pub enum Cow<'a, B> where B: 'a + ToOwned + ?Sized, { Borrowed(&'a B), Owned(<B as ToOwned>::Owned), }
A clone-on-write smart pointer.
The type Cow
is a smart pointer providing clone-on-write functionality: it can enclose and provide immutable access to borrowed data, and clone the data lazily when mutation or ownership is required. The type is designed to work with general borrowed data via the Borrow
trait.
Cow
implements Deref
, which means that you can call non-mutating methods directly on the data it encloses. If mutation is desired, to_mut
will obtain a mutable reference to an owned value, cloning if necessary.
use std::borrow::Cow; fn abs_all(input: &mut Cow<[i32]>) { for i in 0..input.len() { let v = input[i]; if v < 0 { // Clones into a vector if not already owned. input.to_mut()[i] = -v; } } } // No clone occurs because `input` doesn't need to be mutated. let slice = [0, 1, 2]; let mut input = Cow::from(&slice[..]); abs_all(&mut input); // Clone occurs because `input` needs to be mutated. let slice = [-1, 0, 1]; let mut input = Cow::from(&slice[..]); abs_all(&mut input); // No clone occurs because `input` is already owned. let mut input = Cow::from(vec![-1, 0, 1]); abs_all(&mut input);
Another example showing how to keep Cow
in a struct:
use std::borrow::Cow; struct Items<'a, X: 'a> where [X]: ToOwned<Owned = Vec<X>> { values: Cow<'a, [X]>, } impl<'a, X: Clone + 'a> Items<'a, X> where [X]: ToOwned<Owned = Vec<X>> { fn new(v: Cow<'a, [X]>) -> Self { Items { values: v } } } // Creates a container from borrowed values of a slice let readonly = [1, 2]; let borrowed = Items::new((&readonly[..]).into()); match borrowed { Items { values: Cow::Borrowed(b) } => println!("borrowed {:?}", b), _ => panic!("expect borrowed value"), } let mut clone_on_write = borrowed; // Mutates the data from slice into owned vec and pushes a new value on top clone_on_write.values.to_mut().push(3); println!("clone_on_write = {:?}", clone_on_write.values); // The data was mutated. Let check it out. match clone_on_write { Items { values: Cow::Owned(_) } => println!("clone_on_write contains owned data"), _ => panic!("expect owned data"), }
Borrowed(&'a B)
Borrowed data.
Owned(<B as ToOwned>::Owned)
Owned data.
impl<'_, B> Cow<'_, B> where
B: ToOwned + ?Sized,
[src]
pub fn to_mut(&mut self) -> &mut <B as ToOwned>::Owned
[src]
Acquires a mutable reference to the owned form of the data.
Clones the data if it is not already owned.
pub fn into_owned(self) -> <B as ToOwned>::Owned
[src]
Extracts the owned data.
Clones the data if it is not already owned.
