1 //---------------------------------------------------------------------------//
2 // Copyright (c) 2013-2014 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 TestDiscardIterator
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/algorithm/copy.hpp>
20 #include <boost/compute/algorithm/copy_if.hpp>
21 #include <boost/compute/algorithm/fill.hpp>
22 #include <boost/compute/lambda.hpp>
23 #include <boost/compute/container/vector.hpp>
24 #include <boost/compute/iterator/discard_iterator.hpp>
25
26 #include "check_macros.hpp"
27 #include "context_setup.hpp"
28
BOOST_AUTO_TEST_CASE(value_type)29 BOOST_AUTO_TEST_CASE(value_type)
30 {
31 BOOST_STATIC_ASSERT((
32 boost::is_same<
33 boost::compute::discard_iterator::value_type, void
34 >::value
35 ));
36 }
37
BOOST_AUTO_TEST_CASE(distance)38 BOOST_AUTO_TEST_CASE(distance)
39 {
40 BOOST_CHECK_EQUAL(
41 std::distance(
42 boost::compute::make_discard_iterator(0),
43 boost::compute::make_discard_iterator(10)
44 ),
45 std::ptrdiff_t(10)
46 );
47 BOOST_CHECK_EQUAL(
48 std::distance(
49 boost::compute::make_discard_iterator(5),
50 boost::compute::make_discard_iterator(10)
51 ),
52 std::ptrdiff_t(5)
53 );
54 }
55
BOOST_AUTO_TEST_CASE(discard_copy)56 BOOST_AUTO_TEST_CASE(discard_copy)
57 {
58 boost::compute::vector<int> vector(10, context);
59 boost::compute::fill(vector.begin(), vector.end(), 42, queue);
60
61 boost::compute::copy(
62 vector.begin(), vector.end(),
63 boost::compute::make_discard_iterator(),
64 queue
65 );
66 }
67
BOOST_AUTO_TEST_CASE(discard_copy_if)68 BOOST_AUTO_TEST_CASE(discard_copy_if)
69 {
70 int data[] = { 1, 2, 3, 4, 5, 6, 7, 8 };
71 boost::compute::vector<int> vector(data, data + 8, queue);
72
73 using boost::compute::lambda::_1;
74
75 boost::compute::discard_iterator end = boost::compute::copy_if(
76 vector.begin(), vector.end(),
77 boost::compute::make_discard_iterator(),
78 _1 > 4,
79 queue
80 );
81 BOOST_CHECK(std::distance(boost::compute::discard_iterator(), end) == 4);
82 }
83
BOOST_AUTO_TEST_CASE(discard_fill)84 BOOST_AUTO_TEST_CASE(discard_fill)
85 {
86 boost::compute::fill(
87 boost::compute::make_discard_iterator(0),
88 boost::compute::make_discard_iterator(100),
89 42,
90 queue
91 );
92 }
93
94 BOOST_AUTO_TEST_SUITE_END()
95