1 | // Copyright Neil Groves 2009. Use, modification and |
2 | // distribution is subject to the Boost Software License, Version |
3 | // 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
4 | // http://www.boost.org/LICENSE_1_0.txt) |
5 | // |
6 | // |
7 | // For more information, see http://www.boost.org/libs/range/ |
8 | // |
9 | #include <boost/range/algorithm/rotate.hpp> |
10 | |
11 | #include <boost/test/test_tools.hpp> |
12 | #include <boost/test/unit_test.hpp> |
13 | |
14 | #include <boost/assign.hpp> |
15 | #include <algorithm> |
16 | #include <functional> |
17 | #include <list> |
18 | #include <numeric> |
19 | #include <deque> |
20 | #include <vector> |
21 | |
22 | namespace boost |
23 | { |
24 | namespace |
25 | { |
26 | template<class Container, class Iterator> |
27 | void test_rotate_impl(Container& cont, Iterator where_it) |
28 | { |
29 | Container reference(cont); |
30 | Container test(cont); |
31 | |
32 | Iterator reference_where_it = reference.begin(); |
33 | std::advance(reference_where_it, |
34 | std::distance(cont.begin(), where_it)); |
35 | |
36 | std::rotate(reference.begin(), reference_where_it, reference.end()); |
37 | |
38 | Iterator test_where_it = test.begin(); |
39 | std::advance(test_where_it, |
40 | std::distance(cont.begin(), where_it)); |
41 | |
42 | boost::rotate(test, test_where_it); |
43 | |
44 | BOOST_CHECK_EQUAL_COLLECTIONS( reference.begin(), reference.end(), |
45 | test.begin(), test.end() ); |
46 | |
47 | test = cont; |
48 | test_where_it = test.begin(); |
49 | std::advance(test_where_it, |
50 | std::distance(cont.begin(), where_it)); |
51 | |
52 | boost::rotate(boost::make_iterator_range(test), test_where_it); |
53 | |
54 | BOOST_CHECK_EQUAL_COLLECTIONS( reference.begin(), reference.end(), |
55 | test.begin(), test.end() ); |
56 | } |
57 | |
58 | template<class Container> |
59 | void test_rotate_impl(Container& cont) |
60 | { |
61 | typedef BOOST_DEDUCED_TYPENAME range_iterator<Container>::type iterator_t; |
62 | |
63 | iterator_t last = cont.end(); |
64 | for (iterator_t it = cont.begin(); it != last; ++it) |
65 | { |
66 | test_rotate_impl(cont, it); |
67 | } |
68 | } |
69 | |
70 | template<class Container> |
71 | void test_rotate_impl() |
72 | { |
73 | using namespace boost::assign; |
74 | |
75 | Container cont; |
76 | test_rotate_impl(cont); |
77 | |
78 | cont.clear(); |
79 | cont += 1; |
80 | test_rotate_impl(cont); |
81 | |
82 | cont.clear(); |
83 | cont += 1,2,3,4,5,6,7,8,9; |
84 | test_rotate_impl(cont); |
85 | } |
86 | |
87 | void test_rotate() |
88 | { |
89 | test_rotate_impl< std::vector<int> >(); |
90 | test_rotate_impl< std::list<int> >(); |
91 | test_rotate_impl< std::deque<int> >(); |
92 | } |
93 | } |
94 | } |
95 | |
96 | |
97 | boost::unit_test::test_suite* |
98 | init_unit_test_suite(int argc, char* argv[]) |
99 | { |
100 | boost::unit_test::test_suite* test |
101 | = BOOST_TEST_SUITE( "RangeTestSuite.algorithm.rotate" ); |
102 | |
103 | test->add( BOOST_TEST_CASE( &boost::test_rotate ) ); |
104 | |
105 | return test; |
106 | } |
107 | |