| // Boost.Range library |
| // |
| // Copyright Neil Groves 2009. 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/ |
| // |
| #include <boost/range/adaptor/strided.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 <deque> |
| #include <vector> |
| |
| namespace boost |
| { |
| namespace |
| { |
| const int STRIDE_SIZE = 2; |
| |
| template< class Container > |
| void strided_test_impl( Container& c ) |
| { |
| using namespace boost::adaptors; |
| |
| BOOST_ASSERT( c.size() % STRIDE_SIZE == 0 ); |
| |
| Container reference; |
| |
| { |
| typedef BOOST_DEDUCED_TYPENAME Container::const_iterator iterator_t; |
| iterator_t it = c.begin(); |
| for (iterator_t last = c.end(); |
| it != last; it += STRIDE_SIZE) |
| { |
| reference.push_back(*it); |
| } |
| } |
| |
| Container test; |
| boost::push_back( test, c | strided(2) ); |
| |
| BOOST_CHECK_EQUAL_COLLECTIONS( test.begin(), test.end(), |
| reference.begin(), reference.end() ); |
| |
| Container test2; |
| boost::push_back( test2, adaptors::stride(c, 2) ); |
| |
| BOOST_CHECK_EQUAL_COLLECTIONS( test2.begin(), test2.end(), |
| reference.begin(), reference.end() ); |
| |
| // Test the const versions: |
| const Container& cc = c; |
| Container test3; |
| boost::push_back( test3, cc | strided(2) ); |
| |
| BOOST_CHECK_EQUAL_COLLECTIONS( test3.begin(), test3.end(), |
| reference.begin(), reference.end() ); |
| |
| Container test4; |
| boost::push_back( test4, adaptors::stride(cc, 2) ); |
| |
| BOOST_CHECK_EQUAL_COLLECTIONS( test4.begin(), test4.end(), |
| reference.begin(), reference.end() ); |
| } |
| |
| template< class Container > |
| void strided_test_impl() |
| { |
| using namespace boost::assign; |
| |
| Container c; |
| |
| // Test empty |
| strided_test_impl(c); |
| |
| // Test two elements |
| c += 1,2; |
| strided_test_impl(c); |
| |
| // Test many elements |
| c += 1,1,1,2,2,3,4,5,6,6,6,7,8,9; |
| strided_test_impl(c); |
| } |
| |
| void strided_test() |
| { |
| strided_test_impl< std::vector< int > >(); |
| strided_test_impl< std::deque< int > >(); |
| } |
| } |
| } |
| |
| boost::unit_test::test_suite* |
| init_unit_test_suite(int argc, char* argv[]) |
| { |
| boost::unit_test::test_suite* test |
| = BOOST_TEST_SUITE( "RangeTestSuite.adaptor.strided" ); |
| |
| test->add( BOOST_TEST_CASE( &boost::strided_test ) ); |
| |
| return test; |
| } |