public static void InsertHeadList <T>(LinkedListEntry <T> listHead, LinkedListEntry <T> entry)
{
LinkedListEntry <T> flink;
flink = listHead.Flink;
entry.Flink = flink;
entry.Blink = listHead;
flink.Blink = entry;
listHead.Flink = entry;
}
public static void InsertTailList <T>(LinkedListEntry <T> listHead, LinkedListEntry <T> entry)
{
LinkedListEntry <T> blink;
blink = listHead.Blink;
entry.Flink = listHead;
entry.Blink = blink;
blink.Flink = entry;
listHead.Blink = entry;
}
public static LinkedListEntry <T> RemoveTailList <T>(LinkedListEntry <T> listHead)
{
LinkedListEntry <T> blink;
LinkedListEntry <T> entry;
entry = listHead.Blink;
blink = entry.Blink;
listHead.Blink = blink;
blink.Flink = listHead;
return(entry);
}
public static LinkedListEntry <T> RemoveHeadList <T>(LinkedListEntry <T> listHead)
{
LinkedListEntry <T> flink;
LinkedListEntry <T> entry;
entry = listHead.Flink;
flink = entry.Flink;
listHead.Flink = flink;
flink.Blink = listHead;
return(entry);
}
public static bool RemoveEntryList <T>(LinkedListEntry <T> entry)
{
LinkedListEntry <T> blink;
LinkedListEntry <T> flink;
flink = entry.Flink;
blink = entry.Blink;
blink.Flink = flink;
flink.Blink = blink;
return(flink == blink);
}
public static void InitializeListHead <T>(LinkedListEntry <T> listHead)
{
listHead.Flink = listHead.Blink = listHead;
}