References, both shared and mutable.
A reference represents a borrow of some owned value. You can get one by using the & or &mut operators on a value, or by using a ref or ref mut pattern.
For those familiar with pointers, a reference is just a pointer that is assumed to not be null. In fact, Option<&T> has the same memory representation as a nullable pointer, and can be passed across FFI boundaries as such.
In most cases, references can be used much like the original value. Field access, method calling, and indexing work the same (save for mutability rules, of course). In addition, the comparison operators transparently defer to the referent's implementation, allowing references to be compared the same as owned values.
References have a lifetime attached to them, which represents the scope for which the borrow is valid. A lifetime is said to "outlive" another one if its representative scope is as long or longer than the other. The 'static lifetime is the longest lifetime, which represents the total life of the program. For example, string literals have a 'static lifetime because the text data is embedded into the binary of the program, rather than in an allocation that needs to be dynamically managed.
&mut T references can be freely coerced into &T references with the same referent type, and references with longer lifetimes can be freely coerced into references with shorter ones.
For more information on how to use references, see the book's section on "References and Borrowing".
The following traits are implemented for all &T, regardless of the type of its referent:
CopyClone (Note that this will not defer to T's Clone implementation if it exists!)DerefBorrowPointer&mut T references get all of the above except Copy and Clone (to prevent creating multiple simultaneous mutable borrows), plus the following, regardless of the type of its referent:
The following traits are implemented on &T references if the underlying T also implements that trait:
std::fmt except Pointer and fmt::Write
PartialOrdOrdPartialEqEqAsRefFn (in addition, &T references get FnMut and FnOnce if T: Fn)HashToSocketAddrs&mut T references get all of the above except ToSocketAddrs, plus the following, if T implements that trait:
AsMutFnMut (in addition, &mut T references get FnOnce if T: FnMut)fmt::WriteIteratorDoubleEndedIteratorExactSizeIteratorFusedIteratorTrustedLenSend (note that &T references only get Send if T: Sync)io::WriteReadSeekBufReadNote that due to method call deref coercion, simply calling a trait method will act like they work on references as well as they do on owned values! The implementations described here are meant for generic contexts, where the final type T is a type parameter or otherwise not locally known.
impl<'a, 'b, A, B> PartialOrd<&'b B> for &'a A where
A: PartialOrd<B> + ?Sized,
B: ?Sized,
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fn partial_cmp(&self, other: &&'b B) -> Option<Ordering>
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This method returns an ordering between self and other values if one exists. Read more
fn lt(&self, other: &&'b B) -> bool
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This method tests less than (for self and other) and is used by the < operator. Read more
fn le(&self, other: &&'b B) -> bool
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This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
fn ge(&self, other: &&'b B) -> bool
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This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
fn gt(&self, other: &&'b B) -> bool
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This method tests greater than (for self and other) and is used by the > operator. Read more
impl<'a, 'b, A, B> PartialOrd<&'b mut B> for &'a mut A where
A: PartialOrd<B> + ?Sized,
B: ?Sized,
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fn partial_cmp(&self, other: &&'b mut B) -> Option<Ordering>
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This method returns an ordering between self and other values if one exists. Read more
fn lt(&self, other: &&'b mut B) -> bool
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This method tests less than (for self and other) and is used by the < operator. Read more
fn le(&self, other: &&'b mut B) -> bool
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This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
fn ge(&self, other: &&'b mut B) -> bool
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This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
fn gt(&self, other: &&'b mut B) -> bool
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This method tests greater than (for self and other) and is used by the > operator. Read more
impl<'a, T> Deref for &'a T where
T: ?Sized,
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type Target = TThe resulting type after dereferencing.
fn deref(&self) -> &T
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Dereferences the value.
impl<'a, T> Deref for &'a mut T where
T: ?Sized,
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type Target = TThe resulting type after dereferencing.
fn deref(&self) -> &T
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Dereferences the value.
