| // Boost.Range library |
| // |
| // Copyright Neil Groves 2010. Use, modification and |
| // distribution is subject to the Boost Software License, Version |
| // 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
| // http://www.boost.org/LICENSE_1_0.txt) |
| // |
| // |
| // For more information, see http://www.boost.org/libs/range/ |
| // |
| |
| // This test was added due to a report that the Range Adaptors: |
| // 1. Caused havoc when using namespace boost::adaptors was used |
| // 2. Did not work with non-member functions |
| // 3. The strided adaptor could not be composed with sliced |
| // |
| // None of these issues could be reproduced on GCC 4.4, but this |
| // work makes for useful additional test coverage since this |
| // uses chaining of adaptors and non-member functions whereas |
| // most of the tests avoid this use case. |
| |
| #include <boost/range/adaptor/strided.hpp> |
| #include <boost/range/adaptor/sliced.hpp> |
| #include <boost/range/adaptor/transformed.hpp> |
| #include <boost/range/irange.hpp> |
| |
| #include <boost/test/test_tools.hpp> |
| #include <boost/test/unit_test.hpp> |
| |
| #include <boost/assign.hpp> |
| #include <boost/range/algorithm_ext.hpp> |
| |
| #include <algorithm> |
| #include <vector> |
| |
| namespace boost |
| { |
| namespace |
| { |
| int times_two(int x) { return x * 2; } |
| |
| void strided_test2() |
| { |
| using namespace boost::adaptors; |
| using namespace boost::assign; |
| std::vector<int> v; |
| boost::push_back(v, boost::irange(0,10)); |
| std::vector<int> z; |
| boost::push_back(z, v | sliced(2,6) | strided(2) | transformed(×_two)); |
| std::vector<int> reference; |
| reference += 4,8; |
| BOOST_CHECK_EQUAL_COLLECTIONS( reference.begin(), reference.end(), |
| z.begin(), z.end() ); |
| } |
| } |
| } |
| |
| boost::unit_test::test_suite* |
| init_unit_test_suite(int argc, char* argv[]) |
| { |
| boost::unit_test::test_suite* test |
| = BOOST_TEST_SUITE( "RangeTestSuite.adaptor.strided2" ); |
| |
| test->add( BOOST_TEST_CASE( &boost::strided_test2 ) ); |
| |
| return test; |
| } |