ov-perm.h

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////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2008-2025 The Octave Project Developers
//
// See the file COPYRIGHT.md in the top-level directory of this
// distribution or <https://octave.org/copyright/>.
//
// 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.
//
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// 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
// <https://www.gnu.org/licenses/>.
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////////////////////////////////////////////////////////////////////////
 
#if ! defined (octave_ov_perm_h)
#define octave_ov_perm_h 1
 
#include "octave-config.h"
 
#include "mx-base.h"
#include "str-vec.h"
 
#include "ov-base.h"
#include "ov-typeinfo.h"
#include "ovl.h"
 
class OCTINTERP_API octave_perm_matrix : public octave_base_value
{
public:
  octave_perm_matrix () : m_matrix (), m_dense_cache () { }
 
  octave_perm_matrix (const PermMatrix& p) : m_matrix (p), m_dense_cache () { }
 
  octave_base_value * clone () const
  { return new octave_perm_matrix (*this); }
  octave_base_value * empty_clone () const
  { return new octave_perm_matrix (); }
 
  type_conv_info numeric_conversion_function () const;
 
  octave_base_value * try_narrowing_conversion ();
 
  std::size_t byte_size () const { return m_matrix.byte_size (); }
 
  octave_value squeeze () const { return m_matrix; }
 
  octave_value full_value () const { return to_dense (); }
 
  // We don't need to override all three forms of subsref.  The using
  // declaration will avoid warnings about partially-overloaded virtual
  // functions.
  using octave_base_value::subsref;
 
  octave_value subsref (const std::string& type,
                        const std::list<octave_value_list>& idx);
 
  octave_value_list subsref (const std::string& type,
                             const std::list<octave_value_list>& idx, int)
  { return subsref (type, idx); }
 
  octave_value do_index_op (const octave_value_list& idx,
                            bool resize_ok = false);
 
  dim_vector dims () const { return m_matrix.dims (); }
 
  octave_idx_type nnz () const { return m_matrix.rows (); }
 
  octave_value reshape (const dim_vector& new_dims) const
  { return to_dense ().reshape (new_dims); }
 
  octave_value permute (const Array<int>& vec, bool inv = false) const
  { return to_dense ().permute (vec, inv); }
 
  octave_value resize (const dim_vector& dv, bool fill = false) const
  { return to_dense ().resize (dv, fill); }
 
  octave_value all (int dim = 0) const { return to_dense ().all (dim); }
  octave_value any (int dim = 0) const { return to_dense ().any (dim); }
 
  MatrixType matrix_type () const { return MatrixType::Permuted_Diagonal; }
  MatrixType matrix_type (const MatrixType&) const
  { return matrix_type (); }
 
  // We don't need to override both forms of the diag method.  The using
  // declaration will avoid warnings about partially-overloaded virtual
  // functions.
  using octave_base_value::diag;
 
  octave_value diag (octave_idx_type k = 0) const
  { return to_dense () .diag (k); }
 
  octave_value sort (octave_idx_type dim = 0, sortmode mode = ASCENDING) const
  { return to_dense ().sort (dim, mode); }
  octave_value sort (Array<octave_idx_type>& sidx, octave_idx_type dim = 0,
                     sortmode mode = ASCENDING) const
  { return to_dense ().sort (sidx, dim, mode); }
 
  sortmode issorted (sortmode mode = UNSORTED) const
  { return to_dense ().issorted (mode); }
 
  Array<octave_idx_type> sort_rows_idx (sortmode mode = ASCENDING) const
  { return to_dense ().sort_rows_idx (mode); }
 
  sortmode is_sorted_rows (sortmode mode = UNSORTED) const
  { return to_dense ().is_sorted_rows (mode); }
 
  builtin_type_t builtin_type () const { return btyp_double; }
 
  bool is_perm_matrix () const { return true; }
 
  bool is_matrix_type () const { return true; }
 
  bool isnumeric () const { return true; }
 
  bool is_defined () const { return true; }
 
  bool is_constant () const { return true; }
 
  bool is_real_matrix () const { return true; }
 
  bool isreal () const { return true; }
 
  bool is_double_type () const { return true; }
 
  bool isfloat () const { return true; }
 
  bool is_true () const;
 
  double double_value (bool = false) const;
 
  float float_value (bool = false) const;
 
  double scalar_value (bool frc_str_conv = false) const
  { return double_value (frc_str_conv); }
 
  octave::idx_vector index_vector (bool require_integers = false) const;
 