impl<'a, W> Write for &'a mut W where
W: Write + ?Sized,
fn write_str(&mut self, s: &str) -> Result<(), Error>
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Writes a slice of bytes into this writer, returning whether the write succeeded. Read more
fn write_char(&mut self, c: char) -> Result<(), Error>
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Writes a [char] into this writer, returning whether the write succeeded. Read more
fn write_fmt(&mut self, args: Arguments) -> Result<(), Error>
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Glue for usage of the [write!] macro with implementors of this trait. Read more
impl<'a, A> Eq for &'a mut A where
A: Eq + ?Sized,
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impl<'a, A> Eq for &'a A where
A: Eq + ?Sized,
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impl<'a, T, U> AsRef<U> for &'a mut T where
T: AsRef<U> + ?Sized,
U: ?Sized,
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fn as_ref(&self) -> &U
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Performs the conversion.
impl<'a, T, U> AsRef<U> for &'a T where
T: AsRef<U> + ?Sized,
U: ?Sized,
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fn as_ref(&self) -> &U
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Performs the conversion.
impl<'a, A, F> FnMut<A> for &'a F where
F: Fn<A> + ?Sized,
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extern "rust-call" fn call_mut(&mut self, args: A) -> <F as FnOnce<A>>::Output
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Performs the call operation.
impl<'a, A, F> FnMut<A> for &'a mut F where
F: FnMut<A> + ?Sized,
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extern "rust-call" fn call_mut(&mut self, args: A) -> <F as FnOnce<A>>::Output
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Performs the call operation.
impl<'a, T> Hash for &'a mut T where
T: Hash + ?Sized,
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fn hash<H>(&self, state: &mut H) where
H: Hasher,
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Feeds this value into the given [Hasher]. Read more
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
Feeds a slice of this type into the given [Hasher]. Read more
impl<'a, T> Hash for &'a T where
T: Hash + ?Sized,
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fn hash<H>(&self, state: &mut H) where
H: Hasher,
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Feeds this value into the given [Hasher]. Read more
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
Feeds a slice of this type into the given [Hasher]. Read more
impl<'a, T> Borrow<T> for &'a mut T where
T: ?Sized,
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fn borrow(&self) -> &T
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Immutably borrows from an owned value. Read more
impl<'a, T> Borrow<T> for &'a T where
T: ?Sized,
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fn borrow(&self) -> &T
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Immutably borrows from an owned value. Read more
impl<'a, T> Generator for &'a mut T where
T: Generator + ?Sized,
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type Yield = <T as Generator>::YieldThe type of value this generator yields. Read more
type Return = <T as Generator>::ReturnThe type of value this generator returns. Read more
fn resume(
&mut self
) -> GeneratorState<<&'a mut T as Generator>::Yield, <&'a mut T as Generator>::Return>
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Resumes the execution of this generator. Read more
impl<'a, T> LowerExp for &'a mut T where
T: LowerExp + ?Sized,
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fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
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Formats the value using the given formatter.
impl<'a, T> LowerExp for &'a T where
T: LowerExp + ?Sized,
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fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
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Formats the value using the given formatter.
impl<'a, T> LowerHex for &'a mut T where
T: LowerHex + ?Sized,
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fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
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Formats the value using the given formatter.
impl<'a, T> LowerHex for &'a T where
T: LowerHex + ?Sized,
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fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
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Formats the value using the given formatter.
impl<'a, T> Display for &'a T where
T: Display + ?Sized,
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fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
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Formats the value using the given formatter. Read more
impl<'a, T> Display for &'a mut T where
T: Display + ?Sized,
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fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
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Formats the value using the given formatter. Read more
impl<'a, T> Send for &'a mut T where
T: Send + ?Sized,
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impl<'a, T> Send for &'a T where
T: Sync + ?Sized,
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impl<'a, T, U> CoerceUnsized<*const U> for &'a mut T where
T: Unsize<U> + ?Sized,
U: ?Sized,
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impl<'a, 'b, T, U> CoerceUnsized<&'a U> for &'b T where
'b: 'a,
T: Unsize<U> + ?Sized,
U: ?Sized,
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impl<'a, T, U> CoerceUnsized<&'a mut U> for &'a mut T where
T: Unsize<U> + ?Sized,
U: ?Sized,
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impl<'a, T, U> CoerceUnsized<*const U> for &'a T where
T: Unsize<U> + ?Sized,
U: ?Sized,
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impl<'a, 'b, T, U> CoerceUnsized<&'a U> for &'b mut T where
'b: 'a,
T: Unsize<U> + ?Sized,
U: ?Sized,
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impl<'a, T, U> CoerceUnsized<*mut U> for &'a mut T where
T: Unsize<U> + ?Sized,
U: ?Sized,
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impl<'a, A, F> FnOnce<A> for &'a mut F where
F: FnMut<A> + ?Sized,
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type Output = <F as FnOnce<A>>::OutputThe returned type after the call operator is used.
