Struct Absolute 

pub struct Absolute<'a, I: Signed> { /* private fields */ }

A pointer to absolute value of a number

use signed::Signed;

let mut n: i32 = 42; // A number to test operations with it

let mut abs_n = n.get_absolute(); // Gets a "pointer" to an absolute value of a number

abs_n -= &2;
drop(abs_n);

assert_eq!(n, 40);

let mut abs_n = n.get_absolute(); // Gets a "pointer" to an absolute value of a number

abs_n += &6;
drop(abs_n);

assert_eq!(n, 46);

n = -42; // Let's try with negative number

// Unfortunately, due to assertions, abs_n has to be dropped before immutable use, but when n
// is changed, abs_n is changed accordingly

let mut abs_n = n.get_absolute(); // Gets a "pointer" to an absolute value of a number

abs_n -= &4;
drop(abs_n);

assert_eq!(n, -38); // Now that's different, we subtracted, but got a number *bigger* than the initial one.

let mut abs_n = n.get_absolute(); // Gets a "pointer" to an absolute value of a number

abs_n += &6;
drop(abs_n);

assert_eq!(n, -44); // And by adding to the absolute value, we get a number *smaller*.

// All of this works for i8, i16, i32, i64 and i128!

Implementations

impl<'a, I: Signed> Absolute<'a, I>

pub fn get_value(&self) -> I::Unsigned

Get the value of an absolute of a number this absolute value has been taken of

Trait Implementations

impl<'a, I: Signed> AddAssign<&I> for Absolute<'a, I>

fn add_assign(&mut self, rhs: &I)

Performs the += operation.

impl<'a, I: Debug + Signed> Debug for Absolute<'a, I>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a, I: Signed> SubAssign<&I> for Absolute<'a, I>

fn sub_assign(&mut self, rhs: &I)

Performs the -= operation.