/usr/include/dune/grid/alugrid/2d/entityseed.hh is in libdune-grid-dev 2.3.1-1.
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 ALU2DGRID_ENTITYKEY_HH
#define ALU2DGRID_ENTITYKEY_HH
namespace Dune
{
template<int cd, class GridImp>
class ALU2dGridEntitySeed ;
//**********************************************************************
//
// --ALU2dGridEntitySeed
// --EntitySeed
//**********************************************************************
template< int codim, class GridImp >
class ALU2dGridEntitySeedBase
{
protected:
typedef ALU2dGridEntitySeedBase< codim, GridImp > ThisType;
enum { dim = GridImp::dimension };
enum { dimworld = GridImp::dimensionworld };
friend class ALU2dGridEntity<codim,dim,GridImp>;
friend class ALU2dGridEntity< 0,dim,GridImp>;
friend class ALU2dGrid <GridImp :: dimension, GridImp::dimensionworld, GridImp::elementType >;
typedef ALU2dImplTraits< GridImp::dimensionworld, GridImp::elementType > ImplTraits;
typedef typename ImplTraits::template Codim<codim>::InterfaceType ImplementationType;
typedef ImplementationType HElementType;
typedef ImplementationType KeyType;
public:
static const int defaultValue = -1 ;
enum { codimension = codim };
//! type of Entity
typedef typename GridImp::template Codim<codimension>::Entity Entity;
//! underlying EntityImplementation
typedef MakeableInterfaceObject<Entity> EntityObject;
typedef typename EntityObject :: ImplementationType EntityImp;
//! typedef of my type
typedef ThisType ALU2dGridEntitySeedType;
//! make type of entity pointer implementation available in derived classes
typedef ALU2dGridEntitySeed<codimension,GridImp> EntitySeedImp;
//! Destructor
~ALU2dGridEntitySeedBase()
{
#ifndef NDEBUG
// clear pointer
clear();
#endif
}
//! Constructor for EntitySeed that points to an element
ALU2dGridEntitySeedBase();
//! Constructor for EntitySeed that points to an element
ALU2dGridEntitySeedBase(const HElementType& item);
/////////////////////////////////////////////////////////////
//
// interface methods
//
/////////////////////////////////////////////////////////////
//! copy constructor
ALU2dGridEntitySeedBase(const ALU2dGridEntitySeedType & org);
//! equality operator
bool operator == (const ALU2dGridEntitySeedType& i) const
{
return equals( i );
}
//! inequality operator
bool operator != (const ALU2dGridEntitySeedType& i) const
{
return ! equals( i );
}
//! assignment operator
ThisType & operator = (const ThisType & org);
//! check for valid seed
bool isValid () const
{
return item_ != 0;
}
//////////////////////////////////////////////////////
//
// non-interface methods
//
//////////////////////////////////////////////////////
//! equality
bool equals (const ALU2dGridEntitySeedType& i) const;
//! invalidate seed
void clear()
{
item_ = 0;
}
//! get item from key
HElementType* item() const { return item_; }
KeyType* toKey(const HElementType* item)
{
return static_cast< KeyType* > (const_cast< ImplementationType* > (static_cast<const ImplementationType* > (item)));
}
void set(const HElementType& item, const int level = -1 , const int face = -1 )
{
item_ = toKey( &item );
}
int level () const { return ( item_ ) ? item_->level() : defaultValue; }
int face () const { return defaultValue; }
protected:
// pointer to item
mutable KeyType* item_;
};
template<int cd, class GridImp>
class ALU2dGridEntitySeed :
public ALU2dGridEntitySeedBase<cd,GridImp>
{
typedef ALU2dGridEntitySeedBase<cd,GridImp> BaseType;
typedef ALU2dGridEntitySeed <cd,GridImp> ThisType;
enum { dim = GridImp::dimension };
enum { dimworld = GridImp::dimensionworld };
friend class ALU2dGridEntity<cd,dim,GridImp>;
friend class ALU2dGridEntity< 0,dim,GridImp>;
friend class ALU2dGrid <GridImp :: dimension, GridImp::dimensionworld, GridImp::elementType >;
typedef ALU2dImplTraits< GridImp::dimensionworld, GridImp::elementType > ImplTraits;
typedef typename ImplTraits::template Codim<cd>::InterfaceType ImplementationType;
typedef ImplementationType HElementType;
typedef ALU2dGridEntity<cd,dim,GridImp> ALU2dGridEntityType;
public:
using BaseType :: defaultValue ;
//! type of Entity
typedef typename GridImp::template Codim<cd>::Entity Entity;
//! typedef of my type
typedef ALU2dGridEntitySeed<cd,GridImp> ALU2dGridEntitySeedType;
//! Constructor for EntitySeed that points to an element
ALU2dGridEntitySeed(const ImplementationType & item)
{
// this constructor should only be called by codim=0 entity keys
assert( false );
abort();
}
//! Constructor for EntitySeed that points to an element
ALU2dGridEntitySeed(const HElementType & item,
const int level,
const int duneFace = defaultValue
);
//! Constructor for EntitySeed that points to an element
ALU2dGridEntitySeed()
: BaseType(), level_(defaultValue), face_(defaultValue) {}
//! Constructor for EntitySeed that points to given entity
ALU2dGridEntitySeed(const ALU2dGridEntityType& entity)
: ALU2dGridEntitySeedBase<cd,GridImp> (entity.getItem()),
level_(entity.level()), face_(defaultValue)
{}
//! copy constructor
ALU2dGridEntitySeed(const ALU2dGridEntitySeedType & org);
//! assignment operator
