Trait num_integer::Average [−][src]
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);