libs/multiprecision/test/math/high_prec/test_gamma.cpp

   1 //  (C) Copyright John Maddock 2006.
   2 //  Use, modification and distribution are subject to the
   3 //  Boost Software License, Version 1.0. (See accompanying file
   4 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #include "test_gamma.hpp"
   7 #ifdef TEST_MPFR
   8 #include <boost/multiprecision/mpfr.hpp>
   9 #else
  10 #include <boost/multiprecision/cpp_bin_float.hpp>
  11 #endif
  12
  13 void expected_results()
  14 {
  15    //
  16    // Define the max and mean errors expected for
  17    // various compilers and platforms.
  18    //
  19    const char* largest_type;
  20 #ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
  21    if (boost::math::policies::digits<double, boost::math::policies::policy<> >() == boost::math::policies::digits<long double, boost::math::policies::policy<> >())
  22    {
  23       largest_type = "(long\\s+)?double";
  24    }
  25    else
  26    {
  27       largest_type = "long double";
  28    }
  29 #else
  30    largest_type = "(long\\s+)?double";
  31 #endif
  32    add_expected_result(
  33        ".*",                                          // compiler
  34        ".*",                                          // stdlib
  35        ".*",                                          // platform
  36        ".*",                                          // test type(s)
  37        ".*near 1.*",                                  // test data group
  38        ".*lgamma.*", 100000000000LL, 100000000000LL); // test function
  39    add_expected_result(
  40        ".*",                          // compiler
  41        ".*",                          // stdlib
  42        ".*",                          // platform
  43        ".*",                          // test type(s)
  44        ".*near 0.*",                  // test data group
  45        ".*lgamma.*", 300000, 100000); // test function
  46    add_expected_result(
  47        ".*",                 // compiler
  48        ".*",                 // stdlib
  49        ".*",                 // platform
  50        ".*",                 // test type(s)
  51        ".*",                 // test data group
  52        ".*", 110000, 50000); // test function
  53
  54    //
  55    // Finish off by printing out the compiler/stdlib/platform names,
  56    // we do this to make it easier to mark up expected error rates.
  57    //
  58    std::cout << "Tests run with " << BOOST_COMPILER << ", "
  59              << BOOST_STDLIB << ", " << BOOST_PLATFORM << std::endl;
  60 }
  61
  62 BOOST_AUTO_TEST_CASE(test_main)
  63 {
  64    expected_results();
  65    BOOST_MATH_CONTROL_FP;
  66
  67 #ifdef TEST_MPFR
  68    typedef boost::multiprecision::number<boost::multiprecision::mpfr_float_backend<450> > mp_type;
  69    const char*                                                                            name = "number<mpfr_float_backend<450> >";
  70 #else
  71    typedef boost::multiprecision::number<boost::multiprecision::cpp_bin_float<450> > mp_type;
  72    const char*                                                                       name = "number<cpp_bin_float<450> >";
  73 #endif
  74
  75    test_gamma(mp_type(0), name);
  76 }