m_reduce.h

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/* Copyright (C) 2014 Richard Larsson <ric.larsson@gmail.com>

   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, or (at your option) any
   later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
   USA. */

#ifndef m_reduce_h
#define m_reduce_h

#include "array.h"
#include "exceptions.h"
#include "matpackVII.h"
#include <cstring>




Index num_elem_from_dim_sizes(const ArrayOfIndex &dim_sizes)
{
    Index m = 1;
    for (ArrayOfIndex::const_iterator it = dim_sizes.begin();
         it != dim_sizes.end(); it++)
        m *= *it;

    return m;
}


// Need this for each matpack type: Vector
void select_dims_by_size(ArrayOfIndex &dim_sizes,
                         const Index min_num_elem,
                         const Vector &type)
{
    dim_sizes.resize(0);
    if (type.nelem() > min_num_elem) dim_sizes.push_back(type.nelem());
}


// Need this for each matpack type: Matrix
void select_dims_by_size(ArrayOfIndex &dim_sizes,
                         const Index min_num_elem,
                         const Matrix &type)
{
    dim_sizes.resize(0);
    if (type.nrows() > min_num_elem) dim_sizes.push_back(type.nrows());
    if (type.ncols() > min_num_elem) dim_sizes.push_back(type.ncols());
}


// Need this for each matpack type: Tensor3
void select_dims_by_size(ArrayOfIndex &dim_sizes,
                         const Index min_num_elem,
                         const Tensor3 &type)
{
    dim_sizes.resize(0);
    if (type.npages() > min_num_elem) dim_sizes.push_back(type.npages());
    if (type.nrows() > min_num_elem) dim_sizes.push_back(type.nrows());
    if (type.ncols() > min_num_elem) dim_sizes.push_back(type.ncols());
}


// Need this for each matpack type: Tensor4
void select_dims_by_size(ArrayOfIndex &dim_sizes,
                         const Index min_num_elem,
                         const Tensor4 &type)
{
    dim_sizes.resize(0);
    if (type.nbooks() > min_num_elem) dim_sizes.push_back(type.nbooks());
    if (type.npages() > min_num_elem) dim_sizes.push_back(type.npages());
    if (type.nrows() > min_num_elem) dim_sizes.push_back(type.nrows());
    if (type.ncols() > min_num_elem) dim_sizes.push_back(type.ncols());
}


// Need this for each matpack type: Tensor5
void select_dims_by_size(ArrayOfIndex &dim_sizes,
                         const Index min_num_elem,
                         const Tensor5 &type)
{
    dim_sizes.resize(0);
    if (type.nshelves() > min_num_elem) dim_sizes.push_back(type.nshelves());
    if (type.nbooks() > min_num_elem) dim_sizes.push_back(type.nbooks());
    if (type.npages() > min_num_elem) dim_sizes.push_back(type.npages());
    if (type.nrows() > min_num_elem) dim_sizes.push_back(type.nrows());
    if (type.ncols() > min_num_elem) dim_sizes.push_back(type.ncols());
}


// Need this for each matpack type: Tensor6
void select_dims_by_size(ArrayOfIndex &dim_sizes,
                         const Index min_num_elem,
                         const Tensor6 &type)
{
    dim_sizes.resize(0);
    if (type.nvitrines() > min_num_elem) dim_sizes.push_back(type.nvitrines());
    if (type.nshelves() > min_num_elem) dim_sizes.push_back(type.nshelves());
    if (type.nbooks() > min_num_elem) dim_sizes.push_back(type.nbooks());
    if (type.npages() > min_num_elem) dim_sizes.push_back(type.npages());
    if (type.nrows() > min_num_elem) dim_sizes.push_back(type.nrows());
    if (type.ncols() > min_num_elem) dim_sizes.push_back(type.ncols());
}


// Need this for each matpack type: Tensor7
void select_dims_by_size(ArrayOfIndex &dim_sizes,
                         const Index min_num_elem,
                         const Tensor7 &type)
{
    dim_sizes.resize(0);
    if (type.nlibraries() > min_num_elem) dim_sizes.push_back(type.nlibraries());
    if (type.nvitrines() > min_num_elem) dim_sizes.push_back(type.nvitrines());
    if (type.nshelves() > min_num_elem) dim_sizes.push_back(type.nshelves());
    if (type.nbooks() > min_num_elem) dim_sizes.push_back(type.nbooks());
    if (type.npages() > min_num_elem) dim_sizes.push_back(type.npages());
    if (type.nrows() > min_num_elem) dim_sizes.push_back(type.nrows());
    if (type.ncols() > min_num_elem) dim_sizes.push_back(type.ncols());
}




