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From: "Nasser M. Abbasi" <nma@12000.org>
Newsgroups: comp.lang.ada
Subject: initialize an array (1-D) at elaboration using an expression based
 on the index?
Date: Fri, 15 Oct 2010 16:03:52 -0700
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Date: 2010-10-15T16:03:52-07:00
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Ada experts:

I am not able to find an example on this.

I was wondering if in Ada I can initialize some array, where I can fill 
the content of each entry in the array based on some function of the index?

For example, in Fortran one can do this:
-----------------------
program main
   integer, parameter :: N = 10
   real, dimension(N) :: a=(/(j**2,j=1,N)/)

   print*, a
end program
------------------------
$ gfortran t3.f90
$ ./a.exe
    1.0000000       4.0000000       9.0000000       16.000000 etc....


In Ada, what would I need to do in the initialization below?
---------------------------
procedure t2 is
    N: constant integer := 10;
    a: array(1..N) of float := (others=>0.0); --??
begin
    null;
end t2;
-----------------------------

I know ofcourse I can initialize it in the body by a loop, just wanted 
to see if it is possible to do it in the elaboration.

thanks
--Nasser