#include <boost/parameter.hpp>
#include <iostream>
#include <ostream>

void f(int) {}

BOOST_PARAMETER_NAME(par)

BOOST_PARAMETER_FUNCTION(
    (void (*) (int)),
    testfn,
    tag,
    (required (par, *) )
)
{
  return par;
}

int main() {
  std::cout << (testfn(f) == f) << std::endl;
}