// ListOfCOneAxis.cpp: implementation of the CListOfCOneAxis class. // ////////////////////////////////////////////////////////////////////// #include "stdafx.h" #include "ListOfCOneAxis.h" #include "ListException.h" #include "MMath.h" ////////////////////////////////////////////////////////////////////// // Construction/Destruction ////////////////////////////////////////////////////////////////////// CListOfCOneAxis::CListOfCOneAxis() : firstPtr(0), lastPtr(0) { } CListOfCOneAxis::~CListOfCOneAxis() { CListNodeOfCOneAxis* curPtr = firstPtr, *tmp; if(!IsEmpty()) { while(curPtr != 0) { tmp = curPtr; curPtr = curPtr->nextPtr; delete tmp; } } } void CListOfCOneAxis::Append(const COneAxis& data) { CListNodeOfCOneAxis* newPtr = new CListNodeOfCOneAxis(data); if(IsEmpty()) firstPtr = lastPtr = newPtr; else { lastPtr->nextPtr = newPtr; lastPtr = newPtr; } } void CListOfCOneAxis::Prepend(const COneAxis& data) { CListNodeOfCOneAxis* newPtr = new CListNodeOfCOneAxis(data); if(IsEmpty()) firstPtr = lastPtr = newPtr; else { newPtr->nextPtr = firstPtr; firstPtr = newPtr; } } COneAxis CListOfCOneAxis::First() const { if(IsEmpty()) throw CListException(LIST_EMPTY); return firstPtr->GetData(); } COneAxis CListOfCOneAxis::Last() const { if(IsEmpty()) throw CListException(LIST_EMPTY); return lastPtr->GetData(); } bool CListOfCOneAxis::IsEmpty() const { return (firstPtr==0); } void CListOfCOneAxis::Clear() { CListNodeOfCOneAxis* curPtr = firstPtr, *tmp; if(!IsEmpty()) { while(curPtr != 0) { tmp = curPtr; curPtr = curPtr->nextPtr; delete tmp; } firstPtr = lastPtr = 0; } } CListNodeOfCOneAxis* CListOfCOneAxis::NewNode(const COneAxis& P) { CListNodeOfCOneAxis* newPtr= new CListNodeOfCOneAxis(P); if(!newPtr) throw CListException(LIST_OUT_OF_MEMORY); newPtr->nextPtr = 0; return newPtr; }
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Math Primers for Programmers