-ve values in enumeration rep clauses.

[Darel Cullen <Darel@djcull.demon.co.uk.demon.co.uk>]

Hi,
   Came across an interesting problem at work today.

What happens if for example :-

type A_Type is 
        ( A, B, C );

for A_Type use
        (       
          A => -1,
          B => -2,
          C => -3
        );

for A_Type'Size use 8;

Now - to be able to extract the -ve values via unchecked_conversion
from a byte proves impossible because the use 8 creates an unsigned
byte, so whats the best way to represent negative values from a
rep-claused enumerated type ?

-- 
Darel Cullen