# Struct std::ffi::OsStr 1.0.0[−][src]

    pub struct OsStr { /* fields omitted */ }

Borrowed reference to an OS string (see `OsString`).

This type represents a borrowed reference to a string in the operating system's preferred representation.

`&OsStr` is to `OsString` as `&str` is to `String`: the former in each pair are borrowed references; the latter are owned strings.

See the module's toplevel documentation about conversions for a discussion on the traits which `OsStr` implements for conversions from/to native representations.

## Implementations

### `impl OsStr`[src]

#### `pub fn new<S: AsRef<OsStr> + ?Sized>(s: &S) -> &OsStr`[src]

Coerces into an `OsStr` slice.

# Examples

    use std::ffi::OsStr;

    let os_str = OsStr::new("foo");

Run

#### `pub fn to_str(&self) -> Option<&str>`[src]

Yields a `&str` slice if the `OsStr` is valid Unicode.

This conversion may entail doing a check for UTF-8 validity.

# Examples

    use std::ffi::OsStr;

    let os_str = OsStr::new("foo");
    assert_eq!(os_str.to_str(), Some("foo"));

Run

#### `pub fn to_string_lossy(&self) -> Cow<'_, str>`[src]

Converts an `OsStr` to a `Cow``<``str``>`.

Any non-Unicode sequences are replaced with `U+FFFD REPLACEMENT CHARACTER`.

# Examples

Calling `to_string_lossy` on an `OsStr` with invalid unicode:

    // Note, due to differences in how Unix and Windows represent strings,
    // we are forced to complicate this example, setting up example `OsStr`s
    // with different source data and via different platform extensions.
    // Understand that in reality you could end up with such example invalid
    // sequences simply through collecting user command line arguments, for
    // example.

    #[cfg(any(unix, target_os = "redox"))] {
        use std::ffi::OsStr;
        use std::os::unix::ffi::OsStrExt;

        // Here, the values 0x66 and 0x6f correspond to 'f' and 'o'
        // respectively. The value 0x80 is a lone continuation byte, invalid
        // in a UTF-8 sequence.
        let source = [0x66, 0x6f, 0x80, 0x6f];
        let os_str = OsStr::from_bytes(&source[..]);

        assert_eq!(os_str.to_string_lossy(), "fo�o");
    }
    #[cfg(windows)] {
        use std::ffi::OsString;
        use std::os::windows::prelude::*;

        // Here the values 0x0066 and 0x006f correspond to 'f' and 'o'
        // respectively. The value 0xD800 is a lone surrogate half, invalid
        // in a UTF-16 sequence.
        let source = [0x0066, 0x006f, 0xD800, 0x006f];
        let os_string = OsString::from_wide(&source[..]);
        let os_str = os_string.as_os_str();

        assert_eq!(os_str.to_string_lossy(), "fo�o");
    }

Run

#### `pub fn to_os_string(&self) -> OsString`[src]

Copies the slice into an owned `OsString`.

# Examples

    use std::ffi::{OsStr, OsString};

    let os_str = OsStr::new("foo");
    let os_string = os_str.to_os_string();
    assert_eq!(os_string, OsString::from("foo"));

Run

#### `pub fn is_empty(&self) -> bool` 1.9.0[src]

Checks whether the `OsStr` is empty.

# Examples

    use std::ffi::OsStr;

    let os_str = OsStr::new("");
    assert!(os_str.is_empty());

    let os_str = OsStr::new("foo");
    assert!(!os_str.is_empty());

Run

#### `pub fn len(&self) -> usize` 1.9.0[src]

Returns the length of this `OsStr`.

Note that this does not return the number of bytes in the string in OS string form.

The length returned is that of the underlying storage used by `OsStr`. As discussed in the `OsString` introduction, `OsString` and `OsStr` store strings in a form best suited for cheap inter-conversion between native-platform and Rust string forms, which may differ significantly from both of them, including in storage size and encoding.

This number is simply useful for passing to other methods, like `OsString::with_capacity` to avoid reallocations.

