Trait num_integer::Average
source · [−]pub trait Average: Integer {
fn average_ceil(&self, other: &Self) -> Self;
fn average_floor(&self, other: &Self) -> Self;
}Expand description
Provides methods to compute the average of two integers, without overflows.
Required methods
fn average_ceil(&self, other: &Self) -> Self
fn average_ceil(&self, other: &Self) -> Self
Returns the ceiling value of the average of self and other.
– ⌈(self + other)/2⌉
Examples
use num_integer::Average;
assert_eq!(( 3).average_ceil(&10), 7);
assert_eq!((-2).average_ceil(&-5), -3);
assert_eq!(( 4).average_ceil(& 4), 4);
assert_eq!(u8::max_value().average_ceil(&2), 129);
assert_eq!(i8::min_value().average_ceil(&-1), -64);
assert_eq!(i8::min_value().average_ceil(&i8::max_value()), 0);fn average_floor(&self, other: &Self) -> Self
fn average_floor(&self, other: &Self) -> Self
Returns the floor value of the average of self and other.
– ⌊(self + other)/2⌋
Examples
use num_integer::Average;
assert_eq!(( 3).average_floor(&10), 6);
assert_eq!((-2).average_floor(&-5), -4);
assert_eq!(( 4).average_floor(& 4), 4);
assert_eq!(u8::max_value().average_floor(&2), 128);
assert_eq!(i8::min_value().average_floor(&-1), -65);
assert_eq!(i8::min_value().average_floor(&i8::max_value()), -1);