Rust NonZeroI64.unsigned_abs用法及代碼示例

#![feature(nonzero_ops)]

let u_pos = NonZeroU64::new(1)?;
let i_pos = NonZeroI64::new(1)?;
let i_neg = NonZeroI64::new(-1)?;
let i_min = NonZeroI64::new(i64::MIN)?;
let u_max = NonZeroU64::new(u64::MAX / 2 + 1)?;

assert_eq!(u_pos, i_pos.unsigned_abs());
assert_eq!(u_pos, i_neg.unsigned_abs());
assert_eq!(u_max, i_min.unsigned_abs());