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
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
/*
* Copyright Andrey Semashev 2007 - 2013.
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or copy at
* http://www.boost.org/LICENSE_1_0.txt)
*/
/*!
* \file explicit_operator_bool_noexcept.cpp
* \author Andrey Semashev
* \date 26.04.2014
*
* \brief This test checks that explicit operator bool is noexcept when possible.
*/
#define BOOST_TEST_MODULE explicit_operator_bool_noexcept
#include <boost/config.hpp>
#if !defined(BOOST_NO_CXX11_NOEXCEPT)
#include <boost/core/lightweight_test.hpp>
#include <boost/utility/explicit_operator_bool.hpp>
namespace {
struct checkable1
{
BOOST_EXPLICIT_OPERATOR_BOOL()
bool operator! () const
{
return false;
}
};
struct checkable2
{
BOOST_CONSTEXPR_EXPLICIT_OPERATOR_BOOL()
BOOST_CONSTEXPR bool operator! () const
{
return false;
}
};
struct noexcept_checkable1
{
BOOST_EXPLICIT_OPERATOR_BOOL_NOEXCEPT()
bool operator! () const noexcept
{
return false;
}
};
struct noexcept_checkable2
{
BOOST_CONSTEXPR_EXPLICIT_OPERATOR_BOOL()
BOOST_CONSTEXPR bool operator! () const noexcept
{
return false;
}
};
} // namespace
int main(int, char*[])
{
checkable1 val1;
checkable2 val2;
noexcept_checkable1 noexcept_val1;
noexcept_checkable2 noexcept_val2;
BOOST_TEST(!noexcept(static_cast< bool >(val1)));
// constexpr functions are implicitly noexcept
BOOST_TEST(noexcept(static_cast< bool >(val2)));
BOOST_TEST(noexcept(static_cast< bool >(noexcept_val1)));
BOOST_TEST(noexcept(static_cast< bool >(noexcept_val2)));
(void)val1;
(void)val2;
(void)noexcept_val1;
(void)noexcept_val2;
return boost::report_errors();
}
#else
int main(int, char*[])
{
return 0;
}
#endif
|
