/usr/include/dune/grid/alugrid/3d/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 ALU3DGRID_ENTITYKEY_HH
#define ALU3DGRID_ENTITYKEY_HH
namespace Dune
{
template<int cd, class GridImp>
class ALU3dGridEntitySeed ;
//**********************************************************************
//
// --ALU3dGridEntitySeed
// --EntitySeed
//**********************************************************************
template< int codim, class GridImp >
class ALU3dGridEntitySeedBase
{
protected:
typedef ALU3dGridEntitySeedBase< codim, GridImp > ThisType;
enum { dim = GridImp::dimension };
enum { dimworld = GridImp::dimensionworld };
typedef typename GridImp::MPICommunicatorType Comm;
friend class ALU3dGridEntity<codim,dim,GridImp>;
friend class ALU3dGridEntity< 0,dim,GridImp>;
friend class ALU3dGrid < GridImp::elementType, Comm >;
typedef ALU3dImplTraits<GridImp::elementType, Comm > ImplTraits;
typedef typename ImplTraits::template Codim<codim>::ImplementationType ImplementationType;
typedef typename ImplTraits::template Codim<codim>::InterfaceType HElementType;
typedef typename ImplTraits::template Codim<codim>::EntitySeedType KeyType ;
typedef typename ImplTraits::BNDFaceType BNDFaceType;
typedef typename ImplTraits::HBndSegType HBndSegType;
template <int cd, class Key>
struct Bnd
{
static Key* toKey(const HBndSegType*)
{
return (Key*) 0;
}
static HElementType* getItem(KeyType* key)
{
return static_cast< HElementType* > ( key );
}
static bool isGhost(KeyType*) { return false; }
static BNDFaceType* ghost( KeyType* ) { return ( BNDFaceType* ) 0; }
};
template <class Key>
struct Bnd<0, Key>
{
static Key* toKey(const HBndSegType* ghostFace)
{
return static_cast< KeyType* > (const_cast< BNDFaceType* >( static_cast<const BNDFaceType*> (ghostFace)));
}
static HElementType* getItem(KeyType* key)
{
if( key )
{
if( key->isboundary() )
{
return ((static_cast< BNDFaceType* > ( key ))->getGhost().first);
}
else
{
// we cannot cast to HElement here, since only the implementation is derived
// from hasFace
return static_cast< HElementType * > (static_cast< ImplementationType* > (key));
}
}
else
return static_cast< HElementType * > (0) ;
}
static bool isGhost(KeyType* key) { assert( key ); return key->isboundary(); }
static BNDFaceType* ghost( KeyType* key ) { assert( key ); return (static_cast< BNDFaceType* > ( key )); }
};
public:
static const int defaultValue = -1 ;
static const int defaultTwist = 0 ;
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 ALU3dGridEntitySeedType;
//! make type of entity pointer implementation available in derived classes
typedef ALU3dGridEntitySeed<codimension,GridImp> EntitySeedImp;
//! Destructor
~ALU3dGridEntitySeedBase()
{
#ifndef NDEBUG
// clear pointer
clear();
#endif
}
//! Constructor for EntitySeed that points to an element
ALU3dGridEntitySeedBase();
//! Constructor for EntitySeed that points to an element
ALU3dGridEntitySeedBase(const HElementType& item);
//! Constructor for EntitySeed that points to an element
ALU3dGridEntitySeedBase(const HElementType* item, const HBndSegType* ghostFace );
//! Constructor for EntitySeed that points to an ghost
ALU3dGridEntitySeedBase(const HBndSegType& ghostFace );
/////////////////////////////////////////////////////////////
//
// interface methods
//
/////////////////////////////////////////////////////////////
//! copy constructor
ALU3dGridEntitySeedBase(const ALU3dGridEntitySeedType & org);
//! equality operator
bool operator == (const ALU3dGridEntitySeedType& i) const
{
return equals( i );
}
//! inequality operator
bool operator != (const ALU3dGridEntitySeedType& 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 ALU3dGridEntitySeedType& i) const;
//! invalidate seed
void clear()
{
item_ = 0;
}
//! get item from key
HElementType* item() const { return Bnd<codim,KeyType>::getItem( item_ ); }
//! return iterior item
HElementType* interior() const
{
assert( ! isGhost() );
return static_cast< HElementType * > (static_cast< ImplementationType* > (item_));
}
//! methods for ghosts