# Examples

    use std::ffi::OsStr;

    let os_str = OsStr::new("");
    assert_eq!(os_str.len(), 0);

    let os_str = OsStr::new("foo");
    assert_eq!(os_str.len(), 3);

Run

#### `pub fn into_os_string(self: Box<OsStr>) -> OsString` 1.20.0[src]

Converts a `Box``<OsStr>` into an `OsString` without copying or allocating.

#### `pub fn make_ascii_lowercase(&mut self)`[src]

🔬 This is a nightly-only experimental API. (`osstring_ascii` #70516)

Converts this string to its ASCII lower case equivalent in-place.

ASCII letters 'A' to 'Z' are mapped to 'a' to 'z', but non-ASCII letters are unchanged.

To return a new lowercased value without modifying the existing one, use `OsStr::to_ascii_lowercase`.

# Examples

    #![feature(osstring_ascii)]
    use std::ffi::OsString;

    let mut s = OsString::from("GRÜßE, JÜRGEN ❤");

    s.make_ascii_lowercase();

    assert_eq!("grÜße, jÜrgen ❤", s);

Run

#### `pub fn make_ascii_uppercase(&mut self)`[src]

🔬 This is a nightly-only experimental API. (`osstring_ascii` #70516)

Converts this string to its ASCII upper case equivalent in-place.

ASCII letters 'a' to 'z' are mapped to 'A' to 'Z', but non-ASCII letters are unchanged.

To return a new uppercased value without modifying the existing one, use `OsStr::to_ascii_uppercase`.

# Examples

    #![feature(osstring_ascii)]
    use std::ffi::OsString;

    let mut s = OsString::from("Grüße, Jürgen ❤");

    s.make_ascii_uppercase();

    assert_eq!("GRüßE, JüRGEN ❤", s);

Run

#### `pub fn to_ascii_lowercase(&self) -> OsString`[src]

🔬 This is a nightly-only experimental API. (`osstring_ascii` #70516)

Returns a copy of this string where each character is mapped to its ASCII lower case equivalent.

ASCII letters 'A' to 'Z' are mapped to 'a' to 'z', but non-ASCII letters are unchanged.

To lowercase the value in-place, use `OsStr::make_ascii_lowercase`.

# Examples

    #![feature(osstring_ascii)]
    use std::ffi::OsString;
    let s = OsString::from("Grüße, Jürgen ❤");

    assert_eq!("grüße, jürgen ❤", s.to_ascii_lowercase());

Run

#### `pub fn to_ascii_uppercase(&self) -> OsString`[src]

🔬 This is a nightly-only experimental API. (`osstring_ascii` #70516)

Returns a copy of this string where each character is mapped to its ASCII upper case equivalent.

ASCII letters 'a' to 'z' are mapped to 'A' to 'Z', but non-ASCII letters are unchanged.

To uppercase the value in-place, use `OsStr::make_ascii_uppercase`.

# Examples

    #![feature(osstring_ascii)]
    use std::ffi::OsString;
    let s = OsString::from("Grüße, Jürgen ❤");

    assert_eq!("GRüßE, JüRGEN ❤", s.to_ascii_uppercase());

Run

#### `pub fn is_ascii(&self) -> bool`[src]

🔬 This is a nightly-only experimental API. (`osstring_ascii` #70516)

Checks if all characters in this string are within the ASCII range.

# Examples

    #![feature(osstring_ascii)]
    use std::ffi::OsString;

    let ascii = OsString::from("hello!\n");
    let non_ascii = OsString::from("Grüße, Jürgen ❤");

    assert!(ascii.is_ascii());
    assert!(!non_ascii.is_ascii());

Run

#### `pub fn eq_ignore_ascii_case<S: AsRef<OsStr>>(&self, other: S) -> bool`[src]

🔬 This is a nightly-only experimental API. (`osstring_ascii` #70516)

Checks that two strings are an ASCII case-insensitive match.

Same as `to_ascii_lowercase(a) == to_ascii_lowercase(b)`, but without allocating and copying temporaries.

