From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <J.Kraaijeveld@Askesis.nl>
Received: from ht1.ilikeinternet.nl (ht1.ilikeinternet.nl [46.17.1.212])
 by sourceware.org (Postfix) with ESMTPS id 721A03858C2F
 for <cygwin@cygwin.com>; Sat,  2 Jul 2022 14:14:55 +0000 (GMT)
DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 721A03858C2F
Authentication-Results: sourceware.org;
 dmarc=none (p=none dis=none) header.from=Askesis.nl
Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=Askesis.nl
Received: from [84.80.194.126] (helo=Obelix.Askesis.nl)
 by ht1.ilikeinternet.nl with esmtpsa (TLS1.2) tls
 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 (Exim 4.95)
 (envelope-from <J.Kraaijeveld@Askesis.nl>) id 1o7dtd-00074X-HF
 for cygwin@cygwin.com; Sat, 02 Jul 2022 16:14:53 +0200
Received: from panoramix.askesis.nl ([172.31.1.1])
 by Obelix.Askesis.nl with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.92) (envelope-from <J.Kraaijeveld@Askesis.nl>)
 id 1o7dtb-0004sc-L6
 for cygwin@cygwin.com; Sat, 02 Jul 2022 16:14:51 +0200
Message-ID: <426b02170703066d930c6f3a81f3ef9e686f69b6.camel@Askesis.nl>
Subject: Re: Unexpected zero return code from `throw std::runtime_error`
From: Joost Kraaijeveld <J.Kraaijeveld@Askesis.nl>
To: cygwin@cygwin.com
Date: Sat, 02 Jul 2022 16:14:51 +0200
In-Reply-To: <20220702132158.g6u7wo2lnokgezoc@lucy.dinwoodie.org>
References: <20220702132158.g6u7wo2lnokgezoc@lucy.dinwoodie.org>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
User-Agent: Evolution 3.44.2-1 
MIME-Version: 1.0
X-Authenticated-Id: j.kraaijeveld@askesis.nl
X-Spam-Status: No, score=-0.0 required=5.0 tests=BAYES_20, KAM_DMARC_STATUS,
 SPF_HELO_NONE, SPF_PASS,
 T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
 server2.sourceware.org
X-BeenThere: cygwin@cygwin.com
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: General Cygwin discussions and problem reports <cygwin.cygwin.com>
List-Unsubscribe: <https://cygwin.com/mailman/options/cygwin>,
 <mailto:cygwin-request@cygwin.com?subject=unsubscribe>
List-Archive: <https://cygwin.com/pipermail/cygwin/>
List-Post: <mailto:cygwin@cygwin.com>
List-Help: <mailto:cygwin-request@cygwin.com?subject=help>
List-Subscribe: <https://cygwin.com/mailman/listinfo/cygwin>,
 <mailto:cygwin-request@cygwin.com?subject=subscribe>
X-List-Received-Date: Sat, 02 Jul 2022 14:14:59 -0000

Hi,

The exception is not handled by the program. In that case "[[noreturn]]
void std::terminate()" is called by the C++-runtime. std::terminate
calls the currently installed std::terminate_handler. The default
std::terminate_handler calls std::abort. After calling std::abort an
implementation defined status is returned to the host environment that
indicates unsuccessful execution.

So basically both programs do the right thing.

--=20
Groeten,

Joost Kraaijeveld