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// bind_rel_test.cpp - ==, !=, <, <=, >, >= operators
12//
13// Copyright (c) 2005 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/bind/bind.hpp>
21#include <boost/core/lightweight_test.hpp>
22
23using namespace boost::placeholders;
24
25//
26
27int f( int x )
28{
29 return x + x;
30}
31
32int g( int x )
33{
34 return 2 * x;
35}
36
37int main()
38{
39 int x = 4;
40 int y = x + x;
41
42 // bind op value
43
44 BOOST_TEST( ( boost::bind( f, _1 ) == y )( x ) );
45 BOOST_TEST( !( ( boost::bind( f, _1 ) != y )( x ) ) );
46
47 BOOST_TEST( !( ( boost::bind( f, _1 ) < y )( x ) ) );
48 BOOST_TEST( ( boost::bind( f, _1 ) < y + 1 )( x ) );
49
50 BOOST_TEST( !( ( boost::bind( f, _1 ) > y )( x ) ) );
51 BOOST_TEST( ( boost::bind( f, _1 ) > y - 1 )( x ) );
52
53 BOOST_TEST( !( ( boost::bind( f, _1 ) <= y - 1 )( x ) ) );
54 BOOST_TEST( ( boost::bind( f, _1 ) <= y )( x ) );
55 BOOST_TEST( ( boost::bind( f, _1 ) <= y + 1 )( x ) );
56
57 BOOST_TEST( !( ( boost::bind( f, _1 ) >= y + 1 )( x ) ) );
58 BOOST_TEST( ( boost::bind( f, _1 ) >= y )( x ) );
59 BOOST_TEST( ( boost::bind( f, _1 ) >= y - 1 )( x ) );
60
61 // bind op ref
62
63 BOOST_TEST( ( boost::bind( f, _1 ) == boost::ref( y ) )( x ) );
64 BOOST_TEST( !( ( boost::bind( f, _1 ) != boost::ref( y ) )( x ) ) );
65 BOOST_TEST( !( ( boost::bind( f, _1 ) < boost::ref( y ) )( x ) ) );
66 BOOST_TEST( !( ( boost::bind( f, _1 ) > boost::ref( y ) )( x ) ) );
67 BOOST_TEST( ( boost::bind( f, _1 ) <= boost::ref( y ) )( x ) );
68 BOOST_TEST( ( boost::bind( f, _1 ) >= boost::ref( y ) )( x ) );
69
70 // bind op placeholder
71
72 BOOST_TEST( ( boost::bind( f, _1 ) == _2 )( x, y ) );
73 BOOST_TEST( !( ( boost::bind( f, _1 ) != _2 )( x, y ) ) );
74 BOOST_TEST( !( ( boost::bind( f, _1 ) < _2 )( x, y ) ) );
75 BOOST_TEST( !( ( boost::bind( f, _1 ) > _2 )( x, y ) ) );
76 BOOST_TEST( ( boost::bind( f, _1 ) <= _2 )( x, y ) );
77 BOOST_TEST( ( boost::bind( f, _1 ) >= _2 )( x, y ) );
78
79 // bind op bind
80
81 // important: bind( f, _1 ) and bind( g, _1 ) have the same type
82 BOOST_TEST( ( boost::bind( f, _1 ) == boost::bind( g, _1 ) )( x ) );
83 BOOST_TEST( !( ( boost::bind( f, _1 ) != boost::bind( g, _1 ) )( x ) ) );
84 BOOST_TEST( !( ( boost::bind( f, _1 ) < boost::bind( g, _1 ) )( x ) ) );
85 BOOST_TEST( ( boost::bind( f, _1 ) <= boost::bind( g, _1 ) )( x ) );
86 BOOST_TEST( !( ( boost::bind( f, _1 ) > boost::bind( g, _1 ) )( x ) ) );
87 BOOST_TEST( ( boost::bind( f, _1 ) >= boost::bind( g, _1 ) )( x ) );
88
89 return boost::report_errors();
90}
91

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