an index of zero). If the
count passed would take the enumeration past the end of the array,
<CODE>ChunkArrayEnumRange()</CODE> will automatically stop with
the last element. You can instruct <CODE>ChunkArrayEnumRange()</CODE>
to process all elements by passing a <CODE>count</CODE> of CA_LAST_ELEMENT.</P>

<P>You can get into trouble if more than one thread of execution 
is accessing a single ChunkArray and one or both of these threads 
is using one of the ChunkArrayEnum...() routines.  The error-checking 
