Trait num_digitize::ToDigits [−] [src]

pub trait ToDigits where
    Self: Copy + Clone + Num + NumCast + DivAssign, {
    fn to_digits(&self) -> Vec<i8> { ... }
}

Provided Methods

Converts integer to Vec<i8> of its digits (base 10).

Example

Basic usage:

use num_digitize::ToDigits;

let number: u8 = 12;
let vector: Vec<i8> = vec![1, 2];
assert_eq!(number.to_digits(), vector);

Negative numbers return all the digits negative Vec<u8>:

use num_digitize::ToDigits;
let number = -12;
assert_eq!(number.to_digits(), vec![-1, -2]);

Reason for this is mathematically you can easily add these back to the original number like so:

-123 -> [-1, -2, -3]
(-1 * 10^2) + (-2 * 10^1) + (-3 * 10^0) = -123

Or with FromDigits trait.

Implementors