[m-dev.] compare representation

[Ian MacLarty]

Hi,

Does anyone know if there is a way to determine if it's possible to do 
compare_representation on an arbitrary object at runtime?  I am trying 
to put univ objects into a version of a 234 tree that uses 
compare_representation instead of normal compare and have noticed that 
this doesn't work with arrays and some other types.  I don't want to 
insert such types into the 234 tree.

Ian.

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