A port of Patashu's break_infinity.js to Rust. It has the Decimal struct which is able to reach a maximum value of 1e9e15 instead of f64's maximum of 1.79e308.

You can install this package via Cargo by adding these lines to your Cargo.toml.

[dependencies]
break_infinity = "0.3.0"
# ...

• full-range: Increases maximum value to 1e1.79e308. Reduced accuracy above 1e9e15
• serde: Enables Serialization and Deserialization with Serde

This library allows simple creation of Decimal's through many different methods.

use break_infinity::Decimal;

fn main() {
	let x = Decimal::new(123.4567);
	let y = Decimal::from_str("123456.7e-3").expect("Failed to parse Decimal");
}

Methods that return a Decimal can also be chained

use break_infinity as bi;

fn main() {
	let short = ((x / &y + &z) * &Decimal::new(9.0)).floor();
	let long = x.ceil()
		.exp()
		.log10();
}

For a complete list of functions and methods, refer to the docs.

Patashu and Razenpok for creating the original break_infinity.js that this is based off of.