text: //  Copyright John Maddock 2006.
  //  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)
  //
  // Basic sanity check that header <boost/math/special_functions/next.hpp>
  // #includes all the files that it needs to.
  //
  #include <boost/math/special_functions/next.hpp>
  //
  // Note this header includes no other headers, this is
  // important if this test is to be meaningful:
  //
  #include "test_compile_result.hpp"
  
  void check()
  {
     check_result<float>(boost::math::nextafter<float>(f, f));
     check_result<double>(boost::math::nextafter<double>(d, d));
  #ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
     check_result<long double>(boost::math::nextafter<long double>(l, l));
  #endif
  
     check_result<float>(boost::math::float_next<float>(f));
     check_result<double>(boost::math::float_next<double>(d));
  #ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
     check_result<long double>(boost::math::float_next<long double>(l));
  #endif
  
     check_result<float>(boost::math::float_prior<float>(f));
     check_result<double>(boost::math::float_prior<double>(d));
  #ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
     check_result<long double>(boost::math::float_prior<long double>(l));
  #endif
  
     check_result<float>(boost::math::float_distance<float>(f, f));
     check_result<double>(boost::math::float_distance<double>(d, d));
  #ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
     check_result<long double>(boost::math::float_distance<long double>(l, l));
  #endif
  
  }
  