ceph/src/boost/libs/math/test/test_jacobi_zeta.cpp

   1 //  Copyright John Maddock 2015
   2
   3 //  Use, modification and distribution are subject to the
   4 //  Boost Software License, Version 1.0. (See accompanying file
   5 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6
   7 #include <pch_light.hpp>
   8 #include "test_jacobi_zeta.hpp"
   9
  10 //
  11 // DESCRIPTION:
  12 // ~~~~~~~~~~~~
  13 //
  14 // This file tests the Elliptic Integral D[phi|k].
  15 // There are two sets of tests, spot
  16 // tests which compare our results with selected values computed
  17 // using the online special function calculator at
  18 // functions.wolfram.com, while the bulk of the accuracy tests
  19 // use values generated with NTL::RR at 1000-bit precision
  20 // and our generic versions of these functions.
  21 //
  22 // Note that when this file is first run on a new platform many of
  23 // these tests will fail: the default accuracy is 1 epsilon which
  24 // is too tight for most platforms.  In this situation you will
  25 // need to cast a human eye over the error rates reported and make
  26 // a judgement as to whether they are acceptable.  Either way please
  27 // report the results to the Boost mailing list.  Acceptable rates of
  28 // error are marked up below as a series of regular expressions that
  29 // identify the compiler/stdlib/platform/data-type/test-data/test-function
  30 // along with the maximum expected peek and RMS mean errors for that
  31 // test.
  32 //
  33
  34 void expected_results()
  35 {
  36    //
  37    // Define the max and mean errors expected for
  38    // various compilers and platforms.
  39    //
  40    const char* largest_type;
  41 #ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
  42    if(boost::math::policies::digits<double, boost::math::policies::policy<> >() == boost::math::policies::digits<long double, boost::math::policies::policy<> >())
  43    {
  44       largest_type = "(long\\s+)?double";
  45    }
  46    else
  47    {
  48       largest_type = "long double";
  49    }
  50 #else
  51    largest_type = "(long\\s+)?double";
  52 #endif
  53
  54    //
  55    // Catch all cases come last:
  56    //
  57    add_expected_result(
  58       ".*",                          // compiler
  59       ".*",                          // stdlib
  60       ".*",                          // platform
  61       largest_type,                  // test type(s)
  62       ".*",      // test data group
  63       ".*", 15, 6);  // test function
  64    add_expected_result(
  65       ".*",                          // compiler
  66       ".*",                          // stdlib
  67       ".*",                          // platform
  68       "real_concept",                  // test type(s)
  69       ".*",      // test data group
  70       ".*", 15, 6);  // test function
  71    //
  72    // Finish off by printing out the compiler/stdlib/platform names,
  73    // we do this to make it easier to mark up expected error rates.
  74    //
  75    std::cout << "Tests run with " << BOOST_COMPILER << ", "
  76       << BOOST_STDLIB << ", " << BOOST_PLATFORM << std::endl;
  77 }
  78
  79
  80 BOOST_AUTO_TEST_CASE( test_main )
  81 {
  82     expected_results();
  83     BOOST_MATH_CONTROL_FP;
  84 #ifndef BOOST_MATH_BUGGY_LARGE_FLOAT_CONSTANTS
  85     test_spots(0.0F, "float");
  86 #endif
  87     test_spots(0.0, "double");
  88 #ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
  89     test_spots(0.0L, "long double");
  90 #ifndef BOOST_MATH_NO_REAL_CONCEPT_TESTS
  91     test_spots(boost::math::concepts::real_concept(0), "real_concept");
  92 #endif
  93 #else
  94    std::cout << "<note>The long double tests have been disabled on this platform "
  95       "either because the long double overloads of the usual math functions are "
  96       "not available at all, or because they are too inaccurate for these tests "
  97       "to pass.</note>" << std::endl;
  98 #endif
  99
 100 }