# Enum std::borrow::Cow 1.0.0 [−] [src]

    pub enum Cow<'a, B> where B: 'a + ToOwned + ?Sized {
        Borrowed(&'a B),
        Owned(B::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.

# Examples

    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);Run

## Variants

`Borrowed(&'a B)`

Borrowed data.

`Owned(B::Owned)`

Owned data.

## Methods

### `impl<'a, B> Cow<'a, B> where B: ToOwned + ?Sized`
[src]

#### `fn to_mut(&mut self) -> &mut B::Owned`

Acquires a mutable reference to the owned form of the data.

Clones the data if it is not already owned.

# Examples

    use std::borrow::Cow;

    let mut cow: Cow<[_]> = Cow::Owned(vec![1, 2, 3]);

    let hello = cow.to_mut();

    assert_eq!(hello, &[1, 2, 3]);Run

#### `fn into_owned(self) -> B::Owned`

Extracts the owned data.

Clones the data if it is not already owned.

# Examples

    use std::borrow::Cow;

    let cow: Cow<[_]> = Cow::Owned(vec![1, 2, 3]);

    let hello = cow.into_owned();

    assert_eq!(vec![1, 2, 3], hello);Run

## Trait Implementations

### `impl<'a, B> Display for Cow<'a, B> where B: Display + ToOwned + ?Sized,
B::Owned: Display`
[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result<(), Error>`

Formats the value using the given formatter. Read more

### `impl<'a, B> Borrow<B> for Cow<'a, B> where B: ToOwned + ?Sized, B::Owned: 'a`
[src]

#### `fn borrow(&self) -> &B`

Immutably borrows from an owned value. Read more

### `impl<'a> Add<&'a str> for Cow<'a, str>`
1.14.0
[src]

#### `type Output = Cow<'a, str>`

The resulting type after applying the `+` operator

#### `fn add(self, rhs: &'a str) -> Cow<'a, str>::Output`

The method for the `+` operator

### `impl<'a> Add<Cow<'a, str>> for Cow<'a, str>`
1.14.0
[src]

#### `type Output = Cow<'a, str>`

The resulting type after applying the `+` operator

#### `fn add(self, rhs: Cow<'a, str>) -> Cow<'a, str>::Output`

The method for the `+` operator

### `impl<'a, B> Ord for Cow<'a, B> where B: Ord + ToOwned + ?Sized`
[src]

#### `fn cmp(&self, other: &Cow<'a, B>) -> Ordering`

This method returns an `Ordering` between `self` and `other`. Read more

### `impl<'a> FromIterator<char> for Cow<'a, str>`
1.12.0
[src]

#### `fn from_iter<I>(it: I) -> Cow<'a, str> where I: IntoIterator<Item=char>`

Creates a value from an iterator. Read more

### `impl<'a, 'b> FromIterator<&'b str> for Cow<'a, str>`
1.12.0
[src]

#### `fn from_iter<I>(it: I) -> Cow<'a, str> where I: IntoIterator<Item=&'b str>`

Creates a value from an iterator. Read more

### `impl<'a> FromIterator<String> for Cow<'a, str>`
1.12.0
[src]

#### `fn from_iter<I>(it: I) -> Cow<'a, str> where I: IntoIterator<Item=String>`

Creates a value from an iterator. Read more

### `impl<'a, T> FromIterator<T> for Cow<'a, [T]> where T: Clone`
[src]

#### `fn from_iter<I>(it: I) -> Cow<'a, [T]> where I: IntoIterator<Item=T>`

Creates a value from an iterator. Read more

### `impl<'a, B> Eq for Cow<'a, B> where B: Eq + ToOwned + ?Sized`
[src]

### `impl<'a, B> Hash for Cow<'a, B> where B: Hash + ToOwned + ?Sized`
[src]

#### `fn hash<H>(&self, state: &mut H) where H: Hasher`

Feeds this value into the state given, updating the hasher as necessary.

#### `fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher`
1.3.0

Feeds a slice of this type into the state provided.

