irregularities regarding attributes

[mfeldman@seas.gwu.edu (Michael Feldman)]

- We know that scalar types have lots of attributes, e.g.
   'first and 'last 

- We know that array types have attributes 'first and 'last as well.

In the case of the array type, if we have 
   type Vector is array (1..50) of float
   V: Vector ; 
then
   Vector'First, Vector'Last, V'First, V'last
are all permitted

but given a scalar type, say
   type Little is range -10..10;
   L : Little;

why are Little'First and Little'last defined, but not L'first and L'Last?

This is one of those maddening little irregularities for which there is
undoubtedly a rationale somewhere, but it's not obvious. Can someone
comment authoritatively? Thanks!
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Prof. Michael Feldman
Department of Electrical Engineering and Computer Science
The George Washington University
Washington, DC 20052
+1-202-994-5253
mfeldman@seas.gwu.edu
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