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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_and_or_test.cpp - &&, || operators
12 //
13 //  Copyright (c) 2008 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 
23 using namespace boost::placeholders;
24 
25 //
26 
f(bool x)27 bool f( bool x )
28 {
29     return x;
30 }
31 
g(bool x)32 bool g( bool x )
33 {
34     return !x;
35 }
36 
h()37 bool h()
38 {
39     BOOST_ERROR( "Short-circuit evaluation failure" );
40     return false;
41 }
42 
test(F f,A1 a1,A2 a2,R r)43 template< class F, class A1, class A2, class R > void test( F f, A1 a1, A2 a2, R r )
44 {
45     BOOST_TEST( f( a1, a2 ) == r );
46 }
47 
main()48 int main()
49 {
50     // &&
51 
52     test( boost::bind( f, true ) && boost::bind( g, true ), false, false, f( true ) && g( true ) );
53     test( boost::bind( f, true ) && boost::bind( g, false ), false, false, f( true ) && g( false ) );
54 
55     test( boost::bind( f, false ) && boost::bind( h ), false, false, f( false ) && h() );
56 
57     test( boost::bind( f, _1 ) && boost::bind( g, _2 ), true, true, f( true ) && g( true ) );
58     test( boost::bind( f, _1 ) && boost::bind( g, _2 ), true, false, f( true ) && g( false ) );
59 
60     test( boost::bind( f, _1 ) && boost::bind( h ), false, false, f( false ) && h() );
61 
62     // ||
63 
64     test( boost::bind( f, false ) || boost::bind( g, true ), false, false, f( false ) || g( true ) );
65     test( boost::bind( f, false ) || boost::bind( g, false ), false, false, f( false ) || g( false ) );
66 
67     test( boost::bind( f, true ) || boost::bind( h ), false, false, f( true ) || h() );
68 
69     test( boost::bind( f, _1 ) || boost::bind( g, _2 ), false, true, f( false ) || g( true ) );
70     test( boost::bind( f, _1 ) || boost::bind( g, _2 ), false, false, f( false ) || g( false ) );
71 
72     test( boost::bind( f, _1 ) || boost::bind( h ), true, false, f( true ) || h() );
73 
74     //
75 
76     return boost::report_errors();
77 }
78