Function `round`

#[must_use = "method returns a new number and does not mutate the original value"]
pub const fn round(x: f32) -> f32

Experimental version of round in core. See f32::round for details.

Examples

#![feature(core_float_math)]

use core::f32;

let f = 3.3_f32;
let g = -3.3_f32;
let h = -3.7_f32;
let i = 3.5_f32;
let j = 4.5_f32;

assert_eq!(f32::math::round(f), 3.0);
assert_eq!(f32::math::round(g), -3.0);
assert_eq!(f32::math::round(h), -4.0);
assert_eq!(f32::math::round(i), 4.0);
assert_eq!(f32::math::round(j), 5.0);

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