bigint

Fixed-sized integers arithmetic

extern crate bigint;
use bigint::{U256, Uint};

fn main() {
	let mut val: U256 = 1023.into();
	for _ in 0..200 { val = val * 2.into() }
	assert_eq!(
		&format!("{}", val), 
		"1643897619276947051879427220465009342380213662639797070513307648"
	);
}