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From: Philip Bradley <philip@the-shieling.demon.co.uk>
Subject: Fixed Point Numbers
Date: 1999/05/27
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Date: 1999-05-27T00:00:00+00:00
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What is the impact of the differing deltas in the following type
definitions :

type Long_Type is delta 180.0/2**31 range -180.0 .. 180.0;
for Long_Type'Small use 180.0/2**31;
for Long_Type'Size use 32;

and

type Long_Type is delta 256.0/2**31 range 
   -180.0 .. 180.0 - (180.0/2**31);
for Long_Type'Small use 180.0/2**31;
for Long_Type'Size use 32;


The first definition is the desired definition (and compiles using
Gnat).  Unfortunately the 2nd one is as close as I can get using a
different compiler - one I am having to use, but not by choice!

I am really only interested in the effect on the attributes, operators
etc. of Long_type if the 2nd definition is used rather than 1st.  Does
anyone know?


-- 
Philip Bradley