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[ceph.git] / ceph / src / boost / libs / multiprecision / test / math / high_prec / test_gamma.cpp

//  (C) 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)

#include "test_gamma.hpp"
#ifdef TEST_MPFR
#include <boost/multiprecision/mpfr.hpp>
#else
#include <boost/multiprecision/cpp_bin_float.hpp>
#endif

void expected_results()
{
   //
   // Define the max and mean errors expected for
   // various compilers and platforms.
   //
   const char* largest_type;
#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
   if (boost::math::policies::digits<double, boost::math::policies::policy<> >() == boost::math::policies::digits<long double, boost::math::policies::policy<> >())
   {
      largest_type = "(long\\s+)?double";
   }
   else
   {
      largest_type = "long double";
   }
#else
   largest_type = "(long\\s+)?double";
#endif
   add_expected_result(
       ".*",                                          // compiler
       ".*",                                          // stdlib
       ".*",                                          // platform
       ".*",                                          // test type(s)
       ".*near 1.*",                                  // test data group
       ".*lgamma.*", 100000000000LL, 100000000000LL); // test function
   add_expected_result(
       ".*",                          // compiler
       ".*",                          // stdlib
       ".*",                          // platform
       ".*",                          // test type(s)
       ".*near 0.*",                  // test data group
       ".*lgamma.*", 300000, 100000); // test function
   add_expected_result(
       ".*",                 // compiler
       ".*",                 // stdlib
       ".*",                 // platform
       ".*",                 // test type(s)
       ".*",                 // test data group
       ".*", 110000, 50000); // test function

   //
   // Finish off by printing out the compiler/stdlib/platform names,
   // we do this to make it easier to mark up expected error rates.
   //
   std::cout << "Tests run with " << BOOST_COMPILER << ", "
             << BOOST_STDLIB << ", " << BOOST_PLATFORM << std::endl;
}

BOOST_AUTO_TEST_CASE(test_main)
{
   expected_results();
   BOOST_MATH_CONTROL_FP;

#ifdef TEST_MPFR
   typedef boost::multiprecision::number<boost::multiprecision::mpfr_float_backend<450> > mp_type;
   const char*                                                                            name = "number<mpfr_float_backend<450> >";
#else
   typedef boost::multiprecision::number<boost::multiprecision::cpp_bin_float<450> > mp_type;
   const char*                                                                       name = "number<cpp_bin_float<450> >";
#endif

   test_gamma(mp_type(0), name);
}