# Examples

    #![feature(osstring_ascii)]
    use std::ffi::OsString;

    assert!(OsString::from("Ferris").eq_ignore_ascii_case("FERRIS"));
    assert!(OsString::from("Ferrös").eq_ignore_ascii_case("FERRöS"));
    assert!(!OsString::from("Ferrös").eq_ignore_ascii_case("FERRÖS"));

Run

## Trait Implementations

### `impl AsRef<OsStr> for OsStr`[src]

#### `fn as_ref(&self) -> &OsStr`[src]

Performs the conversion.

### `impl AsRef<OsStr> for OsString`[src]

#### `fn as_ref(&self) -> &OsStr`[src]

Performs the conversion.

### `impl AsRef<OsStr> for str`[src]

#### `fn as_ref(&self) -> &OsStr`[src]

Performs the conversion.

### `impl AsRef<OsStr> for String`[src]

#### `fn as_ref(&self) -> &OsStr`[src]

Performs the conversion.

### `impl AsRef<OsStr> for Component<'_>`[src]

#### `fn as_ref(&self) -> &OsStr`[src]

Performs the conversion.

### `impl AsRef<OsStr> for Components<'_>`[src]

#### `fn as_ref(&self) -> &OsStr`[src]

Performs the conversion.

### `impl AsRef<OsStr> for Iter<'_>`[src]

#### `fn as_ref(&self) -> &OsStr`[src]

Performs the conversion.

### `impl AsRef<OsStr> for PathBuf`[src]

#### `fn as_ref(&self) -> &OsStr`[src]

Performs the conversion.

### `impl AsRef<OsStr> for Path`[src]

#### `fn as_ref(&self) -> &OsStr`[src]

Performs the conversion.

### `impl AsRef<Path> for OsStr`[src]

#### `fn as_ref(&self) -> &Path`[src]

Performs the conversion.

### `impl Borrow<OsStr> for OsString`[src]

#### `fn borrow(&self) -> &OsStr`[src]

Immutably borrows from an owned value. Read more

### `impl Debug for OsStr`[src]

#### `fn fmt(&self, formatter: &mut Formatter<'_>) -> Result`[src]

Formats the value using the given formatter. Read more

### `impl Default for &OsStr` 1.9.0[src]

#### `fn default() -> Self`[src]

Creates an empty `OsStr`.

### `impl Eq for OsStr`[src]

### `impl From<&'_ OsStr> for Box<OsStr>`1.17.0[src]

#### `fn from(s: &OsStr) -> Box<OsStr>ⓘ

### Notable traits for Box<F, A>

`impl<F, A> Future for Box<F, A> where
F: Unpin + Future + ?Sized,
A: Allocator + 'static, type Output = <F as Future>::Output;impl<I, A> Iterator for Box<I, A> where
I: Iterator + ?Sized,
A: Allocator, type Item = <I as Iterator>::Item;impl<R: Read + ?Sized> Read for Box<R>impl<W: Write + ?Sized> Write for Box<W>`
`[src]

Performs the conversion.

### `impl From<&'_ OsStr> for Arc<OsStr>`1.24.0[src]

#### `fn from(s: &OsStr) -> Arc<OsStr>`[src]

Performs the conversion.

### `impl From<&'_ OsStr> for Rc<OsStr>`1.24.0[src]

#### `fn from(s: &OsStr) -> Rc<OsStr>`[src]

Performs the conversion.

### `impl<'a> From<&'a OsStr> for Cow<'a, OsStr>`1.28.0[src]

#### `fn from(s: &'a OsStr) -> Cow<'a, OsStr>`[src]

Performs the conversion.