extern "rust-call" fn call_once(self, args: A) -> <F as FnOnce<A>>::Output
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Performs the call operation.
impl<'a, A, F> FnOnce<A> for &'a F where
F: Fn<A> + ?Sized,
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type Output = <F as FnOnce<A>>::OutputThe returned type after the call operator is used.
extern "rust-call" fn call_once(self, args: A) -> <F as FnOnce<A>>::Output
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Performs the call operation.
impl<'a, T, U> AsMut<U> for &'a mut T where
T: AsMut<U> + ?Sized,
U: ?Sized,
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fn as_mut(&mut self) -> &mut U
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Performs the conversion.
impl<'a, I> DoubleEndedIterator for &'a mut I where
I: DoubleEndedIterator + ?Sized,
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fn next_back(&mut self) -> Option<<I as Iterator>::Item>
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Removes and returns an element from the end of the iterator. Read more
fn try_rfold<B, F, R>(&mut self, init: B, f: F) -> R where
F: FnMut(B, Self::Item) -> R,
R: Try<Ok = B>,
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This is the reverse version of [try_fold()]: it takes elements starting from the back of the iterator. Read more
fn rfold<B, F>(self, accum: B, f: F) -> B where
F: FnMut(B, Self::Item) -> B,
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An iterator method that reduces the iterator's elements to a single, final value, starting from the back. Read more
fn rfind<P>(&mut self, predicate: P) -> Option<Self::Item> where
P: FnMut(&Self::Item) -> bool,
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Searches for an element of an iterator from the right that satisfies a predicate. Read more
impl<'a, T> DerefMut for &'a mut T where
T: ?Sized,
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fn deref_mut(&mut self) -> &mut T
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Mutably dereferences the value.
impl<'a, A> Ord for &'a mut A where
A: Ord + ?Sized,
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fn cmp(&self, other: &&'a mut A) -> Ordering
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This method returns an Ordering between self and other. Read more
fn max(self, other: Self) -> Self
Compares and returns the maximum of two values. Read more
fn min(self, other: Self) -> Self
Compares and returns the minimum of two values. Read more
impl<'a, A> Ord for &'a A where
A: Ord + ?Sized,
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fn cmp(&self, other: &&'a A) -> Ordering
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This method returns an Ordering between self and other. Read more
fn max(self, other: Self) -> Self
Compares and returns the maximum of two values. Read more
fn min(self, other: Self) -> Self
Compares and returns the minimum of two values. Read more
impl<'a, T> BorrowMut<T> for &'a mut T where
T: ?Sized,
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fn borrow_mut(&mut self) -> &mut T
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Mutably borrows from an owned value. Read more
impl<'a, I> FusedIterator for &'a mut I where
I: FusedIterator + ?Sized,
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impl<'a, 'b, A, B> PartialEq<&'b mut B> for &'a A where
A: PartialEq<B> + ?Sized,
B: ?Sized,
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fn eq(&self, other: &&'b mut B) -> 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: &&'b mut B) -> bool
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This method tests for !=.
impl<'a, 'b, A, B> PartialEq<&'b B> for &'a A where
A: PartialEq<B> + ?Sized,
B: ?Sized,
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fn eq(&self, other: &&'b B) -> 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: &&'b B) -> bool
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This method tests for !=.