  PermMatrix perm_matrix_value () const
  { return m_matrix; }
 
  Matrix matrix_value (bool = false) const;
 
  FloatMatrix float_matrix_value (bool = false) const;
 
  Complex complex_value (bool = false) const;
 
  FloatComplex float_complex_value (bool = false) const;
 
  ComplexMatrix complex_matrix_value (bool = false) const;
 
  FloatComplexMatrix float_complex_matrix_value (bool = false) const;
 
  ComplexNDArray complex_array_value (bool = false) const;
 
  FloatComplexNDArray float_complex_array_value (bool = false) const;
 
  boolNDArray bool_array_value (bool warn = false) const;
 
  charNDArray char_array_value (bool = false) const;
 
  NDArray array_value (bool = false) const;
 
  FloatNDArray float_array_value (bool = false) const;
 
  SparseMatrix sparse_matrix_value (bool = false) const;
 
  SparseBoolMatrix sparse_bool_matrix_value (bool = false) const;
 
  SparseComplexMatrix sparse_complex_matrix_value (bool = false) const;
 
  int8NDArray
  int8_array_value () const { return to_dense ().int8_array_value (); }
 
  int16NDArray
  int16_array_value () const { return to_dense ().int16_array_value (); }
 
  int32NDArray
  int32_array_value () const { return to_dense ().int32_array_value (); }
 
  int64NDArray
  int64_array_value () const { return to_dense ().int64_array_value (); }
 
  uint8NDArray
  uint8_array_value () const { return to_dense ().uint8_array_value (); }
 
  uint16NDArray
  uint16_array_value () const { return to_dense ().uint16_array_value (); }
 
  uint32NDArray
  uint32_array_value () const { return to_dense ().uint32_array_value (); }
 
  uint64NDArray
  uint64_array_value () const { return to_dense ().uint64_array_value (); }
 
  octave_value convert_to_str_internal (bool pad, bool force, char type) const;
 
  octave_value as_double () const;
  octave_value as_single () const;
 
  octave_value as_int8 () const;
  octave_value as_int16 () const;
  octave_value as_int32 () const;
  octave_value as_int64 () const;
 
  octave_value as_uint8 () const;
  octave_value as_uint16 () const;
  octave_value as_uint32 () const;
  octave_value as_uint64 () const;
 
  void print_raw (std::ostream& os, bool pr_as_read_syntax = false) const;
 
  float_display_format get_edit_display_format () const;
 
  std::string edit_display (const float_display_format& fmt,
                            octave_idx_type i, octave_idx_type j) const;
 
  bool save_ascii (std::ostream& os);
 
  bool load_ascii (std::istream& is);
 
  bool save_binary (std::ostream& os, bool save_as_floats);
 
  bool load_binary (std::istream& is, bool swap,
                    octave::mach_info::float_format fmt);
 
  int write (octave::stream& os, int block_size,
             oct_data_conv::data_type output_type, int skip,
             octave::mach_info::float_format flt_fmt) const;
 
  mxArray * as_mxArray (bool interleaved) const;
 
  bool print_as_scalar () const;
 
  void print (std::ostream& os, bool pr_as_read_syntax = false);
 
  void print_info (std::ostream& os, const std::string& prefix) const;
 
  void short_disp (std::ostream& os) const;
 
  octave_value map (unary_mapper_t umap) const
  { return to_dense ().map (umap); }
 
  octave_value fast_elem_extract (octave_idx_type n) const;
 
protected:
 
  PermMatrix m_matrix;
 
  virtual octave_value to_dense () const;
 
  mutable octave_value m_dense_cache;
 
private:
 
  DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA_API (OCTINTERP_API)
};
 
#endif