### `impl Hash for OsStr`[src]

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

Feeds this value into the given `Hasher`. Read more

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

Feeds a slice of this type into the given `Hasher`. Read more

### `impl Ord for OsStr`[src]

#### `fn cmp(&self, other: &OsStr) -> Ordering`[src]

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

#### `#[must_use]pub fn max(self, other: Self) -> Self` 1.21.0[src]

Compares and returns the maximum of two values. Read more

#### `#[must_use]pub fn min(self, other: Self) -> Self` 1.21.0[src]

Compares and returns the minimum of two values. Read more

#### `#[must_use]pub fn clamp(self, min: Self, max: Self) -> Self` 1.50.0[src]

Restrict a value to a certain interval. Read more

### `impl OsStrExt for OsStr`[src]

#### `fn from_bytes(slice: &[u8]) -> &OsStr`[src]

This is supported on Unix only.

Creates an `OsStr` from a byte slice. Read more

#### `fn as_bytes(&self) -> &[u8]ⓘ

### Notable traits for &[u8]

`impl Read for &[u8]impl Write for &mut [u8]`
`[src]

This is supported on Unix only.

Gets the underlying byte view of the `OsStr` slice. Read more

### `impl OsStrExt for OsStr`[src]

This is supported on Windows only.

#### `fn encode_wide(&self) -> EncodeWide<'_>ⓘ

### Notable traits for EncodeWide<'a>

`impl<'a> Iterator for EncodeWide<'a> type Item = u16;`
`[src]

Re-encodes an `OsStr` as a wide character sequence, i.e., potentially ill-formed UTF-16. Read more

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

#### `fn eq(&self, other: &&'a OsStr) -> bool`[src]

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

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

#### `fn eq(&self, other: &&'a OsStr) -> bool`[src]

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

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

#### `fn eq(&self, other: &&'a OsStr) -> bool`[src]

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

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

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

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

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

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

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

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

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

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

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

#### `fn eq(&self, other: &Cow<'a, OsStr>) -> bool`[src]

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

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

#### `fn eq(&self, other: &Cow<'a, OsStr>) -> bool`[src]

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

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

#### `fn eq(&self, other: &Cow<'a, Path>) -> bool`[src]

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

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

#### `fn eq(&self, other: &Cow<'a, Path>) -> bool`[src]

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

### `impl PartialEq<OsStr> for OsStr`[src]

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

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

### `impl PartialEq<OsStr> for str`[src]

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

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

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

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

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

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

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

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

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

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

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

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

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

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

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

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

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

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

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

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

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

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

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

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

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

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

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

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

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

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

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

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

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

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

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

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

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

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

### `impl PartialEq<str> for OsStr`[src]

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

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

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool`[src]

This method tests for `!=`.

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

#### `fn partial_cmp(&self, other: &&'a OsStr) -> Option<Ordering>`[src]

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

#### `#[must_use]pub fn lt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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

#### `#[must_use]pub fn gt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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 OsStr> for PathBuf` 1.8.0[src]

#### `fn partial_cmp(&self, other: &&'a OsStr) -> Option<Ordering>`[src]

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

#### `#[must_use]pub fn lt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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

#### `#[must_use]pub fn gt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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 OsStr> for Path` 1.8.0[src]

#### `fn partial_cmp(&self, other: &&'a OsStr) -> Option<Ordering>`[src]

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

#### `#[must_use]pub fn lt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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

#### `#[must_use]pub fn gt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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 OsStr` 1.8.0[src]

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

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

#### `#[must_use]pub fn lt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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

#### `#[must_use]pub fn gt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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>`1.8.0[src]

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

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

#### `#[must_use]pub fn lt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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

#### `#[must_use]pub fn gt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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>`1.8.0[src]

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

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

#### `#[must_use]pub fn lt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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

#### `#[must_use]pub fn gt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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` 1.8.0[src]

#### `fn partial_cmp(&self, other: &Cow<'a, OsStr>) -> Option<Ordering>`[src]

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

#### `#[must_use]pub fn lt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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

#### `#[must_use]pub fn gt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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` 1.8.0[src]

#### `fn partial_cmp(&self, other: &Cow<'a, OsStr>) -> Option<Ordering>`[src]

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

#### `#[must_use]pub fn lt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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

#### `#[must_use]pub fn gt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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` 1.8.0[src]