// To Numeric


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
      // WS Generic Output:
      Numeric&         o,
      // WS Input:
      // WS Generic Input:
      const Vector&    i,
      const Verbosity&)
{
  if( i.nelem() == 1 )
    o=i[0];
  else
    {
      ostringstream os;
      os << "The Vector is not also a Numeric";
      throw std::runtime_error( os.str() );
    }
}


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
      // WS Generic Output:
      Numeric&         o,
      // WS Input:
      // WS Generic Input:
      const Matrix&    i,
      const Verbosity&)
{
  if( i.ncols() == 1 && 
      i.nrows() == 1 )
    o=i(0,0);
  else
    {
      ostringstream os;
      os << "The Matrix is not also a Numeric";
      throw std::runtime_error( os.str() );
    }
}


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
      // WS Generic Output:
      Numeric&         o,
      // WS Input:
      // WS Generic Input:
      const Tensor3&   i,
      const Verbosity&)
{
  if( i.ncols() == 1 && 
      i.nrows() == 1 && 
      i.npages() == 1 )
    o=i(0,0,0);
  else
    {
      ostringstream os;
      os << "The Tensor3 is not also a Numeric";
      throw std::runtime_error( os.str() );
    }
}


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
      // WS Generic Output:
      Numeric&         o,
      // WS Input:
      // WS Generic Input:
      const Tensor4&   i,
      const Verbosity&)
{
  if( i.ncols() == 1 && 
      i.nrows() == 1 && 
      i.npages() == 1 && 
      i.nbooks() == 1 )
    o=i(0,0,0,0);
  else
    {
      ostringstream os;
      os << "The Tensor4 is not also a Numeric";
      throw std::runtime_error( os.str() );
    }
}


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
      // WS Generic Output:
      Numeric&         o,
      // WS Input:
      // WS Generic Input:
      const Tensor5&   i,
      const Verbosity&)
{
  if( i.ncols() == 1 && 
      i.nrows() == 1 && 
      i.npages() == 1 && 
      i.nbooks() == 1 && 
      i.nshelves() == 1 )
    o=i(0,0,0,0,0);
  else
    {
      ostringstream os;
      os << "The Tensor5 is not also a Numeric";
      throw std::runtime_error( os.str() );
    }
}


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
      // WS Generic Output:
      Numeric&         o,
      // WS Input:
      // WS Generic Input:
      const Tensor6&   i,
      const Verbosity&)
{
  if( i.ncols() == 1 && 
      i.nrows() == 1 && 
      i.npages() == 1 && 
      i.nbooks() == 1 && 
      i.nshelves() == 1 && 
      i.nvitrines() == 1 )
    o=i(0,0,0,0,0,0);
  else
    {
      ostringstream os;
      os << "The Tensor6 is not also a Numeric";
      throw std::runtime_error( os.str() );
    }
}


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
      // WS Generic Output:
      Numeric&         o,
      // WS Input:
      // WS Generic Input:
      const Tensor7&   i,
      const Verbosity&)
{
  if( i.ncols() == 1 && 
      i.nrows() == 1 && 
      i.npages() == 1 && 
      i.nbooks() == 1 && 
      i.nshelves() == 1 && 
      i.nvitrines() == 1 && 
      i.nlibraries() == 1 )
    o=i(0,0,0,0,0,0,0);
  else
    {
      ostringstream os;
      os << "The Tensor7 is not also a Numeric";
      throw std::runtime_error( os.str() );
    }
}


//To Vector


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
            // WS Generic Output:
            Vector&         o,
            // WS Input:
            // WS Generic Input:
            const Matrix&    i,
            const Verbosity&)
{
    ArrayOfIndex dim_sizes;
    Index test = 1;

    select_dims_by_size(dim_sizes, 1, i);
    Index num = dim_sizes.nelem();
    if( num == test)
    {
        o.resize(dim_sizes[0]);
        memcpy(o.get_c_array(),
               i.get_c_array(),
               sizeof(Numeric)* num_elem_from_dim_sizes(dim_sizes));
    }
    else
    {
        ostringstream os;
        os << "The Matrix of size (" << dim_sizes << ") \n"
           << "does not fit a Vector";
        throw std::runtime_error(os.str());
    }
}


