# Trait std::os::windows::ffi::OsStrExt

1.0.0 · source ·

    pub trait OsStrExt: Sealed {
        // Required method
        fn encode_wide(&self) -> EncodeWide<'_> ⓘ;
    }

Available on Windows only.
Expand description

Windows-specific extensions to `OsStr`.

This trait is sealed: it cannot be implemented outside the standard library. This is so that future additional methods are not breaking changes.

## Required Methods§

source

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

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

This is lossless: calling `OsStringExt::from_wide` and then `encode_wide` on the result will yield the original code units. Note that the encoding does not add a final null terminator.

##### Examples

    use std::ffi::OsString;
    use std::os::windows::prelude::*;

    // UTF-16 encoding for "Unicode".
    let source = [0x0055, 0x006E, 0x0069, 0x0063, 0x006F, 0x0064, 0x0065];

    let string = OsString::from_wide(&source[..]);

    let result: Vec<u16> = string.encode_wide().collect();
    assert_eq!(&source[..], &result[..]);

Run

## Implementors§

source§

### impl OsStrExt for OsStr