
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fn index(&self, index: RangeFull) -> &UninitSlice

Performs the indexing (container[index]) operation. Read more
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impl<T, O> IndexMut<RangeFull> for BitSlice<T, O>
where O: BitOrder, T: BitStore,

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fn index_mut( &mut self, index: RangeFull, ) -> &mut <BitSlice<T, O> as Index<RangeFull>>::Output

Performs the mutable indexing (container[index]) operation. Read more
1.44.0 · source§

impl IndexMut<RangeFull> for OsString

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fn index_mut(&mut self, _index: RangeFull) -> &mut OsStr

Performs the mutable indexing (container[index]) operation. Read more
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impl IndexMut<RangeFull> for UninitSlice

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fn index_mut(&mut self, index: RangeFull) -> &mut UninitSlice

Performs the mutable indexing (container[index]) operation. Read more
1.0.0 · source§

impl PartialEq for RangeFull

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fn eq(&self, other: &RangeFull) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
1.28.0 · source§

impl<T> RangeBounds<T> for RangeFull
where T: ?Sized,

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fn start_bound(&self) -> Bound<&T>

Start index bound. Read more
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fn end_bound(&self) -> Bound<&T>

End index bound. Read more
1.35.0 · source§

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
1.15.0 (const: unstable) · source§

impl<T> SliceIndex<[T]> for RangeFull

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type Output = [T]

The output type returned by methods.
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fn get(self, slice: &[T]) -> Option<&[T]>

🔬This is a nightly-only experimental API. (slice_index_methods)
Returns a shared reference to the output at this location, if in bounds.
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fn get_mut(self, slice: &mut [T]) -> Option<&mut [T]>

🔬This is a nightly-only experimental API. (slice_index_methods)
Returns a mutable reference to the output at this location, if in bounds.
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unsafe fn get_unchecked(self, slice: *const [T]) -> *const [T]

🔬This is a nightly-only experimental API. (slice_index_methods)
Returns a pointer 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 pointer is not used.
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unsafe fn get_unchecked_mut(self, slice: *mut [T]) -> *mut [T]

🔬This is a nightly-only experimental API. (slice_index_methods)
Returns a mutable pointer 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 pointer is not used.
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fn index(self, slice: &[T]) -> &[T]

🔬This is a nightly-only experimental API. (slice_index_methods)
Returns a shared reference to the output at this location, panicking if out of bounds.
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fn index_mut(self, slice: &mut [T]) -> &mut [T]

🔬This is a nightly-only experimental API. (slice_index_methods)
Returns a mutable reference to the output at this location, panicking if out of bounds.
1.20.0 (const: unstable) · source§

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].

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type Output = str

The output type returned by methods.
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fn get(self, slice: &str) -> Option<&<RangeFull as SliceIndex<str>>::Output>

🔬This is a nightly-only experimental API. (slice_index_methods)
Returns a shared reference to the output at this location, if in bounds.
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fn get_mut( self, slice: &mut str, ) -> Option<&mut <RangeFull as SliceIndex<str>>::Output>

🔬This is a nightly-only experimental API. (slice_index_methods)
Returns a mutable reference to the output at this location, if in bounds.
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unsafe fn get_unchecked( self, slice: *const str, ) -> *const <RangeFull as SliceIndex<str>>::Output

🔬This is a nightly-only experimental API. (slice_index_methods)
Returns a pointer 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 pointer is not used.
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unsafe fn get_unchecked_mut( self, slice: *mut str, ) -> *mut <RangeFull as SliceIndex<str>>::Output

🔬This is a nightly-only experimental API. (slice_index_methods)
Returns a mutable pointer 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 pointer is not used.
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fn index(self, slice: &str) -> &<RangeFull as SliceIndex<str>>::Output

🔬This is a nightly-only experimental API. (slice_index_methods)
Returns a shared reference to the output at this location, panicking if out of bounds.
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fn index_mut( self, slice: &mut str, ) -> &mut <RangeFull as SliceIndex<str>>::Output

🔬This is a nightly-only experimental API. (slice_index_methods)
Returns a mutable reference to the output at this location, panicking if out of bounds.
1.0.0 · source§

impl Copy for RangeFull

1.0.0 · source§

impl Eq for RangeFull

1.0.0 · source§

impl StructuralPartialEq for RangeFull

Auto Trait Implementations§

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where T: 'static + ?Sized,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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default unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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where Self: Binary,

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where Self: Display,

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where Self: LowerExp,

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where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.
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where Self: Octal,

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where Self: Pointer,

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where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.
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where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.
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where &'a Self: for<'a> IntoIterator,

Formats each item in a sequence. Read more
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Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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Normalizes a range-like type to a canonical half-open Range. Read more
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where R2: RangeExt<usize>,

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where R2: RangeExt<usize>,

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