Calling into_owned
on a Cow::Borrowed
clones the underlying data and becomes a Cow::Owned
:
use std::borrow::Cow; let s = "Hello world!"; let cow = Cow::Borrowed(s); assert_eq!( cow.into_owned(), String::from(s) );
Calling into_owned
on a Cow::Owned
is a no-op:
impl<'_, B> Display for Cow<'_, B> where
B: Display + ToOwned + ?Sized,
<B as ToOwned>::Owned: Display,
[src]
impl<'a> AddAssign<Cow<'a, str>> for Cow<'a, str>
[src]1.14.0
fn add_assign(&mut self, rhs: Cow<'a, str>)
[src]
impl<'a> AddAssign<&'a str> for Cow<'a, str>
[src]1.14.0
fn add_assign(&mut self, rhs: &'a str)
[src]
impl<'_, T> AsRef<T> for Cow<'_, T> where
T: ToOwned + ?Sized,
[src]
fn as_ref(&self) -> &T
[src]
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
impl<'_, B> Hash for Cow<'_, B> where
B: Hash + ToOwned + ?Sized,
[src]
fn hash<H>(&self, state: &mut H) where
H: Hasher,
[src]
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
[src]1.3.0
Feeds a slice of this type into the given [Hasher
]. Read more
impl<'_, B> Eq for Cow<'_, B> where
B: Eq + ToOwned + ?Sized,
[src]
impl<'a> From<Cow<'a, str>> for String
[src]1.14.0
impl<'a, T> From<&'a Vec<T>> for Cow<'a, [T]> where
T: Clone,
[src]1.28.0
impl<'a> From<String> for Cow<'a, str>
[src]
impl<'a, T> From<Vec<T>> for Cow<'a, [T]> where
T: Clone,
[src]1.8.0
impl<'a, T> From<Cow<'a, [T]>> for Vec<T> where
[T]: ToOwned,
<[T] as ToOwned>::Owned == Vec<T>,
[src]1.14.0
impl<'a> From<&'a String> for Cow<'a, str>
[src]1.28.0
impl<'a> From<&'a str> for Cow<'a, str>
[src]
impl<'a, T> From<&'a [T]> for Cow<'a, [T]> where
T: Clone,
[src]1.8.0
impl<'a> Extend<Cow<'a, str>> for String
[src]1.19.0
fn extend<I>(&mut self, iter: I) where
I: IntoIterator<Item = Cow<'a, str>>,
[src]
impl<'_> ToString for Cow<'_, str>
[src]1.17.0
impl<'_, B> Ord for Cow<'_, B> where
B: Ord + ToOwned + ?Sized,
[src]
fn cmp(&self, other: &Cow<'_, B>) -> Ordering
[src]
fn max(self, other: Self) -> Self
[src]1.21.0
Compares and returns the maximum of two values. Read more
fn min(self, other: Self) -> Self
[src]1.21.0
Compares and returns the minimum of two values. Read more
fn clamp(self, min: Self, max: Self) -> Self
[src]
Restrict a value to a certain interval. Read more
impl<'_, B> Debug for Cow<'_, B> where
B: Debug + ToOwned + ?Sized,
<B as ToOwned>::Owned: Debug,
[src]
impl<'a, 'b> PartialEq<String> for Cow<'a, str>
[src]
impl<'a, 'b> PartialEq<Cow<'a, str>> for str
[src]
impl<'a, 'b> PartialEq<str> for Cow<'a, str>
[src]
impl<'a, 'b> PartialEq<Cow<'a, str>> for String
[src]
impl<'a, 'b, A, B> PartialEq<&'b mut [B]> for Cow<'a, [A]> where
A: Clone + PartialEq<B>,
[src]
fn eq(&self, other: &&'b mut [B]) -> bool
[src]
fn ne(&self, other: &&'b mut [B]) -> bool
[src]
impl<'a, 'b, A, B> PartialEq<Vec<B>> for Cow<'a, [A]> where
A: Clone + PartialEq<B>,
[src]
impl<'a, 'b> PartialEq<Cow<'a, str>> for &'b str
[src]
impl<'a, 'b, B, C> PartialEq<Cow<'b, C>> for Cow<'a, B> where
B: PartialEq<C> + ToOwned + ?Sized,
C: ToOwned + ?Sized,
[src]
fn eq(&self, other: &Cow<'b, C>) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b, A, B> PartialEq<&'b [B]> for Cow<'a, [A]> where
A: Clone + PartialEq<B>,
[src]
impl<'a, 'b> PartialEq<&'b str> for Cow<'a, str>
[src]
impl<'_, B> Deref for Cow<'_, B> where
B: ToOwned + ?Sized,
[src]
type Target = B
The resulting type after dereferencing.
fn deref(&self) -> &B
[src]
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
impl<'_, B> Clone for Cow<'_, B> where
B: ToOwned + ?Sized,
[src]
impl<'a, T> FromIterator<T> for Cow<'a, [T]> where
T: Clone,
[src]
impl<'a> FromIterator<String> for Cow<'a, str>
[src]1.12.0
impl<'a> FromIterator<char> for Cow<'a, str>
[src]1.12.0
impl<'a, 'b> FromIterator<&'b str> for Cow<'a, str>
[src]1.12.0
impl<'a> FromIterator<Cow<'a, str>> for String
[src]1.19.0
impl<'_, B> Default for Cow<'_, B> where
B: ToOwned + ?Sized,
<B as ToOwned>::Owned: Default,
[src]1.11.0
fn default() -> Cow<'_, B>
[src]
Creates an owned Cow<'a, B> with the default value for the contained owned value.
