libs/multiprecision/test/math/test_gamma.cpp

   1 ///////////////////////////////////////////////////////////////
   2 //  Copyright 2011 John Maddock. Distributed under the Boost
   3 //  Software License, Version 1.0. (See accompanying file
   4 //  LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt
   5
   6 #include "setup.hpp"
   7 #include "table_type.hpp"
   8 #define TEST_UDT
   9
  10 #include <boost/math/special_functions/math_fwd.hpp>
  11 #include "libs/math/test/test_gamma.hpp"
  12
  13 void expected_results()
  14 {
  15    //
  16    // Define the max and mean errors expected for
  17    // various compilers and platforms.
  18    //
  19    add_expected_result(
  20        ".*",                  // compiler
  21        ".*",                  // stdlib
  22        ".*",                  // platform
  23        ".*gmp_float<18>.*",   // test type(s)
  24        ".*",                  // test data group
  25        "tgamma", 4000, 2500); // test function
  26    add_expected_result(
  27        ".*",                        // compiler
  28        ".*",                        // stdlib
  29        ".*",                        // platform
  30        ".*mpfr_float_backend<0>.*", // test type(s)
  31        "factorials",                // test data group
  32        "tgamma", 400, 100);         // test function
  33    add_expected_result(
  34        ".*",               // compiler
  35        ".*",               // stdlib
  36        ".*",               // platform
  37        ".*",               // test type(s)
  38        "factorials",       // test data group
  39        "tgamma", 170, 70); // test function
  40    add_expected_result(
  41        ".*",                // compiler
  42        ".*",                // stdlib
  43        ".*",                // platform
  44        ".*",                // test type(s)
  45        "factorials",        // test data group
  46        "lgamma", 750, 100); // test function
  47 #ifdef BOOST_INTEL
  48    add_expected_result(
  49        ".*",                   // compiler
  50        ".*",                   // stdlib
  51        ".*",                   // platform
  52        "float128",             // test type(s)
  53        ".*near -.*",           // test data group
  54        ".*", 150000L, 30000L); // test function
  55 #endif
  56    add_expected_result(
  57        ".*",                // compiler
  58        ".*",                // stdlib
  59        ".*",                // platform
  60        ".*",                // test type(s)
  61        "near.*",            // test data group
  62        "tgamma", 250, 120); // test function
  63    add_expected_result(
  64        ".*",                 // compiler
  65        ".*",                 // stdlib
  66        ".*",                 // platform
  67        ".*",                 // test type(s)
  68        "near.*",             // test data group
  69        "lgamma", 1400, 250); // test function
  70    add_expected_result(
  71        ".*",                     // compiler
  72        ".*",                     // stdlib
  73        ".*",                     // platform
  74        ".*",                     // test type(s)
  75        "tgamma1pm1.*",           // test data group
  76        "tgamma1pm1", 1500, 400); // test function
  77    //
  78    // Finish off by printing out the compiler/stdlib/platform names,
  79    // we do this to make it easier to mark up expected error rates.
  80    //
  81    std::cout << "Tests run with " << BOOST_COMPILER << ", "
  82              << BOOST_STDLIB << ", " << BOOST_PLATFORM << std::endl;
  83 }
  84
  85 template <class T>
  86 void test(T t, const char* p)
  87 {
  88    test_gamma(t, p);
  89 }
  90
  91 BOOST_AUTO_TEST_CASE(test_main)
  92 {
  93    using namespace boost::multiprecision;
  94    expected_results();
  95    //
  96    // Test at:
  97    // 18 decimal digits: tests 80-bit long double approximations
  98    // 30 decimal digits: tests 128-bit long double approximations
  99    // 35 decimal digits: tests arbitrary precision code
 100    //
 101    ALL_TESTS
 102 }