From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Schulte <eric.schulte@gmx.com>
Subject: Re: org-babel-C-ensure-main-wrap fails unless I add exit(0)
Date: Thu, 05 Apr 2012 10:56:18 -0400
Message-ID: <87lima8bxp.fsf@gmx.com>
References: <CA++fsGGyaLjnoyA+GSFg3YbOvq3x244eEBJTobSjn-ZB-rY8Fg@mail.gmail.com>
	<CA++fsGExH_452iJ=UOeMQxCzha-sUGOJy4OKt5uwoV1DYFv43Q@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain
Return-path: <emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([208.118.235.92]:37278)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <eric.schulte@gmx.com>) id 1SFpzG-0000d2-7U
	for emacs-orgmode@gnu.org; Thu, 05 Apr 2012 12:56:43 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <eric.schulte@gmx.com>) id 1SFpzC-0008LO-Fs
	for emacs-orgmode@gnu.org; Thu, 05 Apr 2012 12:56:41 -0400
Received: from mailout-us.gmx.com ([74.208.5.67]:42931)
	by eggs.gnu.org with smtp (Exim 4.71)
	(envelope-from <eric.schulte@gmx.com>) id 1SFpzC-0008L9-93
	for emacs-orgmode@gnu.org; Thu, 05 Apr 2012 12:56:38 -0400
In-Reply-To: <CA++fsGExH_452iJ=UOeMQxCzha-sUGOJy4OKt5uwoV1DYFv43Q@mail.gmail.com>
	(Dov Grobgeld's message of "Thu, 5 Apr 2012 08:25:16 +0300")
List-Id: "General discussions about Org-mode." <emacs-orgmode.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/emacs-orgmode>,
	<mailto:emacs-orgmode-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/emacs-orgmode>
List-Post: <mailto:emacs-orgmode@gnu.org>
List-Help: <mailto:emacs-orgmode-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/emacs-orgmode>,
	<mailto:emacs-orgmode-request@gnu.org?subject=subscribe>
Errors-To: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org
Sender: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org
To: Dov Grobgeld <dov.grobgeld@gmail.com>
Cc: emacs-orgmode <emacs-orgmode@gnu.org>

Dov Grobgeld <dov.grobgeld@gmail.com> writes:

> Oops. I sawthat  I wrote "do not get any error" though I meant "do not get
> any resulting output".
>

Would this alternate version work (without requiring stdlib.h)?

(defun org-babel-C-ensure-main-wrap (body)
  "Wrap body in a \"main\" function call if none exists."
  (if (string-match "^[ \t]*[intvod]+[ \t\n\r]*main[ \t]*(.*)" body)
      body
    (format "int main() {\n%s\nreturn(0);\n}\n" body)))

Thanks,

>
> On Wed, Apr 4, 2012 at 11:13, Dov Grobgeld <dov.grobgeld@gmail.com> wrote:
>
>> When running a babel C session under Linux/gcc I do not get any error
>> unless I add exit(0) as part of the C-code snippet. For some to me not
>> understood reason my program exits with error code=4, which is caught by
>> org-babel-eval and the printed output is not inserted into my buffer . I
>> solved this by adding `#include <stdlib.h>` and `exit(0);` as part of
>> org-babel-C-ensure-main-wrap .
>>
>> Should I prepare this as patch?
>>
>> Regards,
>> Dov
>>
>>

-- 
Eric Schulte
http://cs.unm.edu/~eschulte/