Gabriele Cosmo
110 lines
2.9 KiB
C++
110 lines
2.9 KiB
C++
// This code implementation is the intellectual property of
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// the RD44 GEANT4 collaboration.
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//
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// By copying, distributing or modifying the Program (or any work
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// based on the Program) you indicate your acceptance of this statement,
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// and all its terms.
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//
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// $Id: gennodelist.h,v 2.2 1998/07/13 16:53:34 urbi Exp $
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// GEANT4 tag $Name: geant4-00 $
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//
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#ifndef gennodelist_h
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#define gennodelist_h
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/*
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* NIST Utils Class Library
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* clutils/gennodelist.h
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* May 1995
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* David Sauder
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* K. C. Morris
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* Development of this software was funded by the United States Government,
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* and is not subject to copyright.
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*/
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/* */
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#ifdef __O3DB__
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#include <OpenOODB.h>
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#endif
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#ifdef WIN32
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# include "G4ios.hh"
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#else
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# include <stream.h>
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#endif
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//////////////////////////////////////////////////////////////////////////////
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// class GenNodeList
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// this class implements a doubly linked List by default.
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// If you delete this object it does not delete all of its entries,
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// only its head. If you want it to delete all of its entries as well
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// as its head, you need to call DeleteEntries().
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//////////////////////////////////////////////////////////////////////////////
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class GenNodeList {
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public:
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GenNodeList(GenericNode *headNode);
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virtual ~GenNodeList() { delete head; }
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GenericNode *GetHead() { return head; }
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virtual void ClearEntries(){;}
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virtual void DeleteEntries(){;}
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// deletes node from its previous List & appends
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virtual void Append(GenericNode *node);
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// deletes newNode from its previous List & inserts in
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// relation to existNode
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virtual void InsertAfter(GenericNode *newNode, GenericNode *existNode);
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virtual void InsertBefore(GenericNode *newNode, GenericNode *existNode);
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virtual void Remove(GenericNode *node){ if (node) node->Remove(); }
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protected:
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GenericNode *head;
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};
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//////////////////////////////////////////////////////////////////////////////
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// class GenNodeList inline functions
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// these functions don't rely on any inline functions (its own or
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// other classes) that aren't in this file
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//////////////////////////////////////////////////////////////////////////////
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inline GenNodeList::GenNodeList(GenericNode *headNode)
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{
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head = headNode;
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head->next = head;
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head->prev = head;
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}
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// inserts after existNode
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inline void GenNodeList::InsertAfter(GenericNode *newNode,
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GenericNode *existNode)
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{
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newNode->next = existNode->next;
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newNode->next->prev = newNode;
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newNode->prev = existNode;
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existNode->next = newNode;
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}
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// inserts before existNode
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inline void GenNodeList::InsertBefore(GenericNode *newNode,
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GenericNode *existNode)
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{
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existNode->prev->next = newNode;
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newNode->prev = existNode->prev;
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newNode->next = existNode;
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existNode->prev = newNode;
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}
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// inserts before the head node
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inline void GenNodeList::Append(GenericNode *node)
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{
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InsertBefore(node, head);
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}
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#endif
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