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/type_erasure/iterator.hpp>
16#include <boost/type_erasure/same_type.hpp>
17#include <boost/type_erasure/binding_of.hpp>
18#include <boost/mpl/vector.hpp>
19#include <boost/concept_check.hpp>
20
21#define BOOST_TEST_MAIN
22#include <boost/test/unit_test.hpp>
23
24using namespace boost::type_erasure;
25
26BOOST_AUTO_TEST_CASE(test_basic)
27{
28 typedef boost::mpl::vector<
29 forward_iterator<>,
30 same_type<forward_iterator<>::value_type, int>
31 > test_concept;
32 std::vector<int> vec(10);
33 any<test_concept> x(vec.begin());
34 any<test_concept> y(vec.end());
35
36 for(int i = 0; x != y; ++x, ++i) {
37 *x = i;
38 }
39 int expected[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
40 BOOST_CHECK_EQUAL_COLLECTIONS(vec.begin(), vec.end(), &expected[0], &expected[0] + 10);
41
42 BOOST_MPL_ASSERT((boost::is_same<any<test_concept>::value_type, int>));
43 BOOST_MPL_ASSERT((boost::is_same<any<test_concept>::reference, int&>));
44 BOOST_MPL_ASSERT((boost::is_same<any<test_concept>::pointer, int*>));
45 BOOST_MPL_ASSERT((boost::is_same<any<test_concept>::difference_type, std::ptrdiff_t>));
46 BOOST_MPL_ASSERT((boost::is_same<any<test_concept>::iterator_category, std::forward_iterator_tag>));
47}
48
49BOOST_AUTO_TEST_CASE(test_any_value_type)
50{
51 typedef boost::mpl::vector<
52 forward_iterator<>,
53 same_type<forward_iterator<>::value_type, _a>,
54 copy_constructible<_a>,
55 assignable<_a>,
56 incrementable<_a>
57 > test_concept;
58 std::vector<int> vec(10);
59 any<test_concept> x(vec.begin());
60 any<test_concept> y(vec.end());
61
62 for(any<test_concept, _a> i = *x; x != y; ++x, ++i) {
63 *x = i;
64 }
65 int expected[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
66 BOOST_CHECK_EQUAL_COLLECTIONS(vec.begin(), vec.end(), &expected[0], &expected[0] + 10);
67
68 BOOST_MPL_ASSERT((boost::is_same<any<test_concept>::value_type, any<test_concept, _a> >));
69 BOOST_MPL_ASSERT((boost::is_same<any<test_concept>::reference, any<test_concept, _a&> >));
70 BOOST_MPL_ASSERT((boost::is_same<any<test_concept>::pointer, any<test_concept, _a>*>));
71 BOOST_MPL_ASSERT((boost::is_same<any<test_concept>::difference_type, std::ptrdiff_t>));
72 BOOST_MPL_ASSERT((boost::is_same<any<test_concept>::iterator_category, std::forward_iterator_tag>));
73}
74
75BOOST_AUTO_TEST_CASE(test_relaxed)
76{
77 typedef boost::mpl::vector<
78 forward_iterator<>,
79 same_type<forward_iterator<>::value_type, int>,
80 relaxed
81 > test_concept;
82 std::vector<int> vec(10);
83 any<test_concept> x(vec.begin());
84 any<test_concept> y(vec.end());
85
86 for(int i = 0; x != y; ++x, ++i) {
87 *x = i;
88 }
89 int expected[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
90 BOOST_CHECK_EQUAL_COLLECTIONS(vec.begin(), vec.end(), &expected[0], &expected[0] + 10);
91
92 BOOST_MPL_ASSERT((boost::is_same<any<test_concept>::value_type, int>));
93 BOOST_MPL_ASSERT((boost::is_same<any<test_concept>::reference, int&>));
94 BOOST_MPL_ASSERT((boost::is_same<any<test_concept>::pointer, int*>));
95 BOOST_MPL_ASSERT((boost::is_same<any<test_concept>::difference_type, std::ptrdiff_t>));
96 BOOST_MPL_ASSERT((boost::is_same<any<test_concept>::iterator_category, std::forward_iterator_tag>));
97
98 BOOST_CONCEPT_ASSERT((boost::ForwardIterator<any<test_concept> >));
99}
100

source code of boost/libs/type_erasure/test/test_forward_iterator.cpp