Matrice_Nulle.cpp

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#include <Matrice_Nulle.h>
#include <TRUSTTab.h>
#include <TRUSTArray.h>
 
Implemente_instanciable_sans_constructeur( Matrice_Nulle, "Matrice_Nulle", Matrice_Base ) ;
 
Sortie& Matrice_Nulle::printOn( Sortie& os ) const
{
  os << nb_lines_   << finl;
  os << nb_columns_ << finl;
  return os;
}
 
Entree& Matrice_Nulle::readOn( Entree& is )
{
  is >> nb_lines_;
  is >> nb_columns_;
  return is;
}
 
int Matrice_Nulle::ordre() const
{
  assert( nb_lines_   > 0 );
  assert( nb_columns_ > 0 );
 
  if ( nb_lines_ == nb_columns_ )
    {
      return nb_lines_;
    }
  return -1;
}
 
int Matrice_Nulle::nb_lignes() const
{
  assert( nb_lines_   > 0 );
  assert( nb_columns_ > 0 );
  return nb_lines_;
}
 
int Matrice_Nulle::nb_colonnes() const
{
  assert( nb_lines_   > 0 );
  assert( nb_columns_ > 0 );
  return nb_columns_;
}
 
DoubleVect& Matrice_Nulle::ajouter_multvect_(const DoubleVect& x,
                                             DoubleVect&       r) const
{
  assert( nb_lines_   > 0 );
  assert( nb_columns_ > 0 );
  return r;
}
 
DoubleVect& Matrice_Nulle::ajouter_multvectT_(const DoubleVect& x,
                                              DoubleVect&       r) const
{
  assert( nb_lines_   > 0 );
  assert( nb_columns_ > 0 );
  return r;
}
 
DoubleTab& Matrice_Nulle::ajouter_multTab_(const DoubleTab& x,
                                           DoubleTab&       r) const
{
  assert( nb_lines_   > 0 );
  assert( nb_columns_ > 0 );
  return r;
}
 
void Matrice_Nulle::scale( const double x )
{
  // nothing to do
}
 
void Matrice_Nulle::clean()
{
  // nothing to do
}
 
void Matrice_Nulle::get_stencil( Stencil& stencil ) const
{
  stencil.resize( 0, 2 );
}
 
void Matrice_Nulle::get_symmetric_stencil( Stencil& stencil ) const
{
  if ( nb_lines_ != nb_columns_ )
    {
      Cerr << "Error in 'Matrice_Nulle::get_symmetric_stencil( )':" << finl;
      Cerr << "  Matrix is not square." << finl;
      Cerr << "  nb_lines   = " << nb_lines_ << finl;
      Cerr << "  nb_columns = " << nb_columns_ << finl;
      Cerr << "  Exiting..." << finl;
      Process::exit( );
    }
  get_stencil( stencil );
}
 
void Matrice_Nulle::get_stencil_and_coefficients( Stencil&      stencil,
                                                  StencilCoeffs& coefficients ) const
{
  stencil.resize( 0, 2 );
  coefficients.resize( 0 );
}
 
void Matrice_Nulle::get_symmetric_stencil_and_coefficients( Stencil&      stencil,
                                                            StencilCoeffs& coefficients ) const
{
  if ( nb_lines_ != nb_columns_ )
    {
      Cerr << "Error in 'Matrice_Nulle::get_symmetric_stencil_and_coefficients( )':" << finl;
      Cerr << "  Matrix is not square." << finl;
      Cerr << "  nb_lines   = " << nb_lines_ << finl;
      Cerr << "  nb_columns = " << nb_columns_ << finl;
      Cerr << "  Exiting..." << finl;
      Process::exit( );
    }
  get_stencil_and_coefficients( stencil,
                                coefficients );
}
 
Matrice_Nulle::Matrice_Nulle() : Matrice_Base( )
{
  nb_lines_   = -1;
  nb_columns_ = -2;
}
 
Matrice_Nulle::Matrice_Nulle( int order ) : Matrice_Base( )
{
  assert( order > 0 );
  nb_lines_   = order;
  nb_columns_ = order;
}
 
Matrice_Nulle::Matrice_Nulle( int nb_lines, int nb_columns ) : Matrice_Base( )
{
  assert( nb_lines   > 0 );
  assert( nb_columns > 0 );
  nb_lines_ = nb_lines;
  nb_columns_ = nb_columns;
}
 
void Matrice_Nulle::dimensionner( int order )
{
  assert( order > 0 );
  nb_lines_   = order;
  nb_columns_ = order;
}
 
void Matrice_Nulle::dimensionner( int nb_lines, int nb_columns )
{
  assert( nb_lines   > 0 );
  assert( nb_columns > 0 );
  nb_lines_ = nb_lines;
  nb_columns_ = nb_columns;
}
 
double Matrice_Nulle::coeff( int i, int j ) const
{
  assert( nb_lines_   > 0 );
  assert( nb_columns_ > 0 );
  return 0.0;
}