round

fn round(float x) -> float

use num::{round};

Rounds x to the nearest whole number; halves round away from zero.

Parameters#

Returns#

float

Examples#

use num::{round};
use tests::assert;
assert!(round(2.5) == 3.0);
assert!(round(-2.5) == -3.0);
assert!(round(2.4) == 2.0);

See also#

• abs: Returns the absolute value of x.
• min: Returns the smaller of a and b (a when they are equal).
• max: Returns the larger of a and b (a when they are equal).
• clamp: Returns x limited to the range lo..=hi.
• signum: Returns -1, 0 or 1 by the sign of x.
• gcd: Returns the greatest common divisor of a and b, which should be non-negative.
• lcm: Returns the least common multiple of a and b, which should be non-negative; 0 when either is 0.
• trunc: Removes the fractional part of x, rounding toward zero.