Stephan Bergmann 1c680d763e Avoid loplugin:faileddyncast for "unnecessary", up-casting dynamic_cast
Change-Id: Iecb943db0aff7ffc21cc2f6adb625be369255b32
Reviewed-on: https://gerrit.libreoffice.org/43606
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
2017-10-21 07:03:04 +02:00

22 lines
788 B
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
struct S1 { virtual ~S1(); };
struct S2 final: S1 {};
struct S3: S1 {};
void f(S1 * s1, S2 * s2) {
(void) dynamic_cast<S2 *>(s1);
(void) dynamic_cast<S1 *>(s2);
(void) dynamic_cast<S2 *>(s2);
(void) dynamic_cast<S3 *>(s2); // expected-error {{dynamic_cast from 'S2 *' to 'S3 *' always fails [loplugin:faileddyncast]}}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */