1 // Boost.TypeErasure library
2 //
3 // Copyright 2011 Steven Watanabe
4 //
5 // Distributed under the Boost Software License Version 1.0. (See
6 // accompanying file LICENSE_1_0.txt or copy at
7 // http://www.boost.org/LICENSE_1_0.txt)
8 //
9 // $Id$
10
11 #include <boost/type_erasure/any.hpp>
12 #include <boost/type_erasure/builtin.hpp>
13 #include <boost/type_erasure/operators.hpp>
14 #include <boost/type_erasure/any_cast.hpp>
15 #include <boost/mpl/vector.hpp>
16
17 #define BOOST_TEST_MAIN
18 #include <boost/test/unit_test.hpp>
19
20 using namespace boost::type_erasure;
21
22 template<class T = _self>
23 struct common : ::boost::mpl::vector<
24 copy_constructible<T>,
25 typeid_<T>
26 > {};
27
BOOST_AUTO_TEST_CASE(test_basic)28 BOOST_AUTO_TEST_CASE(test_basic)
29 {
30 typedef ::boost::mpl::vector<common<>, dereferenceable<int&> > test_concept;
31 int i;
32 any<test_concept> x(&i);
33 BOOST_CHECK_EQUAL(&*x, &i);
34 }
35
BOOST_AUTO_TEST_CASE(test_any_result)36 BOOST_AUTO_TEST_CASE(test_any_result)
37 {
38 typedef ::boost::mpl::vector<common<>, common<_a>, dereferenceable<_a&> > test_concept;
39 typedef ::boost::mpl::map<
40 ::boost::mpl::pair<_self, int*>,
41 ::boost::mpl::pair<_a, int>
42 > types;
43 int i;
44 any<test_concept> x(&i, make_binding<types>());
45 any<test_concept, _a&> y(*x);
46 BOOST_CHECK_EQUAL(any_cast<int*>(&y), &i);
47 }
48
BOOST_AUTO_TEST_CASE(test_any_result_const)49 BOOST_AUTO_TEST_CASE(test_any_result_const)
50 {
51 typedef ::boost::mpl::vector<common<>, common<_a>, dereferenceable<const _a&> > test_concept;
52 typedef ::boost::mpl::map<
53 ::boost::mpl::pair<_self, const int*>,
54 ::boost::mpl::pair<_a, int>
55 > types;
56 const int i = 0;
57 any<test_concept> x(&i, make_binding<types>());
58 any<test_concept, const _a&> y(*x);
59 BOOST_CHECK_EQUAL(any_cast<const int*>(&y), &i);
60 }
61