impl<'a, B> Borrow<B> for Cow<'a, B> where
B: ToOwned + ?Sized,
<B as ToOwned>::Owned: 'a,
[src]
fn borrow(&self) -> &B
[src]
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
impl<'a> Add<&'a str> for Cow<'a, str>
[src]1.14.0
type Output = Cow<'a, str>
The resulting type after applying the +
operator.
fn add(self, rhs: &'a str) -> <Cow<'a, str> as Add<&'a str>>::Output
[src]
impl<'a> Add<Cow<'a, str>> for Cow<'a, str>
[src]1.14.0
type Output = Cow<'a, str>
The resulting type after applying the +
operator.
fn add(self, rhs: Cow<'a, str>) -> <Cow<'a, str> as Add<Cow<'a, str>>>::Output
[src]
impl<'a, B> PartialOrd<Cow<'a, B>> for Cow<'a, B> where
B: PartialOrd<B> + ToOwned + ?Sized,
[src]
fn partial_cmp(&self, other: &Cow<'a, B>) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialEq<OsStr> for Cow<'a, OsStr>
[src]1.8.0
fn eq(&self, other: &OsStr) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialEq<Cow<'a, OsStr>> for OsStr
[src]1.8.0
fn eq(&self, other: &Cow<'a, OsStr>) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialEq<&'b OsStr> for Cow<'a, OsStr>
[src]1.8.0
fn eq(&self, other: &&'b OsStr) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialEq<Cow<'a, OsStr>> for &'b OsStr
[src]1.8.0
fn eq(&self, other: &Cow<'a, OsStr>) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialEq<OsString> for Cow<'a, OsStr>
[src]1.8.0
fn eq(&self, other: &OsString) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialEq<Cow<'a, OsStr>> for OsString
[src]1.8.0
fn eq(&self, other: &Cow<'a, OsStr>) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialEq<Path> for Cow<'a, Path>
[src]1.6.0
fn eq(&self, other: &Path) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialEq<Cow<'a, Path>> for Path
[src]1.6.0
fn eq(&self, other: &Cow<'a, Path>) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialEq<&'b Path> for Cow<'a, Path>
[src]1.6.0
fn eq(&self, other: &&'b Path) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialEq<Cow<'a, Path>> for &'b Path
[src]1.6.0
fn eq(&self, other: &Cow<'a, Path>) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialEq<PathBuf> for Cow<'a, Path>
[src]1.6.0
fn eq(&self, other: &PathBuf) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialEq<Cow<'a, Path>> for PathBuf
[src]1.6.0
fn eq(&self, other: &Cow<'a, Path>) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialEq<Cow<'a, OsStr>> for PathBuf
[src]1.8.0
fn eq(&self, other: &Cow<'a, OsStr>) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialEq<PathBuf> for Cow<'a, OsStr>
[src]1.8.0
fn eq(&self, other: &PathBuf) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialEq<Cow<'a, OsStr>> for Path
[src]1.8.0
fn eq(&self, other: &Cow<'a, OsStr>) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialEq<Path> for Cow<'a, OsStr>
[src]1.8.0
fn eq(&self, other: &Path) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialEq<Cow<'b, OsStr>> for &'a Path
[src]1.8.0
fn eq(&self, other: &Cow<'b, OsStr>) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialEq<&'a Path> for Cow<'b, OsStr>
[src]1.8.0
fn eq(&self, other: &&'a Path) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialEq<OsStr> for Cow<'a, Path>
[src]1.8.0
fn eq(&self, other: &OsStr) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialEq<Cow<'a, Path>> for OsStr
[src]1.8.0
fn eq(&self, other: &Cow<'a, Path>) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialEq<&'b OsStr> for Cow<'a, Path>
[src]1.8.0
fn eq(&self, other: &&'b OsStr) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialEq<Cow<'a, Path>> for &'b OsStr
[src]1.8.0
fn eq(&self, other: &Cow<'a, Path>) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialEq<OsString> for Cow<'a, Path>
[src]1.8.0
fn eq(&self, other: &OsString) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialEq<Cow<'a, Path>> for OsString
[src]1.8.0
fn eq(&self, other: &Cow<'a, Path>) -> bool
[src]
fn ne(&self, other: &Rhs) -> bool
[src]
This method tests for !=
.
