From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-0.9 required=5.0 tests=BAYES_00,FORGED_GMAIL_RCVD,
	FREEMAIL_FROM autolearn=no autolearn_force=no version=3.4.4
X-Google-Thread: 103376,f91205dad8b4d2db
X-Google-Attributes: gid103376,domainid0,public,usenet
X-Google-Language: ENGLISH,ASCII-7-bit
Path: 
 g2news2.google.com!postnews.google.com!b38g2000prf.googlegroups.com!not-for-mail
From: AndreiK <andrei.krivoshei@gmail.com>
Newsgroups: comp.lang.ada
Subject: Re: Directory Operations
Date: Tue, 4 Nov 2008 05:52:00 -0800 (PST)
Organization: http://groups.google.com
Message-ID: 
 <153a9dfc-96d4-4e7d-a54e-14f8f4d49c09@b38g2000prf.googlegroups.com>
References: 
 <91990db2-68b4-4710-ba9b-b3a9d8375cad@e38g2000prn.googlegroups.com>
NNTP-Posting-Host: 193.40.240.135
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
X-Trace: posting.google.com 1225806720 7932 127.0.0.1 (4 Nov 2008 13:52:00
 GMT)
X-Complaints-To: groups-abuse@google.com
NNTP-Posting-Date: Tue, 4 Nov 2008 13:52:00 +0000 (UTC)
Complaints-To: groups-abuse@google.com
Injection-Info: b38g2000prf.googlegroups.com; posting-host=193.40.240.135;
	posting-account=kfQcmwoAAAAImQIpF8z0neulU3uSEwPV
User-Agent: G2/1.0
X-HTTP-UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.0.3)
	Gecko/2008092417 Firefox/3.0.3,gzip(gfe),gzip(gfe)
Xref: g2news2.google.com comp.lang.ada:8293
Date: 2008-11-04T05:52:00-08:00
List-Id: <comp.lang.ada>

Now the problem not seems to be in string representaion.
The example code is below.
Calling the function "Test_DLL" from fad.dll without using
"Ada.Directories" works perfectly.
However, uncommenting the line <Path: String :=
Ada.Directories.Current_Directory;> gives non working variant.
Try to call the same function from the DLL now finishes by the DLL
crash.
The line <Path: String := Ada.Directories.Current_Directory;> do
nothing usefull in the example, but it must not invite the DLL to
crash.

Can somebody explain, what is wrong?
May be some compiler, builder, linker switches can be a cause of such
behaviour?
I am using the GNAT compiler from GPS+GNAT(MinGW) complect under
Windows XP.
The DLL was tested using the NI LabVIEW and "ExecDLL (http://
www.codeproject.com/KB/DLL/Execute_DLL_Function.aspx)"

Thanks for everybody for advices.

---------------------------
-- fad.ads ----------------
---------------------------
with Ada.Directories;

package FAD is

   function Pwd return String;   -- I don't use it now
   pragma Export(C, Pwd, "pwd");
   function Pwd return String renames
Ada.Directories.Current_Directory;

   function Test_DLL(A, B: in Integer) return Integer;
   pragma Export(C, Test_DLL, "Test_DLL");

end FAD;

---------------------------
-- fad.adb ----------------
---------------------------
package body FAD is

   function Test_DLL(A, B: in Integer) return Integer is
-- ==>  Path: String := Ada.Directories.Current_Directory;
   begin
      return A*B;
   end Test_DLL;

end FAD;