Function display_utils::collect_str

pub fn collect_str(buf: &mut [u8], object: impl Display) -> Result<&str, &str>

Write a Display object into a fixed-size buffer and returns the resulting &str.

Returns Ok if the object fully fits into the given buffer, and Err with the truncated string otherwise.

let mut buf = [0; 20];

assert_eq!(
    collect_str(&mut buf, format_args!("I have {} apples", 12)),
    Ok("I have 12 apples"),
);

assert_eq!(
    collect_str(&mut buf, format_args!("I have {} apples", 615233821)),
    Err("I have 615233821 app"),
);