#172 Array\\\'s last\\\"-method: add multidimensionality support

[Rony G. Flatscher]

Now that the array class supports a single-dimension object as an index for multidimensional arrays, the method "last" should support that feature as well.

An implementation to support this feature may look like (tested):

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::method last -- single & multidimensional last
d=self~dimension -- get number of dimensions
if d=0 then return .nil -- no dimension yet (result of ".array~new")
if d=1 then return dimension(1)-- return size of single dimension

a=.array~new -- create & return array object
do i=1 to d -- set each index to its dimension's size
a~append(self~dimension(i)) -- use size of dimension in hand
end
return a
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[Rick McGuire]

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Committed revision 411.

[Rick McGuire]

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Remove the restriction about LAST only working on single-dimension arrays.