| /////////////////////////////////////////////////////////////// |
| // 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 http://www.boost.org/LICENSE_1_ |
| // |
| // 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> |
| |
| #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 |
| ".*", // 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 ) |
| { |
| 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 |
| } |
| |