use crate::natural::Natural;
use malachite_base::num::arithmetic::traits::{ModPowerOf2MulAssign, ModPowerOf2SquareAssign};
use malachite_base::num::basic::traits::{One, Zero};
use malachite_base::num::logic::traits::BitIterable;
pub fn simple_binary_mod_power_of_2_pow(x: &Natural, exp: &Natural, pow: u64) -> Natural {
if pow == 0 {
return Natural::ZERO;
}
let mut out = Natural::ONE;
for bit in exp.bits().rev() {
out.mod_power_of_2_square_assign(pow);
if bit {
out.mod_power_of_2_mul_assign(x, pow);
}
}
out
}