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067603dbda
...new with Clang trunk 13. As a rule of thumb, this change adds explicit cast-to-void silencing in those .cxx that already contained other such silencing casts and adds wholesale #pragma clang diagnostic ignored in all others. Change-Id: I1884496ee1aa81aaf3c8b3533534a4b69b185e9e Reviewed-on: https://gerrit.libreoffice.org/c/core/+/116660 Tested-by: Jenkins Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#include <o3tl/typed_flags_set.hxx>
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constexpr auto ONE = 1;
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constexpr auto TWO = 2;
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enum class Enum1 {
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ONE = 1,
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TWO = 2,
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};
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namespace o3tl {
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template<> struct typed_flags<Enum1> : is_typed_flags<Enum1, 0x3> {};
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}
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enum class Enum2 {
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ZERO = 0,
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ONE = 1,
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TWO = 2,
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};
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namespace o3tl {
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template<> struct typed_flags<Enum2> : is_typed_flags<Enum2, 0x3> {};
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}
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int main()
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{
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auto v1 = ONE & TWO; // expected-error {{expression always evaluates to zero, lhs=1 rhs=2 [loplugin:expressionalwayszero]}}
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(void)v1;
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auto v2 = Enum1::ONE & Enum1::TWO; // expected-error {{expression always evaluates to zero, lhs=1 rhs=2 [loplugin:expressionalwayszero]}}
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(void)v2;
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auto v3 = Enum2::ONE;
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auto v4 = v3 & Enum2::ZERO; // expected-error {{expression always evaluates to zero, lhs=unknown rhs=0 [loplugin:expressionalwayszero]}}
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(void)v4;
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auto v5 = Enum2::ONE;
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v5 &= Enum2::ZERO; // expected-error {{expression always evaluates to zero, lhs=unknown rhs=0 [loplugin:expressionalwayszero]}}
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(void)v5;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
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