Function std::str::truncate_utf16_at_nul

pub fn truncate_utf16_at_nul<'a>(v: &'a [u16]) -> &'a [u16]

Return a slice of v ending at (and not including) the first NUL (0).

Example

use std::str;

// "abcd"
let mut v = ['a' as u16, 'b' as u16, 'c' as u16, 'd' as u16];
// no NULs so no change
assert_eq!(str::truncate_utf16_at_nul(v), v.as_slice());

// "ab\0d"
v[2] = 0;
assert_eq!(str::truncate_utf16_at_nul(v),
           &['a' as u16, 'b' as u16]);