Dinfo< D > Class Template Reference

#include <Dinfo.h>

Inheritance diagram for Dinfo< D >:

Collaboration diagram for Dinfo< D >:

Public Member Functions
char *	allocData (unsigned int numData) const
void	assignData (char *data, unsigned int copyEntries, const char *orig, unsigned int origEntries) const
char *	copyData (const char *orig, unsigned int origEntries, unsigned int copyEntries, unsigned int startEntry) const
void	destroyData (char *d) const
	Dinfo ()
	Dinfo (bool isOneZombie)
bool	isA (const DinfoBase *other) const
unsigned int	size () const
unsigned int	sizeIncrement () const
Public Member Functions inherited from DinfoBase
	DinfoBase ()
	DinfoBase (bool isOneZombie)
bool	isOneZombie () const
virtual	~DinfoBase ()

Private Attributes
unsigned int	sizeIncrement_

Detailed Description

template<class D>
class Dinfo< D >

Definition at line 60 of file Dinfo.h.

Constructor & Destructor Documentation

template<class D>

Dinfo< D >::Dinfo ( )

inline

Definition at line 63 of file Dinfo.h.

            : sizeIncrement_( sizeof( D ) )
        {;}

template<class D>

Dinfo< D >::Dinfo ( bool  isOneZombie )

inline

Definition at line 66 of file Dinfo.h.

            : DinfoBase( isOneZombie ),
                sizeIncrement_( isOneZombie ? 0 : sizeof( D ) )
        {;}

Member Function Documentation

template<class D>

char* Dinfo< D >::allocData ( unsigned int  numData ) const

inlinevirtual

Implements DinfoBase.

Definition at line 71 of file Dinfo.h.

                                                      {
            if ( numData == 0 )
                return 0;
            else
                return reinterpret_cast< char* >( new( nothrow) D[ numData ] );
        }

template<class D>

void Dinfo< D >::assignData ( char *  copy, unsigned int  copyEntries, const char *  orig, unsigned int  origEntries  ) const

inlinevirtual

Assigns data contents from 'orig' over to 'copy'. Tiles the origEntries onto the copyEntries. So if there are fewer origEntries, the orig data contents are repeated till the copy is full.

Implements DinfoBase.

Definition at line 106 of file Dinfo.h.

References DinfoBase::isOneZombie().

        {
            if ( origEntries == 0 || copyEntries == 0 ||
                orig == 0 || data == 0 ) {
                return;
            }
            if ( isOneZombie() )
                copyEntries = 1;
            const D* origData = reinterpret_cast< const D* >( orig );
            D* tgt = reinterpret_cast< D* >( data );
            for ( unsigned int i = 0; i < copyEntries; ++i ) {
                tgt[ i ] = origData[ i % origEntries ];
            }

            /*
            for ( unsigned int i = 0; i < copyEntries; i+= origEntries ) {
                unsigned int numCopies = origEntries;
                if ( copyEntries - i < origEntries )
                    numCopies = copyEntries - i;
                for ( unsigned int j = 0; j < numCopies; ++j ) {
                    tgt[i +j] = origData[j];
                }
                // memcpy( data + i * sizeof( D ), orig, sizeof( D ) * numCopies );
                // Memcpy is fast but it does not permit for C++ to do
                // various constructor and assignment operations that are
                // important if D has pointers in it.
            }
            */
        }

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template<class D>

char* Dinfo< D >::copyData ( const char *  orig, unsigned int  origEntries, unsigned int  copyEntries, unsigned int  startEntry  ) const

inlinevirtual

Return a newly allocated copy of the original data, repeated copyEntries times. Orig data untouched. Analogous to copying a vector into a bigger one. Repeat the original data as many times as possible.

Implements DinfoBase.

Definition at line 78 of file Dinfo.h.

References DinfoBase::isOneZombie().

        {
            if ( origEntries == 0 )
                return 0;
            if ( isOneZombie() )
                copyEntries = 1;

            D* ret = new( nothrow ) D[copyEntries];
            if ( !ret )
                return 0;
            const D* origData = reinterpret_cast< const D* >( orig );
            for ( unsigned int i = 0; i < copyEntries; ++i ) {
                ret[ i ] = origData[ ( i + startEntry ) % origEntries ];
            }

            /*
            D* ret = new D[ numData * numCopies ];
            const D* origData = reinterpret_cast< const D* >( orig );
            for ( unsigned int i = 0; i < numData; ++i ) {
                for ( unsigned int j = 0; j < numCopies; ++j ) {
                    ret[ i * numCopies + j ] = origData[ i ];
                }
            }
            */
            return reinterpret_cast< char* >( ret );
        }

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template<class D>

void Dinfo< D >::destroyData ( char *  d ) const

inlinevirtual

Implements DinfoBase.

Definition at line 137 of file Dinfo.h.

                                          {
            delete[] reinterpret_cast< D* >( d );
        }

template<class D>

bool Dinfo< D >::isA ( const DinfoBase *  other ) const

inlinevirtual

Implements DinfoBase.

Definition at line 170 of file Dinfo.h.

                                                 {
            return dynamic_cast< const Dinfo< D >* >( other );
        }

template<class D>

unsigned int Dinfo< D >::size ( ) const

inlinevirtual

Implements DinfoBase.

Reimplemented in ZeroSizeDinfo< D >.

Definition at line 141 of file Dinfo.h.

                                   {
            return sizeof( D );
        }

template<class D>

unsigned int Dinfo< D >::sizeIncrement ( ) const

inlinevirtual

This little hack is used for lookups of a data entry in an array. Normally sizeIncrement is identical to size. However, if it is a OneZombie then we always need to return the original pointer, so here sizeIncrement becomes zero.

Implements DinfoBase.

Reimplemented in ZeroSizeDinfo< D >.

Definition at line 151 of file Dinfo.h.

References Dinfo< D >::sizeIncrement_.

                                           {
            return sizeIncrement_;
        }

Member Data Documentation

template<class D>

unsigned int Dinfo< D >::sizeIncrement_

private

Definition at line 174 of file Dinfo.h.

Referenced by Dinfo< D >::sizeIncrement().

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The documentation for this class was generated from the following file:

• moose-core/basecode/Dinfo.h