### `impl<'a> AddAssign<&'a str> for Cow<'a, str>`
1.14.0
[src]

#### `fn add_assign(&mut self, rhs: &'a str)`

The method for the `+=` operator

### `impl<'a> AddAssign<Cow<'a, str>> for Cow<'a, str>`
1.14.0
[src]

#### `fn add_assign(&mut self, rhs: Cow<'a, str>)`

The method for the `+=` operator

### `impl<'a> ToString for Cow<'a, str>`
1.17.0
[src]

#### `fn to_string(&self) -> String`

Converts the given value to a `String`. Read more

### `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`

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

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

This method tests for `!=`.

### `impl<'a, 'b> PartialEq<str> for Cow<'a, str>`
[src]

#### `fn eq(&self, other: &str) -> bool`

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

#### `fn ne(&self, other: &str) -> bool`

This method tests for `!=`.

### `impl<'a, 'b> PartialEq<&'b str> for Cow<'a, str>`
[src]

#### `fn eq(&self, other: &&'b str) -> bool`

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

#### `fn ne(&self, other: &&'b str) -> bool`

This method tests for `!=`.

### `impl<'a, 'b> PartialEq<String> for Cow<'a, str>`
[src]

#### `fn eq(&self, other: &String) -> bool`

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

#### `fn ne(&self, other: &String) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<&'b [B]> for Cow<'a, [A]> where A: Clone + PartialEq<B>`
[src]

#### `fn eq(&self, other: &&'b [B]) -> bool`

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

#### `fn ne(&self, other: &&'b [B]) -> bool`

This method tests for `!=`.

### `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`

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`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<Vec<B>> for Cow<'a, [A]> where A: Clone + PartialEq<B>`
[src]

#### `fn eq(&self, other: &Vec<B>) -> bool`

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

#### `fn ne(&self, other: &Vec<B>) -> bool`

This method tests for `!=`.

### `impl<'a, B> Default for Cow<'a, B> where B: ToOwned + ?Sized, B::Owned: Default`
1.11.0
[src]

#### `fn default() -> Cow<'a, B>`

Creates an owned Cow<'a, B> with the default value for the contained owned value.

### `impl<'a, B> Clone for Cow<'a, B> where B: ToOwned + ?Sized`
[src]

#### `fn clone(&self) -> Cow<'a, B>`

Returns a copy of the value. Read more

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

Performs copy-assignment from `source`. Read more

### `impl<'a, B> Debug for Cow<'a, B> where B: Debug + ToOwned + ?Sized,
B::Owned: Debug`
[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result<(), Error>`

Formats the value using the given formatter.

### `impl<'a, B> Deref for Cow<'a, B> where B: ToOwned + ?Sized`
[src]

#### `type Target = B`

The resulting type after dereferencing

#### `fn deref(&self) -> &B`

The method called to dereference a value

### `impl<'a> From<&'a str> for Cow<'a, str>`
[src]

#### `fn from(s: &'a str) -> Cow<'a, str>`

Performs the conversion.

### `impl<'a> From<String> for Cow<'a, str>`
[src]

#### `fn from(s: String) -> Cow<'a, str>`

Performs the conversion.

### `impl<'a, T> From<&'a [T]> for Cow<'a, [T]> where T: Clone`
1.7.0
[src]

#### `fn from(s: &'a [T]) -> Cow<'a, [T]>`

Performs the conversion.

### `impl<'a, T> From<Vec<T>> for Cow<'a, [T]> where T: Clone`
1.7.0
[src]

#### `fn from(v: Vec<T>) -> Cow<'a, [T]>`

Performs the conversion.

### `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>`

This method returns an ordering between `self` and `other` values if one exists. Read more

#### `fn lt(&self, other: &Rhs) -> bool`

This method tests less than (for `self` and `other`) and is used by the `<` operator. Read more

#### `fn le(&self, other: &Rhs) -> bool`

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`

This method tests greater than (for `self` and `other`) and is used by the `>` operator. Read more

#### `fn ge(&self, other: &Rhs) -> bool`

This method tests greater than or equal to (for `self` and `other`) and is used by the `>=` operator. Read more

### `impl<'a, T> AsRef<T> for Cow<'a, T> where T: ToOwned + ?Sized`
[src]

#### `fn as_ref(&self) -> &T`

Performs the conversion.

