libs/multiprecision/test/math/test_beta.cpp

   1 ///////////////////////////////////////////////////////////////
   2 //  Copyright Christopher Kormanyos 2002 - 2011.
   3 //  Copyright 2011 John Maddock. Distributed under the Boost
   4 //  Software License, Version 1.0. (See accompanying file
   5 //  LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt
   6 //
   7 // This work is based on an earlier work:
   8 // "Algorithm 910: A Portable C++ Multiple-Precision System for Special-Function Calculations",
   9 // in ACM TOMS, {VOL 37, ISSUE 4, (February 2011)} (C) ACM, 2011. http://doi.acm.org/10.1145/1916461.1916469
  10
  11 #include "setup.hpp"
  12 #include "table_type.hpp"
  13
  14 #include <boost/math/special_functions/math_fwd.hpp>
  15 #include "libs/math/test/test_beta.hpp"
  16
  17 void expected_results()
  18 {
  19    //
  20    // Define the max and mean errors expected for
  21    // various compilers and platforms.
  22    //
  23    add_expected_result(
  24        ".*",                      // compiler
  25        ".*",                      // stdlib
  26        ".*",                      // platform
  27        ".*gmp.*",                 // test type(s)
  28        "Beta Function: Medium.*", // test data group
  29        "beta", 2300, 1000);       // test function
  30    add_expected_result(
  31        ".*",                         // compiler
  32        ".*",                         // stdlib
  33        ".*",                         // platform
  34        ".*gmp.*",                    // test type(s)
  35        "Beta Function: Divergent.*", // test data group
  36        "beta", 2200, 1000);          // test function
  37    add_expected_result(
  38        ".*",                             // compiler
  39        ".*",                             // stdlib
  40        ".*",                             // platform
  41        ".*mpfr_float_backend\\<18\\>.*", // test type(s)
  42        "Beta Function: Small.*",         // test data group
  43        "beta", 1000, 750);               // test function
  44    add_expected_result(
  45        ".*",                     // compiler
  46        ".*",                     // stdlib
  47        ".*",                     // platform
  48        ".*",                     // test type(s)
  49        "Beta Function: Small.*", // test data group
  50        "beta", 8, 5);            // test function
  51    add_expected_result(
  52        ".*",                      // compiler
  53        ".*",                      // stdlib
  54        ".*",                      // platform
  55        ".*",                      // test type(s)
  56        "Beta Function: Medium.*", // test data group
  57        "beta", 1000, 750);        // test function
  58    add_expected_result(
  59        ".*",                         // compiler
  60        ".*",                         // stdlib
  61        ".*",                         // platform
  62        ".*",                         // test type(s)
  63        "Beta Function: Divergent.*", // test data group
  64        "beta", 1000, 700);           // test function
  65    //
  66    // Finish off by printing out the compiler/stdlib/platform names,
  67    // we do this to make it easier to mark up expected error rates.
  68    //
  69    std::cout << "Tests run with " << BOOST_COMPILER << ", "
  70              << BOOST_STDLIB << ", " << BOOST_PLATFORM << std::endl;
  71 }
  72
  73 template <class T>
  74 void test(T t, const char* p)
  75 {
  76    test_beta(t, p);
  77 }
  78
  79 BOOST_AUTO_TEST_CASE(test_main)
  80 {
  81    using namespace boost::multiprecision;
  82    expected_results();
  83    //
  84    // Test at:
  85    // 18 decimal digits: tests 80-bit long double approximations
  86    // 30 decimal digits: tests 128-bit long double approximations
  87    // 35 decimal digits: tests arbitrary precision code
  88    //
  89    ALL_TESTS
  90 }