P>
This routine lets you apply a procedure to every element in a
chunk array. The routine is passed an optr to the chunk array,
a pointer (which is passed to the callback routine), and a pointer
to a Boolean callback routine. The callback routine, in turn,
is called once for each element in the array, and is passed two
arguments: a pointer to an element and the pointer which was passed
to <CODE>ChunkArrayEnum()</CODE> . If the callback routine ever
returns <EM>true</EM> for an element, <CODE>ChunkArrayEnum(