### `impl<'a, 'b> PartialEq<OsStr> for Cow<'a, OsStr>`
1.8.0
[src]

#### `fn eq(&self, other: &OsStr) -> bool`

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

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

This method tests for `!=`.

### `impl<'a, 'b> PartialOrd<OsStr> for Cow<'a, OsStr>`
1.8.0
[src]

#### `fn partial_cmp(&self, other: &OsStr) -> Option<Ordering>`

This method returns an ordering between `self` and `other` values if one exists. Read more

#### `fn lt(&self, other: &Rhs) -> bool`

This method tests less than (for `self` and `other`) and is used by the `<` operator. Read more

#### `fn le(&self, other: &Rhs) -> bool`

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`

This method tests greater than (for `self` and `other`) and is used by the `>` operator. Read more

#### `fn ge(&self, other: &Rhs) -> bool`

This method tests greater than or equal to (for `self` and `other`) and is used by the `>=` operator. Read more

### `impl<'a, 'b> PartialEq<&'b OsStr> for Cow<'a, OsStr>`
1.8.0
[src]

#### `fn eq(&self, other: &&'b OsStr) -> bool`

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

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

This method tests for `!=`.

### `impl<'a, 'b> PartialOrd<&'b OsStr> for Cow<'a, OsStr>`
1.8.0
[src]

#### `fn partial_cmp(&self, other: &&'b OsStr) -> Option<Ordering>`

This method returns an ordering between `self` and `other` values if one exists. Read more

#### `fn lt(&self, other: &Rhs) -> bool`

This method tests less than (for `self` and `other`) and is used by the `<` operator. Read more

#### `fn le(&self, other: &Rhs) -> bool`

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`

This method tests greater than (for `self` and `other`) and is used by the `>` operator. Read more

#### `fn ge(&self, other: &Rhs) -> bool`

This method tests greater than or equal to (for `self` and `other`) and is used by the `>=` operator. Read more

### `impl<'a, 'b> PartialEq<OsString> for Cow<'a, OsStr>`
1.8.0
[src]

#### `fn eq(&self, other: &OsString) -> bool`

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

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

This method tests for `!=`.

### `impl<'a, 'b> PartialOrd<OsString> for Cow<'a, OsStr>`
1.8.0
[src]

#### `fn partial_cmp(&self, other: &OsString) -> Option<Ordering>`

This method returns an ordering between `self` and `other` values if one exists. Read more

#### `fn lt(&self, other: &Rhs) -> bool`

This method tests less than (for `self` and `other`) and is used by the `<` operator. Read more

#### `fn le(&self, other: &Rhs) -> bool`

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`

This method tests greater than (for `self` and `other`) and is used by the `>` operator. Read more

#### `fn ge(&self, other: &Rhs) -> bool`

This method tests greater than or equal to (for `self` and `other`) and is used by the `>=` operator. Read more

### `impl<'a> From<&'a Path> for Cow<'a, Path>`
1.6.0
[src]

#### `fn from(s: &'a Path) -> Cow<'a, Path>`

Performs the conversion.

### `impl<'a> From<PathBuf> for Cow<'a, Path>`
1.6.0
[src]

#### `fn from(s: PathBuf) -> Cow<'a, Path>`

Performs the conversion.

### `impl<'a> AsRef<Path> for Cow<'a, OsStr>`
1.8.0
[src]

#### `fn as_ref(&self) -> &Path`

Performs the conversion.

### `impl<'a, 'b> PartialEq<Path> for Cow<'a, Path>`
1.6.0
[src]

#### `fn eq(&self, other: &Path) -> bool`

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

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

This method tests for `!=`.

