from_utf8_unchecked in alloc::str - Rust
Description: Converts a slice of bytes to a string slice without checking that the string contains valid UTF-8.

alloc::str

# Function from_utf8_unchecked

1.36.0 (const: 1.55.0) · Source

    pub const unsafe fn from_utf8_unchecked(v: &[u8]) -> &str

Expand description

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

See the safe version, `from_utf8`, for more information.

## §Safety

The bytes passed in must be valid UTF-8.

## §Examples

Basic usage:

    use std::str;

    // some bytes, in a vector
    let sparkle_heart = vec![240, 159, 146, 150];

    let sparkle_heart = unsafe {
        str::from_utf8_unchecked(&sparkle_heart)
    };

    assert_eq!("💖", sparkle_heart);