LLL.h

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/* This file is part of gbLAB.
 *
 * gbLAB is distributed without any warranty under the MIT License.
 */
 
 
#ifndef gbLAB_LLL_h_
#define gbLAB_LLL_h_
 
#include <cmath>
#include <algorithm> // std::max
#include <utility>   // std::swap
#include "Eigen/Dense"
#include <iostream>
// http://www.arageli.org/download
// https://www.mathworks.com/matlabcentral/fileexchange/49457-lattice-reduction-mimo?focused=3859922&tab=function
 
namespace oILAB {
class LLL {
 
  /**********************************************************************/
  void lll_gram_schmidt_int(const int &k);
 
  /**********************************************************************/
  void lll_size_reduction_int(const int &k, const int &l);
 
  /**********************************************************************/
  void lll_interchange_int(const int &k, const int &k_max);
 
  Eigen::MatrixXi B;
  Eigen::VectorXi d;
  Eigen::MatrixXi H;
  Eigen::MatrixXi Lambda;
 
public:
  template <int m, int n> LLL(const Eigen::Matrix<int, m, n> &B_in);
    };
 
    } // namespace oILAB
#endif