//  (C) Copyright Edward Diener 2011-2015
//  Use, modification and distribution are subject to 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 <boost/detail/lightweight_test.hpp>
#include <boost/preprocessor/cat.hpp>
#include <boost/preprocessor/control/if.hpp>
#include <boost/preprocessor/tuple/elem.hpp>

int main()
  {
  
#if BOOST_PP_VARIADICS

#define TN_GEN_ONE(p) (1)
#define TN_GEN_ZERO(p) (0)

#define TN_TEST_ONE_MORE(parameter,ens) \
        BOOST_PP_IF \
            ( \
            BOOST_PP_CAT(BOOST_PP_TUPLE_ELEM(1,0,ens),0), \
            TN_GEN_ONE, \
            TN_GEN_ZERO \
            ) \
        (parameter) \
/**/

#define TN_TEST_ONE(parameter,ens) \
    BOOST_PP_TUPLE_ELEM \
        ( \
        1, \
        0, \
        TN_TEST_ONE_MORE(parameter,ens) \
        ) \
/**/

   BOOST_TEST_EQ(TN_TEST_ONE(A,(1)),1);
   BOOST_TEST_EQ(TN_TEST_ONE(A,()),0);
    
#else

BOOST_ERROR("No variadic macro support");
  
#endif /* BOOST_PP_VARIADICS */

  return boost::report_errors();
  
  }