1 //---------------------------------------------------------------------------//
2 // Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com>
3 //
4 // Distributed under the Boost Software License, Version 1.0
5 // See accompanying file LICENSE_1_0.txt or copy at
6 // http://www.boost.org/LICENSE_1_0.txt
7 //
8 // See http://boostorg.github.com/compute for more information.
9 //---------------------------------------------------------------------------//
10
11 #define BOOST_TEST_MODULE TestPermutationIterator
12 #include <boost/test/unit_test.hpp>
13
14 #include <iterator>
15
16 #include <boost/type_traits.hpp>
17 #include <boost/static_assert.hpp>
18
19 #include <boost/compute/types.hpp>
20 #include <boost/compute/algorithm/copy.hpp>
21 #include <boost/compute/container/vector.hpp>
22 #include <boost/compute/iterator/buffer_iterator.hpp>
23 #include <boost/compute/iterator/permutation_iterator.hpp>
24
25 #include "check_macros.hpp"
26 #include "context_setup.hpp"
27
BOOST_AUTO_TEST_CASE(value_type)28 BOOST_AUTO_TEST_CASE(value_type)
29 {
30 using boost::compute::float4_;
31
32 BOOST_STATIC_ASSERT((
33 boost::is_same<
34 boost::compute::permutation_iterator<
35 boost::compute::buffer_iterator<float>,
36 boost::compute::buffer_iterator<int>
37 >::value_type,
38 float
39 >::value
40 ));
41 BOOST_STATIC_ASSERT((
42 boost::is_same<
43 boost::compute::permutation_iterator<
44 boost::compute::buffer_iterator<float4_>,
45 boost::compute::buffer_iterator<short>
46 >::value_type,
47 float4_
48 >::value
49 ));
50 }
51
BOOST_AUTO_TEST_CASE(base_type)52 BOOST_AUTO_TEST_CASE(base_type)
53 {
54 BOOST_STATIC_ASSERT((
55 boost::is_same<
56 boost::compute::permutation_iterator<
57 boost::compute::buffer_iterator<int>,
58 boost::compute::buffer_iterator<int>
59 >::base_type,
60 boost::compute::buffer_iterator<int>
61 >::value
62 ));
63 }
64
BOOST_AUTO_TEST_CASE(copy)65 BOOST_AUTO_TEST_CASE(copy)
66 {
67 int input_data[] = { 3, 4, 2, 1, 5 };
68 boost::compute::vector<int> input(input_data, input_data + 5, queue);
69
70 int map_data[] = { 3, 2, 0, 1, 4 };
71 boost::compute::vector<int> map(map_data, map_data + 5, queue);
72
73 boost::compute::vector<int> output(5, context);
74 boost::compute::copy(
75 boost::compute::make_permutation_iterator(input.begin(), map.begin()),
76 boost::compute::make_permutation_iterator(input.end(), map.end()),
77 output.begin(),
78 queue
79 );
80 CHECK_RANGE_EQUAL(int, 5, output, (1, 2, 3, 4, 5));
81 }
82
BOOST_AUTO_TEST_CASE(reverse_range_doctest)83 BOOST_AUTO_TEST_CASE(reverse_range_doctest)
84 {
85 int values_data[] = { 10, 20, 30, 40 };
86 int indices_data[] = { 3, 2, 1, 0 };
87
88 boost::compute::vector<int> values(values_data, values_data + 4, queue);
89 boost::compute::vector<int> indices(indices_data, indices_data + 4, queue);
90
91 boost::compute::vector<int> result(4, context);
92
93 //! [reverse_range]
94 // values = { 10, 20, 30, 40 }
95 // indices = { 3, 2, 1, 0 }
96
97 boost::compute::copy(
98 boost::compute::make_permutation_iterator(values.begin(), indices.begin()),
99 boost::compute::make_permutation_iterator(values.end(), indices.end()),
100 result.begin(),
101 queue
102 );
103
104 // result == { 40, 30, 20, 10 }
105 //! [reverse_range]
106
107 CHECK_RANGE_EQUAL(int, 4, result, (40, 30, 20, 10));
108 }
109
110 BOOST_AUTO_TEST_SUITE_END()
111