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- // 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_range_test_algorithm_min_element
- {
- class min_element_test_policy
- {
- public:
- template< class Container >
- BOOST_DEDUCED_TYPENAME boost::range_iterator<Container>::type
- test_iter(Container& cont)
- {
- typedef BOOST_DEDUCED_TYPENAME boost::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< boost::range_return_value return_type >
- struct test_range
- {
- template< class Container, class Policy >
- BOOST_DEDUCED_TYPENAME boost::range_return<Container,return_type>::type
- operator()(Policy&, Container& cont)
- {
- typedef BOOST_DEDUCED_TYPENAME boost::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 boost::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 boost::range_iterator<Container>::type
- test_iter(Container& cont)
- {
- typedef BOOST_DEDUCED_TYPENAME boost::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< boost::range_return_value return_type >
- struct test_range
- {
- template< class Container, class Policy >
- BOOST_DEDUCED_TYPENAME boost::range_return<Container,return_type>::type
- operator()(Policy& policy, Container& cont)
- {
- typedef BOOST_DEDUCED_TYPENAME boost::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 boost::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 BOOST_RANGE_UNUSED;
- typedef BOOST_DEDUCED_TYPENAME boost::remove_const<Container>::type
- container_t;
- boost::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_range_test_algorithm_min_element::test_min_element ) );
- return test;
- }
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