Function BOOST_AUTO_TEST_CASE

test/test_scan.cpp:41–89

namespace bc = boost::compute;

BOOST_AUTO_TEST_CASE(inclusive_scan_int)
{
    using boost::compute::uint_;
    using boost::compute::int_;

    int_ data[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 };
    bc::vector<int_> vector(data, data + 12, queue);
    BOOST_CHECK_EQUAL(vector.size(), size_t(12));

    bc::vector<int_> result(12, context);
    BOOST_CHECK_EQUAL(result.size(), size_t(12));

    // inclusive scan
    bc::inclusive_scan(vector.begin(), vector.end(), result.begin(), queue);
    CHECK_RANGE_EQUAL(int_, 12, result, (0, 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66));

    // in-place inclusive scan
    CHECK_RANGE_EQUAL(int_, 12, vector, (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11));
    bc::inclusive_scan(vector.begin(), vector.end(), vector.begin(), queue);
    CHECK_RANGE_EQUAL(int_, 12, vector, (0, 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66));

    // scan_on_cpu

    bc::copy(data, data + 12, vector.begin(), queue);

    // make sure parallel scan_on_cpu is used, no serial_scan
    std::string cache_key =
        "__boost_scan_cpu_4";
    boost::shared_ptr<bc::detail::parameter_cache> parameters =
        bc::detail::parameter_cache::get_global_cache(device);

    // save
    uint_ map_copy_threshold =
        parameters->get(cache_key, "serial_scan_threshold", 0);
    // force parallel scan_on_cpu
    parameters->set(cache_key, "serial_scan_threshold", 0);

    // inclusive scan
    bc::inclusive_scan(vector.begin(), vector.end(), result.begin(), queue);
    CHECK_RANGE_EQUAL(int_, 12, result, (0, 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66));

    // in-place inclusive scan
    CHECK_RANGE_EQUAL(int_, 12, vector, (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11));
    bc::inclusive_scan(vector.begin(), vector.end(), vector.begin(), queue);
    CHECK_RANGE_EQUAL(int_, 12, vector, (0, 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66));

    // restore
    parameters->set(cache_key, "serial_scan_threshold", map_copy_threshold);
}

BOOST_AUTO_TEST_CASE(exclusive_scan_int)
{