1 | // Boost.Range library |
2 | // |
3 | // Copyright Neil Groves 2010. Use, modification and |
4 | // distribution is subject to the Boost Software License, Version |
5 | // 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
6 | // http://www.boost.org/LICENSE_1_0.txt) |
7 | // |
8 | // |
9 | // For more information, see http://www.boost.org/libs/range/ |
10 | // |
11 | |
12 | // This test was added due to a report that the Range Adaptors: |
13 | // 1. Caused havoc when using namespace boost::adaptors was used |
14 | // 2. Did not work with non-member functions |
15 | // 3. The strided adaptor could not be composed with sliced |
16 | // |
17 | // None of these issues could be reproduced on GCC 4.4, but this |
18 | // work makes for useful additional test coverage since this |
19 | // uses chaining of adaptors and non-member functions whereas |
20 | // most of the tests avoid this use case. |
21 | |
22 | #include <boost/range/adaptor/strided.hpp> |
23 | #include <boost/range/adaptor/sliced.hpp> |
24 | #include <boost/range/adaptor/transformed.hpp> |
25 | #include <boost/range/irange.hpp> |
26 | |
27 | #include <boost/test/test_tools.hpp> |
28 | #include <boost/test/unit_test.hpp> |
29 | |
30 | #include <boost/assign.hpp> |
31 | #include <boost/range/algorithm_ext.hpp> |
32 | |
33 | #include <algorithm> |
34 | #include <vector> |
35 | |
36 | namespace boost |
37 | { |
38 | namespace |
39 | { |
40 | int times_two(int x) { return x * 2; } |
41 | |
42 | void strided_test2() |
43 | { |
44 | using namespace boost::adaptors; |
45 | using namespace boost::assign; |
46 | std::vector<int> v; |
47 | boost::push_back(on&: v, from: boost::irange(first: 0,last: 10)); |
48 | std::vector<int> z; |
49 | boost::push_back(on&: z, from: v | sliced(2,6) | strided(2) | transformed(×_two)); |
50 | std::vector<int> reference; |
51 | reference += 4,8; |
52 | BOOST_CHECK_EQUAL_COLLECTIONS( reference.begin(), reference.end(), |
53 | z.begin(), z.end() ); |
54 | } |
55 | } |
56 | } |
57 | |
58 | boost::unit_test::test_suite* |
59 | init_unit_test_suite(int argc, char* argv[]) |
60 | { |
61 | boost::unit_test::test_suite* test |
62 | = BOOST_TEST_SUITE( "RangeTestSuite.adaptor.strided2" ); |
63 | |
64 | test->add( BOOST_TEST_CASE( &boost::strided_test2 ) ); |
65 | |
66 | return test; |
67 | } |
68 | |