ThisType & operator = (const ThisType & org);
//! clear the key data structure
void clear();
//! set element and level
void set(const HElementType & item, const int level, const int duneFace )
{
BaseType :: set( item );
level_ = level ;
face_ = duneFace ;
}
//! return level
int level () const { return level_ ; }
//! return face
int face () const { return face_ ; }
using BaseType :: set ;
bool operator == (const ALU2dGridEntitySeedType& i) const
{
return equals( i );
}
bool operator != (const ALU2dGridEntitySeedType& i) const
{
return ! equals( i );
}
//! equality, calls BaseType equals
bool equals (const ALU2dGridEntitySeedType& key) const
{
// only compare the item pointer, this is the real key
return BaseType :: equals( key ) && (level() == key.level());
}
protected:
// level of entity
int level_;
// face number, for codim 1 only
int face_;
};
//! ALUGridEntitySeed points to an entity
//! this class is the specialisation for codim 0,
//! it has exactly the same functionality as the ALU2dGridEntitySeedBase
template<class GridImp>
class ALU2dGridEntitySeed<0,GridImp> :
public ALU2dGridEntitySeedBase<0,GridImp>
{
protected:
typedef ALU2dGridEntitySeedBase<0,GridImp> BaseType;
enum { cd = 0 };
typedef ALU2dGridEntitySeed <cd,GridImp> ThisType;
enum { dim = GridImp::dimension };
enum { dimworld = GridImp::dimensionworld };
friend class ALU2dGridEntity<cd,dim,GridImp>;
friend class ALU2dGridEntity< 0,dim,GridImp>;
friend class ALU2dGrid <GridImp :: dimension, GridImp::dimensionworld, GridImp::elementType >;
typedef ALU2dImplTraits< GridImp::dimensionworld, GridImp::elementType > ImplTraits;
typedef typename ImplTraits::template Codim<cd>::InterfaceType ImplementationType;
typedef ImplementationType HElementType;
typedef ALU2dGridEntity< 0,dim,GridImp> ALU2dGridEntityType ;
public:
using BaseType :: defaultValue ;
//! type of Entity
typedef typename GridImp::template Codim<cd>::Entity Entity;
//! typedef of my type
typedef ThisType ALU2dGridEntitySeedType;
//! Constructor for EntitySeed that points to an element
ALU2dGridEntitySeed() : BaseType() {}
//! Constructor for EntitySeed that points to an interior element
ALU2dGridEntitySeed(const HElementType& item)
: ALU2dGridEntitySeedBase<cd,GridImp> (item) {}
//! Constructor for EntitySeed that points to an interior element
ALU2dGridEntitySeed(const HElementType& item, int , int )
: ALU2dGridEntitySeedBase<cd,GridImp> (item) {}
//! copy constructor
ALU2dGridEntitySeed(const ALU2dGridEntitySeedType & org)
: ALU2dGridEntitySeedBase<cd,GridImp> (org)
{}
};
//! print alugrid entity key to std::stream
template <int cd, class GridImp>
inline std :: ostream &operator<< ( std :: ostream &out,
const ALU2dGridEntitySeed<cd,GridImp>& key)
{
out << key.item() << " " << key.level() << " " << key.face();
return out;
}
//*******************************************************************
//
// Implementation
//
//*******************************************************************
template<int codim, class GridImp >
inline ALU2dGridEntitySeedBase<codim,GridImp> ::
ALU2dGridEntitySeedBase()
: item_( 0 )
{}
template<int codim, class GridImp >
inline ALU2dGridEntitySeedBase<codim,GridImp> ::
ALU2dGridEntitySeedBase(const HElementType &item)
: item_( toKey(&item) )
{}
template<int codim, class GridImp >
inline ALU2dGridEntitySeedBase<codim,GridImp> ::
ALU2dGridEntitySeedBase(const ALU2dGridEntitySeedType & org)
: item_(org.item_)
{}
template<int codim, class GridImp >
inline ALU2dGridEntitySeedBase<codim,GridImp> &
ALU2dGridEntitySeedBase<codim,GridImp> ::
operator = (const ALU2dGridEntitySeedType & org)
{
item_ = org.item_;
return *this;
}
template<int codim, class GridImp >
inline bool ALU2dGridEntitySeedBase<codim,GridImp>::
equals (const ALU2dGridEntitySeedBase<codim,GridImp>& i) const
{
// check equality of underlying items
return (item_ == i.item_);
}
///////////////////////////////////////////////////////////////////
//
// specialisation for higher codims
//
///////////////////////////////////////////////////////////////////
template<int codim, class GridImp >
inline ALU2dGridEntitySeed<codim,GridImp> ::
ALU2dGridEntitySeed(const HElementType &item,
const int level,
const int duneFace )
: ALU2dGridEntitySeedBase<codim,GridImp> (item)
, level_(level)
, face_(duneFace)
{
assert( (codim == 1) ? (face_ >= 0) : 1 );
}
template<int codim, class GridImp >
inline ALU2dGridEntitySeed<codim,GridImp> ::
ALU2dGridEntitySeed(const ALU2dGridEntitySeedType & org)
: ALU2dGridEntitySeedBase<codim,GridImp>(org)
, level_(org.level_)
, face_(org.face_)
{}
template<int codim, class GridImp >
inline ALU2dGridEntitySeed<codim,GridImp> &
ALU2dGridEntitySeed<codim,GridImp>::
operator = (const ALU2dGridEntitySeedType & org)
{
// docu and cleanup
BaseType :: operator = ( org );
// clone other stuff
level_ = org.level_;
face_ = org.face_;
return *this;
}
template<int codim, class GridImp >
inline void
ALU2dGridEntitySeed<codim,GridImp>::clear ()
{
BaseType :: clear();
level_ = defaultValue ;
face_ = defaultValue ;
}
} // end namespace Dune
#endif
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