[DGD]Sizeof arrays...

[Michael J. Bacon]

	When an array or mapping is passed to an extension is there an easy way to
find out the max index, or number of key/value pairs?

	For example, when using the DGD_ARRAY_ELTS function on a mapping to return
a pointer to an array of DGD_VALUE_Ts I need to know the upper bound of the
array.


Thanks;
Michael.



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