Macro format_utf16 

macro_rules! format_utf16 {
    (in $arena:expr, $($arg:tt)*) => { ... };
}

Available on crate feature utf16 only.

format!-style macro that writes into a fresh arena-backed Utf16String.

Freeze the result with Utf16String::into_boxed_utf16_str if you want an immutable Box<Utf16Str>.

Panics

Panics on allocation failure or if a formatter returns Err.

Example

use widestring::utf16str;
let arena = multitude::Arena::new();
let name = "Alice";
let s = multitude::strings::format_utf16!(in &arena, "Hello, {name}!");
assert_eq!(s.as_utf16_str(), utf16str!("Hello, Alice!"));