/usr/include/dune/grid/albertagrid/dofadmin.hh is in libdune-grid-dev 2.5.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// vi: set et ts=4 sw=2 sts=2:
#ifndef DUNE_ALBERTA_DOFADMIN_HH
#define DUNE_ALBERTA_DOFADMIN_HH
#include <dune/grid/albertagrid/misc.hh>
#include <dune/grid/albertagrid/elementinfo.hh>
#if HAVE_ALBERTA
namespace Dune
{
namespace Alberta
{
// External Forward Declarations
// -----------------------------
template< int dim >
class MeshPointer;
// DofAccess
// ---------
template< int dim, int codim >
class DofAccess
{
static const int codimtype = CodimType< dim, codim >::value;
public:
static const int numSubEntities = NumSubEntities< dim, codim >::value;
static const int dimension = dim;
static const int codimension = codim;
typedef Alberta::ElementInfo< dimension > ElementInfo;
DofAccess ()
: node_( -1 )
{}
explicit DofAccess ( const DofSpace *dofSpace )
{
assert( dofSpace );
node_ = dofSpace->admin->mesh->node[ codimtype ];
index_ = dofSpace->admin->n0_dof[ codimtype ];
}
int operator() ( const Element *element, int subEntity, int i ) const
{
assert( element );
assert( node_ != -1 );
assert( subEntity < numSubEntities );
return element->dof[ node_ + subEntity ][ index_ + i ];
}
int operator() ( const Element *element, int subEntity ) const
{
return (*this)( element, subEntity, 0 );
}
int operator() ( const ElementInfo &elementInfo, int subEntity, int i ) const
{
return (*this)( elementInfo.el(), subEntity, i );
}
int operator() ( const ElementInfo &elementInfo, int subEntity ) const
{
return (*this)( elementInfo.el(), subEntity );
}
private:
int node_;
int index_;
};
// HierarchyDofNumbering
// ---------------------
template< int dim >
class HierarchyDofNumbering
{
typedef HierarchyDofNumbering< dim > This;
public:
static const int dimension = dim;
typedef Alberta::MeshPointer< dimension > MeshPointer;
typedef Alberta::ElementInfo< dimension > ElementInfo;
private:
static const int nNodeTypes = N_NODE_TYPES;
template< int codim >
struct CreateDofSpace;
template< int codim >
struct CacheDofSpace;
typedef std::pair< int, int > Cache;
public:
HierarchyDofNumbering ()
{}
private:
HierarchyDofNumbering ( const This & );
This &operator= ( const This & );
public:
~HierarchyDofNumbering ()
{
release();
}
int operator() ( const Element *element, int codim, unsigned int subEntity ) const
{
assert( !(*this) == false );
assert( (codim >= 0) && (codim <= dimension) );
const Cache &cache = cache_[ codim ];
return element->dof[ cache.first + subEntity ][ cache.second ];
}
int operator() ( const ElementInfo &element, int codim, unsigned int subEntity ) const
{
return (*this)( element.el(), codim, subEntity );
}
operator bool () const
{
return (bool)mesh_;
}
const DofSpace *dofSpace ( int codim ) const
{
assert( *this );
assert( (codim >= 0) && (codim <= dimension) );
return dofSpace_[ codim ];
}
const DofSpace *emptyDofSpace () const
{
assert( *this );
return emptySpace_;
}
const MeshPointer &mesh () const
{
return mesh_;
}
int size ( int codim ) const
{
return dofSpace( codim )->admin->size;
}
void create ( const MeshPointer &mesh );
void release ()
{
if( *this )
{
for( int codim = 0; codim <= dimension; ++codim )
freeDofSpace( dofSpace_[ codim ] );
freeDofSpace( emptySpace_ );
mesh_ = MeshPointer();
}
}
private:
static const DofSpace *createEmptyDofSpace ( const MeshPointer &mesh );
static const DofSpace *createDofSpace ( const MeshPointer &mesh,
const std::string &name,
const int (&ndof)[ nNodeTypes ],
const bool periodic = false );
static void freeDofSpace ( const DofSpace *dofSpace );
MeshPointer mesh_;
const DofSpace *emptySpace_;
const DofSpace *dofSpace_[ dimension+1 ];
Cache cache_[ dimension+1 ];
};
template< int dim >
inline void
HierarchyDofNumbering< dim >::create ( const MeshPointer &mesh )
{
release();
if( !mesh )
return;
mesh_ = mesh;
ForLoop< CreateDofSpace, 0, dimension >::apply( mesh_, dofSpace_ );
ForLoop< CacheDofSpace, 0, dimension >::apply( dofSpace_, cache_ );
emptySpace_ = createEmptyDofSpace( mesh_ );
for( int i = 0; i < nNodeTypes; ++i )
assert( emptySpace_->admin->n_dof[ i ] == 0 );
}
template< int dim >
inline const DofSpace *
HierarchyDofNumbering< dim >::createEmptyDofSpace ( const MeshPointer &mesh )
{
int ndof[ nNodeTypes ];
for( int i = 0; i < nNodeTypes; ++i )
ndof[ i ] = 0;
std::string name = "Empty";
return createDofSpace( mesh, name, ndof );
}
template< int dim >
inline const DofSpace *
HierarchyDofNumbering< dim >::createDofSpace ( const MeshPointer &mesh,
const std::string &name,
const int (&ndof)[ nNodeTypes ],
const bool periodic )
{
const ALBERTA FLAGS flags
= ADM_PRESERVE_COARSE_DOFS | (periodic ? ADM_PERIODIC : 0);
return ALBERTA get_dof_space ( mesh, name.c_str(), ndof, flags );
}
template< int dim >
inline void
HierarchyDofNumbering< dim >::freeDofSpace ( const DofSpace *dofSpace )
{
ALBERTA free_fe_space( dofSpace );
}
// HierarchyDofNumbering::CreateDofSpace
// -------------------------------------
template< int dim >
template< int codim >
struct HierarchyDofNumbering< dim >::CreateDofSpace
{
static void apply ( const MeshPointer &mesh, const DofSpace *(&dofSpace)[ dim+1 ] )
{
int ndof[ nNodeTypes ];
for( int i = 0; i < nNodeTypes; ++i )
ndof[ i ] = 0;
ndof[ CodimType< dim, codim >::value ] = 1;
std::string name = "Codimension ";
name += (char)(codim + '0');
dofSpace[ codim ] = createDofSpace( mesh, name, ndof );
assert( dofSpace[ codim ] );
}
};
// HierarchyDofNumbering::CacheDofSpace
// ------------------------------------
template< int dim >
template< int codim >
struct HierarchyDofNumbering< dim >::CacheDofSpace
{
static void apply ( const DofSpace *(&dofSpace)[ dim+1 ], Cache (&cache)[ dim+1 ] )
{
assert( dofSpace[ codim ] );
const int codimtype = CodimType< dim, codim >::value;
cache[ codim ].first = dofSpace[ codim ]->mesh->node[ codimtype ];
cache[ codim ].second = dofSpace[ codim ]->admin->n0_dof[ codimtype ];
}
};
} // namespace Alberta
} // namespace Dune
#endif // #if HAVE_ALBERTA
#endif // #ifndef DUNE_ALBERTA_DOFADMIN_HH
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