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#ifndef KOKKOS_TEST_VECTOR_HPP
#define KOKKOS_TEST_VECTOR_HPP

#include <gtest/gtest.h>
#include <iostream>
#include <cstdlib>
#include <cstdio>
#include <Kokkos_Vector.hpp>

namespace Test {

namespace Impl {

  template <typename Scalar, class Device>
  struct test_vector_combinations
  {
    typedef test_vector_combinations<Scalar,Device> self_type;

    typedef Scalar scalar_type;
    typedef Device execution_space;

    Scalar reference;
    Scalar result;

    template <typename Vector>
    Scalar run_me(unsigned int n){
      Vector a(n,1);


      a.push_back(2);
      a.resize(n+4);
      a[n+1] = 3;
      a[n+2] = 4;
      a[n+3] = 5;


      Scalar temp1 = a[2];
      Scalar temp2 = a[n];
      Scalar temp3 = a[n+1];

      a.assign(n+2,-1);

      a[2] = temp1;
      a[n] = temp2;
      a[n+1] = temp3;

      Scalar test1 = 0;
      for(unsigned int i=0; i<a.size(); i++)
        test1+=a[i];

      a.assign(n+1,-2);
      Scalar test2 = 0;
      for(unsigned int i=0; i<a.size(); i++)
        test2+=a[i];

      a.reserve(n+10);

      Scalar test3 = 0;
      for(unsigned int i=0; i<a.size(); i++)
        test3+=a[i];


      return (test1*test2+test3)*test2+test1*test3;
    }


    test_vector_combinations(unsigned int size)
    {
      reference = run_me<std::vector<Scalar> >(size);
      result = run_me<Kokkos::vector<Scalar,Device> >(size);
    }

   };

} // namespace Impl




template <typename Scalar, typename Device>
void test_vector_combinations(unsigned int size)
{
  Impl::test_vector_combinations<Scalar,Device> test(size);
  ASSERT_EQ( test.reference, test.result);
}

TEST_F( TEST_CATEGORY, vector_combination) {
  test_vector_combinations<int,TEST_EXECSPACE>(10);
  test_vector_combinations<int,TEST_EXECSPACE>(3057);
}

} // namespace Test

#endif //KOKKOS_TEST_UNORDERED_MAP_HPP