impl<'a, 'b> PartialOrd<OsStr> for Cow<'a, OsStr>
[src]1.8.0
fn partial_cmp(&self, other: &OsStr) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialOrd<Cow<'a, OsStr>> for OsStr
[src]1.8.0
fn partial_cmp(&self, other: &Cow<'a, OsStr>) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialOrd<&'b OsStr> for Cow<'a, OsStr>
[src]1.8.0
fn partial_cmp(&self, other: &&'b OsStr) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialOrd<Cow<'a, OsStr>> for &'b OsStr
[src]1.8.0
fn partial_cmp(&self, other: &Cow<'a, OsStr>) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialOrd<OsString> for Cow<'a, OsStr>
[src]1.8.0
fn partial_cmp(&self, other: &OsString) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialOrd<Cow<'a, OsStr>> for OsString
[src]1.8.0
fn partial_cmp(&self, other: &Cow<'a, OsStr>) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialOrd<Path> for Cow<'a, Path>
[src]1.8.0
fn partial_cmp(&self, other: &Path) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialOrd<Cow<'a, Path>> for Path
[src]1.8.0
fn partial_cmp(&self, other: &Cow<'a, Path>) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialOrd<&'b Path> for Cow<'a, Path>
[src]1.8.0
fn partial_cmp(&self, other: &&'b Path) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialOrd<Cow<'a, Path>> for &'b Path
[src]1.8.0
fn partial_cmp(&self, other: &Cow<'a, Path>) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialOrd<PathBuf> for Cow<'a, Path>
[src]1.8.0
fn partial_cmp(&self, other: &PathBuf) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialOrd<Cow<'a, Path>> for PathBuf
[src]1.8.0
fn partial_cmp(&self, other: &Cow<'a, Path>) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialOrd<Cow<'a, OsStr>> for PathBuf
[src]1.8.0
fn partial_cmp(&self, other: &Cow<'a, OsStr>) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialOrd<PathBuf> for Cow<'a, OsStr>
[src]1.8.0
fn partial_cmp(&self, other: &PathBuf) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialOrd<Cow<'a, OsStr>> for Path
[src]1.8.0
fn partial_cmp(&self, other: &Cow<'a, OsStr>) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialOrd<Path> for Cow<'a, OsStr>
[src]1.8.0
fn partial_cmp(&self, other: &Path) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialOrd<Cow<'b, OsStr>> for &'a Path
[src]1.8.0
fn partial_cmp(&self, other: &Cow<'b, OsStr>) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialOrd<&'a Path> for Cow<'b, OsStr>
[src]1.8.0
fn partial_cmp(&self, other: &&'a Path) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialOrd<OsStr> for Cow<'a, Path>
[src]1.8.0
fn partial_cmp(&self, other: &OsStr) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialOrd<Cow<'a, Path>> for OsStr
[src]1.8.0
fn partial_cmp(&self, other: &Cow<'a, Path>) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialOrd<&'b OsStr> for Cow<'a, Path>
[src]1.8.0
fn partial_cmp(&self, other: &&'b OsStr) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialOrd<Cow<'a, Path>> for &'b OsStr
[src]1.8.0
fn partial_cmp(&self, other: &Cow<'a, Path>) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialOrd<OsString> for Cow<'a, Path>
[src]1.8.0
fn partial_cmp(&self, other: &OsString) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'a, 'b> PartialOrd<Cow<'a, Path>> for OsString
