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/*
* Copyright 2008-2013 NVIDIA Corporation
* Modifications Copyright© 2019 Advanced Micro Devices, Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <thrust/transform.h>
#include <thrust/tuple.h>
#include "test_header.hpp"
TESTS_DEFINE(TupleTransformTests, SignedIntegerTestsParams);
struct MakeTupleFunctor
{
template <typename T1, typename T2>
__host__ __device__ thrust::tuple<T1, T2> operator()(T1& lhs, T2& rhs)
{
return thrust::make_tuple(lhs, rhs);
}
};
template <int N>
struct GetFunctor
{
template <typename Tuple>
__host__ __device__
typename thrust::access_traits<typename thrust::tuple_element<N, Tuple>::type>::const_type
operator()(const Tuple& t)
{
return thrust::get<N>(t);
}
};
TYPED_TEST(TupleTransformTests, TestTupleTransform)
{
using T = typename TestFixture::input_type;
SCOPED_TRACE(testing::Message() << "with device_id= " << test::set_device_from_ctest());
for(auto size : get_sizes())
{
SCOPED_TRACE(testing::Message() << "with size= " << size);
for(auto seed : get_seeds())
{
SCOPED_TRACE(testing::Message() << "with seed= " << seed);
thrust::host_vector<T> h_t1 = get_random_data<T>(
size, std::numeric_limits<T>::min(), std::numeric_limits<T>::max(), seed);
thrust::host_vector<T> h_t2 = get_random_data<T>(
size,
std::numeric_limits<T>::min(),
std::numeric_limits<T>::max(),
seed + seed_value_addition
);
// zip up the data
thrust::host_vector<thrust::tuple<T, T>> h_tuples(size);
thrust::transform(
h_t1.begin(), h_t1.end(), h_t2.begin(), h_tuples.begin(), MakeTupleFunctor());
// copy to device
thrust::device_vector<thrust::tuple<T, T>> d_tuples = h_tuples;
thrust::device_vector<T> d_t1(size), d_t2(size);
// select 0th
thrust::transform(d_tuples.begin(), d_tuples.end(), d_t1.begin(), GetFunctor<0>());
// select 1st
thrust::transform(d_tuples.begin(), d_tuples.end(), d_t2.begin(), GetFunctor<1>());
ASSERT_EQ(h_t1, d_t1);
ASSERT_EQ(h_t2, d_t2);
ASSERT_EQ_QUIET(h_tuples, d_tuples);
}
}
}
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