1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
/* -*- 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/.
*/
#include <o3tl/typed_flags_set.hxx>
constexpr auto ONE = 1;
constexpr auto TWO = 2;
enum class Enum1 {
ONE = 1,
TWO = 2,
};
namespace o3tl {
template<> struct typed_flags<Enum1> : is_typed_flags<Enum1, 0x3> {};
}
enum class Enum2 {
ZERO = 0,
ONE = 1,
TWO = 2,
};
namespace o3tl {
template<> struct typed_flags<Enum2> : is_typed_flags<Enum2, 0x3> {};
}
int main()
{
auto v1 = ONE & TWO; // expected-error {{expression always evaluates to zero, lhs=1 rhs=2 [loplugin:expressionalwayszero]}}
(void)v1;
auto v2 = Enum1::ONE & Enum1::TWO; // expected-error {{expression always evaluates to zero, lhs=1 rhs=2 [loplugin:expressionalwayszero]}}
(void)v2;
auto v3 = Enum2::ONE;
auto v4 = v3 & Enum2::ZERO; // expected-error {{expression always evaluates to zero, lhs=unknown rhs=0 [loplugin:expressionalwayszero]}}
(void)v4;
auto v5 = Enum2::ONE;
v5 &= Enum2::ZERO; // expected-error {{expression always evaluates to zero, lhs=unknown rhs=0 [loplugin:expressionalwayszero]}}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
|