[src]1.8.0
fn partial_cmp(&self, other: &Cow<'a, Path>) -> Option<Ordering>
[src]
fn lt(&self, other: &Rhs) -> bool
[src]
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
[src]
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
[src]
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
[src]
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<'_> AsRef<Path> for Cow<'_, OsStr>
[src]1.8.0
impl<'a, 'b> From<Cow<'b, str>> for Box<dyn Error + Send + Sync + 'a>
[src]1.22.0
fn from(err: Cow<'b, str>) -> Box<dyn Error + Send + Sync + 'a>
[src]
impl<I> Iterator for Box<I> where I: Iterator + ?Sized, type Item = <I as Iterator>::Item; impl<F> Future for Box<F> where F: Unpin + Future + ?Sized, type Output = <F as Future>::Output; impl<R: Read + ?Sized> Read for Box<R> impl<W: Write + ?Sized> Write for Box<W>
impl<'a> From<Cow<'a, str>> for Box<dyn Error>
[src]1.22.0
fn from(err: Cow<'a, str>) -> Box<dyn Error>
[src]
impl<I> Iterator for Box<I> where I: Iterator + ?Sized, type Item = <I as Iterator>::Item; impl<F> Future for Box<F> where F: Unpin + Future + ?Sized, type Output = <F as Future>::Output; impl<R: Read + ?Sized> Read for Box<R> impl<W: Write + ?Sized> Write for Box<W>
impl<'a> From<Cow<'a, CStr>> for CString
[src]1.28.0
impl<'a> From<CString> for Cow<'a, CStr>
[src]1.28.0
impl<'a> From<&'a CStr> for Cow<'a, CStr>
[src]1.28.0
impl<'a> From<&'a CString> for Cow<'a, CStr>
[src]1.28.0
impl<'a> From<OsString> for Cow<'a, OsStr>
[src]1.28.0
impl<'a> From<&'a OsStr> for Cow<'a, OsStr>
[src]1.28.0
impl<'a> From<&'a OsString> for Cow<'a, OsStr>
[src]1.28.0
impl<'a> From<Cow<'a, OsStr>> for OsString
[src]1.28.0
impl<'a> From<&'a Path> for Cow<'a, Path>
[src]1.6.0
impl<'a> From<PathBuf> for Cow<'a, Path>
[src]1.6.0
impl<'a> From<&'a PathBuf> for Cow<'a, Path>
[src]1.28.0
impl<'a> From<Cow<'a, Path>> for PathBuf
[src]1.28.0
impl<'a, B: ?Sized> UnwindSafe for Cow<'a, B> where
B: RefUnwindSafe,
<B as ToOwned>::Owned: UnwindSafe,
impl<'a, B: ?Sized> RefUnwindSafe for Cow<'a, B> where
B: RefUnwindSafe,
<B as ToOwned>::Owned: RefUnwindSafe,
impl<'a, B: ?Sized> Unpin for Cow<'a, B> where
<B as ToOwned>::Owned: Unpin,
impl<'a, B: ?Sized> Send for Cow<'a, B> where
B: Sync,
<B as ToOwned>::Owned: Send,
impl<'a, B: ?Sized> Sync for Cow<'a, B> where
B: Sync,
<B as ToOwned>::Owned: Sync,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
[src]
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>
[src]
impl<T, U> Into<U> for T where
U: From<T>,
[src]
impl<T> From<T> for T
[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
[src]
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
[src]
impl<T> Borrow<T> for T where
T: ?Sized,
[src]
fn borrow(&self) -> &T
[src]
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
impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]
fn borrow_mut(&mut self) -> &mut T
[src]
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
impl<T> Any for T where
T: 'static + ?Sized,
[src]
impl<T> ToOwned for T where
T: Clone,
[src]
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
[src]
fn clone_into(&self, target: &mut T)
[src]
impl<T> ToString for T where
T: Display + ?Sized,
[src]
© 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/borrow/enum.Cow.html