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
            // WS Generic Output:
            Vector&         o,
            // WS Input:
            // WS Generic Input:
            const Tensor3&    i,
            const Verbosity&)
{
    ArrayOfIndex dim_sizes;
    Index test = 1;

    select_dims_by_size(dim_sizes, 1, i);
    Index num = dim_sizes.nelem();
    if( num == test)
    {
        o.resize(dim_sizes[0]);
        memcpy(o.get_c_array(),
               i.get_c_array(),
               sizeof(Numeric)* num_elem_from_dim_sizes(dim_sizes));
    }
    else
    {
        ostringstream os;
        os << "The Tensor3 of size (" << dim_sizes << ") \n"
           << "does not fit a Vector";
        throw std::runtime_error(os.str());
    }
}


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
            // WS Generic Output:
            Vector&         o,
            // WS Input:
            // WS Generic Input:
            const Tensor4&    i,
            const Verbosity&)
{
    ArrayOfIndex dim_sizes;
    Index test = 1;

    select_dims_by_size(dim_sizes, 1, i);
    Index num = dim_sizes.nelem();
    if( num == test)
    {
        o.resize(dim_sizes[0]);
        memcpy(o.get_c_array(),
               i.get_c_array(),
               sizeof(Numeric)* num_elem_from_dim_sizes(dim_sizes));
    }
    else
    {
        ostringstream os;
        os << "The Tensor4 of size (" << dim_sizes << ") \n"
           << "does not fit a Vector";
        throw std::runtime_error(os.str());
    }
}


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
            // WS Generic Output:
            Vector&         o,
            // WS Input:
            // WS Generic Input:
            const Tensor5&    i,
            const Verbosity&)
{
    ArrayOfIndex dim_sizes;
    Index test = 1;

    select_dims_by_size(dim_sizes, 1, i);
    Index num = dim_sizes.nelem();
    if( num == test)
    {
        o.resize(dim_sizes[0]);
        memcpy(o.get_c_array(),
               i.get_c_array(),
               sizeof(Numeric)* num_elem_from_dim_sizes(dim_sizes));
    }
    else
    {
        ostringstream os;
        os << "The Tensor5 of size (" << dim_sizes << ") \n"
           << "does not fit a Vector";
        throw std::runtime_error(os.str());
    }
}


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
            // WS Generic Output:
            Vector&         o,
            // WS Input:
            // WS Generic Input:
            const Tensor6&    i,
            const Verbosity&)
{
    ArrayOfIndex dim_sizes;
    Index test = 1;

    select_dims_by_size(dim_sizes, 1, i);
    Index num = dim_sizes.nelem();
    if( num == test)
    {
        o.resize(dim_sizes[0]);
        memcpy(o.get_c_array(),
               i.get_c_array(),
               sizeof(Numeric)* num_elem_from_dim_sizes(dim_sizes));
    }
    else
    {
        ostringstream os;
        os << "The Tensor6 of size (" << dim_sizes << ") \n"
           << "does not fit a Vector";
        throw std::runtime_error(os.str());
    }
}


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
            // WS Generic Output:
            Vector&         o,
            // WS Input:
            // WS Generic Input:
            const Tensor7&    i,
            const Verbosity&)
{
    ArrayOfIndex dim_sizes;
    Index test = 1;

    select_dims_by_size(dim_sizes, 1, i);
    Index num = dim_sizes.nelem();
    if( num == test)
    {
        o.resize(dim_sizes[0]);
        memcpy(o.get_c_array(),
               i.get_c_array(),
               sizeof(Numeric)* num_elem_from_dim_sizes(dim_sizes));
    }
    else
    {
        ostringstream os;
        os << "The Tensor7 of size (" << dim_sizes << ") \n"
           << "does not fit a Vector";
        throw std::runtime_error(os.str());
    }
}


