Ticket #2823: test.cpp

#include <iostream>

#include <boost/fusion/include/vector.hpp>
#include <boost/fusion/include/list.hpp>
#include <boost/fusion/include/transform_view.hpp>

#include <boost/shared_ptr.hpp>
#include <boost/utility/result_of.hpp>

using namespace std;
using namespace boost;

struct print_and_return
{
  typedef int result_type;

  int operator()(int i) const {
    if ( (*i_)++ != i )
      cout << "    out of order" << endl;
    return i;
  }

  print_and_return(int i) : i_( new int(i) ) { }
  shared_ptr<int> i_;
};

int main(int argc, char *argv[])
{
  typedef fusion::vector<int,int> fusion_vector_t;
  typedef fusion::transform_view<fusion_vector_t, print_and_return> transform_vector_view_t;

  fusion_vector_t arg_fvec(0,1);

  cout << "* vector construct" << endl;
  fusion_vector_t fvec(transform_vector_view_t(arg_fvec, print_and_return(0)));

  cout << "* vector assign" << endl;
  fvec = transform_vector_view_t(arg_fvec, print_and_return(0));

  typedef fusion::list<int,int> fusion_list_t;
  typedef fusion::transform_view<fusion_list_t, print_and_return> transform_list_view_t;

  fusion_list_t arg_flist(0,1);

  cout << "* list construct" << endl;
  fusion_list_t flist(transform_list_view_t(arg_flist, print_and_return(0)));

  cout << "* list assign" << endl;
  flist = transform_list_view_t(arg_flist, print_and_return(0));
}