### `impl<'a, 'b> PartialOrd<Path> for Cow<'a, Path>`
1.8.0
[src]

#### `fn partial_cmp(&self, other: &Path) -> Option<Ordering>`

This method returns an ordering between `self` and `other` values if one exists. Read more

#### `fn lt(&self, other: &Rhs) -> bool`

This method tests less than (for `self` and `other`) and is used by the `<` operator. Read more

#### `fn le(&self, other: &Rhs) -> bool`

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`

This method tests greater than (for `self` and `other`) and is used by the `>` operator. Read more

#### `fn ge(&self, other: &Rhs) -> bool`

This method tests greater than or equal to (for `self` and `other`) and is used by the `>=` operator. Read more

### `impl<'a, 'b> PartialEq<&'b Path> for Cow<'a, Path>`
1.6.0
[src]

#### `fn eq(&self, other: &&'b Path) -> bool`

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

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

This method tests for `!=`.

### `impl<'a, 'b> PartialOrd<&'b Path> for Cow<'a, Path>`
1.8.0
[src]

#### `fn partial_cmp(&self, other: &&'b Path) -> Option<Ordering>`

This method returns an ordering between `self` and `other` values if one exists. Read more

#### `fn lt(&self, other: &Rhs) -> bool`

This method tests less than (for `self` and `other`) and is used by the `<` operator. Read more

#### `fn le(&self, other: &Rhs) -> bool`

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`

This method tests greater than (for `self` and `other`) and is used by the `>` operator. Read more

#### `fn ge(&self, other: &Rhs) -> bool`

This method tests greater than or equal to (for `self` and `other`) and is used by the `>=` operator. Read more

### `impl<'a, 'b> PartialEq<PathBuf> for Cow<'a, Path>`
1.6.0
[src]

#### `fn eq(&self, other: &PathBuf) -> bool`

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

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

This method tests for `!=`.

### `impl<'a, 'b> PartialOrd<PathBuf> for Cow<'a, Path>`
1.8.0
[src]

#### `fn partial_cmp(&self, other: &PathBuf) -> Option<Ordering>`

This method returns an ordering between `self` and `other` values if one exists. Read more

#### `fn lt(&self, other: &Rhs) -> bool`

This method tests less than (for `self` and `other`) and is used by the `<` operator. Read more

#### `fn le(&self, other: &Rhs) -> bool`

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`

This method tests greater than (for `self` and `other`) and is used by the `>` operator. Read more

#### `fn ge(&self, other: &Rhs) -> bool`

This method tests greater than or equal to (for `self` and `other`) and is used by the `>=` operator. Read more

### `impl<'a, 'b> PartialEq<PathBuf> for Cow<'a, OsStr>`
1.8.0
[src]

#### `fn eq(&self, other: &PathBuf) -> bool`

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

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

This method tests for `!=`.

### `impl<'a, 'b> PartialOrd<PathBuf> for Cow<'a, OsStr>`
1.8.0
[src]

#### `fn partial_cmp(&self, other: &PathBuf) -> Option<Ordering>`

This method returns an ordering between `self` and `other` values if one exists. Read more

#### `fn lt(&self, other: &Rhs) -> bool`

This method tests less than (for `self` and `other`) and is used by the `<` operator. Read more

#### `fn le(&self, other: &Rhs) -> bool`

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`

This method tests greater than (for `self` and `other`) and is used by the `>` operator. Read more

#### `fn ge(&self, other: &Rhs) -> bool`

This method tests greater than or equal to (for `self` and `other`) and is used by the `>=` operator. Read more

### `impl<'a, 'b> PartialEq<Path> for Cow<'a, OsStr>`
1.8.0
[src]

#### `fn eq(&self, other: &Path) -> bool`

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

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

This method tests for `!=`.

