register functor

functor.cpp

#include <hpx/hpx.hpp>
#include <hpx/hpx_init.hpp>
#include <hpx/runtime/actions/plain_action.hpp>
#include <hpx/components/dataflow/dataflow.hpp>

#include <iostream>
#include <cstdlib>

template<class T>
struct add_
{
  typedef T result_type;
  T operator()(T const& a, T const& b)
  {
    return a+b;
  }
};

typedef hpx::actions::
plain_result_action2< int
                    , int const&
                    , int const&
                    , add_<int>
                    > add_action;

HPX_REGISTER_PLAIN_ACTION(add_action);


int hpx_main()
{
  using hpx::lcos::dataflow;
  using hpx::lcos::dataflow_base;
  hpx::naming::id_type here = hpx::find_here();

  dataflow_base<int> flow = dataflow<add_action>(here, 3, 2);
  int result = flow.get_future().get();

  std::cout << "Result: " << result << std::endl;
  return hpx::finalize();
}

int main(int argc, char **argv)
{
  return hpx::init(argc, argv);
}