method u64.saturating_sub

Subtraction that stops at the nearest bound of the type instead of panicking.

Example:

fn main() io {
  let max: u64 = 18446744073709551615
  let min: u64 = 0
  print("{min.saturating_sub(5)}")
}

0

pub(api) fn saturating_sub(o: u64) -> u64

Complexity. O(1).

Since. 1.0.0-beta

Parameters

Returns

u64

Effects

none declared (pure unless the body says otherwise)

Defined in: std/core/numbers.oxl:2225