1 /*=============================================================================
2 Copyright (c) 2006-2007 Tobias Schwinger
3
4 Use modification and distribution are subject to the Boost Software
5 License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
6 http://www.boost.org/LICENSE_1_0.txt).
7 ==============================================================================*/
8
9 #include <boost/fusion/functional/adapter/fused_function_object.hpp>
10 #include <boost/detail/lightweight_test.hpp>
11
12 #include <boost/noncopyable.hpp>
13 #include <boost/mpl/empty_base.hpp>
14
15 #include <boost/fusion/container/generation/make_vector.hpp>
16 #include <boost/fusion/container/vector.hpp>
17
18 namespace fusion = boost::fusion;
19 using boost::noncopyable;
20
21 template <class Base = boost::mpl::empty_base>
22 struct test_func
23 : Base
24 {
25 template<typename T>
26 struct result;
27
28 template<class Self, typename T0, typename T1>
29 struct result< Self(T0, T1) >
30 {
31 typedef int type;
32 };
33
34 template <typename T0, typename T1>
operator ()test_func35 int operator()(T0 const & x, T1 const & y) const
36 {
37 return 1+x-y;
38 }
39
40 template <typename T0, typename T1>
operator ()test_func41 int operator()(T0 const & x, T1 const & y)
42 {
43 return 2+x-y;
44 }
45
46 template <typename T0, typename T1>
operator ()test_func47 int operator()(T0 & x, T1 & y) const
48 {
49 return 3+x-y;
50 }
51
52 template <typename T0, typename T1>
operator ()test_func53 int operator()(T0 & x, T1 & y)
54 {
55 return 4+x-y;
56 }
57 };
58
main()59 int main()
60 {
61 test_func<noncopyable> f;
62 fusion::fused_function_object< test_func<> > fused_func;
63 fusion::fused_function_object< test_func<noncopyable> & > fused_func_ref(f);
64 fusion::fused_function_object< test_func<> const > fused_func_c;
65 fusion::fused_function_object< test_func<> > const fused_func_c2;
66 fusion::fused_function_object< test_func<noncopyable> const & > fused_func_c_ref(f);
67
68 fusion::vector<int,char> lv_vec(1,'\004');
69 BOOST_TEST(fused_func(lv_vec) == 1);
70 BOOST_TEST(fused_func_c(lv_vec) == 0);
71 BOOST_TEST(fused_func_c2(lv_vec) == 0);
72 BOOST_TEST(fused_func_ref(lv_vec) == 1);
73 BOOST_TEST(fused_func_c_ref(lv_vec) == 0);
74
75 BOOST_TEST(fused_func(fusion::make_vector(2,'\003')) == 1);
76 BOOST_TEST(fused_func_c(fusion::make_vector(2,'\003')) == 0);
77 BOOST_TEST(fused_func_c2(fusion::make_vector(2,'\003')) == 0);
78 BOOST_TEST(fused_func_ref(fusion::make_vector(2,'\003')) == 1);
79 BOOST_TEST(fused_func_c_ref(fusion::make_vector(2,'\003')) == 0);
80
81 return boost::report_errors();
82 }
83
84