alloc::str::from_utf8_unchecked_mut - Rust
Description: API documentation for the Rust `from_utf8_unchecked_mut` fn in crate `alloc`.
Keywords: rust, rustlang, rust-lang, from_utf8_unchecked_mut

# Function alloc::str::from_utf8_unchecked_mut 1.20.0 [−] [src]

    pub unsafe fn from_utf8_unchecked_mut(v: &mut [u8]) -> &mut str

Converts a slice of bytes to a string slice without checking that the string contains valid UTF-8; mutable version.

See the immutable version, `from_utf8_unchecked()`, for more information.

# Examples

Basic usage:

    use std::str;

    let mut heart = vec![240, 159, 146, 150];
    let heart = unsafe { str::from_utf8_unchecked_mut(&mut heart) };

    assert_eq!("💖", heart);

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