ceph/src/boost/libs/math/test/handle_test_result.hpp

   1 //  (C) Copyright John Maddock 2006-7.
   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 #ifndef BOOST_MATH_HANDLE_TEST_RESULT
   7 #define BOOST_MATH_HANDLE_TEST_RESULT
   8
   9 #include <boost/math/tools/stats.hpp>
  10 #include <boost/math/tools/test.hpp>
  11 #include <boost/math/tools/precision.hpp>
  12 #include <boost/regex.hpp>
  13 #include <boost/test/test_tools.hpp>
  14 #include <iostream>
  15 #include <iomanip>
  16
  17 #if defined(BOOST_INTEL)
  18 #  pragma warning(disable:239)
  19 #  pragma warning(disable:264)
  20 #endif
  21
  22 //
  23 // Every client of this header has to define this function,
  24 // and initialise the table of expected results:
  25 //
  26 void expected_results();
  27
  28 typedef std::pair<boost::regex, std::pair<boost::uintmax_t, boost::uintmax_t> > expected_data_type;
  29 typedef std::list<expected_data_type> list_type;
  30
  31 inline list_type&
  32    get_expected_data()
  33 {
  34    static list_type data;
  35    return data;
  36 }
  37
  38 inline void add_expected_result(
  39    const char* compiler,
  40    const char* library,
  41    const char* platform,
  42    const char* type_name,
  43    const char* test_name,
  44    const char* group_name,
  45    boost::uintmax_t max_peek_error,
  46    boost::uintmax_t max_mean_error)
  47 {
  48    std::string re("(?:");
  49    re += compiler;
  50    re += ")";
  51    re += "\\|";
  52    re += "(?:";
  53    re += library;
  54    re += ")";
  55    re += "\\|";
  56    re += "(?:";
  57    re += platform;
  58    re += ")";
  59    re += "\\|";
  60    re += "(?:";
  61    re += type_name;
  62    re += ")";
  63    re += "\\|";
  64    re += "(?:";
  65    re += test_name;
  66    re += ")";
  67    re += "\\|";
  68    re += "(?:";
  69    re += group_name;
  70    re += ")";
  71    get_expected_data().push_back(
  72       std::make_pair(boost::regex(re, boost::regex::perl | boost::regex::icase),
  73          std::make_pair(max_peek_error, max_mean_error)));
  74 }
  75
  76 inline std::string build_test_name(const char* type_name, const char* test_name, const char* group_name)
  77 {
  78    std::string result(BOOST_COMPILER);
  79    result += "|";
  80    result += BOOST_STDLIB;
  81    result += "|";
  82    result += BOOST_PLATFORM;
  83    result += "|";
  84    result += type_name;
  85    result += "|";
  86    result += group_name;
  87    result += "|";
  88    result += test_name;
  89    return result;
  90 }
  91
  92 inline const std::pair<boost::uintmax_t, boost::uintmax_t>&
  93    get_max_errors(const char* type_name, const char* test_name, const char* group_name)
  94 {
  95    static const std::pair<boost::uintmax_t, boost::uintmax_t> defaults(1, 1);
  96    std::string name = build_test_name(type_name, test_name, group_name);
  97    list_type& l = get_expected_data();
  98    list_type::const_iterator a(l.begin()), b(l.end());
  99    while(a != b)
 100    {
 101       if(regex_match(name, a->first))
 102       {
 103 #if 0
 104          std::cout << name << std::endl;
 105          std::cout << a->first.str() << std::endl;
 106 #endif
 107          return a->second;
 108       }
 109       ++a;
 110    }
 111    return defaults;
 112 }
 113
 114 template <class T, class Seq>
 115 void handle_test_result(const boost::math::tools::test_result<T>& result,
 116                        const Seq& worst, int row,
 117                        const char* type_name,
 118                        const char* test_name,
 119                        const char* group_name)
 120 {
 121 #ifdef BOOST_MSVC
 122 #pragma warning(push)
 123 #pragma warning(disable:4127)
 124 #endif
 125    using namespace std; // To aid selection of the right pow.
 126    T eps = boost::math::tools::epsilon<T>();
 127    std::cout << std::setprecision(4);
 128
 129    T max_error_found = (result.max)()/eps;
 130    T mean_error_found = result.rms()/eps;
 131    //
 132    // Begin by printing the main tag line with the results:
 133    //
 134    std::cout << test_name << "<" << type_name << "> Max = " << max_error_found
 135       << " RMS Mean=" << mean_error_found;
 136    //
 137    // If the max error is non-zero, give the row of the table that
 138    // produced the worst error:
 139    //
 140    if((result.max)() != 0)
 141    {
 142       std::cout << "\n    worst case at row: "
 143          << row << "\n    { ";
 144       if(std::numeric_limits<T>::digits10)
 145       {
 146          std::cout << std::setprecision(std::numeric_limits<T>::digits10 + 2);
 147       }
 148       else
 149       {
 150          std::cout << std::setprecision(std::numeric_limits<long double>::digits10 + 2);
 151       }
 152       for(unsigned i = 0; i < worst.size(); ++i)
 153       {
 154          if(i)
 155             std::cout << ", ";
 156 #if defined(__SGI_STL_PORT)
 157          std::cout << boost::math::tools::real_cast<double>(worst[i]);
 158 #else
 159          std::cout << worst[i];
 160 #endif
 161       }
 162       std::cout << " }";
 163    }
 164    std::cout << std::endl;
 165    //
 166    // Now verify that the results are within our expected bounds:
 167    //
 168    std::pair<boost::uintmax_t, boost::uintmax_t> const& bounds = get_max_errors(type_name, test_name, group_name);
 169    if(bounds.first < max_error_found)
 170    {
 171       std::cerr << "Peak error greater than expected value of " << bounds.first << std::endl;
 172       BOOST_CHECK(bounds.first >= max_error_found);
 173    }
 174    if(bounds.second < mean_error_found)
 175    {
 176       std::cerr << "Mean error greater than expected value of " << bounds.second << std::endl;
 177       BOOST_CHECK(bounds.second >= mean_error_found);
 178    }
 179    std::cout << std::endl;
 180 #ifdef BOOST_MSVC
 181 #pragma warning(pop)
 182 #endif
 183 }
 184
 185 template <class T, class Seq>
 186 void print_test_result(const boost::math::tools::test_result<T>& result,
 187                        const Seq& worst, int row, const char* name, const char* test)
 188 {
 189    using namespace std; // To aid selection of the right pow.
 190    T eps = boost::math::tools::epsilon<T>();
 191    std::cout << std::setprecision(4);
 192
 193    T max_error_found = (result.max)()/eps;
 194    T mean_error_found = result.rms()/eps;
 195    //
 196    // Begin by printing the main tag line with the results:
 197    //
 198    std::cout << test << "(" << name << ") Max = " << max_error_found
 199       << " RMS Mean=" << mean_error_found;
 200    //
 201    // If the max error is non-zero, give the row of the table that
 202    // produced the worst error:
 203    //
 204    if((result.max)() != 0)
 205    {
 206       std::cout << "\n    worst case at row: "
 207          << row << "\n    { ";
 208       for(unsigned i = 0; i < worst.size(); ++i)
 209       {
 210          if(i)
 211             std::cout << ", ";
 212          std::cout << worst[i];
 213       }
 214       std::cout << " }";
 215    }
 216    std::cout << std::endl;
 217 }
 218
 219 #endif // BOOST_MATH_HANDLE_TEST_RESULT
 220