transform_reduce.cpp

/* Copyright (c) 2015 The Khronos Group Inc.

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  permit persons to whom the Materials are furnished to do so, subject to
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  The above copyright notice and this permission notice shall be included
  in all copies or substantial portions of the Materials.

  MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS
  KHRONOS STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS
  SPECIFICATIONS AND HEADER INFORMATION ARE LOCATED AT
     https://www.khronos.org/registry/

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*/
#include "gmock/gmock.h"

#include <vector>
#include <algorithm>
#include <cstdlib>
#include <iostream>

#include <sycl/execution_policy>
#include <experimental/algorithm>

using namespace std::experimental::parallel;

struct TransformReduceAlgorithm : public testing::Test {};

TEST_F(TransformReduceAlgorithm, TestSyclTransformReduce) {
  std::vector<int> v = {2, 1, 3, 4};

  cl::sycl::queue q;
  sycl::sycl_execution_policy<class TransformAlgorithm> snp(q);
  int result = transform_reduce(snp, v.begin(), v.end(),
                                [=](int val) { return val * 2; }, 0,
                                [=](int v1, int v2) { return v1 + v2; });

  EXPECT_TRUE(20 == result);
}

TEST_F(TransformReduceAlgorithm, TestSyclTransformReduce2) {
  std::vector<int> v;
  int n = 128;

  for (int i = 0; i < n; i++) {
    v.push_back(1);
  }

  cl::sycl::queue q;
  sycl::sycl_execution_policy<class TransformReduce2Algorithm> snp(q);
  int ressycl = transform_reduce(snp, v.begin(), v.end(),
                                 [=](int val) { return val * 2; }, 0,
                                 [=](int v1, int v2) { return v1 + v2; });

  EXPECT_TRUE( (2*128) == ressycl);
}