Trait frame_support::traits::DefensiveMin
source · pub trait DefensiveMin<T> {
fn defensive_min(self, other: T) -> Self;
fn defensive_strict_min(self, other: T) -> Self;
}Expand description
Defensively calculates the minimum of two values.
Can be used in contexts where we assume the receiver value to be (strictly) smaller.
Required Methods§
sourcefn defensive_min(self, other: T) -> Self
fn defensive_min(self, other: T) -> Self
Returns the minimum and defensively checks that self is not larger than other.
Example
use frame_support::traits::DefensiveMin;
// min(3, 4) is 3.
assert_eq!(3, 3_u32.defensive_min(4_u32));
// min(4, 4) is 4.
assert_eq!(4, 4_u32.defensive_min(4_u32));use frame_support::traits::DefensiveMin;
// min(4, 3) panics.
4_u32.defensive_min(3_u32);
sourcefn defensive_strict_min(self, other: T) -> Self
fn defensive_strict_min(self, other: T) -> Self
Returns the minimum and defensively checks that self is smaller than other.
Example
use frame_support::traits::DefensiveMin;
// min(3, 4) is 3.
assert_eq!(3, 3_u32.defensive_strict_min(4_u32));use frame_support::traits::DefensiveMin;
// min(4, 4) panics.
4_u32.defensive_strict_min(4_u32);