### `impl<'a, 'b> PartialOrd<Path> for Cow<'a, OsStr>`
1.8.0
[src]

#### `fn partial_cmp(&self, other: &Path) -> Option<Ordering>`

This method returns an ordering between `self` and `other` values if one exists. Read more

#### `fn lt(&self, other: &Rhs) -> bool`

This method tests less than (for `self` and `other`) and is used by the `<` operator. Read more

#### `fn le(&self, other: &Rhs) -> bool`

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`

This method tests greater than (for `self` and `other`) and is used by the `>` operator. Read more

#### `fn ge(&self, other: &Rhs) -> bool`

This method tests greater than or equal to (for `self` and `other`) and is used by the `>=` operator. Read more

### `impl<'a, 'b> PartialEq<&'a Path> for Cow<'b, OsStr>`
1.8.0
[src]

#### `fn eq(&self, other: &&'a Path) -> bool`

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

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

This method tests for `!=`.

### `impl<'a, 'b> PartialOrd<&'a Path> for Cow<'b, OsStr>`
1.8.0
[src]

#### `fn partial_cmp(&self, other: &&'a Path) -> Option<Ordering>`

This method returns an ordering between `self` and `other` values if one exists. Read more

#### `fn lt(&self, other: &Rhs) -> bool`

This method tests less than (for `self` and `other`) and is used by the `<` operator. Read more

#### `fn le(&self, other: &Rhs) -> bool`

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`

This method tests greater than (for `self` and `other`) and is used by the `>` operator. Read more

#### `fn ge(&self, other: &Rhs) -> bool`

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, Path>`
1.8.0
[src]

#### `fn eq(&self, other: &OsStr) -> bool`

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

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

This method tests for `!=`.

### `impl<'a, 'b> PartialOrd<OsStr> for Cow<'a, Path>`
1.8.0
[src]

#### `fn partial_cmp(&self, other: &OsStr) -> Option<Ordering>`

This method returns an ordering between `self` and `other` values if one exists. Read more

#### `fn lt(&self, other: &Rhs) -> bool`

This method tests less than (for `self` and `other`) and is used by the `<` operator. Read more

#### `fn le(&self, other: &Rhs) -> bool`

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`

This method tests greater than (for `self` and `other`) and is used by the `>` operator. Read more

#### `fn ge(&self, other: &Rhs) -> bool`

This method tests greater than or equal to (for `self` and `other`) and is used by the `>=` operator. Read more

### `impl<'a, 'b> PartialEq<&'b OsStr> for Cow<'a, Path>`
1.8.0
[src]

#### `fn eq(&self, other: &&'b OsStr) -> bool`

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

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

This method tests for `!=`.

### `impl<'a, 'b> PartialOrd<&'b OsStr> for Cow<'a, Path>`
1.8.0
[src]

#### `fn partial_cmp(&self, other: &&'b OsStr) -> Option<Ordering>`

This method returns an ordering between `self` and `other` values if one exists. Read more

#### `fn lt(&self, other: &Rhs) -> bool`

This method tests less than (for `self` and `other`) and is used by the `<` operator. Read more

#### `fn le(&self, other: &Rhs) -> bool`

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`

This method tests greater than (for `self` and `other`) and is used by the `>` operator. Read more

#### `fn ge(&self, other: &Rhs) -> bool`

This method tests greater than or equal to (for `self` and `other`) and is used by the `>=` operator. Read more

### `impl<'a, 'b> PartialEq<OsString> for Cow<'a, Path>`
1.8.0
[src]

#### `fn eq(&self, other: &OsString) -> bool`

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

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

This method tests for `!=`.

### `impl<'a, 'b> PartialOrd<OsString> for Cow<'a, Path>`
1.8.0
[src]

#### `fn partial_cmp(&self, other: &OsString) -> Option<Ordering>`

This method returns an ordering between `self` and `other` values if one exists. Read more

#### `fn lt(&self, other: &Rhs) -> bool`

This method tests less than (for `self` and `other`) and is used by the `<` operator. Read more

#### `fn le(&self, other: &Rhs) -> bool`

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`

This method tests greater than (for `self` and `other`) and is used by the `>` operator. Read more

#### `fn ge(&self, other: &Rhs) -> bool`

This method tests greater than or equal to (for `self` and `other`) and is used by the `>=` operator. Read more

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