1pub mod impl_u64;
 2
 3use crate::modulus::prime::Prime;
 4use crate::poly::{Poly, PolyRNS};
 5use crate::dft::DFT;
 6
 7
 8pub struct Ring<O>{
 9    pub n:usize,
10    pub modulus:Prime<O>,
11    pub dft:Box<dyn DFT<O>>,
12}
13
14impl<O> Ring<O>{
15    pub fn n(&self) -> usize{
16        return self.n
17    }
18
19    pub fn new_poly(&self) -> Poly<u64>{
20        Poly::<u64>::new(self.n())
21    }
22}
23
24pub struct RingRNS<'a, O>(& 'a [Ring<O>]);
25
26impl<O: Copy> RingRNS<'_, O> {
27
28    pub fn n(&self) -> usize{
29        self.0[0].n()
30    }
31
32    pub fn new_polyrns(&self) -> PolyRNS<u64>{
33        PolyRNS::<u64>::new(self.n(), self.level())
34    }
35
36    pub fn max_level(&self) -> usize{
37        self.0.len()-1
38    }
39
40    pub fn level(&self) -> usize{
41        self.0.len()-1
42    }
43
44    pub fn at_level(&self, level:usize) -> RingRNS<O>{
45        assert!(level <= self.0.len());
46        RingRNS(&self.0[..level+1])
47    }
48}