impl<'a, 'b, A, B> PartialEq<&'b mut B> for &'a mut A where
A: PartialEq<B> + ?Sized,
B: ?Sized,
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fn eq(&self, other: &&'b mut B) -> 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: &&'b mut B) -> bool
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This method tests for !=.
impl<'a, 'b, A, B> PartialEq<&'b B> for &'a mut A where
A: PartialEq<B> + ?Sized,
B: ?Sized,
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fn eq(&self, other: &&'b B) -> 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: &&'b B) -> bool
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This method tests for !=.
impl<'a, I> Iterator for &'a mut I where
I: Iterator + ?Sized,
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type Item = <I as Iterator>::ItemThe type of the elements being iterated over.
fn next(&mut self) -> Option<<I as Iterator>::Item>
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Advances the iterator and returns the next value. Read more
fn size_hint(&self) -> (usize, Option<usize>)
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Returns the bounds on the remaining length of the iterator. Read more
fn nth(&mut self, n: usize) -> Option<<&'a mut I as Iterator>::Item>
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Returns the nth element of the iterator. Read more
fn count(self) -> usize
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Consumes the iterator, counting the number of iterations and returning it. Read more
fn last(self) -> Option<Self::Item>
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Consumes the iterator, returning the last element. Read more
fn step_by(self, step: usize) -> StepBy<Self>
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Creates an iterator starting at the same point, but stepping by the given amount at each iteration. Read more
fn chain<U>(self, other: U) -> Chain<Self, <U as IntoIterator>::IntoIter> where
U: IntoIterator<Item = Self::Item>,
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Takes two iterators and creates a new iterator over both in sequence. Read more
fn zip<U>(self, other: U) -> Zip<Self, <U as IntoIterator>::IntoIter> where
U: IntoIterator,
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'Zips up' two iterators into a single iterator of pairs. Read more
fn map<B, F>(self, f: F) -> Map<Self, F> where
F: FnMut(Self::Item) -> B,
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Takes a closure and creates an iterator which calls that closure on each element. Read more
fn for_each<F>(self, f: F) where
F: FnMut(Self::Item) -> (),
Calls a closure on each element of an iterator. Read more
fn filter<P>(self, predicate: P) -> Filter<Self, P> where
P: FnMut(&Self::Item) -> bool,
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Creates an iterator which uses a closure to determine if an element should be yielded. Read more
fn filter_map<B, F>(self, f: F) -> FilterMap<Self, F> where
F: FnMut(Self::Item) -> Option<B>,
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Creates an iterator that both filters and maps. Read more
fn enumerate(self) -> Enumerate<Self>
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Creates an iterator which gives the current iteration count as well as the next value. Read more
fn peekable(self) -> Peekable<Self>
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Creates an iterator which can use peek to look at the next element of the iterator without consuming it. Read more
fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P> where
P: FnMut(&Self::Item) -> bool,
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Creates an iterator that [skip]s elements based on a predicate. Read more
fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P> where
P: FnMut(&Self::Item) -> bool,
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Creates an iterator that yields elements based on a predicate. Read more
fn skip(self, n: usize) -> Skip<Self>
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Creates an iterator that skips the first n elements. Read more
fn take(self, n: usize) -> Take<Self>
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Creates an iterator that yields its first n elements. Read more
fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F> where
F: FnMut(&mut St, Self::Item) -> Option<B>,
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An iterator adaptor similar to [fold] that holds internal state and produces a new iterator. Read more
fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F> where
F: FnMut(Self::Item) -> U,
U: IntoIterator,
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Creates an iterator that works like map, but flattens nested structure. Read more
fn fuse(self) -> Fuse<Self>
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Creates an iterator which ends after the first [None]. Read more
fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnMut(&Self::Item) -> (),
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Do something with each element of an iterator, passing the value on. Read more
fn by_ref(&mut self) -> &mut Self
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Borrows an iterator, rather than consuming it. Read more
fn collect<B>(self) -> B where
B: FromIterator<Self::Item>,
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Transforms an iterator into a collection. Read more
fn partition<B, F>(self, f: F) -> (B, B) where
B: Default + Extend<Self::Item>,
F: FnMut(&Self::Item) -> bool,
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Consumes an iterator, creating two collections from it. Read more
