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 http://www.boost.org/LICENSE_1_
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
12 #include <boost/math/special_functions/log1p.hpp>
13 #include <boost/math/special_functions/expm1.hpp>
15 #include "table_type.hpp"
17 #include "libs/math/test/log1p_expm1_test.hpp"
23 // This file tests the functions log1p and expm1. The accuracy tests
24 // use values generated with NTL::RR at 1000-bit precision
25 // and our generic versions of these functions.
27 // Note that when this file is first run on a new platform many of
28 // these tests will fail: the default accuracy is 1 epsilon which
29 // is too tight for most platforms. In this situation you will
30 // need to cast a human eye over the error rates reported and make
31 // a judgement as to whether they are acceptable. Either way please
32 // report the results to the Boost mailing list. Acceptable rates of
33 // error are marked up below as a series of regular expressions that
34 // identify the compiler/stdlib/platform/data-type/test-data/test-function
35 // along with the maximum expected peek and RMS mean errors for that
39 void expected_results()
42 // Define the max and mean errors expected for
43 // various compilers and platforms.
47 // Catch all cases come last:
54 ".*", // test data group
55 ".*", // test function
60 // Finish off by printing out the compiler/stdlib/platform names,
61 // we do this to make it easier to mark up expected error rates.
63 std::cout << "Tests run with " << BOOST_COMPILER << ", "
64 << BOOST_STDLIB << ", " << BOOST_PLATFORM << std::endl;
68 BOOST_AUTO_TEST_CASE( test_main )
73 // 18 decimal digits: tests 80-bit long double approximations
74 // 30 decimal digits: tests 128-bit long double approximations
75 // 35 decimal digits: tests arbitrary precision code