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C:/temp/src/j2k/DataType/Link/DLink.cpp

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#ifndef __J2K__DLink_CPP__
#define __J2K__DLink_CPP__

#include <j2k/DataType/Link/DLink.hpp>

 // This is the freelist pointer.
 DLink* DLink::freelist = NULL;

 inline DLink::DLink()
   : element( ZERO ), next( NULL ), prev( NULL ) { }

 inline DLink::DLink( DLink* nextp )
   : element( ZERO ), next( nextp ), prev( NULL ) { }

 inline DLink::DLink( DLink* nextp, DLink* prevp )
   : next( nextp ), prev( prevp ) { }

 inline DLink::DLink( Elem  Elemval )
   : element( Elemval ), next( NULL ), prev( NULL ) { }

 inline DLink::DLink( Elem  Elemval, DLink* nextp )
   : element( Elemval ), next( nextp ), prev( NULL ) { }

 inline DLink::DLink( Elem  Elemval, DLink* nextp, DLink* prevp )
   : element( Elemval ), next( nextp ), prev( prevp ) { }

#if 0
 // Redefine NEW and DELETE, so we can use a FreeList
 void* DLink::operator new(size_t)         // Overload new
 {
   if (freelist == NULL)                   // Create new space
     return ::new DLink; 

   DLink* temp = freelist;                 // Otherwise, get from freelist
   freelist = freelist->next;
   return temp;                            // Return the Link node
 }

 void DLink::operator delete(void* ptr)    // Overload delete
 {
   ((DLink*)ptr)->next = freelist;         // Put on freelist
   freelist = (DLink*)ptr;
 }

#endif

#endif

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