method isize.signum

-1, 0 or 1 for a negative, zero or positive value.

Example:

fn main() io {
  let neg: isize = -5
  let zero: isize = 0
  let pos: isize = 9
  print("{neg.signum()} {zero.signum()} {pos.signum()}")
}

-1 0 1

pub(api) fn signum() -> isize

Complexity. O(1).

Since. 1.0.0-beta

Returns

isize

Effects

none declared (pure unless the body says otherwise)

Defined in: std/core/numbers.oxl:1631