libs/multiprecision/test/math/test_digamma.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_digamma.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        ".*mpfr_float_backend<18>.*", // test type(s)
  24        ".*Negative.*",               // test data group
  25        ".*", 20000, 2000);           // test function
  26    add_expected_result(
  27        ".*",           // compiler
  28        ".*",           // stdlib
  29        ".*",           // platform
  30        ".*",           // test type(s)
  31        ".*Negative.*", // test data group
  32        ".*", 550, 40); // test function
  33    add_expected_result(
  34        ".*",                         // compiler
  35        ".*",                         // stdlib
  36        ".*",                         // platform
  37        ".*cpp_dec_float.*",          // test type(s)
  38        ".*Near the Positive Root.*", // test data group
  39        ".*", 2500, 200);             // test function
  40    add_expected_result(
  41        ".*",                         // compiler
  42        ".*",                         // stdlib
  43        ".*",                         // platform
  44        ".*mpfr_float_backend<0>.*",  // test type(s)
  45        ".*Near the Positive Root.*", // test data group
  46        ".*", 30000, 2000);           // test function
  47    add_expected_result(
  48        ".*",                         // compiler
  49        ".*",                         // stdlib
  50        ".*",                         // platform
  51        ".*",                         // test type(s)
  52        ".*Near the Positive Root.*", // test data group
  53        ".*", 6000, 1000);            // test function
  54    add_expected_result(
  55        ".*",          // compiler
  56        ".*",          // stdlib
  57        ".*",          // platform
  58        ".*",          // test type(s)
  59        ".*",          // test data group
  60        ".*", 80, 30); // test function
  61    //
  62    // Finish off by printing out the compiler/stdlib/platform names,
  63    // we do this to make it easier to mark up expected error rates.
  64    //
  65    std::cout << "Tests run with " << BOOST_COMPILER << ", "
  66              << BOOST_STDLIB << ", " << BOOST_PLATFORM << std::endl;
  67 }
  68
  69 template <class T>
  70 void test(T t, const char* p)
  71 {
  72    test_digamma(t, p);
  73 }
  74
  75 BOOST_AUTO_TEST_CASE(test_main)
  76 {
  77    using namespace boost::multiprecision;
  78    expected_results();
  79    //
  80    // Test at:
  81    // 18 decimal digits: tests 80-bit long double approximations
  82    // 30 decimal digits: tests 128-bit long double approximations
  83    // 35 decimal digits: tests arbitrary precision code
  84    //
  85    ALL_TESTS
  86 }