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#include <unittest/unittest.h>
#include <thrust/sort.h>
#include <algorithm>
using namespace unittest;
typedef unittest::type_list<
#if !(defined(__GNUC__) && (__GNUC__ <= 4) && (__GNUC_MINOR__ <= 1))
// XXX GCC 4.1 miscompiles the char sorts with -O2 for some reason
unsigned char,
#endif
unsigned short,
unsigned int,
unsigned long,
unsigned long long> UnsignedIntegerTypes;
template <typename T>
struct TestSortByKeyVariableBits
{
void operator()(const size_t n)
{
for(size_t num_bits = 0; num_bits < 8 * sizeof(T); num_bits += 3)
{
thrust::host_vector<T> h_keys = unittest::random_integers<T>(n);
const T mask = (1 << num_bits) - 1;
for(size_t i = 0; i < n; i++)
h_keys[i] &= mask;
thrust::host_vector<T> reference = h_keys;
thrust::device_vector<T> d_keys = h_keys;
thrust::host_vector<T> h_values = h_keys;
thrust::device_vector<T> d_values = d_keys;
std::sort(reference.begin(), reference.end());
thrust::sort_by_key(h_keys.begin(), h_keys.end(), h_values.begin());
thrust::sort_by_key(d_keys.begin(), d_keys.end(), d_values.begin());
ASSERT_EQUAL(reference, h_keys);
ASSERT_EQUAL(reference, h_values);
ASSERT_EQUAL(h_keys, d_keys);
ASSERT_EQUAL(h_values, d_values);
}
}
};
VariableUnitTest<TestSortByKeyVariableBits, UnsignedIntegerTypes> TestSortByKeyVariableBitsInstance;
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