double_shift_test.rs

extern crate time;
extern crate rand;
use time::PreciseTime;
use rand::Rng;

fn main() {
    for n in 0..101{
        let start_double_shift = PreciseTime::now();
        for n in 0..101 {
            let num = rand::thread_rng().gen_range(0, 255);
            //get the value of the third bit with 2 shifts
            let val = num << 6 >> 7;
        }
        let end_double_shift = PreciseTime::now();
        //println!("Start: {}", start_double_shift.to(end_double_shift));

        let start_and_shift = PreciseTime::now();
        for n in 0..101 {
            let num = rand::thread_rng().gen_range(0, 255);
            //get the value of the third bit with an AND and 1 shift
            let val = (num & 0x04) >> 2;
        }
        let end_and_shift = PreciseTime::now();

        println!("{},{},{}",n,start_double_shift.to(end_double_shift),start_and_shift.to(end_and_shift));
    }
}