1 /*=============================================================================
2 Copyright (c) 2001-2011 Joel de Guzman
3
4 Distributed under the Boost Software License, Version 1.0. (See accompanying
5 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
6 ==============================================================================*/
7 #include <boost/detail/lightweight_test.hpp>
8 #include <boost/fusion/container/vector/vector.hpp>
9 #include <boost/fusion/adapted/mpl.hpp>
10 #include <boost/fusion/sequence/io/out.hpp>
11 #include <boost/fusion/container/generation/make_vector.hpp>
12 #include <boost/fusion/sequence/comparison/equal_to.hpp>
13 #include <boost/fusion/algorithm/transformation/filter_if.hpp>
14 #include <boost/type_traits/is_class.hpp>
15 #include <boost/type_traits/is_same.hpp>
16 #include <boost/mpl/vector.hpp>
17 #include <boost/mpl/not.hpp>
18
19 struct X
20 {
operator char const*X21 operator char const*() const
22 {
23 return "<X-object>";
24 }
25 };
26
27 struct Y
28 {
operator char const*Y29 operator char const*() const
30 {
31 return "<Y-object>";
32 }
33 };
34
35 int
main()36 main()
37 {
38 using namespace boost::fusion;
39
40 using boost::mpl::_;
41 using boost::mpl::not_;
42 using boost::is_class;
43 using boost::is_same;
44
45 std::cout << tuple_open('[');
46 std::cout << tuple_close(']');
47 std::cout << tuple_delimiter(", ");
48
49 /// Testing filter_if
50
51 X x; Y y;
52 typedef boost::fusion::vector<Y, char, long, X, bool, double> vector_type;
53 vector_type t(y, '@', 987654, x, true, 6.6);
54
55 {
56 std::cout << filter_if<not_<is_class<_> > >(t) << std::endl;
57 BOOST_TEST((filter_if<not_<is_class<_> > >(t)
58 == make_vector('@', 987654, true, 6.6)));
59 }
60
61 {
62 std::cout << filter_if<is_class<_> >(t) << std::endl;
63 BOOST_TEST((filter_if<is_class<_> >(t)
64 == make_vector(y, x)));
65 }
66
67 {
68 typedef boost::mpl::vector<Y, char, long, X, bool> mpl_vec;
69 BOOST_TEST((filter_if<not_<is_class<_> > >(mpl_vec())
70 == make_vector(char(), long(), bool())));
71 BOOST_TEST((filter_if<is_class<_> >(mpl_vec())
72 == make_vector(y, x)));
73 }
74
75 return boost::report_errors();
76 }
77
78