1 // Copyright Neil Groves 2009. Use, modification and
2 // distribution is subject to the Boost Software License, Version
3 // 1.0. (See accompanying file LICENSE_1_0.txt or copy at
4 // http://www.boost.org/LICENSE_1_0.txt)
7 // For more information, see http://www.boost.org/libs/range/
9 #include <boost/range/algorithm/max_element.hpp>
11 #include <boost/test/test_tools.hpp>
12 #include <boost/test/unit_test.hpp>
14 #include <boost/assign.hpp>
15 #include <boost/range/iterator.hpp>
16 #include "../test_driver/range_return_test_driver.hpp"
24 namespace boost_range_test_algorithm_max_element
26 class max_element_test_policy
29 template< class Container
>
30 BOOST_DEDUCED_TYPENAME
boost::range_iterator
<Container
>::type
31 test_iter(Container
& cont
)
33 typedef BOOST_DEDUCED_TYPENAME
boost::range_iterator
<Container
>::type iter_t
;
34 iter_t result
= boost::max_element(cont
);
35 BOOST_CHECK( result
== boost::max_element(
36 boost::make_iterator_range(cont
)) );
40 template<boost::range_return_value return_type
>
43 template<class Container
, class Policy
>
44 BOOST_DEDUCED_TYPENAME
boost::range_return
<Container
,return_type
>::type
45 operator()(Policy
&, Container
& cont
)
47 typedef BOOST_DEDUCED_TYPENAME
boost::range_return
<Container
,return_type
>::type result_t
;
48 result_t result
= boost::max_element
<return_type
>(cont
);
49 BOOST_CHECK( result
== boost::max_element
<return_type
>(
50 boost::make_iterator_range(cont
)) );
55 template< class Container
>
56 BOOST_DEDUCED_TYPENAME
boost::range_iterator
<Container
>::type
57 reference(Container
& cont
)
59 return std::max_element(cont
.begin(), cont
.end());
64 class max_element_pred_test_policy
67 template< class Container
>
68 BOOST_DEDUCED_TYPENAME
boost::range_iterator
<Container
>::type
69 test_iter(Container
& cont
)
71 typedef BOOST_DEDUCED_TYPENAME
boost::range_iterator
<Container
>::type iter_t
;
72 iter_t result
= boost::max_element(cont
, Pred());
73 BOOST_CHECK( result
== boost::max_element(
74 boost::make_iterator_range(cont
), Pred()) );
78 Pred
pred() const { return Pred(); }
80 template< boost::range_return_value return_type
>
83 template< class Container
, class Policy
>
84 BOOST_DEDUCED_TYPENAME
boost::range_return
<Container
,return_type
>::type
85 operator()(Policy
& policy
, Container
& cont
)
87 typedef BOOST_DEDUCED_TYPENAME
boost::range_return
<Container
,return_type
>::type result_t
;
88 result_t result
= boost::max_element
<return_type
>(cont
, policy
.pred());
89 BOOST_CHECK( result
== boost::max_element
<return_type
>(
90 boost::make_iterator_range(cont
), policy
.pred()) );
95 template< class Container
>
96 BOOST_DEDUCED_TYPENAME
boost::range_iterator
<Container
>::type
97 reference(Container
& cont
)
99 return std::max_element(cont
.begin(), cont
.end(), Pred());
103 template<class Container
, class TestPolicy
>
104 void test_max_element_impl(TestPolicy policy
)
106 using namespace boost::assign
;
108 typedef BOOST_DEDUCED_TYPENAME
Container::value_type
109 value_t BOOST_RANGE_UNUSED
;
111 typedef BOOST_DEDUCED_TYPENAME
boost::remove_const
<Container
>::type
114 boost::range_test::range_return_test_driver test_driver
;
118 test_driver(cont
, policy
);
123 test_driver(cont
, policy
);
126 cont
+= 1,2,2,2,3,4,5,6,7,8,9;
128 test_driver(cont
, policy
);
131 template<class Container
>
132 void test_max_element_impl()
134 test_max_element_impl
<Container
>(max_element_test_policy());
136 test_max_element_impl
<Container
>(
137 max_element_pred_test_policy
<std::less
<int> >());
139 test_max_element_impl
<Container
>(
140 max_element_pred_test_policy
<std::greater
<int> >());
143 void test_max_element()
145 test_max_element_impl
< const std::vector
<int> >();
146 test_max_element_impl
< const std::deque
<int> >();
147 test_max_element_impl
< const std::list
<int> >();
149 test_max_element_impl
< std::vector
<int> >();
150 test_max_element_impl
< std::deque
<int> >();
151 test_max_element_impl
< std::list
<int> >();
155 boost::unit_test::test_suite
*
156 init_unit_test_suite(int argc
, char* argv
[])
158 boost::unit_test::test_suite
* test
159 = BOOST_TEST_SUITE( "RangeTestSuite.algorithm.max_element" );
161 test
->add( BOOST_TEST_CASE( &boost_range_test_algorithm_max_element::test_max_element
) );