libs/multiprecision/test/math/test_binomial_coeff.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_binomial_coeff.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        ".*",              // test data group
  29        ".*", 3000, 1500); // test function
  30    add_expected_result(
  31        ".*",                         // compiler
  32        ".*",                         // stdlib
  33        ".*",                         // platform
  34        ".*mpfr_float_backend<18>.*", // test type(s)
  35        ".*",                         // test data group
  36        ".*", 750, 150);              // test function
  37    add_expected_result(
  38        ".*",                        // compiler
  39        ".*",                        // stdlib
  40        ".*",                        // platform
  41        ".*mpfr_float_backend<0>.*", // test type(s)
  42        ".*",                        // test data group
  43        ".*", 150, 100);             // test function
  44    add_expected_result(
  45        ".*",           // compiler
  46        ".*",           // stdlib
  47        ".*",           // platform
  48        ".*",           // test type(s)
  49        ".*",           // test data group
  50        ".*", 100, 20); // test function
  51    //
  52    // Finish off by printing out the compiler/stdlib/platform names,
  53    // we do this to make it easier to mark up expected error rates.
  54    //
  55    std::cout << "Tests run with " << BOOST_COMPILER << ", "
  56              << BOOST_STDLIB << ", " << BOOST_PLATFORM << std::endl;
  57 }
  58
  59 template <class T>
  60 void test(T t, const char* p)
  61 {
  62    test_binomial(t, p);
  63 }
  64
  65 BOOST_AUTO_TEST_CASE(test_main)
  66 {
  67    using namespace boost::multiprecision;
  68    expected_results();
  69    //
  70    // Test at:
  71    // 18 decimal digits: tests 80-bit long double approximations
  72    // 30 decimal digits: tests 128-bit long double approximations
  73    // 35 decimal digits: tests arbitrary precision code
  74    //
  75    ALL_TESTS
  76 }