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- // Copyright John Maddock 2005.
- // Copyright Paul A. Bristow 2010
- // Use, modification and distribution are subject to the
- // Boost Software License, Version 1.0. (See accompanying file
- // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- #include <pch_light.hpp>
- // Requires MS extensions permitted or fails to link.
- #define BOOST_MATH_OVERFLOW_ERROR_POLICY ignore_error
- #include <boost/math/concepts/real_concept.hpp>
- #define BOOST_TEST_MAIN
- #include <boost/test/unit_test.hpp>
- #include <boost/test/tools/floating_point_comparison.hpp>
- #include <boost/math/special_functions/math_fwd.hpp>
- #include "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
- ".*", // test type(s)
- ".*", // test data group
- ".*", // test function
- 4, // Max Peek error
- 3); // 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 )
- {
- expected_results();
- BOOST_MATH_CONTROL_FP;
- test(float(0), "float");
- test(double(0), "double");
- //
- // The long double version of these tests fails on some platforms
- // due to poor std lib support (not enough digits returned from
- // std::log and std::exp):
- //
- #if !defined(BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS)
- test((long double)(0), "long double");
- #ifndef BOOST_MATH_NO_REAL_CONCEPT_TESTS
- test((boost::math::concepts::real_concept)(0), "real_concept");
- #endif
- #else
- std::cout << "<note>The long double tests have been disabled on this platform "
- "either because the long double overloads of the usual math functions are "
- "not available at all, or because they are too inaccurate for these tests "
- "to pass.</note>" << std::endl;
- #endif
- }
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