/usr/include/dune/grid/uggrid/uggridentityseed.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_UGGRID_ENTITY_SEED_HH
#define DUNE_UGGRID_ENTITY_SEED_HH
/** \file
* \brief Implementation of EntitySeed for the UGGrid grid manager
*/
namespace Dune {
/** \brief Store a reference to an entity with a minimal memory footprint (one pointer)
*/
template<int codim, class GridImp>
class UGGridEntitySeed
{
// grid dimension
enum { dim = GridImp::dimension };
public:
//! codimension of underlying entity
enum { codimension = codim };
//! default construct an invalid entity seed
UGGridEntitySeed ()
: target_(nullptr)
{}
//! construct entity seed from entity
UGGridEntitySeed (const UGGridEntity<codim,dim,GridImp>& entity)
: target_(entity.getTarget())
{}
//! check whether the EntitySeed refers to a valid Entity
bool isValid() const
{
return target_ != nullptr;
}
/** \brief Access to the underlying UG data structure */
typename UG_NS<dim>::template Entity<codim>::T* target() const
{
return target_;
}
private:
/** \brief Plain old pointer to the corresponding UG data structure */
typename UG_NS<dim>::template Entity<codim>::T* target_;
};
} // end namespace Dune
#endif
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