bool isGhost() const { return Bnd<codim,KeyType>::isGhost( item_ ); }
BNDFaceType* ghost() const
{
assert( isGhost() );
return Bnd<codim,KeyType>::ghost( item_ );
}
KeyType* toKey(const HElementType* item)
{
return static_cast< KeyType* > (const_cast< ImplementationType* > (static_cast<const ImplementationType* > (item)));
}
void set(const HElementType& item)
{
item_ = toKey( &item );
}
KeyType* toKey( const HBndSegType* ghostFace )
{
return Bnd<codim,KeyType>::toKey( ghostFace );
}
void set(const HBndSegType& ghostFace)
{
item_ = toKey( &ghostFace );
}
int level () const { return defaultValue; }
int twist () const { return defaultTwist; }
int face () const { return defaultValue; }
protected:
// pointer to item
mutable KeyType* item_;
};
template<int cd, class GridImp>
class ALU3dGridEntitySeed :
public ALU3dGridEntitySeedBase<cd,GridImp>
{
typedef ALU3dGridEntitySeedBase<cd,GridImp> BaseType;
typedef ALU3dGridEntitySeed <cd,GridImp> ThisType;
enum { dim = GridImp::dimension };
enum { dimworld = GridImp::dimensionworld };
typedef typename GridImp::MPICommunicatorType Comm;
friend class ALU3dGridEntity<cd,dim,GridImp>;
friend class ALU3dGridEntity< 0,dim,GridImp>;
friend class ALU3dGrid < GridImp::elementType, Comm >;
typedef ALU3dImplTraits< GridImp::elementType, Comm > ImplTraits;
typedef typename ImplTraits::template Codim<cd>::ImplementationType ImplementationType;
typedef typename ImplTraits::template Codim<cd>::InterfaceType HElementType;
typedef typename ImplTraits::BNDFaceType BNDFaceType;
typedef ALU3dGridEntity<cd,dim,GridImp> ALU3dGridEntityType;
public:
using BaseType :: defaultValue ;
using BaseType :: defaultTwist ;
//! type of Entity
typedef typename GridImp::template Codim<cd>::Entity Entity;
//! typedef of my type
typedef ALU3dGridEntitySeed<cd,GridImp> ALU3dGridEntitySeedType;
//! Constructor for EntitySeed that points to an element
ALU3dGridEntitySeed(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
ALU3dGridEntitySeed(const HElementType & item,
const int level,
const int twist = defaultTwist,
const int duneFace = defaultValue
);
//! Constructor for EntitySeed that points to an element
ALU3dGridEntitySeed()
: BaseType(), level_(defaultValue), twist_(defaultTwist), face_(defaultValue) {}
//! Constructor for EntitySeed that points to given entity
ALU3dGridEntitySeed(const ALU3dGridEntityType& entity)
: ALU3dGridEntitySeedBase<cd,GridImp> (entity.getItem()),
level_(entity.level()), twist_(defaultTwist), face_(defaultValue)
{}
//! copy constructor
ALU3dGridEntitySeed(const ALU3dGridEntitySeedType & 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 )
{
BaseType :: set( item );
level_ = level ;
}
//! return level
int level () const { return level_ ; }
//! return twist
int twist () const { return twist_ ; }
//! return face
int face () const { return face_ ; }
using BaseType :: set ;
bool operator == (const ALU3dGridEntitySeedType& i) const
{
return equals( i );
}
bool operator != (const ALU3dGridEntitySeedType& i) const
{
return ! equals( i );
}
//! equality, calls BaseType equals
bool equals (const ALU3dGridEntitySeedType& 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_;
// twist of face, for codim 1 only
int twist_;
// 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 ALU3dGridEntitySeedBase
template<class GridImp>
class ALU3dGridEntitySeed<0,GridImp> :
public ALU3dGridEntitySeedBase<0,GridImp>
{
protected:
typedef ALU3dGridEntitySeedBase<0,GridImp> BaseType;
enum { cd = 0 };
typedef ALU3dGridEntitySeed <cd,GridImp> ThisType;
enum { dim = GridImp::dimension };
enum { dimworld = GridImp::dimensionworld };
typedef typename GridImp::MPICommunicatorType Comm;
friend class ALU3dGridEntity<cd,dim,GridImp>;
friend class ALU3dGridEntity< 0,dim,GridImp>;
friend class ALU3dGrid < GridImp::elementType, Comm >;
typedef ALU3dImplTraits<GridImp::elementType, Comm > ImplTraits;
typedef typename ImplTraits::template Codim<cd>::ImplementationType ImplementationType;
typedef typename ImplTraits::template Codim<cd>::InterfaceType HElementType;
