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List.cs
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List.cs
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using System;
namespace csdiff
{
/// <summary>
///
/// </summary>
public class ListItem
{
public ListItem m_pNext;
public ListItem m_pPrev;
public ListItem()
{
m_pNext = null;
m_pPrev = null;
}
public ListItem GetNext()
{
return m_pNext;
}
public ListItem GetPrev()
{
return m_pPrev;
}
}
/// <summary>
///
/// </summary>
public class ListAnchor
{
public ListItem m_head;
public ListItem m_tail;
public ListAnchor()
{
m_head = null;
m_tail = null;
}
public void RemoveAll()
{
m_head = null;
m_tail = null;
}
public void AddTail(ListItem item)
{
if( m_tail != null ){
m_tail.m_pNext = item;
item.m_pPrev = m_tail;
}
if( m_head == null ) m_head = item;
m_tail = item;
}
public ListItem GetHead()
{
return m_head;
}
public ListItem GetTail()
{
return m_tail;
}
public bool IsEmpty()
{
return ( m_tail == null ) && ( m_head == null );
}
}
}