| // 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/assign.hpp> |
| #include <boost/range/algorithm/permutation.hpp> |
| #include <boost/test/test_tools.hpp> |
| #include <boost/test/unit_test.hpp> |
| #include <algorithm> |
| #include <deque> |
| #include <functional> |
| #include <list> |
| #include <vector> |
| |
| namespace boost |
| { |
| namespace |
| { |
| template<class Container> |
| void test_prev_permutation_impl(const Container& cont) |
| { |
| Container reference(cont); |
| Container test(cont); |
| Container test2(cont); |
| |
| const bool reference_ret |
| = std::prev_permutation(reference.begin(), reference.end()); |
| |
| const bool test_ret = boost::prev_permutation(test); |
| |
| BOOST_CHECK( reference_ret == test_ret ); |
| |
| BOOST_CHECK_EQUAL_COLLECTIONS( |
| reference.begin(), reference.end(), |
| test.begin(), test.end() |
| ); |
| |
| BOOST_CHECK( test_ret == boost::prev_permutation( |
| boost::make_iterator_range(test2)) ); |
| |
| BOOST_CHECK_EQUAL_COLLECTIONS( |
| reference.begin(), reference.end(), |
| test2.begin(), test2.end() |
| ); |
| } |
| |
| template<class Container, class BinaryPredicate> |
| void test_prev_permutation_pred_impl(const Container& cont, |
| BinaryPredicate pred) |
| { |
| Container reference(cont); |
| Container test(cont); |
| Container test2(cont); |
| |
| const bool reference_ret |
| = std::prev_permutation(reference.begin(), reference.end(), |
| pred); |
| |
| const bool test_ret = boost::prev_permutation(test, pred); |
| |
| BOOST_CHECK( reference_ret == test_ret ); |
| |
| BOOST_CHECK_EQUAL_COLLECTIONS( |
| reference.begin(), reference.end(), |
| test.begin(), test.end() |
| ); |
| |
| BOOST_CHECK( test_ret == boost::prev_permutation( |
| boost::make_iterator_range(test2), pred) ); |
| |
| BOOST_CHECK_EQUAL_COLLECTIONS( |
| reference.begin(), reference.end(), |
| test2.begin(), test2.end() |
| ); |
| } |
| |
| template<class Container> |
| void test_prev_permutation_(const Container& cont) |
| { |
| test_prev_permutation_impl(cont); |
| test_prev_permutation_pred_impl(cont, std::less<int>()); |
| test_prev_permutation_pred_impl(cont, std::greater<int>()); |
| } |
| |
| template<class Container> |
| void run_tests() |
| { |
| using namespace boost::assign; |
| |
| Container cont; |
| test_prev_permutation_(cont); |
| |
| cont.clear(); |
| cont += 1; |
| test_prev_permutation_(cont); |
| |
| cont.clear(); |
| cont += 1,2,3,4,5,6,7,8,9; |
| test_prev_permutation_(cont); |
| } |
| |
| void test_prev_permutation() |
| { |
| run_tests< std::vector<int> >(); |
| run_tests< std::list<int> >(); |
| run_tests< 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.algorithm.prev_permutation" ); |
| |
| test->add( BOOST_TEST_CASE( &boost::test_prev_permutation ) ); |
| |
| return test; |
| } |