| // 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/min_element.hpp> |
| |
| #include <boost/test/test_tools.hpp> |
| #include <boost/test/unit_test.hpp> |
| |
| #include <boost/assign.hpp> |
| #include <boost/bind.hpp> |
| #include <boost/range/iterator.hpp> |
| #include "../test_driver/range_return_test_driver.hpp" |
| #include <algorithm> |
| #include <functional> |
| #include <list> |
| #include <numeric> |
| #include <deque> |
| #include <vector> |
| |
| namespace boost |
| { |
| namespace |
| { |
| class min_element_test_policy |
| { |
| public: |
| template< class Container > |
| BOOST_DEDUCED_TYPENAME range_iterator<Container>::type |
| test_iter(Container& cont) |
| { |
| typedef BOOST_DEDUCED_TYPENAME range_iterator<Container>::type iter_t; |
| iter_t result = boost::min_element(cont); |
| BOOST_CHECK( result == boost::min_element(boost::make_iterator_range(cont)) ); |
| return result; |
| } |
| |
| template< range_return_value return_type > |
| struct test_range |
| { |
| template< class Container, class Policy > |
| BOOST_DEDUCED_TYPENAME range_return<Container,return_type>::type |
| operator()(Policy&, Container& cont) |
| { |
| typedef BOOST_DEDUCED_TYPENAME range_return<Container,return_type>::type result_t; |
| result_t result = boost::min_element<return_type>(cont); |
| BOOST_CHECK( result == boost::min_element<return_type>(boost::make_iterator_range(cont)) ); |
| return result; |
| } |
| }; |
| |
| template< class Container > |
| BOOST_DEDUCED_TYPENAME range_iterator<Container>::type |
| reference(Container& cont) |
| { |
| return std::min_element(cont.begin(), cont.end()); |
| } |
| }; |
| |
| template<class Pred> |
| class min_element_pred_test_policy |
| { |
| public: |
| template< class Container > |
| BOOST_DEDUCED_TYPENAME range_iterator<Container>::type |
| test_iter(Container& cont) |
| { |
| typedef BOOST_DEDUCED_TYPENAME range_iterator<Container>::type iter_t; |
| iter_t result = boost::min_element(cont, Pred()); |
| BOOST_CHECK( result == boost::min_element( |
| boost::make_iterator_range(cont), Pred()) ); |
| return result; |
| } |
| |
| Pred pred() const { return Pred(); } |
| |
| template< range_return_value return_type > |
| struct test_range |
| { |
| template< class Container, class Policy > |
| BOOST_DEDUCED_TYPENAME range_return<Container,return_type>::type |
| operator()(Policy& policy, Container& cont) |
| { |
| typedef BOOST_DEDUCED_TYPENAME range_return<Container,return_type>::type result_t; |
| result_t result = boost::min_element<return_type>(cont, policy.pred()); |
| BOOST_CHECK( result == boost::min_element<return_type>( |
| boost::make_iterator_range(cont), policy.pred()) ); |
| return result; |
| } |
| }; |
| |
| template< class Container > |
| BOOST_DEDUCED_TYPENAME range_iterator<Container>::type |
| reference(Container& cont) |
| { |
| return std::min_element(cont.begin(), cont.end(), Pred()); |
| } |
| }; |
| |
| template<class Container, class TestPolicy> |
| void test_min_element_impl(TestPolicy policy) |
| { |
| using namespace boost::assign; |
| |
| typedef BOOST_DEDUCED_TYPENAME Container::value_type value_t; |
| typedef BOOST_DEDUCED_TYPENAME remove_const<Container>::type container_t; |
| |
| range_test::range_return_test_driver test_driver; |
| |
| container_t cont; |
| |
| test_driver(cont, policy); |
| |
| cont.clear(); |
| cont += 1; |
| |
| test_driver(cont, policy); |
| |
| cont.clear(); |
| cont += 1,2,2,2,3,4,5,6,7,8,9; |
| |
| test_driver(cont, policy); |
| } |
| |
| template<class Container> |
| void test_min_element_impl() |
| { |
| test_min_element_impl<Container>(min_element_test_policy()); |
| |
| test_min_element_impl<Container>( |
| min_element_pred_test_policy<std::less<int> >()); |
| |
| test_min_element_impl<Container>( |
| min_element_pred_test_policy<std::greater<int> >()); |
| } |
| |
| void test_min_element() |
| { |
| test_min_element_impl< const std::vector<int> >(); |
| test_min_element_impl< const std::deque<int> >(); |
| test_min_element_impl< const std::list<int> >(); |
| |
| test_min_element_impl< std::vector<int> >(); |
| test_min_element_impl< std::deque<int> >(); |
| test_min_element_impl< 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.min_element" ); |
| |
| test->add( BOOST_TEST_CASE( &boost::test_min_element ) ); |
| |
| return test; |
| } |