fn try_fold<B, F, R>(&mut self, init: B, f: F) -> R where
F: FnMut(B, Self::Item) -> R,
R: Try<Ok = B>,
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An iterator method that applies a function as long as it returns successfully, producing a single, final value. Read more
fn fold<B, F>(self, init: B, f: F) -> B where
F: FnMut(B, Self::Item) -> B,
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An iterator method that applies a function, producing a single, final value. Read more
fn all<F>(&mut self, f: F) -> bool where
F: FnMut(Self::Item) -> bool,
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Tests if every element of the iterator matches a predicate. Read more
fn any<F>(&mut self, f: F) -> bool where
F: FnMut(Self::Item) -> bool,
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Tests if any element of the iterator matches a predicate. Read more
fn find<P>(&mut self, predicate: P) -> Option<Self::Item> where
P: FnMut(&Self::Item) -> bool,
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Searches for an element of an iterator that satisfies a predicate. Read more
fn position<P>(&mut self, predicate: P) -> Option<usize> where
P: FnMut(Self::Item) -> bool,
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Searches for an element in an iterator, returning its index. Read more
fn rposition<P>(&mut self, predicate: P) -> Option<usize> where
P: FnMut(Self::Item) -> bool,
Self: ExactSizeIterator + DoubleEndedIterator,
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Searches for an element in an iterator from the right, returning its index. Read more
fn max(self) -> Option<Self::Item> where
Self::Item: Ord,
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Returns the maximum element of an iterator. Read more
fn min(self) -> Option<Self::Item> where
Self::Item: Ord,
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Returns the minimum element of an iterator. Read more
fn max_by_key<B, F>(self, f: F) -> Option<Self::Item> where
B: Ord,
F: FnMut(&Self::Item) -> B,
Returns the element that gives the maximum value from the specified function. Read more
fn max_by<F>(self, compare: F) -> Option<Self::Item> where
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
Returns the element that gives the maximum value with respect to the specified comparison function. Read more
fn min_by_key<B, F>(self, f: F) -> Option<Self::Item> where
B: Ord,
F: FnMut(&Self::Item) -> B,
Returns the element that gives the minimum value from the specified function. Read more
fn min_by<F>(self, compare: F) -> Option<Self::Item> where
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
Returns the element that gives the minimum value with respect to the specified comparison function. Read more
fn rev(self) -> Rev<Self> where
Self: DoubleEndedIterator,
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Reverses an iterator's direction. Read more
fn unzip<A, B, FromA, FromB>(self) -> (FromA, FromB) where
FromA: Default + Extend<A>,
FromB: Default + Extend<B>,
Self: Iterator<Item = (A, B)>,
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Converts an iterator of pairs into a pair of containers. Read more
fn cloned<'a, T>(self) -> Cloned<Self> where
Self: Iterator<Item = &'a T>,
T: 'a + Clone,
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Creates an iterator which [clone]s all of its elements. Read more
fn cycle(self) -> Cycle<Self> where
Self: Clone,
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Repeats an iterator endlessly. Read more
fn sum<S>(self) -> S where
S: Sum<Self::Item>,
Sums the elements of an iterator. Read more
fn product<P>(self) -> P where
P: Product<Self::Item>,
Iterates over the entire iterator, multiplying all the elements Read more
fn cmp<I>(self, other: I) -> Ordering where
I: IntoIterator<Item = Self::Item>,
Self::Item: Ord,
Lexicographically compares the elements of this Iterator with those of another. Read more
fn partial_cmp<I>(self, other: I) -> Option<Ordering> where
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Lexicographically compares the elements of this Iterator with those of another. Read more
fn eq<I>(self, other: I) -> bool where
I: IntoIterator,
Self::Item: PartialEq<<I as IntoIterator>::Item>,
Determines if the elements of this Iterator are equal to those of another. Read more
fn ne<I>(self, other: I) -> bool where
I: IntoIterator,
Self::Item: PartialEq<<I as IntoIterator>::Item>,
Determines if the elements of this Iterator are unequal to those of another. Read more
fn lt<I>(self, other: I) -> bool where
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Determines if the elements of this Iterator are lexicographically less than those of another. Read more
fn le<I>(self, other: I) -> bool where
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Determines if the elements of this Iterator are lexicographically less or equal to those of another. Read more
fn gt<I>(self, other: I) -> bool where
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Determines if the elements of this Iterator are lexicographically greater than those of another. Read more
fn ge<I>(self, other: I) -> bool where
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Determines if the elements of this Iterator are lexicographically greater than or equal to those of another. Read more
impl<'a, T> UpperExp for &'a mut T where
T: UpperExp + ?Sized,
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fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
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Formats the value using the given formatter.
