view liboctave/oct-spparms.h @ 8987:542015fada9e

Eliminate the workspace in sparse transpose. The output's cidx (column start offset array) can serve as the workspace, so the routines operate in the space of their output.
author Jason Riedy <jason@acm.org>
date Mon, 16 Mar 2009 17:03:07 -0400
parents d865363208d6
children 4c0cdbe0acca
line wrap: on
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/*

Copyright (C) 2004, 2005, 2006, 2007, 2008 David Bateman
Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004 Andy Adler

This file is part of Octave.

Octave 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 3 of the License, or (at your
option) any later version.

Octave 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 Octave; see the file COPYING.  If not, see
<http://www.gnu.org/licenses/>.

*/

#if !defined (octave_oct_spparms_h)
#define octave_oct_spparms_h 1

#include <cassert>
#include <cstddef>

#include <iosfwd>

#include "str-vec.h"
#include "dColVector.h"
#include "dNDArray.h"

#define OCTAVE_SPARSE_CONTROLS_SIZE 13

class
OCTAVE_API
octave_sparse_params
{
protected:

  octave_sparse_params (void)
    : params (OCTAVE_SPARSE_CONTROLS_SIZE),
      keys (OCTAVE_SPARSE_CONTROLS_SIZE) 
  {
    init_keys ();
    do_defaults ();
  }

public:

  octave_sparse_params (const octave_sparse_params& a)
    : params (a.params), keys (a.keys) { }

  octave_sparse_params& operator = (const octave_sparse_params& a)
  {
    if (&a != this)
      {
	params = a.params;
	keys = a.keys;
      }
    
    return *this;
  }

  ~octave_sparse_params (void) { }

  static bool instance_ok (void);

  static void defaults (void);

  static void tight (void);
  
  static string_vector get_keys (void);

  static ColumnVector get_vals (void);

  static bool set_vals (const NDArray& vals);

  static bool set_key (const std::string& key, const double& val);

  static double get_key (const std::string& key);

  static double get_bandden (void);

  static void print_info (std::ostream& os, const std::string& prefix);

private:

  ColumnVector params;

  string_vector keys;

  static octave_sparse_params *instance;

  void do_defaults (void);

  void do_tight (void);
  
  string_vector do_get_keys (void) const { return keys; }

  ColumnVector do_get_vals (void) const { return params; }

  bool do_set_vals (const NDArray& vals);

  bool do_set_key (const std::string& key, const double& val);

  double do_get_key (const std::string& key);

  double do_get_bandden (void);

  void do_print_info (std::ostream& os, const std::string& prefix) const;
  
  void init_keys (void);
};

#endif

/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; End: ***
*/