// To Matrix


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
            // WS Generic Output:
            Matrix&         o,
            // WS Input:
            // WS Generic Input:
            const Tensor3&    i,
            const Verbosity&)
{
    ArrayOfIndex dim_sizes;
    Index test = 2;

    select_dims_by_size(dim_sizes, 1, i);
    Index num = dim_sizes.nelem();
    if( num == test)
    {
        o.resize(dim_sizes[0],
                 dim_sizes[1]);
        memcpy(o.get_c_array(),
               i.get_c_array(),
               sizeof(Numeric)* num_elem_from_dim_sizes(dim_sizes));
    }
    else
    {
        ostringstream os;
        os << "The Tensor3 of size (" << dim_sizes << ") \n"
           << "does not fit a Matrix";
        throw std::runtime_error(os.str());
    }
}


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
            // WS Generic Output:
            Matrix&         o,
            // WS Input:
            // WS Generic Input:
            const Tensor4&    i,
            const Verbosity&)
{
    ArrayOfIndex dim_sizes;
    Index test = 2;

    select_dims_by_size(dim_sizes, 1, i);
    Index num = dim_sizes.nelem();
    if( num == test)
    {
        o.resize(dim_sizes[0],
                 dim_sizes[1]);
        memcpy(o.get_c_array(),
               i.get_c_array(),
               sizeof(Numeric)* num_elem_from_dim_sizes(dim_sizes));
    }
    else
    {
        ostringstream os;
        os << "The Tensor4 of size (" << dim_sizes << ") \n"
           << "does not fit a Matrix";
        throw std::runtime_error(os.str());
    }
}


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
            // WS Generic Output:
            Matrix&         o,
            // WS Input:
            // WS Generic Input:
            const Tensor5&    i,
            const Verbosity&)
{
    ArrayOfIndex dim_sizes;
    Index test = 2;

    select_dims_by_size(dim_sizes, 1, i);
    Index num = dim_sizes.nelem();
    if( num == test)
    {
        o.resize(dim_sizes[0],
                 dim_sizes[1]);
        memcpy(o.get_c_array(),
               i.get_c_array(),
               sizeof(Numeric)* num_elem_from_dim_sizes(dim_sizes));
    }
    else
    {
        ostringstream os;
        os << "The Tensor5 of size (" << dim_sizes << ") \n"
           << "does not fit a Matrix";
        throw std::runtime_error(os.str());
    }
}


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
            // WS Generic Output:
            Matrix&         o,
            // WS Input:
            // WS Generic Input:
            const Tensor6&    i,
            const Verbosity&)
{
    ArrayOfIndex dim_sizes;
    Index test = 2;

    select_dims_by_size(dim_sizes, 1, i);
    Index num = dim_sizes.nelem();
    if( num == test)
    {
        o.resize(dim_sizes[0],
                 dim_sizes[1]);
        memcpy(o.get_c_array(),
               i.get_c_array(),
               sizeof(Numeric)* num_elem_from_dim_sizes(dim_sizes));
    }
    else
    {
        ostringstream os;
        os << "The Tensor6 of size (" << dim_sizes << ") \n"
           << "does not fit a Matrix";
        throw std::runtime_error(os.str());
    }
}


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
            // WS Generic Output:
            Matrix&         o,
            // WS Input:
            // WS Generic Input:
            const Tensor7&    i,
            const Verbosity&)
{
    ArrayOfIndex dim_sizes;
    Index test = 2;

    select_dims_by_size(dim_sizes, 1, i);
    Index num = dim_sizes.nelem();
    if( num == test)
    {
        o.resize(dim_sizes[0],
                 dim_sizes[1]);
        memcpy(o.get_c_array(),
               i.get_c_array(),
               sizeof(Numeric)* num_elem_from_dim_sizes(dim_sizes));
    }
    else
    {
        ostringstream os;
        os << "The Tensor7 of size (" << dim_sizes << ") \n"
           << "does not fit a Matrix";
        throw std::runtime_error(os.str());
    }
}


