Crate rugrat

Arbitrary-precision rational numbers

The rugrat crate provides arbitrary-precision rational numbers using the GNU Multiple Precision Arithmetic Library (GMP). It can be helpful to refer to the documentation at the GMP page.

This crate is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This crate is one of a group of four crates:

• rugint for arbitrary-precision integers,
• rugrat for arbitrary-precision rational numbers,
• rugflo for multiple-precision floating-point numbers, and
• rugcom for multiple-precision complex numbers.

Basic use

The crate provides the Rational type, which holds an arbitrary-precision rational number.

Examples

extern crate rugint;
extern crate rugrat;
use rugint::Assign;
use rugrat::Rational;
 
fn main() {
    // Create a rational number, -22 / 4 = -11 / 2.
    let rat = Rational::from((-22, 4));
    assert!(rat.numer().to_i32() == -11);
    assert!(*rat.denom() == 2);
    assert!(rat.to_f32() == -5.5);
}

Structs

MutNumerDenom	Used to borrow the numerator and denominator of a Rational number mutably.
Rational	An arbitrary-precision rational number.