impl<'a, T> UpperExp for &'a T where
T: UpperExp + ?Sized,
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fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
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Formats the value using the given formatter.
impl<'a, I> ExactSizeIterator for &'a mut I where
I: ExactSizeIterator + ?Sized,
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fn len(&self) -> usize
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Returns the exact number of times the iterator will iterate. Read more
fn is_empty(&self) -> bool
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Returns whether the iterator is empty. Read more
impl<'a, T> UpperHex for &'a T where
T: UpperHex + ?Sized,
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fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
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Formats the value using the given formatter.
impl<'a, T> UpperHex for &'a mut T where
T: UpperHex + ?Sized,
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fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
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Formats the value using the given formatter.
impl<'a, T> Octal for &'a T where
T: Octal + ?Sized,
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fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
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Formats the value using the given formatter.
impl<'a, T> Octal for &'a mut T where
T: Octal + ?Sized,
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fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
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Formats the value using the given formatter.
impl<'a, H> Hasher for &'a mut H where
H: Hasher + ?Sized,
fn finish(&self) -> u64
[src]
Returns the hash value for the values written so far. Read more
fn write(&mut self, bytes: &[u8])
[src]
Writes some data into this Hasher. Read more
fn write_u8(&mut self, i: u8)
[src]
Writes a single u8 into this hasher.
fn write_u16(&mut self, i: u16)
[src]
Writes a single u16 into this hasher.
fn write_u32(&mut self, i: u32)
[src]
Writes a single u32 into this hasher.
fn write_u64(&mut self, i: u64)
[src]
Writes a single u64 into this hasher.
fn write_u128(&mut self, i: u128)
[src]
Writes a single u128 into this hasher.
fn write_usize(&mut self, i: usize)
[src]
Writes a single usize into this hasher.
fn write_i8(&mut self, i: i8)
[src]
Writes a single i8 into this hasher.
fn write_i16(&mut self, i: i16)
[src]
Writes a single i16 into this hasher.
fn write_i32(&mut self, i: i32)
[src]
Writes a single i32 into this hasher.
fn write_i64(&mut self, i: i64)
[src]
Writes a single i64 into this hasher.
fn write_i128(&mut self, i: i128)
[src]
Writes a single i128 into this hasher.
fn write_isize(&mut self, i: isize)
[src]
Writes a single isize into this hasher.
impl<'a, A, F> Fn<A> for &'a F where
F: Fn<A> + ?Sized,
[src]
extern "rust-call" fn call(&self, args: A) -> <F as FnOnce<A>>::Output
[src]
Performs the call operation.
impl<'a, I> TrustedLen for &'a mut I where
I: TrustedLen + ?Sized,
[src]
impl<'a, T> Pointer for &'a T where
T: ?Sized,
[src]
fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
[src]
Formats the value using the given formatter.
impl<'a, T> Pointer for &'a mut T where
T: ?Sized,
[src]
fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
[src]
Formats the value using the given formatter.
impl<'a, T> Binary for &'a T where
T: Binary + ?Sized,
[src]
fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
[src]
Formats the value using the given formatter.
impl<'a, T> Binary for &'a mut T where
T: Binary + ?Sized,
[src]
fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
[src]
Formats the value using the given formatter.
