1use base2k::vmp::VectorMatrixProduct;
 2use base2k::{Free, Matrix3D, Module, VecZnx, VecZnxBig, VecZnxDft, VmpPMat, FFT64};
 3use std::cmp::min;
 4
 5fn main() {
 6    let log_n = 5;
 7    let n = 1 << log_n;
 8
 9    let module: Module = Module::new::<FFT64>(n);
10    let log_base2k: usize = 15;
11    let limbs: usize = 5;
12    let log_k: usize = log_base2k * limbs - 5;
13
14    let rows: usize = limbs;
15    let cols: usize = limbs + 1;
16
17    // Maximum size of the byte scratch needed
18    let tmp_bytes: usize = module.vmp_prepare_contiguous_tmp_bytes(rows, cols)
19        | module.vmp_apply_dft_tmp_bytes(limbs, limbs, rows, cols);
20
21    let mut buf: Vec<u8> = vec![0; tmp_bytes];
22
23    let mut a_values: Vec<i64> = vec![i64::default(); n];
24    a_values[1] = (1 << log_base2k) + 1;
25
26    let mut a: VecZnx = module.new_vec_znx(limbs);
27    a.from_i64(log_base2k, &a_values, 32, log_k);
28    a.normalize(log_base2k, &mut buf);
29
30    (0..a.limbs()).for_each(|i| println!("{}: {:?}", i, a.at(i)));
31
32    let mut b_mat: Matrix3D<i64> = Matrix3D::new(rows, cols, n);
33
34    (0..min(rows, cols)).for_each(|i| {
35        b_mat.at_mut(i, i)[1] = 1 as i64;
36    });
37
38    let mut vmp_pmat: VmpPMat = module.new_vmp_pmat(rows, cols);
39    module.vmp_prepare_contiguous(&mut vmp_pmat, &b_mat.data, &mut buf);
40
41    let mut c_dft: VecZnxDft = module.new_vec_znx_dft(cols);
42    module.vmp_apply_dft(&mut c_dft, &a, &vmp_pmat, &mut buf);
43
44    let mut c_big: VecZnxBig = c_dft.as_vec_znx_big();
45    module.vec_znx_idft_tmp_a(&mut c_big, &mut c_dft, cols);
46
47    let mut res: VecZnx = module.new_vec_znx(cols);
48    module.vec_znx_big_normalize(log_base2k, &mut res, &c_big, &mut buf);
49
50    let mut values_res: Vec<i64> = vec![i64::default(); n];
51    res.to_i64(log_base2k, &mut values_res, log_k);
52
53    (0..res.limbs()).for_each(|i| println!("{}: {:?}", i, res.at(i)));
54
55    module.free();
56    c_dft.free();
57    vmp_pmat.free();
58
59    //println!("{:?}", values_res)
60}