Function round

pub fn round(x: f64) -> f64

🔬This is a nightly-only experimental API. (core_float_math #137578)

Experimental version of round in core. See f64::round for details.

Examples

#![feature(core_float_math)]

use core::f64;

let f = 3.3_f64;
let g = -3.3_f64;
let h = -3.7_f64;
let i = 3.5_f64;
let j = 4.5_f64;

assert_eq!(f64::math::round(f), 3.0);
assert_eq!(f64::math::round(g), -3.0);
assert_eq!(f64::math::round(h), -4.0);
assert_eq!(f64::math::round(i), 4.0);
assert_eq!(f64::math::round(j), 5.0);

This standalone function is for testing only. It will be stabilized as an inherent method.