fixed_decimal

fixed_decimal is a utility crate of the ICU4X project.

This crate provides Decimal and UnsignedDecimal, essential APIs for representing numbers in a human-readable format. These types are particularly useful for formatting and plural rule selection, and are optimized for operations on individual digits.

Examples

use fixed_decimal::Decimal;

let mut dec = Decimal::from(250);
dec.multiply_pow10(-2);
assert_eq!("2.50", format!("{}", dec));

#[derive(Debug, PartialEq)]
struct MagnitudeAndDigit(i16, u8);

let digits: Vec<MagnitudeAndDigit> = dec
    .magnitude_range()
    .map(|m| MagnitudeAndDigit(m, dec.digit_at(m)))
    .collect();

assert_eq!(
    vec![
        MagnitudeAndDigit(-2, 0),
        MagnitudeAndDigit(-1, 5),
        MagnitudeAndDigit(0, 2)
    ],
    digits
);

More Information

For more information on development, authorship, contributing etc. please visit ICU4X home page.