Function in num coil-stdlib

`signum`

fn signum(int x) -> int

fn signum(float x) -> float

Import

use num::{signum};

Returns -1, 0 or 1 by the sign of x.

Name	Type
`x`	`int`

int

Returns -1.0, 0.0 or 1.0 by the sign of x; a zero keeps its sign.

Name	Type
`x`	`float`

float

Examples#

use num::{signum};
use tests::assert;
assert!(signum(-8) == -1);
assert!(signum(0) == 0);

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).
round: Rounds x to the nearest whole number; halves round away from zero.
clamp: Returns x limited to the range lo..=hi.
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.