1use base2k::{
 2    Encoding, Free, Infos, Module, VecZnx, VecZnxApi, VecZnxBig, VecZnxBigOps, VecZnxDft,
 3    VecZnxDftOps, VecZnxOps, VmpPMat, VmpPMatOps, FFT64,
 4};
 5
 6fn main() {
 7    let log_n = 5;
 8    let n = 1 << log_n;
 9
10    let module: Module = Module::new::<FFT64>(n);
11    let log_base2k: usize = 15;
12    let limbs: usize = 5;
13    let log_k: usize = log_base2k * limbs - 5;
14
15    let rows: usize = limbs;
16    let cols: usize = limbs + 1;
17
18    // Maximum size of the byte scratch needed
19    let tmp_bytes: usize = module.vmp_prepare_tmp_bytes(rows, cols)
20        | module.vmp_apply_dft_tmp_bytes(limbs, limbs, rows, cols);
21
22    let mut buf: Vec<u8> = vec![0; tmp_bytes];
23
24    let mut a_values: Vec<i64> = vec![i64::default(); n];
25    a_values[1] = (1 << log_base2k) + 1;
26
27    let mut a: VecZnx = module.new_vec_znx(limbs);
28    a.encode_vec_i64(log_base2k, log_k, &a_values, 32);
29    a.normalize(log_base2k, &mut buf);
30
31    a.print_limbs(a.limbs(), n);
32    println!();
33
34    let mut vecznx: Vec<VecZnx> = Vec::new();
35    (0..rows).for_each(|_| {
36        vecznx.push(module.new_vec_znx(cols));
37    });
38
39    (0..rows).for_each(|i| {
40        vecznx[i].data[i * n + 1] = 1 as i64;
41    });
42
43    let mut vmp_pmat: VmpPMat = module.new_vmp_pmat(rows, cols);
44    module.vmp_prepare_dblptr(&mut vmp_pmat, &vecznx, &mut buf);
45
46    let mut c_dft: VecZnxDft = module.new_vec_znx_dft(cols);
47    module.vmp_apply_dft(&mut c_dft, &a, &vmp_pmat, &mut buf);
48
49    let mut c_big: VecZnxBig = c_dft.as_vec_znx_big();
50    module.vec_znx_idft_tmp_a(&mut c_big, &mut c_dft, cols);
51
52    let mut res: VecZnx = module.new_vec_znx(cols);
53    module.vec_znx_big_normalize(log_base2k, &mut res, &c_big, &mut buf);
54
55    let mut values_res: Vec<i64> = vec![i64::default(); n];
56    res.decode_vec_i64(log_base2k, log_k, &mut values_res);
57
58    res.print_limbs(res.limbs(), n);
59
60    module.free();
61    c_dft.free();
62    vmp_pmat.free();
63
64    //println!("{:?}", values_res)
65}