// To Tensor 3


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
            // WS Generic Output:
            Tensor3&         o,
            // WS Input:
            // WS Generic Input:
            const Tensor4&    i,
            const Verbosity&)
{
    ArrayOfIndex dim_sizes;
    Index test = 3;

    select_dims_by_size(dim_sizes, 1, i);
    Index num = dim_sizes.nelem();
    if( num == test)
    {
        o.resize(dim_sizes[0],
                 dim_sizes[1],
                 dim_sizes[2]);
        memcpy(o.get_c_array(),
               i.get_c_array(),
               sizeof(Numeric)* num_elem_from_dim_sizes(dim_sizes));
    }
    else
    {
        ostringstream os;
        os << "The Tensor4 of size (" << dim_sizes << ") \n"
           << "does not fit a Tensor3";
        throw std::runtime_error(os.str());
    }
}


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
            // WS Generic Output:
            Tensor3&         o,
            // WS Input:
            // WS Generic Input:
            const Tensor5&    i,
            const Verbosity&)
{
    ArrayOfIndex dim_sizes;
    Index test = 3;

    select_dims_by_size(dim_sizes, 1, i);
    Index num = dim_sizes.nelem();
    if( num == test)
    {
        o.resize(dim_sizes[0],
                 dim_sizes[1],
                 dim_sizes[2]);
        memcpy(o.get_c_array(),
               i.get_c_array(),
               sizeof(Numeric)* num_elem_from_dim_sizes(dim_sizes));
    }
    else
    {
        ostringstream os;
        os << "The Tensor5 of size (" << dim_sizes << ") \n"
           << "does not fit a Tensor3";
        throw std::runtime_error(os.str());
    }
}


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
            // WS Generic Output:
            Tensor3&         o,
            // WS Input:
            // WS Generic Input:
            const Tensor6&    i,
            const Verbosity&)
{
    ArrayOfIndex dim_sizes;
    Index test = 3;

    select_dims_by_size(dim_sizes, 1, i);
    Index num = dim_sizes.nelem();
    if( num == test)
    {
        o.resize(dim_sizes[0],
                 dim_sizes[1],
                 dim_sizes[2]);
        memcpy(o.get_c_array(),
               i.get_c_array(),
               sizeof(Numeric)* num_elem_from_dim_sizes(dim_sizes));
    }
    else
    {
        ostringstream os;
        os << "The Tensor6 of size (" << dim_sizes << ") \n"
           << "does not fit a Tensor3";
        throw std::runtime_error(os.str());
    }
}


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
            // WS Generic Output:
            Tensor3&         o,
            // WS Input:
            // WS Generic Input:
            const Tensor7&    i,
            const Verbosity&)
{
    ArrayOfIndex dim_sizes;
    Index test = 3;

    select_dims_by_size(dim_sizes, 1, i);
    Index num = dim_sizes.nelem();
    if( num == test)
    {
        o.resize(dim_sizes[0],
                 dim_sizes[1],
                 dim_sizes[2]);
        memcpy(o.get_c_array(),
               i.get_c_array(),
               sizeof(Numeric)* num_elem_from_dim_sizes(dim_sizes));
    }
    else
    {
        ostringstream os;
        os << "The Tensor7 of size (" << dim_sizes << ") \n"
           << "does not fit a Tensor3";
        throw std::runtime_error(os.str());
    }
}


// To Tensor4


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
            // WS Generic Output:
            Tensor4&         o,
            // WS Input:
            // WS Generic Input:
            const Tensor5&    i,
            const Verbosity&)
{
    ArrayOfIndex dim_sizes;
    Index test = 4;

    select_dims_by_size(dim_sizes, 1, i);
    Index num = dim_sizes.nelem();
    if( num == test)
    {
        o.resize(dim_sizes[0],
                 dim_sizes[1],
                 dim_sizes[2],
                 dim_sizes[3]);
        memcpy(o.get_c_array(),
               i.get_c_array(),
               sizeof(Numeric)* num_elem_from_dim_sizes(dim_sizes));
    }
    else
    {
        ostringstream os;
        os << "The Tensor5 of size (" << dim_sizes << ") \n"
           << "does not fit a Tensor4";
        throw std::runtime_error(os.str());
    }
}


