| // 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/algorithm/merge.hpp> |
| |
| #include <boost/test/test_tools.hpp> |
| #include <boost/test/unit_test.hpp> |
| |
| #include <boost/assign.hpp> |
| #include <boost/bind.hpp> |
| #include <algorithm> |
| #include <functional> |
| #include <list> |
| #include <numeric> |
| #include <deque> |
| #include <vector> |
| |
| namespace boost |
| { |
| namespace |
| { |
| template<class Container1, class Container2> |
| void test(Container1& cont1, Container2& cont2) |
| { |
| typedef BOOST_DEDUCED_TYPENAME Container1::value_type value_t; |
| typedef BOOST_DEDUCED_TYPENAME std::vector<value_t>::iterator iterator_t; |
| |
| std::vector<value_t> reference_target( cont1.size() + cont2.size() ); |
| |
| iterator_t reference_it |
| = std::merge(cont1.begin(), cont1.end(), |
| cont2.begin(), cont2.end(), |
| reference_target.begin()); |
| |
| std::vector<value_t> test_target( cont1.size() + cont2.size() ); |
| |
| iterator_t test_it |
| = boost::merge(cont1, cont2, test_target.begin()); |
| |
| BOOST_CHECK_EQUAL( |
| std::distance<iterator_t>(reference_target.begin(), reference_it), |
| std::distance<iterator_t>(test_target.begin(), test_it) |
| ); |
| |
| BOOST_CHECK_EQUAL_COLLECTIONS( |
| reference_target.begin(), reference_target.end(), |
| test_target.begin(), test_target.end() |
| ); |
| |
| test_it = boost::merge(boost::make_iterator_range(cont1), |
| cont2, test_target.begin()); |
| |
| BOOST_CHECK_EQUAL( |
| std::distance<iterator_t>(reference_target.begin(), reference_it), |
| std::distance<iterator_t>(test_target.begin(), test_it) |
| ); |
| |
| BOOST_CHECK_EQUAL_COLLECTIONS( |
| reference_target.begin(), reference_target.end(), |
| test_target.begin(), test_target.end() |
| ); |
| |
| test_it = boost::merge(cont1, boost::make_iterator_range(cont2), |
| test_target.begin()); |
| |
| BOOST_CHECK_EQUAL( |
| std::distance<iterator_t>(reference_target.begin(), reference_it), |
| std::distance<iterator_t>(test_target.begin(), test_it) |
| ); |
| |
| BOOST_CHECK_EQUAL_COLLECTIONS( |
| reference_target.begin(), reference_target.end(), |
| test_target.begin(), test_target.end() |
| ); |
| |
| test_it = boost::merge(boost::make_iterator_range(cont1), |
| boost::make_iterator_range(cont2), |
| test_target.begin()); |
| |
| BOOST_CHECK_EQUAL( |
| std::distance<iterator_t>(reference_target.begin(), reference_it), |
| std::distance<iterator_t>(test_target.begin(), test_it) |
| ); |
| |
| BOOST_CHECK_EQUAL_COLLECTIONS( |
| reference_target.begin(), reference_target.end(), |
| test_target.begin(), test_target.end() |
| ); |
| } |
| |
| template<class Container, class BinaryPredicate> |
| void sort_container(Container& cont, BinaryPredicate pred) |
| { |
| typedef BOOST_DEDUCED_TYPENAME Container::value_type value_t; |
| |
| std::vector<value_t> temp(cont.begin(), cont.end()); |
| std::sort(temp.begin(), temp.end(), pred); |
| cont.assign(temp.begin(), temp.end()); |
| } |
| |
| template<class Container1, |
| class Container2, |
| class BinaryPredicate> |
| void test_pred(Container1 cont1, Container2 cont2, BinaryPredicate pred) |
| { |
| typedef BOOST_DEDUCED_TYPENAME Container1::value_type value_t; |
| typedef BOOST_DEDUCED_TYPENAME std::vector<value_t>::iterator iterator_t; |
| |
| sort_container(cont1, pred); |
