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#include <thrust/functional.h>
#include <thrust/set_operations.h>
#include <thrust/sort.h>
#include <unittest/unittest.h>
template <typename U>
void TestSetDifferenceKeyValue(size_t n)
{
typedef key_value<U, U> T;
thrust::host_vector<U> h_keys_a = unittest::random_integers<U>(n);
thrust::host_vector<U> h_values_a = unittest::random_integers<U>(n);
thrust::host_vector<U> h_keys_b = unittest::random_integers<U>(n);
thrust::host_vector<U> h_values_b = unittest::random_integers<U>(n);
thrust::host_vector<T> h_a(n), h_b(n);
for (size_t i = 0; i < n; ++i)
{
h_a[i] = T(h_keys_a[i], h_values_a[i]);
h_b[i] = T(h_keys_b[i], h_values_b[i]);
}
thrust::stable_sort(h_a.begin(), h_a.end());
thrust::stable_sort(h_b.begin(), h_b.end());
thrust::device_vector<T> d_a = h_a;
thrust::device_vector<T> d_b = h_b;
thrust::host_vector<T> h_result(n);
thrust::device_vector<T> d_result(n);
typename thrust::host_vector<T>::iterator h_end;
typename thrust::device_vector<T>::iterator d_end;
h_end = thrust::set_difference(h_a.begin(), h_a.end(), h_b.begin(), h_b.end(), h_result.begin());
h_result.resize(h_end - h_result.begin());
d_end = thrust::set_difference(d_a.begin(), d_a.end(), d_b.begin(), d_b.end(), d_result.begin());
d_result.resize(d_end - d_result.begin());
ASSERT_EQUAL_QUIET(h_result, d_result);
}
DECLARE_VARIABLE_UNITTEST(TestSetDifferenceKeyValue);
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