editor_policy.hpp

// Copyright 2021 Arnaud Becheler    <abechele@umich.edu>
 
/*********************************************************************** * This program is free software; you can
 *redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free
 *Software Foundation; either version 2 of the License, or    * (at your option) any later version. *
 *                                                                      *
 ***************************************************************************/
 
#ifndef __EDITOR_POLICY_H_INCLUDED__
#define __EDITOR_POLICY_H_INCLUDED__
 
#include "OccupancySpectrum.hpp"
 
#include <utility> // std::forward, std::move
 
namespace quetzal
{
namespace coalescence
{
namespace occupancy_spectrum
{
namespace editor_policy
{
struct identity
{
    static OccupancySpectrum edit(OccupancySpectrum &&M_j)
    {
        return std::move(M_j);
    }
}; // end struct identity
struct truncate_tail
{
    static OccupancySpectrum edit(OccupancySpectrum &&M_j)
    {
        auto first = --(M_j.end());
        while (first != M_j.begin() && *first == 0)
        {
            --first;
        }
        M_j.erase(++first, M_j.end());
        return std::move(M_j);
    }
}; // end struct truncate_tail
} // end namespace editor_policy
} // namespace occupancy_spectrum
} // end namespace coalescence
} // end namespace quetzal
 
#endif