Function BOOST_AUTO_TEST_CASE

test/test_functional_as.cpp:25–57

namespace compute = boost::compute;

BOOST_AUTO_TEST_CASE(roundtrip_int_float)
{
    int data[] = { 1, 2, 3, 4, 5, 6, 7, 8 };
    compute::vector<int> input(8, context);
    compute::copy_n(data, 8, input.begin(), queue);

    // convert int -> float
    compute::vector<float> output(8, context);
    compute::transform(
        input.begin(),
        input.end(),
        output.begin(),
        compute::as<float>(),
        queue
    );

    // zero out input
    compute::fill(input.begin(), input.end(), 0, queue);

    // convert float -> int
    compute::transform(
        output.begin(),
        output.end(),
        input.begin(),
        compute::as<int>(),
        queue
    );

    // check values
    CHECK_RANGE_EQUAL(
        int, 8, output, (1, 2, 3, 4, 5, 6, 7, 8)
    );
}

BOOST_AUTO_TEST_SUITE_END()