typedef typename ImplTraits::BNDFaceType BNDFaceType;
typedef typename ImplTraits::HBndSegType HBndSegType;
typedef ALU3dGridEntity< 0,dim,GridImp> ALU3dGridEntityType ;
public:
using BaseType :: defaultValue ;
using BaseType :: defaultTwist ;
//! type of Entity
typedef typename GridImp::template Codim<cd>::Entity Entity;
//! typedef of my type
typedef ThisType ALU3dGridEntitySeedType;
//! Constructor for EntitySeed that points to an element
ALU3dGridEntitySeed() : BaseType() {}
//! Constructor for EntitySeed that points to an interior element
ALU3dGridEntitySeed(const HElementType& item)
: ALU3dGridEntitySeedBase<cd,GridImp> (item) {}
//! Constructor for EntitySeed that points to an interior element
ALU3dGridEntitySeed(const HElementType& item, int , int , int )
: ALU3dGridEntitySeedBase<cd,GridImp> (item) {}
//! Constructor for EntitySeed that points to an ghost
ALU3dGridEntitySeed(const HBndSegType& ghostFace )
: ALU3dGridEntitySeedBase<cd,GridImp> ( ghostFace ) {}
//! copy constructor
ALU3dGridEntitySeed(const ALU3dGridEntitySeedType & org)
: ALU3dGridEntitySeedBase<cd,GridImp> (org)
{}
};
//! print alugrid entity key to std::stream
template <int cd, class GridImp>
inline std :: ostream &operator<< ( std :: ostream &out,
const ALU3dGridEntitySeed<cd,GridImp>& key)
{
out << key.item() << " " << key.level() << " " << key.twist() << " " << key.face();
return out;
}
//*******************************************************************
//
// Implementation
//
//*******************************************************************
template<int codim, class GridImp >
inline ALU3dGridEntitySeedBase<codim,GridImp> ::
ALU3dGridEntitySeedBase()
: item_( 0 )
{}
template<int codim, class GridImp >
inline ALU3dGridEntitySeedBase<codim,GridImp> ::
ALU3dGridEntitySeedBase(const HElementType &item)
: item_( toKey(&item) )
{}
template<int codim, class GridImp >
inline ALU3dGridEntitySeedBase<codim,GridImp> ::
ALU3dGridEntitySeedBase(const HBndSegType& ghostFace )
: item_( toKey(&ghostFace) )
{}
template<int codim, class GridImp >
inline ALU3dGridEntitySeedBase<codim,GridImp> ::
ALU3dGridEntitySeedBase(const ALU3dGridEntitySeedType & org)
: item_(org.item_)
{}
template<int codim, class GridImp >
inline ALU3dGridEntitySeedBase<codim,GridImp> &
ALU3dGridEntitySeedBase<codim,GridImp> ::
operator = (const ALU3dGridEntitySeedType & org)
{
item_ = org.item_;
return *this;
}
template<int codim, class GridImp >
inline bool ALU3dGridEntitySeedBase<codim,GridImp>::
equals (const ALU3dGridEntitySeedBase<codim,GridImp>& i) const
{
// check equality of underlying items
return (item_ == i.item_);
}
///////////////////////////////////////////////////////////////////
//
// specialisation for higher codims
//
///////////////////////////////////////////////////////////////////
template<int codim, class GridImp >
inline ALU3dGridEntitySeed<codim,GridImp> ::
ALU3dGridEntitySeed(const HElementType &item,
const int level,
const int twist,
const int duneFace )
: ALU3dGridEntitySeedBase<codim,GridImp> (item)
, level_(level)
, twist_ (twist)
, face_(duneFace) // duneFace can be -1 when face was created by Face Iterator
{}
template<int codim, class GridImp >
inline ALU3dGridEntitySeed<codim,GridImp> ::
ALU3dGridEntitySeed(const ALU3dGridEntitySeedType & org)
: ALU3dGridEntitySeedBase<codim,GridImp>(org)
, level_(org.level_)
, twist_(org.twist_)
, face_(org.face_)
{}
template<int codim, class GridImp >
inline ALU3dGridEntitySeed<codim,GridImp> &
ALU3dGridEntitySeed<codim,GridImp>::
operator = (const ALU3dGridEntitySeedType & org)
{
// docu and cleanup
BaseType :: operator = ( org );
// clone other stuff
level_ = org.level_;
twist_ = org.twist_;
face_ = org.face_;
return *this;
}
template<int codim, class GridImp >
inline void
ALU3dGridEntitySeed<codim,GridImp>::clear ()
{
BaseType :: clear();
level_ = defaultValue ;
twist_ = defaultTwist ;
face_ = defaultValue ;
}
} // end namespace Dune
#endif
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