method isize.wrapping_sub

Subtraction that wraps around at the bounds of the type instead of panicking.

Example:

fn main() io {
  let max: isize = 9223372036854775807
  let min: isize = -9223372036854775808
  print("{min.wrapping_sub(1)}")
}

9223372036854775807

pub(api) fn wrapping_sub(o: isize) -> isize

Complexity. O(1).

Since. 1.0.0-beta

Parameters

Returns

isize

Effects

none declared (pure unless the body says otherwise)

Defined in: std/core/numbers.oxl:1491