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- ///////////////////////////////////////////////////////////////
- // Copyright Christopher Kormanyos 2002 - 2011.
- // Copyright 2011 John Maddock. Distributed under the Boost
- // Software License, Version 1.0. (See accompanying file
- // LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt
- //
- // This work is based on an earlier work:
- // "Algorithm 910: A Portable C++ Multiple-Precision System for Special-Function Calculations",
- // in ACM TOMS, {VOL 37, ISSUE 4, (February 2011)} (C) ACM, 2011. http://doi.acm.org/10.1145/1916461.1916469
- #include "setup.hpp"
- //#include <boost/math/special_functions/log1p.hpp>
- //#include <boost/math/special_functions/expm1.hpp>
- #define BOOST_TEST_MAIN
- #include <boost/test/unit_test.hpp>
- #include <boost/test/floating_point_comparison.hpp>
- #include <boost/math/special_functions/math_fwd.hpp>
- #include "table_type.hpp"
- #include "libs/math/test/log1p_expm1_test.hpp"
- //
- // DESCRIPTION:
- // ~~~~~~~~~~~~
- //
- // This file tests the functions log1p and expm1. The accuracy tests
- // use values generated with NTL::RR at 1000-bit precision
- // and our generic versions of these functions.
- //
- // Note that when this file is first run on a new platform many of
- // these tests will fail: the default accuracy is 1 epsilon which
- // is too tight for most platforms. In this situation you will
- // need to cast a human eye over the error rates reported and make
- // a judgement as to whether they are acceptable. Either way please
- // report the results to the Boost mailing list. Acceptable rates of
- // error are marked up below as a series of regular expressions that
- // identify the compiler/stdlib/platform/data-type/test-data/test-function
- // along with the maximum expected peek and RMS mean errors for that
- // test.
- //
- void expected_results()
- {
- //
- // Define the max and mean errors expected for
- // various compilers and platforms.
- //
- //
- // Catch all cases come last:
- //
- add_expected_result(
- ".*", // compiler
- ".*", // stdlib
- ".*", // platform
- ".*gmp_float<18>.*", // test type(s)
- ".*", // test data group
- ".*", // test function
- 500, // Max Peek error
- 100); // Max mean error
- add_expected_result(
- ".*", // compiler
- ".*", // stdlib
- ".*", // platform
- ".*mpfr_float_backend<18>.*", // test type(s)
- ".*", // test data group
- ".*", // test function
- 500, // Max Peek error
- 100); // Max mean error
- add_expected_result(
- ".*", // compiler
- ".*", // stdlib
- ".*", // platform
- ".*", // test type(s)
- ".*", // test data group
- ".*", // test function
- 8, // Max Peek error
- 5); // Max mean error
- //
- // Finish off by printing out the compiler/stdlib/platform names,
- // we do this to make it easier to mark up expected error rates.
- //
- std::cout << "Tests run with " << BOOST_COMPILER << ", "
- << BOOST_STDLIB << ", " << BOOST_PLATFORM << std::endl;
- }
- BOOST_AUTO_TEST_CASE(test_main)
- {
- using namespace boost::multiprecision;
- expected_results();
- //
- // Test at:
- // 18 decimal digits: tests 80-bit long double approximations
- // 30 decimal digits: tests 128-bit long double approximations
- // 35 decimal digits: tests arbitrary precision code
- //
- ALL_TESTS
- }
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