1#include <boost/config.hpp>
2
3#if defined(BOOST_MSVC)
4#pragma warning(disable: 4786) // identifier truncated in debug info
5#pragma warning(disable: 4710) // function not inlined
6#pragma warning(disable: 4711) // function selected for automatic inline expansion
7#pragma warning(disable: 4514) // unreferenced inline removed
8#endif
9
10//
11// mem_fn_dm_test.cpp - data members
12//
13// Copyright 2005, 2024 Peter Dimov
14//
15// Distributed under the Boost Software License, Version 1.0. (See
16// accompanying file LICENSE_1_0.txt or copy at
17// http://www.boost.org/LICENSE_1_0.txt)
18//
19
20#include <boost/mem_fn.hpp>
21#include <boost/shared_ptr.hpp>
22#include <boost/core/ref.hpp>
23#include <boost/core/lightweight_test.hpp>
24#include <boost/config/workaround.hpp>
25
26struct X
27{
28 int m;
29};
30
31int main()
32{
33 X x = { .m: 0 };
34
35 boost::mem_fn( pm: &X::m )( x ) = 401;
36
37 BOOST_TEST( x.m == 401 );
38 BOOST_TEST( boost::mem_fn( &X::m )( x ) == 401 );
39
40 boost::mem_fn( pm: &X::m )( &x ) = 502;
41
42 BOOST_TEST( x.m == 502 );
43 BOOST_TEST( boost::mem_fn( &X::m )( &x ) == 502 );
44
45 X * px = &x;
46
47 boost::mem_fn( pm: &X::m )( px ) = 603;
48
49 BOOST_TEST( x.m == 603 );
50 BOOST_TEST( boost::mem_fn( &X::m )( px ) == 603 );
51
52 X const & cx = x;
53 X const * pcx = &x;
54
55 BOOST_TEST( boost::mem_fn( &X::m )( cx ) == 603 );
56 BOOST_TEST( boost::mem_fn( &X::m )( pcx ) == 603 );
57
58 BOOST_TEST_EQ( boost::mem_fn( &X::m )( boost::ref( x ) ), 603 );
59 BOOST_TEST_EQ( boost::mem_fn( &X::m )( boost::cref( x ) ), 603 );
60
61#if !BOOST_WORKAROUND(BOOST_MSVC, < 1900)
62
63 boost::mem_fn( pm: &X::m )( boost::ref( t&: x ) ) = 704;
64 BOOST_TEST_EQ( x.m, 704 );
65
66#endif
67
68 boost::shared_ptr<X> sp( new X() );
69 boost::shared_ptr<X const> csp( sp );
70
71 sp->m = 805;
72
73 BOOST_TEST_EQ( boost::mem_fn( &X::m )( sp ), 805 );
74 BOOST_TEST_EQ( boost::mem_fn( &X::m )( csp ), 805 );
75
76#if !BOOST_WORKAROUND(BOOST_MSVC, < 1900)
77
78 boost::mem_fn( pm: &X::m )( sp ) = 906;
79 BOOST_TEST_EQ( sp->m, 906 );
80
81#endif
82
83 return boost::report_errors();
84}
85

source code of boost/libs/bind/test/mem_fn_dm_test.cpp