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

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

#### `#[must_use]pub fn lt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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

#### `#[must_use]pub fn gt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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` 1.8.0[src]

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

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

#### `#[must_use]pub fn lt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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

#### `#[must_use]pub fn gt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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 PartialOrd<OsStr> for OsStr`[src]

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

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

#### `fn lt(&self, other: &OsStr) -> bool`[src]

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

#### `fn le(&self, other: &OsStr) -> 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: &OsStr) -> bool`[src]

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

#### `fn ge(&self, other: &OsStr) -> 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 OsString` 1.8.0[src]

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

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

#### `#[must_use]pub fn lt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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

#### `#[must_use]pub fn gt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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, OsStr>`1.8.0[src]

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

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

#### `#[must_use]pub fn lt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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

#### `#[must_use]pub fn gt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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 PathBuf` 1.8.0[src]

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

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

#### `#[must_use]pub fn lt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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

#### `#[must_use]pub fn gt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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 Path` 1.8.0[src]

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

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

#### `#[must_use]pub fn lt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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

#### `#[must_use]pub fn gt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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 &'a Path` 1.8.0[src]

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

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

#### `#[must_use]pub fn lt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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

#### `#[must_use]pub fn gt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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>`1.8.0[src]

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

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

#### `#[must_use]pub fn lt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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

#### `#[must_use]pub fn gt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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 OsStr` 1.8.0[src]

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

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

#### `#[must_use]pub fn lt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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

#### `#[must_use]pub fn gt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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 &'a OsStr` 1.8.0[src]

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

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

#### `#[must_use]pub fn lt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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

#### `#[must_use]pub fn gt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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 OsStr` 1.8.0[src]

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

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

#### `#[must_use]pub fn lt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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

#### `#[must_use]pub fn gt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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 &'a OsStr` 1.8.0[src]

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

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

#### `#[must_use]pub fn lt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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

#### `#[must_use]pub fn gt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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 OsStr` 1.8.0[src]

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

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

#### `#[must_use]pub fn lt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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

#### `#[must_use]pub fn gt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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 &'a OsStr` 1.8.0[src]

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

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

#### `#[must_use]pub fn lt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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

#### `#[must_use]pub fn gt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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 PartialOrd<str> for OsStr`[src]

#### `fn partial_cmp(&self, other: &str) -> Option<Ordering>`[src]

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

#### `#[must_use]pub fn lt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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

#### `#[must_use]pub fn gt(&self, other: &Rhs) -> bool`[src]

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

#### `#[must_use]pub 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 ToOwned for OsStr`[src]

#### `type Owned = OsString`

The resulting type after obtaining ownership.

#### `fn to_owned(&self) -> OsString`[src]

Creates owned data from borrowed data, usually by cloning. Read more

#### `fn clone_into(&self, target: &mut OsString)`[src]

🔬 This is a nightly-only experimental API. (`toowned_clone_into` #41263)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

## Auto Trait Implementations

### `impl RefUnwindSafe for OsStr`[src]

### `impl Send for OsStr`[src]

### `impl Sync for OsStr`[src]

### `impl Unpin for OsStr`[src]

### `impl UnwindSafe for OsStr`[src]

## Blanket Implementations

### `impl<T> Any for T where
T: 'static + ?Sized,` [src]

#### `pub fn type_id(&self) -> TypeId`[src]

Gets the `TypeId` of `self`. Read more

### `impl<T> Borrow<T> for T where
T: ?Sized,` [src]

#### `pub fn borrow(&self) -> &Tⓘ

### Notable traits for &'_ mut F

`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 Rimpl<W: Write + ?Sized> Write for &mut W`
`[src]

Immutably borrows from an owned value. Read more

### `impl<T> BorrowMut<T> for T where
T: ?Sized,` [src]

#### `pub fn borrow_mut(&mut self) -> &mut Tⓘ

### Notable traits for &'_ mut F

`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 Rimpl<W: Write + ?Sized> Write for &mut W`
`[src]

Mutably borrows from an owned value. Read more