Re: Simple program to find average of 3 numbers

["Robert I. Eachus" <rieachus@attbi.com>]

Matthew Heaney wrote:

> But the question is: what is the base range of the "implementation
> defined integer type"?  For declarations of this style:
> 
>    type T is new Integer range 1 .. 100;
> 
> can was assume that the base range of the type includes all the values
> in Integer'Base, or only the values in the range -100 .. 100?

In that case T'Base has the same range as Integer'Base.

> With respect to the base range of the type, how do the declarations
> 
>    type T is new Integer range 1 .. 100;
>    type T is range 1 .. 100;
> 
> differ from one another?

Look at the output from the program I provided.  In the first case, the 
base type has the same characteristics as Integer'Base.  In the second 
example, look at the results of the program I ran.  The compiler can 
choose any predefined integer type for the base type.  In this case, 
GNAT choose one with a range -128..127.
-- 

                                                        Robert I. Eachus

�In an ally, considerations of house, clan, planet, race are 
insignificant beside two prime questions, which are: 1. Can he shoot? 2. 
Will he aim at your enemy?� -- from the Laiden novels by Sharon Lee and 
Steve Miller.