impl<'a, T> Debug for &'a mut T where
T: Debug + ?Sized,
[src]
fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
[src]
Formats the value using the given formatter. Read more
impl<'a, T> Debug for &'a T where
T: Debug + ?Sized,
[src]
fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
[src]
Formats the value using the given formatter. Read more
impl<'a, R: Read + ?Sized> Read for &'a mut R
[src]
fn read(&mut self, buf: &mut [u8]) -> Result<usize>
[src]
Pull some bytes from this source into the specified buffer, returning how many bytes were read. Read more
unsafe fn initializer(&self) -> Initializer
[src]
Determines if this Reader can work with buffers of uninitialized memory. Read more
fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize>
[src]
Read all bytes until EOF in this source, placing them into buf. Read more
fn read_to_string(&mut self, buf: &mut String) -> Result<usize>
[src]
Read all bytes until EOF in this source, placing them into buf. Read more
fn read_exact(&mut self, buf: &mut [u8]) -> Result<()>
[src]
Read the exact number of bytes required to fill buf. Read more
fn by_ref(&mut self) -> &mut Self where
Self: Sized,
[src]
Creates a "by reference" adaptor for this instance of Read. Read more
fn bytes(self) -> Bytes<Self> where
Self: Sized,
[src]
Transforms this Read instance to an [Iterator] over its bytes. Read more
fn chars(self) -> Chars<Self> where
Self: Sized,
[src]
Transforms this Read instance to an [Iterator] over [char]s. Read more
fn chain<R: Read>(self, next: R) -> Chain<Self, R> where
Self: Sized,
[src]
Creates an adaptor which will chain this stream with another. Read more
fn take(self, limit: u64) -> Take<Self> where
Self: Sized,
[src]
Creates an adaptor which will read at most limit bytes from it. Read more
impl<'a, W: Write + ?Sized> Write for &'a mut W
[src]
fn write(&mut self, buf: &[u8]) -> Result<usize>
[src]
Write a buffer into this object, returning how many bytes were written. Read more
fn flush(&mut self) -> Result<()>
[src]
Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more
fn write_all(&mut self, buf: &[u8]) -> Result<()>
[src]
Attempts to write an entire buffer into this write. Read more
fn write_fmt(&mut self, fmt: Arguments) -> Result<()>
[src]
Writes a formatted string into this writer, returning any error encountered. Read more
fn by_ref(&mut self) -> &mut Self where
Self: Sized,
[src]
Creates a "by reference" adaptor for this instance of Write. Read more
impl<'a, S: Seek + ?Sized> Seek for &'a mut S
[src]
fn seek(&mut self, pos: SeekFrom) -> Result<u64>
[src]
Seek to an offset, in bytes, in a stream. Read more
impl<'a, B: BufRead + ?Sized> BufRead for &'a mut B
[src]
fn fill_buf(&mut self) -> Result<&[u8]>
[src]
Fills the internal buffer of this object, returning the buffer contents. Read more
fn consume(&mut self, amt: usize)
[src]
Tells this buffer that amt bytes have been consumed from the buffer, so they should no longer be returned in calls to read. Read more
fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> Result<usize>
[src]
Read all bytes into buf until the delimiter byte or EOF is reached. Read more
fn read_line(&mut self, buf: &mut String) -> Result<usize>
[src]
Read all bytes until a newline (the 0xA byte) is reached, and append them to the provided buffer. Read more
fn split(self, byte: u8) -> Split<Self> where
Self: Sized,
[src]
Returns an iterator over the contents of this reader split on the byte byte. Read more
fn lines(self) -> Lines<Self> where
Self: Sized,
[src]
Returns an iterator over the lines of this reader. Read more
impl<'a, T: ToSocketAddrs + ?Sized> ToSocketAddrs for &'a T
[src]
type Iter = T::IterReturned iterator over socket addresses which this type may correspond to. Read more
fn to_socket_addrs(&self) -> Result<T::Iter>
[src]
Converts this object to an iterator of resolved SocketAddrs. Read more
impl<'a, T: ?Sized> !UnwindSafe for &'a mut T
impl<'a, T: RefUnwindSafe + ?Sized> UnwindSafe for &'a T
© 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/primitive.reference.html