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From: eachus@spectre.mitre.org (Robert I. Eachus)
Subject: Re: Java vs Ada 95 (Was Re: Once again,
 Ada absent from DoD SBIR solicitation)
Date: 1996/10/15
Message-ID: <EACHUS.96Oct15150905@spectre.mitre.org>#1/1
X-Deja-AN: 189621778
references: <325BC3B3.41C6@hso.link.com>
 <Dz2B9H.9HD.0.-s@inmet.camb.inmet.com>
organization: The Mitre Corp., Bedford, MA.
newsgroups: comp.lang.ada
Date: 1996-10-15T00:00:00+00:00
List-Id: <comp.lang.ada>


  
    For the record:
 
with System;
with Ada.Strings.Unbounded; use Ada.Strings.Unbounded;
with Ada.Text_IO; use Ada.Text_IO;
procedure GC_Test is
  P: Unbounded_String := Null_Unbounded_String;
  Mem_Size: Integer;
begin
  if System.Memory_Size >= Integer'Last
  then Mem_Size := Integer'Last;
  else Mem_Size := Integer(System.Memory_Size);
  end if;
  Put_Line(" Mem_Size set to " & Integer'Image(Mem_Size));

  for I in 1 .. Mem_Size loop
    P := To_Unbounded_String(Integer'Image(I));
    if I mod 100_000 = 0
    then Put_Line(" At I = " & To_String(P));
    end if;
  end loop;
  Put_Line("The system has garbage collection.");
exception
when Storage_Error =>
  Put_Line("The system is not legal Ada 95. " &
           " It does not implement garbage collection.");
end GC_Test;

   Is running in the background on this machine right now. (SunOS
4.1.3, gnat 3.05)  Output to date is:

spectre% gc_test
 Mem_Size set to  2147483647
 At I =  100000
 At I =  200000
 At I =  300000
 At I =  400000
 ...
 At I =  4000000
 At I =  4100000
 At I =  4200000
 At I =  4300000
 At I =  4400000
 At I =  4500000

   I may leave it running overnight, but ps shows that memory use is
steady.  Any questions?  (To translate, Ada 95 has built in GC
required--but not for all types.)
--

					Robert I. Eachus

with Standard_Disclaimer;
use  Standard_Disclaimer;
function Message (Text: in Clever_Ideas) return Better_Ideas is...