Function BOOST_AUTO_TEST_CASE

test/test_nth_element.cpp:24–49

#include "context_setup.hpp"

BOOST_AUTO_TEST_CASE(nth_element_int)
{
    int data[] = { 9, 15, 1, 4, 9, 9, 4, 15, 12, 1 };
    boost::compute::vector<int> vector(10, context);

    boost::compute::copy_n(data, 10, vector.begin(), queue);

    boost::compute::nth_element(
        vector.begin(), vector.begin() + 5, vector.end(), queue
    );

    BOOST_CHECK_EQUAL(vector[5], 9);
    BOOST_VERIFY(boost::compute::is_partitioned(
        vector.begin(), vector.end(), boost::compute::_1 <= 9, queue
    ));
    BOOST_VERIFY(boost::compute::partition_point(
        vector.begin(), vector.end(), boost::compute::_1 <= 9, queue
    ) > vector.begin() + 5);

    boost::compute::copy_n(data, 10, vector.begin(), queue);

    boost::compute::nth_element(
        vector.begin(), vector.end(), vector.end(), queue
    );
    CHECK_RANGE_EQUAL(int, 10, vector, (9, 15, 1, 4, 9, 9, 4, 15, 12, 1));
}

BOOST_AUTO_TEST_CASE(nth_element_median)
{