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
            // WS Generic Output:
            Tensor4&         o,
            // WS Input:
            // WS Generic Input:
            const Tensor6&    i,
            const Verbosity&)
{
    ArrayOfIndex dim_sizes;
    Index test = 4;

    select_dims_by_size(dim_sizes, 1, i);
    Index num = dim_sizes.nelem();
    if( num == test)
    {
        o.resize(dim_sizes[0],
                 dim_sizes[1],
                 dim_sizes[2],
                 dim_sizes[3]);
        memcpy(o.get_c_array(),
               i.get_c_array(),
               sizeof(Numeric)* num_elem_from_dim_sizes(dim_sizes));
    }
    else
    {
        ostringstream os;
        os << "The Tensor6 of size (" << dim_sizes << ") \n"
           << "does not fit a Tensor4";
        throw std::runtime_error(os.str());
    }
}


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
            // WS Generic Output:
            Tensor4&         o,
            // WS Input:
            // WS Generic Input:
            const Tensor7&    i,
            const Verbosity&)
{
    ArrayOfIndex dim_sizes;
    Index test = 4;

    select_dims_by_size(dim_sizes, 1, i);
    Index num = dim_sizes.nelem();
    if( num == test)
    {
        o.resize(dim_sizes[0],
                 dim_sizes[1],
                 dim_sizes[2],
                 dim_sizes[3]);
        memcpy(o.get_c_array(),
               i.get_c_array(),
               sizeof(Numeric)* num_elem_from_dim_sizes(dim_sizes));
    }
    else
    {
        ostringstream os;
        os << "The Tensor7 of size (" << dim_sizes << ") \n"
           << "does not fit a Tensor4";
        throw std::runtime_error(os.str());
    }
}


// To Tensor5


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
            // WS Generic Output:
            Tensor5&         o,
            // WS Input:
            // WS Generic Input:
            const Tensor6&    i,
            const Verbosity&)
{
    ArrayOfIndex dim_sizes;
    Index test = 5;

    select_dims_by_size(dim_sizes, 1, i);
    Index num = dim_sizes.nelem();
    if( num == test)
    {
        o.resize(dim_sizes[0],
                 dim_sizes[1],
                 dim_sizes[2],
                 dim_sizes[3],
                 dim_sizes[4]);
        memcpy(o.get_c_array(),
               i.get_c_array(),
               sizeof(Numeric)* num_elem_from_dim_sizes(dim_sizes));
    }
    else
    {
        ostringstream os;
        os << "The Tensor6 of size (" << dim_sizes << ") \n"
           << "does not fit a Tensor5";
        throw std::runtime_error(os.str());
    }
}


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
            // WS Generic Output:
            Tensor5&         o,
            // WS Input:
            // WS Generic Input:
            const Tensor7&    i,
            const Verbosity&)
{
    ArrayOfIndex dim_sizes;
    Index test = 5;

    select_dims_by_size(dim_sizes, 1, i);
    Index num = dim_sizes.nelem();
    if( num == test)
    {
        o.resize(dim_sizes[0],
                 dim_sizes[1],
                 dim_sizes[2],
                 dim_sizes[3],
                 dim_sizes[4]);
        memcpy(o.get_c_array(),
               i.get_c_array(),
               sizeof(Numeric)* num_elem_from_dim_sizes(dim_sizes));
    }
    else
    {
        ostringstream os;
        os << "The Tensor7 of size (" << dim_sizes << ") \n"
           << "does not fit a Tensor5";
        throw std::runtime_error(os.str());
    }
}


// To Tensor6


/* Workspace method: Doxygen documentation will be auto-generated */
void Reduce(
            // WS Generic Output:
            Tensor6&         o,
            // WS Input:
            // WS Generic Input:
            const Tensor7&    i,
            const Verbosity&)
{
    ArrayOfIndex dim_sizes;
    Index test = 6;

    select_dims_by_size(dim_sizes, 1, i);
    Index num = dim_sizes.nelem();
    if( num == test)
    {
        o.resize(dim_sizes[0],
                 dim_sizes[1],
                 dim_sizes[2],
                 dim_sizes[3],
                 dim_sizes[4],
                 dim_sizes[5]);
        memcpy(o.get_c_array(),
               i.get_c_array(),
               sizeof(Numeric)* num_elem_from_dim_sizes(dim_sizes));
    }
    else
    {
        ostringstream os;
        os << "The Tensor7 of size (" << dim_sizes << ") \n"
           << "does not fit a Tensor6";
        throw std::runtime_error(os.str());
    }
}


#endif /* m_reduce_h */