project.cpp
1.64 KB
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
// Copyright 2021 Peter Dimov
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include <boost/lambda2.hpp>
#include <boost/core/lightweight_test.hpp>
#include <utility>
struct X
{
int m1;
int m2;
int f1() const
{
return m1;
}
int& f2()
{
return m2;
}
};
int main()
{
using namespace boost::lambda2;
{
X const x{ 1, 2 };
BOOST_TEST_EQ( (_1->*&X::m1)( x ), 1 );
BOOST_TEST_EQ( (_1->*&X::m2)( x ), 2 );
BOOST_TEST_EQ( (_1->*&X::f1)( x ), 1 );
}
{
X x{ 0, 0 };
BOOST_TEST_EQ( (_1->*&X::m1)( x ), 0 );
BOOST_TEST_EQ( (_1->*&X::m2)( x ), 0 );
BOOST_TEST_EQ( (_1->*&X::f1)( x ), 0 );
BOOST_TEST_EQ( (_1->*&X::f2)( x ), 0 );
#if defined(_LIBCPP_VERSION)
// https://bugs.llvm.org/show_bug.cgi?id=51753
using std::placeholders::_1;
#endif
BOOST_TEST_EQ( (_1->*&X::m1 += 1)( x ), 1 );
BOOST_TEST_EQ( (_1->*&X::m2 += 2)( x ), 2 );
BOOST_TEST_EQ( (_1->*&X::f1)( x ), 1 );
BOOST_TEST_EQ( (_1->*&X::f2)( x ), 2 );
BOOST_TEST_EQ( (_1->*&X::f2 += 3)( x ), 5 );
}
{
std::pair<int, int> const x( 1, 2 );
BOOST_TEST_EQ( (_1->*&std::pair<int, int>::first)( x ), 1 );
BOOST_TEST_EQ( (_1->*&std::pair<int, int>::second)( x ), 2 );
#if defined(_LIBCPP_VERSION)
// https://bugs.llvm.org/show_bug.cgi?id=51753
using std::placeholders::_1;
#endif
BOOST_TEST_EQ( (_1->*first)( x ), 1 );
BOOST_TEST_EQ( (_1->*second)( x ), 2 );
}
return boost::report_errors();
}