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 TestBufferIterator
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/reverse.hpp>
21 #include <boost/compute/container/vector.hpp>
22 #include <boost/compute/iterator/buffer_iterator.hpp>
23
24 #include "check_macros.hpp"
25 #include "context_setup.hpp"
26
27 namespace compute = boost::compute;
28
BOOST_AUTO_TEST_CASE(value_type)29 BOOST_AUTO_TEST_CASE(value_type)
30 {
31 BOOST_STATIC_ASSERT((
32 boost::is_same<
33 compute::buffer_iterator<int>::value_type, int
34 >::value
35 ));
36 BOOST_STATIC_ASSERT((
37 boost::is_same<
38 compute::buffer_iterator<float>::value_type, float
39 >::value
40 ));
41 }
42
BOOST_AUTO_TEST_CASE(reverse_external_buffer_doctest)43 BOOST_AUTO_TEST_CASE(reverse_external_buffer_doctest)
44 {
45 int data[] = { 1, 2, 3 };
46 compute::buffer buffer(context, 3 * sizeof(int));
47 queue.enqueue_write_buffer(buffer, 0, 3 * sizeof(int), data);
48
49 cl_mem external_mem_obj = buffer.get();
50
51 //! [reverse_external_buffer]
52 // create a buffer object wrapping the cl_mem object
53 boost::compute::buffer buf(external_mem_obj);
54
55 // reverse the values in the buffer
56 boost::compute::reverse(
57 boost::compute::make_buffer_iterator<int>(buf, 0),
58 boost::compute::make_buffer_iterator<int>(buf, 3),
59 queue
60 );
61 //! [reverse_external_buffer]
62
63 queue.enqueue_read_buffer(buf, 0, 3 * sizeof(int), data);
64 BOOST_CHECK_EQUAL(data[0], 3);
65 BOOST_CHECK_EQUAL(data[1], 2);
66 BOOST_CHECK_EQUAL(data[2], 1);
67 }
68
69 BOOST_AUTO_TEST_SUITE_END()
70