From: Rob Norris <firstname.lastname@baesystems.com>
Subject: Re: How to exit an Ada program with (unix shell) error code?
Date: Tue, 05 May 2009 11:49:54 +0100
Date: 2009-05-05T11:49:54+01:00 [thread overview]
Message-ID: <hm5005l6atme5c0ucjsvmt2h3dvpc3mjj6@4ax.com> (raw)
In-Reply-To: xqELl.194949$4m1.167184@bgtnsc05-news.ops.worldnet.att.net
On Mon, 04 May 2009 16:09:01 GMT, anon@anon.org (anon) wrote:
>
>--
>-- Besides the Ada.Command_Line you can just use functions for
>-- the instead of procedures for your nain program. This design is
>-- great for application where Command_Line is not used.
>--
>
>function work return Integer is
>
> begin
> return ( 0 ) ; -- no error status code
> end work ;
>
>
>
>In <49ba30c9-a1e6-4346-8618-d256f87ac301@s31g2000vbp.googlegroups.com>, reinkor <reinkor@gmail.com> writes:
>>I want to use Ada programs within unix/linux makefiles and shell
>>scripts.
>>Then these programs must sometimes exit with an exit code (error
>>status)
>>so execution of the Makefile/scripts halts.
>>
>>How I do this ?
>>
>>reinert
Further to anon's reply, when your main program is a function, you can obviously return various
other values. I think in UNIX world anything other than 0 means an error, but one can encode
different error states of your own choosing eg:
if (not File_Exists (file)) then
return (3); -- File not found
end if;
if (not In_Correct_Format (file)) then
return (15); -- Dodgy file
end if;
etc...
Also see: http://www.faqs.org/docs/abs/HTML/exitcodes.html
I have a few programs that do this, that are called from scripts that use the exit code to determine
what to do next.
next prev parent reply other threads:[~2009-05-05 10:49 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-04 9:08 How to exit an Ada program with (unix shell) error code? reinkor
2009-05-04 9:17 ` Samuel Tardieu
2009-05-04 9:26 ` reinkor
2009-05-04 9:31 ` Ludovic Brenta
2009-05-04 9:47 ` reinkor
2009-05-04 9:54 ` Martin
2009-05-04 11:38 ` sjw
2009-05-04 10:07 ` stefan-lucks
2009-05-04 13:42 ` Robert A Duff
2009-05-04 16:19 ` Martin
2009-05-07 9:48 ` anon
2009-05-04 16:09 ` anon
2009-05-05 10:49 ` Rob Norris [this message]
2009-05-05 11:15 ` Georg Bauhaus
2009-05-05 11:43 ` Martin
2009-05-05 14:57 ` Adam Beneschan
2009-05-05 15:34 ` Jean-Pierre Rosen
2009-05-06 15:28 ` Adam Beneschan
2009-05-06 22:10 ` Randy Brukardt
2009-05-07 9:08 ` anon
2009-05-07 10:01 ` Georg Bauhaus
2009-05-07 11:22 ` anon
2009-05-07 12:08 ` Martin
2009-05-07 13:34 ` Georg Bauhaus
2009-05-07 16:26 ` Adam Beneschan
2009-05-08 10:17 ` anon
2009-05-12 22:55 ` Adam Beneschan
2009-05-14 2:55 ` anon
2009-05-14 8:04 ` Martin
2009-05-14 8:39 ` Martin
2009-05-14 8:45 ` Martin
2009-05-14 9:34 ` Ludovic Brenta
2009-05-14 10:05 ` Martin
2009-05-14 12:38 ` Georg Bauhaus
2009-05-14 15:34 ` Adam Beneschan
2009-05-15 10:20 ` anon
2009-05-15 11:19 ` Martin
2009-05-05 20:48 ` anon
2009-05-05 21:01 ` Adam Beneschan
2009-05-06 11:30 ` Hibou57 (Yannick Duchêne)
2009-05-05 20:31 ` anon
2009-05-05 21:27 ` Martin
2009-05-06 8:41 ` anon
2009-05-06 9:14 ` Martin
2009-05-06 11:41 ` Georg Bauhaus
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