| sort_container(cont2, pred); |
| |
| std::vector<value_t> reference_target( cont1.size() + cont2.size() ); |
| |
| iterator_t reference_it |
| = std::merge(cont1.begin(), cont1.end(), |
| cont2.begin(), cont2.end(), |
| reference_target.begin(), pred); |
| |
| std::vector<value_t> test_target( cont1.size() + cont2.size() ); |
| |
| iterator_t test_it |
| = boost::merge(cont1, cont2, test_target.begin(), pred); |
| |
| BOOST_CHECK_EQUAL( |
| std::distance(reference_target.begin(), reference_it), |
| std::distance(test_target.begin(), test_it) |
| ); |
| |
| BOOST_CHECK_EQUAL_COLLECTIONS( |
| reference_target.begin(), reference_target.end(), |
| test_target.begin(), test_target.end() |
| ); |
| |
| test_it = boost::merge(boost::make_iterator_range(cont1), cont2, |
| test_target.begin(), pred); |
| |
| BOOST_CHECK_EQUAL( |
| std::distance(reference_target.begin(), reference_it), |
| std::distance(test_target.begin(), test_it) |
| ); |
| |
| BOOST_CHECK_EQUAL_COLLECTIONS( |
| reference_target.begin(), reference_target.end(), |
| test_target.begin(), test_target.end() |
| ); |
| |
| test_it = boost::merge(cont1, boost::make_iterator_range(cont2), |
| test_target.begin(), pred); |
| |
| BOOST_CHECK_EQUAL( |
| std::distance(reference_target.begin(), reference_it), |
| std::distance(test_target.begin(), test_it) |
| ); |
| |
| BOOST_CHECK_EQUAL_COLLECTIONS( |
| reference_target.begin(), reference_target.end(), |
| test_target.begin(), test_target.end() |
| ); |
| |
| test_it = boost::merge(boost::make_iterator_range(cont1), |
| boost::make_iterator_range(cont2), |
| test_target.begin(), pred); |
| |
| BOOST_CHECK_EQUAL( |
| std::distance(reference_target.begin(), reference_it), |
| std::distance(test_target.begin(), test_it) |
| ); |
| |
| BOOST_CHECK_EQUAL_COLLECTIONS( |
| reference_target.begin(), reference_target.end(), |
| test_target.begin(), test_target.end() |
| ); |
| } |
| |
| template<class Container1, class Container2> |
| void test_merge_impl(Container1& cont1, Container2& cont2) |
| { |
| test(cont1, cont2); |
| test_pred(cont1, cont2, std::less<int>()); |
| test_pred(cont1, cont2, std::greater<int>()); |
| } |
| |
| template<class Container1, class Container2> |
| void test_merge_impl() |
| { |
| using namespace boost::assign; |
| |
| Container1 cont1; |
| Container2 cont2; |
| |
| test_merge_impl(cont1, cont2); |
| |
| cont1.clear(); |
| cont2.clear(); |
| cont1 += 1; |
| test_merge_impl(cont1, cont2); |
| |
| cont1.clear(); |
| cont2.clear(); |
| cont2 += 1; |
| test_merge_impl(cont1, cont2); |
| |
| cont1.clear(); |
| cont2.clear(); |
| cont1 += 1,3,5,7,9,11,13,15,17,19; |
| cont2 += 2,4,6,8,10,12,14,16,18,20; |
| test_merge_impl(cont1, cont2); |
| } |
| |
| void test_merge() |
| { |
| test_merge_impl< std::vector<int>, std::vector<int> >(); |
| test_merge_impl< std::list<int>, std::list<int> >(); |
| test_merge_impl< std::deque<int>, std::deque<int> >(); |
| |
| test_merge_impl< std::list<int>, std::vector<int> >(); |
| test_merge_impl< std::vector<int>, std::list<int> >(); |
| } |
| } |
| } |
| |
| |
| boost::unit_test::test_suite* |
| init_unit_test_suite(int argc, char* argv[]) |
| { |
| boost::unit_test::test_suite* test |
| = BOOST_TEST_SUITE( "RangeTestSuite.algorithm.merge" ); |
| |
| test->add( BOOST_TEST_CASE( &boost::test_merge ) ); |
| |
| return test; |
| } |