text: //  Copyright (c) 2015 Daniel Bourgeois
  //
  //  SPDX-License-Identifier: BSL-1.0
  //  Distributed under the Boost Software License, Version 1.0. (See accompanying
  //  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  
  #include <hpx/hpx.hpp>
  #include <hpx/hpx_init.hpp>
  #include <hpx/include/parallel_search.hpp>
  #include <hpx/modules/testing.hpp>
  
  #include <numeric>
  #include <string>
  #include <vector>
  
  void search_zero_dist_test()
  {
      using hpx::execution::par;
      using hpx::execution::seq;
      using hpx::execution::task;
      using hpx::parallel::search;
  
      typedef std::vector<int>::iterator iterator;
  
      std::vector<int> c(10007);
      std::iota(c.begin(), c.end(), 1);
      std::vector<int> h(0);
  
      hpx::future<iterator> fut_seq =
          search(seq(task), c.begin(), c.end(), h.begin(), h.end());
      hpx::future<iterator> fut_par =
          search(par(task), c.begin(), c.end(), h.begin(), h.end());
  
      HPX_TEST(fut_seq.get() == c.begin());
      HPX_TEST(fut_par.get() == c.begin());
  }
  
  int hpx_main()
  {
      search_zero_dist_test();
      return hpx::finalize();
  }
  
  int main(int argc, char* argv[])
  {
      std::vector<std::string> const cfg = {"hpx.os_threads=all"};
  
      HPX_TEST_EQ_MSG(
          hpx::init(argc, argv, cfg), 0, "HPX main exted with non-zero status");
  
      return hpx::util::report_errors();
  }
  